WO2011026439A1 - 基于光纤通道网络的属性传播方法和交换机系统 - Google Patents

基于光纤通道网络的属性传播方法和交换机系统 Download PDF

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Publication number
WO2011026439A1
WO2011026439A1 PCT/CN2010/076616 CN2010076616W WO2011026439A1 WO 2011026439 A1 WO2011026439 A1 WO 2011026439A1 CN 2010076616 W CN2010076616 W CN 2010076616W WO 2011026439 A1 WO2011026439 A1 WO 2011026439A1
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WO
WIPO (PCT)
Prior art keywords
network element
switch
attribute
side port
element side
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PCT/CN2010/076616
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English (en)
French (fr)
Inventor
郭英军
李飞宇
张锋
Original Assignee
杭州华三通信技术有限公司
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Application filed by 杭州华三通信技术有限公司 filed Critical 杭州华三通信技术有限公司
Priority to EP10813361.2A priority Critical patent/EP2475111A4/en
Priority to US13/387,336 priority patent/US8792386B2/en
Publication of WO2011026439A1 publication Critical patent/WO2011026439A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/10Protocols in which an application is distributed across nodes in the network
    • H04L67/1097Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00Packet switching elements
    • H04L49/35Switches specially adapted for specific applications
    • H04L49/356Switches specially adapted for specific applications for storage area networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00Packet switching elements
    • H04L49/35Switches specially adapted for specific applications
    • H04L49/356Switches specially adapted for specific applications for storage area networks
    • H04L49/357Fibre channel switches

Definitions

  • the invention relates to a property configuration technology of a switch, in particular to a fiber channel based
  • FC Fibre Channel
  • VSANs virtual storage networks
  • only servers and physical disks belonging to the same VSAN can communicate, and in order to implement communication between the servers belonging to the VSAN and the physical disks, You need to manually configure the attributes of the ports on the server side and the ports on the physical disk side of the switch between the server and the physical disk to be added to the corresponding VSAN. If there are N (N is a positive integer greater than or equal to 1) interconnected switches between the server and the physical disk, the network administrator needs to manually configure 2N times.
  • the configurable attributes also include the different domains (Zones) that each port is joined to, etc., which is similar to VSAN, and is not listed here.
  • the present invention provides an FC network-based attribute propagation method and a FC network-based switch system, which can improve port attribute allocation efficiency.
  • the present invention provides an FC network-based attribute propagation method, which is applied to a switch that interconnects a first network element and a second network element, and sets an initial state of all ports of all switches for each attribute to be unregistered and does not need to be registered.
  • Propagating the empty state of the property, and the property propagation method includes the following steps for each property:
  • the switch After the switch is configured to indicate that the attribute is registered and the first state of the attribute needs to be propagated, the switch configures the second network element side port in the empty state after the first network element side port in the empty state is configured. In order to indicate that the attribute is not registered, but the second state of the attribute is to be propagated, and the second network element side port is sent to the second network element to notify the opposite end to register the attribute, and the local end does not register the attribute.
  • First registration > 3 ⁇ 4 text
  • the switch After the second network element side port in the second state is configured as the first state, the switch sends the first network element side port configured to be in the first state to the first network element.
  • the second registration message is used to notify the peer to register the attribute and indicates that the local end has registered the attribute.
  • the switch When the switch is adjacent to the first network element, the switch is in the second network element in the empty state according to the second registration message sent by the first network element to the second network element, or manually configured.
  • the side port is configured as the first state;
  • the switch When the switch is not adjacent to the first network element, the switch is in the empty state according to the first registration message sent by the neighboring switch on the first network element side to the second network element.
  • a network element side port is configured as the first state;
  • the switch When the switch is adjacent to the second network element, the switch is in the second network element side of the second state according to the second registration message that is forwarded in the direction of the first network element by the second network element.
  • the port is configured as the first state; When the switch is not adjacent to the second network element, the switch is in the second state according to the second registration message sent by the neighboring switch on the second network element side to the first network element.
  • the second network element side port is configured as the first state.
  • the attribute propagation method includes the following steps for each attribute:
  • the switch After the first network element side port is configured to return to the empty state, the switch sends the second network element side port to the second network element to notify the peer end of the attribute, and the local end is not revoked.
  • the first revocation message of the attribute
  • the switch After the second network element side port is configured to return to the empty state, the switch sends the first network element side port that has been configured to return to the empty state to send to the first network element to notify the opposite end to revoke the attribute. And indicates that the local end has revoked the second revocation message of the attribute.
  • the switch When the switch is adjacent to the first network element, the switch configures the first network element side port back according to the second revocation message sent by the first network element to the second network element, or manually configured. Empty state
  • the switch When the switch is not adjacent to the first network element, the switch configures the first network element side port according to the first revocation packet sent by the neighboring switch on the first network element side to the second network element. Return to the empty state;
  • the switch When the switch is adjacent to the second network element, the switch configures the second network element side port back to the empty state according to the second revocation packet that is forwarded by the second network element to the first network element. ;
  • the switch configures the second network element side port according to the second revocation packet sent by the neighboring switch on the second network element side to the first network element. Go back to the empty state.
  • the first network element side port of each switch is configured with a first registration timer and a first pin timer
  • the second network element side port of each switch is configured with a second registration timer and a second pin timer
  • Each switch triggers a second registration timer to start timing when the first registration message or the second registration message is sent by the second network element side port, and after the second registration timer arrives, Resending the first registration message or the second registration message by using the second network element side port
  • each switch receives the first registration message or the When the second registration message is cleared, the first revocation timer is cleared and restarts, and after the first pin timer arrives, the first network element side port is configured back to the empty state; each switch is in its The first network element side port triggers the first registration timer to start timing when the second registration packet is sent, and retransmits the second registration report by using the first network element side port after the first registration timer is timed.
  • Each switch resets the second undo timer every time the second registration packet is received by the second network element side
  • the first network element side port of each switch is configured with a first to-be-propagated attribute list, which is used to record all attributes that need to be transmitted on the first network element side port, and attributes that need to be revoked;
  • the side port is configured with a first hold timer, which is used to start timing when the port state changes on the first network element side, and when the time arrives, the trigger switch uses the first network element side port to send the record in the first to-be-propagated attribute list.
  • a second registration message corresponding to each attribute, and/or a second message;
  • the second network element side port of each switch is configured with a second to-be-propagated attribute list, which is used to record all attributes that need to be transmitted on the second network element side port, and attributes that need to be revoked;
  • the side port is configured with a second hold timer, which is used to start timing when the state of the port on the second network element side changes, and when the time arrives, the trigger switch uses the second network element side port to send the record in the second to-be-propagated attribute list.
  • Each attribute corresponds to a first registration message, and/or a second registration message, and/or a first message, and/or a second message.
  • the first registration message, the second registration message, the first revocation message, and the second revocation message are all Switch fiber optic interactive connection service SW_ILS protocol message,
  • the SW_ILS protocol command in the message payload field of the SW_ILS protocol packet is set to indicate a value for attribute propagation, and starts from the 4th byte of the packet payload field, carries the attribute type, The number of bytes occupied by each type of attribute, the number of attributes of each type, and the attribute items of each type;
  • Each attribute item further includes an event type and an attribute value for the attribute item, and the value of the event type is used to identify the first registration message, or the second registration message, or the first revocation message, or Two 4 sales messages.
  • the attribute is the virtual storage network VSAN to which the port is joined, or the domain ZONE. .
  • the invention provides an FC network-based switch system, the switch system is connected between the first network element and the second network element, and includes a plurality of switches, for each attribute: each switch is in the space
  • the first network element side port of the state is configured to indicate that the attribute is registered and the first state of the attribute needs to be propagated
  • the second network element side port that is in the empty state is configured to indicate that the attribute is not registered
  • the second network element side port is used to send a first registration message for notifying the opposite end to register the attribute to the second network element direction, and indicating that the local end does not register the attribute.
  • each switch uses the first network element side port that has been configured as the first state to the first network element.
  • the direction sends a second registration message for notifying the peer to register the attribute and indicating that the local end has registered the attribute.
  • the switch that is adjacent to the first network element is further configured according to the second registration packet that is sent by the first network element to the second network element, or is manually configured, and is in the empty state of the first network element side port. Configured as the first state;
  • the switch that is not adjacent to the first network element, according to the first registration packet sent by the neighboring switch on the first network element side to the second network element, is in the empty state.
  • a network element side port is configured as the first state;
  • the switch that is adjacent to the second network element further configures the second network element side port that is in the second state according to the second registration packet that is forwarded by the second network element to the first network element. Is the first state;
  • the switch that is not adjacent to the second network element, according to the second registration packet sent by the neighboring switch on the second network element side to the first network element, is in the second state.
  • the network element side port is configured as the first state.
  • the second network element side port is sent to the second network element direction to notify the opposite end to sell the attribute and the present The first undo message of the attribute is not revoked;
  • each switch is sent to the first network element side to notify the opposite end by using the first network element side port that has been configured to return to the empty state.
  • the attribute is revoked, and the second revocation message of the attribute has been revoked by the local end.
  • the switch is adjacent to the first network element, and the switch configures the first network element side port back to the air according to the second revocation message sent by the first network element to the second network element direction or manually configured.
  • a switch that is not adjacent to the first network element, and the switch configures the first network element side port according to the first revocation packet sent by the neighboring switch on the first network element side to the second network element.
  • the switch is configured to return the second network element side port to the empty state according to the second revocation packet that is forwarded by the second network element to the first network element.
  • the switch configures the second network element side port back according to the second revocation packet sent by the neighboring switch on the second network element side to the first network element.
  • the first network element side port of each switch is further configured with a first registration timer and a first
  • the pin timer, the second network element side port of each switch is further provided with a second registration timer and a second pin timer, wherein
  • the first registration timer is configured to start timing when the first registration packet or the second registration packet is sent each time the second network element side port of the switch to which the switch belongs, and trigger the use of the switch to which the switch belongs after the timing arrives. Transmitting, by the second network element side port, the first registration message or the second registration >3 ⁇ 4 text;
  • the first pin timer is configured to clear the first registration message or the second registration message every time the first network element side port of the switch to which the switch belongs, and restart the timing, after the time arrives Triggering the switch to which the switch belongs to the first network element side port to return to the empty state;
  • the second registration timer is configured to start timing when the second registration packet is sent by the first network element side port of the switch to which the switch belongs. After the time arrives, the switch belongs to trigger the switch to resend the second registration >3 ⁇ 4 text by using the first network element side port;
  • the second pin timer is configured to clear and restart the time every time the first registration message is received on the second network element side port of the switch to which the switch belongs, and trigger the switch to be activated after the time arrives.
  • the two network element side ports are configured to return to the empty state.
  • the first network element side port of each switch is further configured with a first to-be-propagated attribute list, which is used to record all attributes that need to be transmitted on the first network element side port, and attributes that need to be sold; the first network element of each switch
  • the side port is further configured with a first hold timer, which is used to start timing when the state of the first network element side port changes, and when the time arrives, the trigger switch uses the first network element side port to send the first to-be-propagated attribute list. a second registration message corresponding to each attribute recorded, and/or a second message;
  • the second network element side port of each switch is further configured with a second to-be-propagated attribute list, which is used to record all attributes that need to be transmitted on the second network element side port, and attributes that need to be sold; the second network element of each switch
  • the side port is further provided with a second hold timer, When the state of the port on the second network element side changes, the timing starts, and when the time arrives, the triggering switch uses the second network element side port to send the first registration message corresponding to each attribute recorded in the second to-be-propagated attribute list, And/or a second registration message, and/or a first message, and/or a second message.
  • the first registration message, the second registration message, the first revocation message, and the second revocation message are both the switch fiber optic interactive connection service SW_ILS protocol message.
  • the SW_ILS protocol command in the message payload field of the SW_ILS protocol packet is set to indicate a value for attribute propagation, and starts from the 4th byte of the packet payload field, carries the attribute type, The number of bytes occupied by each type of attribute, the number of attributes of each type, and the attribute items of each type;
  • Each attribute item further includes an event type and an attribute value for the attribute item, and the value of the event type is used to identify the first registration message, or the second registration message, or the first revocation message, or Two 4 sales messages.
  • the attribute is the virtual storage network VSAN to which the port is joined, or the domain ZONE. .
  • the switch can automatically use the second network element side port to propagate the attribute after the switch registers the attribute on the first network element side port, so that the next adjacent switch can also be the first one.
  • the network side port registers the attribute, and continues to automatically use the second network element side port to propagate the attribute until it propagates to the second network element, so that the first switch of the first network element and the second network element are the first.
  • the network side port automatically registers the attribute. After that, each switch can also use the first network element side port to forward the attribute back to the next network element side port to make the next phase.
  • the neighboring switch can also register the second network element side port and continue to use the first network element side port to forward the attribute back to the first network element until the first network element and the second network element are forwarded.
  • This attribute is also automatically registered on the second NE side port of all switches. In this way, the first network element side port and the second network of all switches between the first network element and the second network element can be configured without manually configuring each port.
  • the attribute is automatically registered on the meta-side port, thereby improving the configuration efficiency of the port attribute and avoiding configuration errors.
  • the propagation of any attribute can be realized by the present invention, thereby making the present invention highly versatile.
  • the propagation of the attribute is started by the edge switch of the first network element, and the edge switch may register the attribute of the first network element side port according to the registration message sent by the first network element, or manually register the attribute.
  • the edge switch may register the attribute manually, other switches that are not adjacent to the first network element can automatically implement attribute registration of the first network element side port; and the other side edge adjacent to the second network element
  • the switch can directly register the attributes of the second network element side port according to the registration message replied by the second network element.
  • the present invention can also be automatically implemented by the interaction between the switches, thereby further improving the port attribute allocation efficiency.
  • the registered ports of each switch can periodically send corresponding registration messages; if any port of any switch does not receive duplicates within a certain period of time
  • the registration of the sent "3 ⁇ 4 text" indicates that the link may be invalid, and the attributes of the side port of the four pins are registered to avoid the occurrence of the port attribute failure due to the link failure, thereby improving the port attribute. Configuration reliability.
  • the present invention may be configured to reduce link flapping caused by separately transmitting corresponding messages for each attribute between switches.
  • the present invention can implement various types of registration messages and various types of revocation messages by improving the message format in the existing FC network, thereby making the solution of the present invention easy to implement and easy to be compatible with the FC network.
  • Figure la Figure lg is a schematic diagram of an attribute propagation process in the embodiment of the present invention
  • Figures 2a to 2g are schematic diagrams of another attribute propagation process in the embodiment of the present invention
  • Figures 3a to 3g are still another embodiment of the present invention Schematic diagram of the attribute propagation process
  • FIG. 4 is an exemplary flowchart of the attribute propagation method in the embodiment of the present invention. Mode for carrying out the invention
  • the edge switch adjacent to the first network element may be firstly ordered.
  • the first network element side port registers the corresponding attribute, and then the second network element side port of the edge switch automatically propagates the attribute to the second network element direction, so that all other switches between the edge switch and the second network element are
  • the first network element side port of the first network element can be automatically registered with the corresponding attribute, and the second network element side port is automatically used to continue to propagate the attribute to the second network element. In this way, the first network element side port of all switches between the first network element and the second network element can register corresponding attributes.
  • the second network element side port of the other side edge switch adjacent to the second network element is further registered with the corresponding attribute, and then automatically switched to the first network element side port of the other side edge switch.
  • the attribute is reversely propagated in the direction of the network element, so that all other switches between the other side edge switch and the first network element can automatically register the corresponding attribute of the second network element side port and automatically utilize the same.
  • the first network element side port that has registered the attribute continues to propagate the attribute backward in the direction of the first network element.
  • the side port can also register the corresponding attribute, so that the first network element and the second network element can communicate normally through all the switches.
  • the propagation of the attribute is usually started by the edge switch of the first network element.
  • the edge switch can register the attribute of the first network element side port according to the attribute of the first network element, or manually register the attribute (how to manually register the attribute)
  • the attributes can be implemented in any of the existing ways. However, it should be noted that even if the edge switch registers the attributes manually, other switches that are not adjacent to the first network element can automatically be attributed according to the propagation.
  • the attribute registration of the port on the first network element side is implemented.
  • the other side edge switch adjacent to the second network element can directly register the attribute of the second network element side port according to the attribute of the second network element back propagation.
  • the notification of revoking an attribute may be propagated between the switches in the same manner as the port registration attribute, so that the automatic revocation of the attribute may be further implemented.
  • the embodiment sets the following states for the port:
  • E Empty (E) state, indicating that the port is not registered with the attribute and does not need to propagate the attribute
  • the static (Sic) state indicates that the port has been manually registered with the attribute and needs to be propagated.
  • the S state and the JI state are only used to distinguish the corresponding attributes of the port registration. Different ways, in essence, both can indicate that the port has registered the attribute, and the attribute needs to be propagated; and the "required" of the status to propagate the attribute, "not required” to propagate the attribute, does not mean that the attribute is in the state Whether the port itself needs to be propagated, but whether other ports on the other side of the machine need to be propagated.
  • this embodiment sets the following types of packets:
  • the JI is in the text, notifying the peer to register the attribute, and indicating that the attribute is not registered at the local end;
  • JE "3 ⁇ 4 ⁇ notify the peer to register the attribute, and indicates that the attribute is not registered by the local end; revoke the non-empty (Leaveln, LI) message, notify the peer to revoke the attribute, and indicate that the attribute is not sold at the local end;
  • the state of the second network element side port P6 is an E state
  • the first network element side port P1 of the SI is manually configured to be in the S state, and the port P1 sends the JI message to the first network element, and the first network element receives the JI message.
  • Configured as the JI state, and the second network element side port P2 is automatically configured to the JE state, and sends the JE >3 ⁇ 4 text to the second network element direction;
  • the first network element side port P3 of S2 is configured to be in the JI state according to the received JE>3 ⁇ 4, and the second network element side port P4 is automatically configured to be in the JE state, and continues to be sent to the second network element.
  • JE message ;
  • the first network element side port P5 of S3 is configured according to the received 1 JI status, and the second network element side port P6 is automatically configured to the JE state, and continues to send JE packets to the second network element.
  • the second network element configures the port for receiving the JE message as JI. State, and pass JI 4 ⁇ in reverse to S3;
  • the second network element side port P6 of the S3 is configured to be in the JI state according to the JI message transmitted in the reverse direction of the second network element, and the first network element side port P5 in the JI state is automatically sent to the first network element.
  • the second network element side port P4 of S2 is configured to be in the JI state according to the JI 4 ⁇ ⁇ ⁇ ⁇ ⁇ , , , , , , , , , ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ JI JI JI Text
  • the second network element side port P2 of the SI is configured to be in the JI state according to the JI message transmitted in the reverse direction of the S2. Since the first network element side port P1 of the S state has propagated the attribute, no processing is performed. .
  • the first network element side port P1 of the SI is manually configured to return to the E state, and the port P1 sends an LE message to the first network element, and the first network element receives the port configuration of the LE message.
  • the second network element side port P2 in the JI state automatically sends the LI message to the second network element.
  • the first network element side port P3 of the S2 is configured to return to the E state according to the received LE message, and the second network element side port P4 in the JI state automatically sends the LI message to the second network element.
  • the first network element side port P5 of the S3 is configured to return to the E state according to the received LE>3 ⁇ 4 text, and the second network element side port P6 in the JI state automatically sends the LI message to the second network element.
  • the second network element configures the port that receives the LE packet back to the E state.
  • the second network element side port P6 of S3 is reversely transmitted according to the second network element.
  • the LE ⁇ ⁇ text is configured to return to the E state, and the first network element side port P5 of the E state automatically sends the LE ⁇ ⁇ message to the first network element direction;
  • the second network element side port P4 of the S2 is configured to return to the E state according to the LE message transmitted in the reverse direction of the S3, and the first network element side port P3 of the E state automatically sends the LE ⁇ to the first network element.
  • the second network element side port P2 of the SI is configured to return to the E state according to the LE message transmitted in the reverse direction of the S2, and the first network element side port P1 of the E state automatically sends the LE message to the first network element.
  • the first network element configures the port that receives the LE packet to return to the E state.
  • the first network element side port P1, the second network element side port P2, the second network element side port P3, the second network element side port P3, and the second network element side port P4, S3 are connected to the first network element side port P5, S3.
  • the state of the second network element side port P6 is an E state;
  • the first network element side port P1 of the SI is configured to be in the JI state according to the JI data sent by the first network element, and the port P1 sends the JI ⁇ text to the first network element direction, and the first network element does not do
  • the second network element side port P2 is automatically configured to be in the JE state, and sends a JE ⁇ message to the second network element direction;
  • the second network element side port P2 of the SI is configured to be in the JI state according to the JI message transmitted in the reverse direction of the S2, and the first network element side port P1 in the JI state is automatically sent to the first network element direction. Therefore, since the port that the first network element receives the JI ⁇ ⁇ text has been configured as the JI state, no processing is performed.
  • the attribute can also be sold in a manner similar to that of FIGS. 2a to 2f, except that the revocation of the attribute can be triggered by the first network element transmitting the LE message.
  • how to trigger and when the first network element and the second network element are triggered to use the JI message to configure the attributes of the corresponding port of the edge switch can be implemented in any manner by a person skilled in the art, and details are not described herein.
  • the attribute propagation method in this embodiment is described in detail based on the foregoing state and various types of packets.
  • FIG. 4 is an exemplary flowchart of an attribute propagation method according to an embodiment of the present invention.
  • the attribute propagation method sets the initial state of all the ports of all the switches between the first network element and the second network element to the E state for each attribute, and as shown in FIG. 4, each switch performs the following for each attribute. Steps:
  • Step 401 After the first network element side port in the E state is configured as the JI state or the S state, the switch configures the second network element side port in the E state as the JE state, and uses the second network element.
  • the side port sends a JE packet to the second NE to notify the peer to register the attribute and indicates that the local end does not register the attribute.
  • the switch can The first network element side port of the local device is configured to be in the JI state according to the JI message sent by the first network element to the second network element, or the switch can directly register the attribute by manual configuration and is configured as S. State
  • the switch usually connects the first network element side port of the local device according to the JE packet sent by the neighboring switch on the first network element side. Configured as JI status;
  • a special case is that the first network element is not adjacent to the first network element.
  • the non-edge switch simultaneously transmits the attribute to the first network element and the second network element at the same time.
  • the non-edge switch simultaneously transmits the attribute to the first network element and the second network element.
  • only the second network element side port of the partial switch in the first network element direction can register the attribute, and the first network element side port of the partial switch in the second network element direction registers the attribute, and thus the special The situation cannot guarantee the normal communication between the first network element and the second network element. This article will not consider this situation for the time being.
  • Step 402 After the second network element side port in the JE state is configured as a JI, the switch sends a ⁇ 3 ⁇ 4 text to the first network element direction by using the first network element side port configured to be in the JI state. The peer is notified to register the attribute and indicates that the local end has registered the attribute.
  • the switch can be based on the switch.
  • the second network element forwards the JI message in the direction of the first network element to configure the second network element side port of the local device to be in the JI state.
  • Step 403 After the first network element side port of the switch is configured to return to the state, the switch sends the LI message to the second network element by using the second network element side port that is configured as the JI, and is used to notify the opposite end to sell the Attribute, and indicates that the attribute is not sold at the local end.
  • the switch can The first network element side port of the local device is configured to return to the state according to the LE text sent by the first network element to the second network element, or the switch can directly configure the attribute by the manual configuration and is configured back. State
  • the step is performed by another switch that is not adjacent to the first network element, the second network element side port of the other adjacent switch on the first network element side of the switch remains in the JI state.
  • the switch is not configured to return to the state. Therefore, before this step, the switch usually sets the local device according to the LI packet sent by the neighboring switch on the first network element side.
  • the NE side port is configured to return to the E state.
  • Step 404 After the second network element side port is configured to return to the E state, the switch sends an LE message to the first network element side by using the first network element side port that has been configured to return to the E state, and is used to notify the opposite end. ⁇ Pin the attribute and indicate that the local has sold the attribute.
  • the switch can be based on the switch.
  • the second network element forwards the LE message in the direction of the first network element and configures the second network element side port of the local device to return to the ⁇ state.
  • the first network element side port of the switch is configured to be in the JI state or the S state, wherein, for the first network element side port of the JI state, although the port indicates that the port needs The corresponding attribute is propagated, but the JI status does not necessarily require the JI message to be sent immediately by the port of the JI status. Instead, the next network element side port of the switch receives the JI message and then propagates.
  • the NE side port sets a registration timer and a Leave timer, and further sets a Join timer and a Leave timing crying port for the second NE side port of each switch.
  • each switch sends a JE packet or a JI packet to the second network element side port, and triggers the Join timer of the second network element side port to start timing, and after the Join timer expires, the utilization is in use.
  • the second network element side port of the JE state resends the JE message, or retransmits the JE message and the JI message by using the second network element side port configured to be in the JI state.
  • each switch receives a JE packet or a JI packet on its first network element side port. Clear the Leave timer of the first NE-side port and restart the timer. If the JE packet or the JI packet is not received again after the Leave timer expires, the link may be invalid. And in order to prevent the configured attribute from being undoable due to the link failure, the first network element side port is configured back to the E state.
  • each switch sends a JI packet on its first network element side port, triggers the Join timer of the first network element side port to start timing, and uses the JI status after the Join timer expires.
  • a network element side port resends the JI text.
  • each switch receives the JI packet on its second network element side port, clears the Leave timer of the remote port of the second network, and restarts the timer. If the Leave timer expires, the switch still does not. If the JI packet is received again, it indicates that the link may be invalid, and the second NE side port is configured to be returned to the E state in order to prevent the configured attribute from being revoked due to the link failure.
  • each port sends a corresponding packet for the attributes that need to be transmitted and needs to be revoked.
  • the specific implementation can be:
  • a corresponding to-be-propagated attribute list is set for each of the first network element side port and the second network element side port of each switch, and is used to record all attributes that need to be transmitted on the corresponding port, and attributes that need to be revoked;
  • a corresponding Hold (Hold) timer is set for each of the first network element side port and the second network element side port of each switch, and is used to start timing when the corresponding port status changes, and triggers the switch to utilize when the time arrives.
  • the JI message, and/or the JE message, and/or the LE message, and/or the LI message corresponding to each attribute recorded in the attribute to be propagated attribute are sent.
  • the switch system that can propagate attributes in this embodiment is described in detail based on the foregoing status and various types of packets.
  • the switchable system of the switchable attribute is connected between the first network element and the second network element, and includes a plurality of switches, for each attribute:
  • each switch configures the second network element side port in the E state as the JE state, and uses the second network in the JE state.
  • the source port sends a JE packet to the second NE to notify the peer to register the attribute and the local end does not register the attribute.
  • each switch forwards the JI packet to the first NE by using the first NE-side port configured as the JI state. , is used to notify the peer to register the attribute, and indicates that the attribute has been registered by the local end.
  • all switches include an edge switch adjacent to the first network element, and attribute propagation is usually initiated by the edge switch. Then, for the switch adjacent to the first network element, the switch may further be based on the first
  • the JI packet sent by the NE to the second NE is configured as the JI state on the first NE side port in the E state, or the first NE side port is configured as the S state according to the manual configuration.
  • the switch that is adjacent to the first network element may further be configured to be in the E state according to the JE packet sent by the second network element side port of the neighboring switch on the first network element side to the second network element.
  • the first NE side port is configured as the JI state.
  • the switch must be adjacent to the second network element, and the switch adjacent to the second network element may further forward the second network element to the first network element.
  • the JI packet is configured to be in the JI state of the second network element side port in the JE state; and for the switch not adjacent to the second network element, it may further be based on the adjacent switch on the second network element side.
  • the second network element side port in the JE state is configured as the JI state.
  • the switch can still send the LI 4 message to the second network element in the direction of the second network element side of the JI. Attribute, and indicates that the attribute is not sold at the local end;
  • each switch further sends an LE message to the first network element direction by using the first network element side port that has been configured to return to the E state after the second network element side port is configured to return to the E state.
  • the peer is notified to revoke the attribute and indicates that the local end has revoked the attribute.
  • the first network element side port may be configured according to the LE message sent by the first network element to the second network element direction or manually configured.
  • the switch is configured to return to the E state.
  • the switch that is not adjacent to the first network element it can send the LI>3 ⁇ 4 direction to the second network element side according to the second network element side port of the adjacent switch on the first network element side.
  • the configuration of the first network element side port back to the E state;
  • the second network element side port can be configured back according to the LE "3 ⁇ 4 text" that is forwarded in the direction of the first network element by the second network element.
  • the switch may send the LE message to the first network element side according to the first network element side port of the neighboring switch on the second network element side. Configure the second NE side port to return to the E state.
  • the registered port of each switch can periodically send the corresponding registration message, in this case:
  • the first network element side port of each switch is further configured with a Join timer and a Leave timer, and the second network element side port of each switch is further configured with another Join timer and another Leave timer, where
  • the Join timer of the first NE side port is used for the second network of the switch to which it belongs.
  • the time-based port starts to count the time when the JE packet or the JI packet is sent.
  • the switch belongs to the switch that uses the second network element side port to resend the JE packet or the JI packet.
  • the Leave timer is used to clear the JE packet or the JI packet every time the first NE side port of the switch to which it belongs, and restart the timing. After the timing arrives, the switch that belongs to it will be triggered first. Configure the NE side port to return to the E state.
  • the Join timer of the second NE side port is used to start timing when the first NE side port of the switch belongs to the switch. After the timer arrives, the switch belongs to the switch that uses the first NE side port to resend the JI. Text
  • the Leave timer of the second NE side port is used to clear the JI message when the second NE side port of the switch to which it belongs, and restarts the timing. After the timing arrives, the switch belongs to the second network element.
  • the side port configuration is back to the E state.
  • the first network element side port of each switch is further configured with a first to-be-propagated attribute list, which is used to record all attributes that need to be propagated on the first network element side port, and attributes that need to be revoked;
  • the first network element side port of each switch is further configured with a Hold timer, which is used to start timing when the state of the port on the first network element side changes, and when the time arrives, the triggering switch uses the first network element side port to send the first The JI message, and/or the JE message, and/or the LE message, and/or the LI message corresponding to each attribute recorded in the attribute list to be propagated; the second network element side port of each switch is further set.
  • There is a second to-be-propagated attribute list which is used to record all attributes that need to be propagated on the second network element side port, and attributes that need to be revoked;
  • the second NE side port of each switch is further configured with another Hold timing.
  • the device is configured to start timing when the port status of the second network element is changed, and when the time arrives, the triggering switch uses the second network element side port to send the JI message corresponding to each attribute recorded in the second to-be-propagated attribute list. , and / or JE messages, and / or LE messages, and / or LI messages.
  • the above is a detailed description of the attribute propagation method and the switch system in this embodiment.
  • the attribute propagation method and the switch system can implement the propagation of common attributes, for example, indicating that the port should be added to the VSAN attribute of the VSAN, or that the port should be added to the zone. Zone property.
  • the switch fabric internal link service (Switch Fabric Internal Link Service) in the existing FC network can be used to make the attribute propagation method and the switch system more easily implement the attribute propagation and the FC network is more compatible.
  • the SW_ILS protocol protocol is improved, and the improved SW_ILS protocol packet is used to implement the above JI message, JE message, LI message, and LE message.
  • this embodiment does not improve the file header.
  • SW_ILS protocol command in the 0 ⁇ 3 byte of the message payload field is set to represent a value used for attribute propagation, for example, 0x70000000;
  • the attribute type (AttriType), for example, 01 can indicate the VSAN attribute to be added to the VSAN, and 02 can indicate the Zone attribute of the joined zone;
  • each type of attribute item such as VSAN of the VSAN attribute type Attribute items 1 ⁇ 5.
  • Each attribute item further includes an event type (Event) and an attribute value (Attrib Value) for the attribute item, and the value of the Event is used to represent a JI message, or a JE message, or a LI message, or an LE message.
  • Attrib Value indicates attribute specific information. For example, the AttribValue in the VSAN attribute item can be added to VSAN1, or need to join VSAN2, or need to join VSAN5.

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Description

基于光纤通道网络的属性传播方法和交换机系统
技术领域
本发明涉及交换机的属性配置技术, 特别涉及一种基于光纤通道
( Fibre Channel, FC ) 网络的属性传播方法、 以及可实现属性传播的一 种基于 FC网络的交换机系统。 发明背景
现有基于 FC网络的交换机系统中, 为了实现不同网元之间的通信, 这些网元之间的所有交换机各端口均需要由网络管理员通过手动方式 ——配置对应的属性。 然而, 一旦网络拓朴发生变化, 则需要管理员再 次通过手工方式对相应交换机端口的属性进行适应性调整。
例如, 对于将 FC网络划分为不同虚拟存储网络(VSAN )的情况, 只 有属于同一 VSAN 的服务器和物理磁盘之间才能够进行通信, 而为了实 现属于该 VSAN 的服务器和物理磁盘之间的通信, 需要网络管理员手动 配置该服务器和该物理磁盘之间所有交换机位于服务器侧的端口、 以及 位于物理磁盘侧的端口的属性、 即均加入至对应的 VSAN。 如果该服务器 和该物理磁盘之间存在 N ( N为大于等于 1的正整数)个互联的交换机, 则需要网络管理员手动配置 2N 次。 当然, 可配置的属性还包括各端口 所加入的不同域(Zone )等等, 其情况与 VSAN相类似, 本文不再—— 列举。
可见, 现有属性配置只能够依靠管理员的手动操作, 其仅仅属于一 种静态配置方式, 从而使得端口属性配置效率低、 而且手动操作易导致 配置出错的情况发生。 发明内容
有鉴于此, 本发明提供了一种基于 FC 网络的属性传播方法、 以及 一种基于 FC网络的交换机系统, 能够提高端口属性配置效率。
本发明提供的一种基于 FC 网络的属性传播方法, 应用于第一网元 与第二网元之间互联的交换机, 针对每种属性设置所有交换机所有端口 的初始状态为未注册该属性且无需传播该属性的空状态, 且该属性传播 方法针对每一种属性包括如下步骤:
交换机在其处于所述空状态的第一网元侧端口被配置为表示已注册 该属性、 并需要传播该属性的第一状态后, 将其处于所述空状态的第二 网元侧端口配置为表示未注册该属性、 但需要传播该属性的第二状态, 并利用该第二网元侧端口向第二网元方向发送用于通知对端注册该属 性、 并表示本端未注册该属性的第一注册>¾文;
交换机在其处于所述第二状态的第二网元侧端口被配置为所述第一 状态后, 利用其已配置为所述第一状态的第一网元侧端口向第一网元方 向发送用于通知对端注册该属性、 并表示本端已注册该属性的第二注册 报文。
当交换机与第一网元相邻时, 该交换机依据第一网元向第二网元方 向发送的所述第二注册报文、 或手动配置, 将其处于所述空状态的第一 网元侧端口配置为所述第一状态;
当交换机未与第一网元相邻时, 该交换机依据其第一网元侧的相邻 交换机向第二网元方向发送的所述第一注册报文, 将其处于所述空状态 的第一网元侧端口配置为所述第一状态;
当交换机与第二网元相邻时, 该交换机依据第二网元向第一网元方 向反向传递的所述第二注册报文, 将其处于所述第二状态的第二网元侧 端口配置为所述第一状态; 当交换机未与第二网元相邻时, 该交换机依据其第二网元侧的相邻 交换机向第一网元方向发送的所述第二注册报文, 将其处于所述第二状 态的第二网元侧端口配置为所述第一状态。
该属性传播方法针对每一种属性包括如下步骤:
交换机在其第一网元侧端口被配置回所述空状态后, 利用其第二网 元侧端口向第二网元方向发送用于通知对端4款销该属性、 并表示本端未 撤销该属性的第一撤销报文;
交换机在其第二网元侧端口被配置回所述空状态后, 利用其已被配 置回所述空状态的第一网元侧端口向第一网元方向发送用于通知对端 撤销该属性、 并表示本端已撤销该属性的第二撤销报文。
当交换机与第一网元相邻时, 该交换机依据第一网元向第二网元方 向发送的所述第二撤销报文、 或手动配置, 将其第一网元侧端口配置回 所述空状态;
当交换机未与第一网元相邻时, 该交换机依据其第一网元侧的相邻 交换机向第二网元方向发送的所述第一撤销报文, 将其第一网元侧端口 配置回所述空状态;
当交换机与第二网元相邻时, 该交换机依据第二网元向第一网元方 向反向传递的所述第二撤销报文, 将其第二网元侧端口配置回所述空状 态;
当交换机未与第二网元相邻时, 该交换机依据其第二网元侧的相邻 交换机向第一网元方向发送的所述第二撤销报文, 将其第二网元侧端口 配置回所述空状态。
每台交换机的第一网元侧端口设置有第一注册定时器和第一^销定 时器, 每台交换机的第二网元侧端口设置有第二注册定时器和第二^销 定时器; 每台交换机在其第二网元侧端口每次发送所述第一注册报文或所述 第二注册报文时触发第二注册定时器开始计时, 并在第二注册定时器计 时到达后, 利用第二网元侧端口重新发送所述第一注册报文或所述第二 注册报文; 每台交换机在其第一网元侧端口每次收到所述第一注册报文 或所述第二注册报文时将第一撤销定时器清零后重新开始计时, 并在第 一 销定时器计时到达后, 将其第一网元侧端口配置回所述空状态; 每台交换机在其第一网元侧端口每次发送第二注册报文时触发第一 注册定时器开始计时, 并在第一注册定时器计时到达后, 利用第一网元 侧端口重新发送所述第二注册报文; 每台交换机在其第二网元侧端口每 次收到所述第二注册报文时将第二撤销定时器清零后重新开始计时, 并 在第二 ^销定时器计时到达后, 将其第二网元侧端口配置回所述空状 态。
每台交换机的第一网元侧端口设置有第一待传播属性列表, 用于记 录第一网元侧端口需要传播的所有属性、 以及需要撤销的属性; 还为每 台交换机的第一网元侧端口设置有第一保持定时器, 用于在第一网元侧 端口状态变化时开始计时, 并在计时到达时, 触发交换机利用第一网元 侧端口发送第一待传播属性列表中所记录的各属性对应的第二注册报 文、 和 /或第二 ·ί敦销报文;
每台交换机的第二网元侧端口设置有第二待传播属性列表, 用于记 录第二网元侧端口需要传播的所有属性、 以及需要撤销的属性; 还为每 台交换机的第二网元侧端口设置有第二保持定时器, 用于在第二网元侧 端口状态变化时开始计时, 并在计时到达时, 触发交换机利用第二网元 侧端口发送第二待传播属性列表中所记录的各属性对应的第一注册报 文、 和 /或第二注册报文、 和 /或第一 ·ί敦销报文、 和 /或第二 ·ί敦销报文。
第一注册报文、 第二注册报文、 第一撤销报文、 第二撤销报文均为 交换机光纤交互连接服务 SW_ILS协议报文,
所述 SW_ILS协议报文的报文载荷字段第 0~3字节中的 SW_ILS协 议命令被设置为表示用于属性传播的值, 且从报文载荷字段第 4字节开 始, 携带有属性类型、 每种类型属性所占用的字节数、 每种类型属性的 数量、 以及每种类型的属性项;
其中,每个属性项中又包含该属性项针对的事件类型、以及属性值, 事件类型的值用于标识第一注册报文、 或第二注册报文、 或第一撤销报 文、 或第二 4敦销报文。
所述属性为端口加入的虚拟存储网络 VSAN、 或域 ZONE。。
本发明提供的一种基于 FC 网络的交换机系统, 该交换机系统连接 于第一网元与第二网元之间、 并包括若干交换机, 针对每一种属性: 每台交换机在其处于所述空状态的第一网元侧端口被配置为表示已 注册该属性、 并需要传播该属性的第一状态后, 将其处于所述空状态的 第二网元侧端口配置为表示未注册该属性、 但需要传播该属性的第二状 态, 并利用该第二网元侧端口向第二网元方向发送用于通知对端注册该 属性、 并表示本端未注册该属性的第一注册4艮文;
每台交换机在其处于所述第二状态的第二网元侧端口被配置为所述 第一状态后, 利用其已配置为所述第一状态的第一网元侧端口向第一网 元方向发送用于通知对端注册该属性、 并表示本端已注册该属性的第二 注册报文。
与第一网元相邻的交换机, 进一步依据第一网元向第二网元方向发 送的所述第二注册报文、 或手动配置, 将其处于所述空状态的第一网元 侧端口配置为所述第一状态;
未与第一网元相邻的交换机, 进一步依据其第一网元侧的相邻交换 机向第二网元方向发送的所述第一注册报文, 将其处于所述空状态的第 一网元侧端口配置为所述第一状态;
与第二网元相邻的交换机, 进一步依据第二网元向第一网元方向反 向传递的所述第二注册报文, 将其处于所述第二状态的第二网元侧端口 配置为所述第一状态;
未与第二网元相邻的交换机, 进一步依据其第二网元侧的相邻交换 机向第一网元方向发送的所述第二注册报文, 将其处于所述第二状态的 第二网元侧端口配置为所述第一状态。
每台交换机进一步在其第一网元侧端口被配置回所述空状态后, 利 用其第二网元侧端口向第二网元方向发送用于通知对端4款销该属性、 并 表示本端未撤销该属性的第一撤销报文;
每台交换机进一步在其第二网元侧端口被配置回所述空状态后, 利 用其已被配置回所述空状态的第一网元侧端口向第一网元方向发送用 于通知对端撤销该属性、 并表示本端已撤销该属性的第二撤销报文。
与第一网元相邻的交换机, 该交换机依据第一网元向第二网元方向 发送的所述第二撤销报文、 或手动配置, 将其第一网元侧端口配置回所 述空状态;
未与第一网元相邻的交换机, 该交换机依据其第一网元侧的相邻交 换机向第二网元方向发送的所述第一撤销报文, 将其第一网元侧端口配 置回所述空状态;
与第二网元相邻的交换机, 该交换机依据第二网元向第一网元方向 反向传递的所述第二撤销报文, 将其第二网元侧端口配置回所述空状 态;
未与第二网元相邻的交换机, 该交换机依据其第二网元侧的相邻交 换机向第一网元方向发送的所述第二撤销报文, 将其第二网元侧端口配 置回所述空状态。 每台交换机的第一网元侧端口进一步设置有第一注册定时器和第一
^销定时器, 每台交换机的第二网元侧端口进一步设置有第二注册定时 器和第二 销定时器, 其中,
第一注册定时器, 用于在其所属交换机的第二网元侧端口每次发送 所述第一注册报文或所述第二注册报文时开始计时, 在计时到达后触发 其所属交换机利用第二网元侧端口重新发送所述第一注册报文或所述 第二注册>¾文;
第一^销定时器, 用于在其所属交换机的第一网元侧端口每次收到 所述第一注册 文或所述第二注册 文时清零、 并重新开始计时, 在计 时到达后触发其所属交换机将第一网元侧端口配置回所述空状态; 第二注册定时器, 用于在其所属交换机的第一网元侧端口每次发送 第二注册报文时开始计时, 在计时到达后触发其所属交换机利用第一网 元侧端口重新发送所述第二注册>¾文;
第二^销定时器, 用于在其所属交换机的第二网元侧端口每次收到 所述第一注册报文时清零、 并重新开始计时, 在计时到达后触发其所属 交换机将第二网元侧端口配置回所述空状态。
每台交换机的第一网元侧端口进一步设置有第一待传播属性列表, 用于记录第一网元侧端口需要传播的所有属性、 以及需要^销的属性; 每台交换机的第一网元侧端口还进一步设置有第一保持定时器, 用 于在第一网元侧端口状态变化时开始计时, 并在计时到达时, 触发交换 机利用第一网元侧端口发送第一待传播属性列表中所记录的各属性对 应的第二注册报文、 和 /或第二 ·ί敦销报文;
每台交换机的第二网元侧端口进一步设置有第二待传播属性列表, 用于记录第二网元侧端口需要传播的所有属性、 以及需要^销的属性; 每台交换机的第二网元侧端口还进一步设置有第二保持定时器, 用 于在第二网元侧端口状态变化时开始计时, 并在计时到达时, 触发交换 机利用第二网元侧端口发送第二待传播属性列表中所记录的各属性对 应的第一注册报文、 和 /或第二注册报文、 和 /或第一 ·ί敦销报文、 和 /或第 二撤销报文。
第一注册报文、 第二注册报文、 第一撤销报文、 第二撤销报文均为 交换机光纤交互连接服务 SW_ILS协议报文,
所述 SW_ILS协议报文的报文载荷字段第 0~3字节中的 SW_ILS协 议命令被设置为表示用于属性传播的值, 且从报文载荷字段第 4字节开 始, 携带有属性类型、 每种类型属性所占用的字节数、 每种类型属性的 数量、 以及每种类型的属性项;
其中,每个属性项中又包含该属性项针对的事件类型、以及属性值, 事件类型的值用于标识第一注册报文、 或第二注册报文、 或第一撤销报 文、 或第二 4敦销报文。
所述属性为端口加入的虚拟存储网络 VSAN、 或域 ZONE。。
由上述技术方案可见, 本发明可由各交换机在其第一网元侧端口注 册属性后, 自动利用其第二网元侧端口传播该属性, 以使下一台相邻交 换机也能够将其第一网元侧端口注册该属性、 并继续自动利用其第二网 元侧端口传播该属性, 直至传播至第二网元为止, 从而使第一网元与第 二网元之间所有交换机的第一网元侧端口均自动注册该属性; 尔后, 各 交换机还可在其第二网元侧端口注册该属性后, 自动利用其第一网元侧 端口反向传播该属性, 以使下一台相邻交换机也能够将第二网元侧端口 注册、 并继续自动利用其第一网元侧端口反向传播该属性, 直至传播回 第一网元为止, 从而使第一网元与第二网元之间所有交换机的第二网元 侧端口也均自动注册该属性。 这样, 无需对每一端口进行手动配置, 即 可使第一网元与第二网元之间所有交换机的第一网元侧端口和第二网 元侧端口均自动注册了该属性, 从而提高了端口属性的配置效率、 且避 免配置出错, 而且, 利用本发明可实现任意属性的传播, 从而使得本发 明具有较高的通用性。
可选地, 属性的传播通常由第一网元相邻的边缘交换机开始, 该边 缘交换机可以依据第一网元发送的注册报文为其第一网元侧端口注册 属性、 也可以手动注册属性, 但即便是边缘交换机通过手动方式注册属 性, 未与第一网元相邻的其他交换机也能够自动实现第一网元侧端口的 属性注册; 而与第二网元相邻的另一侧边缘交换机则可直接依据第二网 元回应的注册 4艮文实现其第二网元侧端口的属性注册。
此外, 对于端口属性的^销, 本发明也能够由各交换机之间的交互 自动实现, 从而进一步提高端口属性配置效率。
进一步地, 考虑到需要保持所有交换机的端口已注册属性, 每台交 换机的已注册端口可定时重复发送相应的注册报文; 如果任一台交换机 的任一侧端口在一定时间内未收到重复发送的注册 "¾文, 则表示链路可 能失效、 并4款销自身的该侧端口已注册的属性, 以避免由于链路失效而 无法 4敦销端口属性的情况发生, 从而能够提高端口属性配置的可靠性。
再进一步地, 考虑到同一台交换机的端口可能配置有多种属性、 并 需要传播或^销, 那么为了减少交换机间针对每一种属性分别发送相应 报文而产生的链路震荡, 本发明可以为每台交换机的每个端口设置一列 表, 并定时地以列表为单位统一发送报文、 减少交换机之间的报文传递 次数。
优选地, 本发明可以通过对现有 FC 网络中报文格式的改进来实现 各类注册报文和各类撤销报文, 从而使得本发明的方案易于实现、 易于 被 FC网络所兼容。 附图简要说明
图 la 图 lg为本发明实施例中一种属性传播过程的示意图; 图 2a~ 2g为本发明实施例中另一种属性传播过程的示意图; 图 3a~ 3g为本发明实施例中又一种属性传播过程的示意图; 图 4为本发明实施例中属性传播方法的示例性流程图。 实施本发明的方式
为使本发明的目的、技术方案及优点更加清楚明白, 以下参照附 图并举实施例, 对本发明进一步详细说明。
本发明实施例中,为了任意类型的第一网元与第二网元之间能够 通过互联的若干交换机正常通信, 在所有这些交换机中, 可以先令与 第一网元相邻的边缘交换机的第一网元侧端口注册对应的属性,然后 再由该边缘交换机第二网元侧端口自动向第二网元方向传播属性,以 使该边缘交换机与第二网元之间的其他所有交换机均能够自动将自 身的第一网元侧端口注册对应的属性、并自动利用自身第二网元侧端 口继续向第二网元方向传播该属性。 这样, 第一网元与第二网元之间 的所有交换机的第一网元侧端口均可注册对应的属性。
此后,再将与第二网元相邻的另一侧边缘交换机的第二网元侧端 口注册上述对应的属性,然后再由该另一侧边缘交换机的第一网元侧 端口自动向第一网元方向反向传播该属性,以使该另一侧边缘交换机 与第一网元之间的其他所有交换机均能够自动将自身的第二网元侧 端口注册该对应的属性、并自动利用自身已注册该属性的第一网元侧 端口继续向第一网元方向反向传播该属性。 这样, 由于第一网元与第 二网元之间的所有交换机的第一网元侧端口均已注册对应的属性, 因 而经反向传播后,第一网元与第二网元之间的所有交换机的第二网元 侧端口也均能够注册对应的属性,从而实现第一网元与第二网元之间 通过所有这些交换机正常通信。
其中, 属性的传播通常由第一网元相邻的边缘交换机开始, 该边 缘交换机可以依据第一网元传播的属性为其第一网元侧端口注册属 性、 也可以手动注册属性(如何手动注册属性可以按照现有任一种方 式来实现), 但需要说明的是, 即便是边缘交换机通过手动方式注册 属性,未与第一网元相邻的其他交换机也能够可依据传播而来的属性 自动实现第一网元侧端口的属性注册; 而与第二网元相邻的另一侧边 缘交换机则可直接依据第二网元反向传播的属性实现其第二网元侧 端口的属性注册。
当然, 本实施例也可以按照使端口注册属性的相同方式, 由各交 换机之间传播撤销某属性的通知,从而还可进一步实现属性的自动撤 销。 具体来说, 为了标识端口是否已注册任一种属性、 以及是否需要 传播该属性, 本实施例为端口设定了如下几种状态:
空 (Empty, E ) 状态, 表示端口未注册该属性、 且无需传播该 属性;
静态 (Static, S )状态, 表示端口已手动注册该属性、 且需要传 播该属性;
加入非空 (Joinln, JI ) 状态, 表示端口已自动注册该属性、 且 需要传播该属性;
加入空 (JoinEmpty, JE ) 状态, 表示端口未注册该属性、 但需 要传播该属性。
其中, S状态和 JI状态只是为了区分端口注册对应属性所依据的 不同方式而已, 实质上二者均能够表示端口已注册该属性、 且需要传 播该属性; 且各状态所表示的 "需要" 传播该属性、 "不需要" 传播 该属性, 并不是指处于该状态的端口自身是否需要传播, 而是本机另 一侧的其他端口是否需要传播。
而为了实现任一种属性在端口间的传播(包括注册属性和撤销属 性) , 本实施例设置了如下几种报文:
JI才艮文, 通知对端注册该属性、 并表示本端未注册该属性;
JE "¾文, 通知对端注册该属性、 并表示本端未注册该属性; 撤销非空 (Leaveln, LI ) 报文, 通知对端撤销该属性、 并表示 本端未 销该属性;
4款销空 (LeaveEmpty, LE ) 报文, 通知对端 4敦销该属性、 并表 示本端已4款销该属性。
假设有 3个交换机 Sl、 S2、 S3 , 其中, SI是与第一网元相邻的 边缘交换机、 S3是与第二网元相邻的另一边缘交换机:
参见图 la, SI第一网元侧端口 Pl、 SI第二网元侧端口 P2、 S2 第一网元侧端口 P3、 S2第二网元侧端口 P4、 S3第一网元侧端口 P5、 S3第二网元侧端口 P6的状态均为 E状态;
参见图 lb, SI 的第一网元侧端口 P1被手动配置为 S状态, 则 该端口 P1向第一网元方向发送 JI报文、 第一网元会将其接收到该 JI 报文的端口配置为 JI状态, 且第二网元侧端口 P2会自动配置为 JE 状态、 并向第二网元方向发送 JE >¾文;
参见图 lc, S2的第一网元侧端口 P3依据接收到的 JE >¾文配置 为 JI状态, 且第二网元侧端口 P4会自动配置为 JE状态、 并继续向 第二网元方向发送 JE报文;
参见图 Id, S3的第一网元侧端口 P5依据收到的 1 才艮文配置为 JI状态, 且第二网元侧端口 P6会自动配置为 JE状态、 并继续向第二 网元方向发送 JE报文,此后第二网元会将其接收到该 JE报文的端口 配置为 JI状态、 并向 S3反向传递 JI 4艮文;
参见图 le, S3 的第二网元侧端口 P6依据第二网元反向传递的 JI报文配置为 JI状态,且 JI状态的第一网元侧端口 P5会自动向第一 网元方向发送 JI 文;
参见图 If, S2的第二网元侧端口 P4依据 S3反向传递的 JI 4艮文 配置为 JI状态,且 JI状态的第一网元侧端口 P3会自动向第一网元方 向发送 JI报文;
参见图 lg, SI的第二网元侧端口 P2依据 S2反向传递的 JI报文 配置为 JI状态, 由于 S状态的第一网元侧端口 P1 已传播过该属性, 故不再进行任何处理。
在经如图 la~ lg的处理之后:
参见图 2a, SI 的第一网元侧端口 P1被手动配置回 E状态, 则 该端口 P1 向第一网元方向发送 LE报文、 第一网元会将其接收到该 LE 文的端口配置回 E状态, 且处于 JI状态的第二网元侧端口 P2 会自动向第二网元方向发送 LI报文;
参见图 2b, S2的第一网元侧端口 P3依据接收到的 LE报文配置 回 E状态, 且处于 JI状态的第二网元侧端口 P4会自动向第二网元方 向发送 LI报文;
参见图 2c, S3的第一网元侧端口 P5依据接收到的 LE >¾文配置 回 E状态, 且处于 JI状态的第二网元侧端口 P6会自动向第二网元方 向发送 LI报文、 第二网元会将其接收到该 LE报文的端口配置回 E 状态;
参见图 2d, S3 的第二网元侧端口 P6依据第二网元反向传递的 LE ^艮文配置回 E状态, 且 E状态的第一网元侧端口 P5会自动向第 一网元方向发送 LE ^艮文;
参见图 2e, S2的第二网元侧端口 P4依据 S3反向传递的 LE报 文配置回 E状态, 且 E状态的第一网元侧端口 P3会自动向第一网元 方向发送 LE ^艮文;
参见图 2f, SI的第二网元侧端口 P2依据 S2反向传递的 LE报 文配置回 E状态, 且 E状态的第一网元侧端口 P1会自动向第一网元 方向发送 LE报文, 第一网元将其接收该 LE报文的端口配置回 E状 态。
仍假设有 3个交换机 Sl、 S2、 S3 , 其中, SI是与第一网元相邻 的边缘交换机、 S3是与第二网元相邻的另一边缘交换机:
参见图 3a, SI第一网元侧端口 Pl、 SI第二网元侧端口 P2、 S2 第一网元侧端口 P3、 S2第二网元侧端口 P4、 S3第一网元侧端口 P5、 S3第二网元侧端口 P6的状态均为 E状态;
参见图 3b, SI的第一网元侧端口 P1依据第一网元发送的 JI才艮 文配置为 JI状态, 该端口 P1向第一网元方向发送 JI ^艮文、 第一网元 不做处理, 且第二网元侧端口 P2会自动配置为 JE状态、 并向第二网 元方向发送 JE ^艮文;
参见图 3( ~图 3f, 后续处理过程与图 lc 图 If相类似;
参见图 3g, SI的第二网元侧端口 P2依据 S2反向传递的 JI报文 配置为 JI状态,且 JI状态的第一网元侧端口 P1会自动向第一网元方 向发送 JI 4艮文,由于第一网元接收该 JI ^艮文的端口已配置为 JI状态, 故不再进行任何处理。
在经如图 3a~ 3g的处理之后也可按照类似于图 2a~2f的方式 ^ 销属性, 只是属性的撤销可以由第一网元发送 LE报文来触发。 实际应用中, 如何触发、 何时触发第一网元和第二网元利用 JI 报文配置边缘交换机对应侧端口的属性,本领域技术人员可按照任意 方式实现, 在此不再赘述。 下面, 基于上述状态和各类报文, 对本实施例中的属性传播方法 进行详细说明。
图 4为本发明实施例中属性传播方法的示例性流程图。该属性传 播方法针对每种属性,设置第一网元与第二网元之间所有交换机的所 有端口初始状态为 E状态, 且如图 4所示,每台交换机针对每一种属 性均执行如下步骤:
步骤 401 , 交换机在其处于 E状态的第一网元侧端口被配置为 JI 状态或 S状态后,将其处于 E状态的第二网元侧端口配置为 JE状态, 并利用该第二网元侧端口向第二网元方向发送 JE报文, 用于通知对 端注册该属性、 并表示本端未注册该属性。
实际应用中, 如果由第一网元相邻的边缘交换机执行本流程, 则 由于第一网元的端口一定已注册了该属性、 并被配置为 JI 状态, 因 而本步骤之前,该交换机既可以依据第一网元向第二网元方向发送的 JI报文而将本机第一网元侧端口配置为 JI状态, 或者, 该交换机也 可以直接通过手动配置注册该属性、 并被配置为 S状态;
但如果是由未与第一网元相邻的其他交换机执行本步骤,则由于 该交换机第一网元侧的另一相邻交换机会利用第二网元侧端口向该 交换机传播属性、 且此时所有交换机的第二网元侧端口通常为 JE状 态, 因而本步骤之前, 该交换机通常依据其第一网元侧的相邻交换机 所发送的 JE报文而将本机第一网元侧端口配置为 JI状态;
此外, 一种特殊的情况是, 未与第一网元相邻、 也未与第二网元 相邻的非边缘交换机的任一侧端口由于手动配置而注册了该属性、并 配置为 S状态, 那么此时, 该非边缘交换机会同时向第一网元方向和 第二网元方向同时传播该属性, 此时, 仅能够实现第一网元方向的部 分交换机的第二网元侧端口注册该属性、第二网元方向的部分交换机 的第一网元侧端口注册该属性, 因而该特殊情况无法保证第一网元与 第二网元之间的正常通信, 本文对此情况暂不予考虑。
步骤 402, 交换机在其处于 JE状态的第二网元侧端口被配置为 JI后, 利用其已配置为 JI状态的第一网元侧端口向第一网元方向发 送 π ·¾文, 用于通知对端注册该属性、 并表示本端已注册该属性。
实际应用中, 如果由第二网元相邻的边缘交换机执行本流程, 则 由于第二网元的端口一定已注册了该属性、 并被配置为 JI 状态, 因 而本步骤之前,该交换机可以依据第二网元向第一网元方向反向传播 的 JI报文而将本机第二网元侧端口配置为 JI状态。
步骤 403 , 交换机在其第一网元侧端口被配置回 Ε状态后, 利用 其已配置为 JI的第二网元侧端口向第二网元方向发送 LI报文, 用于 通知对端 销该属性、 并表示本端未 销该属性。
实际应用中, 如果由第一网元相邻的边缘交换机执行本流程, 则 由于第一网元的端口一定已撤销了该属性、 并被配置回 Ε状态, 因而 本步骤之前, 该交换机既可以依据第一网元向第二网元方向发送的 LE 文而将本机第一网元侧端口配置回 Ε状态, 或者, 该交换机也 可以直接通过手动配置 4敦销该属性、 并被配置回 Ε状态;
但如果是由未与第一网元相邻的其他交换机执行本步骤,则由于 该交换机第一网元侧的另一相邻交换机此时的第二网元侧端口仍保 持为 JI状态、 而暂未被配置回 Ε状态, 因而本步骤之前, 该交换机 通常依据其第一网元侧的相邻交换机所发送的 LI报文而将本机第一 网元侧端口配置回 E状态。
步骤 404, 交换机在其第二网元侧端口被配置回 E状态后, 利用 其已被配置回 E状态的第一网元侧端口向第一网元方向发送 LE报 文, 用于通知对端 ^销该属性、 并表示本端已 ^销该属性。
实际应用中, 如果由第二网元相邻的边缘交换机执行本流程, 则 由于第二网元的端口一定已撤销了该属性、 并被配置回 Ε状态, 因而 本步骤之前,该交换机可以依据第二网元向第一网元方向反向传播的 LE报文而将本机第二网元侧端口配置回 Ε状态。
至此, 本流程结束。
另外需要说明的是, 在上述流程的步骤 401中, 交换机第一网元 侧端口被配置为 JI状态或 S状态, 其中, 对于 JI状态的第一网元侧 端口来说, 虽然该端口表示需要传播对应属性, 但 JI 状态并不一定 就要求立即利用 JI状态的端口发送 JI报文,而是等待如后续步骤 402 中, 交换机的第二网元侧端口接收到 JI报文后再予以传播。
此外, 考虑到需要保持所有交换机端口的已注册属性, 每台交换 机的已注册端口可定时重复发送相应的注册 文, 由此, 本实施例的 属性传播方法就需要进一步为每台交换机的第一网元侧端口设置一 个注册(Join )定时器和一个撤销(Leave )定时器, 并进一步为每台 交换机的第二网元侧端口也设置一个 Join定时器和一个 Leave定时 哭口 。
这样, 每台交换机在其第二网元侧端口发送 JE报文、 或 JI报文 时, 触发第二网元侧端口的 Join定时器开始计时, 并在该 Join定时 器计时到达后,利用处于 JE状态的第二网元侧端口重新发送 JE报文, 或利用已配置为 JI状态的第二网元侧端口重新发送 JE报文、 JI报文。 相应地,每台交换机在其第一网元侧端口收到 JE报文、或 JI报文时, 将第一网元侧端口的 Leave定时器清零、 并重新开始计时, 如果在该 Leave定时器计时到达后仍未再次收到 JE报文、 或 JI报文, 则表示 链路可能已失效,并为了防止由于链路失效而无法撤销已配置的属性 而将其第一网元侧端口配置回 E状态。
同理, 每台交换机在其第一网元侧端口发送 JI报文时, 触发第 一网元侧端口的 Join定时器开始计时, 并在该 Join定时器计时到达 后, 利用处于 JI状态的第一网元侧端口重新发送 JI 文。 相应地, 每台交换机在其第二网元侧端口收到 JI报文时, 将第二网远侧端口 的 Leave定时器清零、 并重新开始计时, 如果该 Leave定时器计时到 达后仍未再次收到 JI报文, 则表示链路可能已失效, 并为了防止由 于链路失效而无法撤销已配置的属性而将其第二网元侧端口配置回 E状态。
再进一步地, 考虑到同一台交换机的端口可能配置有多种属性、 并需要传播或撤销,那么为了减少交换机间针对每一种属性分别发送 相应报文而产生的链路震荡,本实施例令各端口定时针对需要传播和 需要撤销的属性一起发送相应报文, 具体实现可以为:
为每台交换机的第一网元侧端口和第二网元侧端口分别设置一 对应的待传播属性列表, 用于记录对应端口需要传播的所有属性、 以 及需要撤销的属性;
为每台交换机的第一网元侧端口和第二网元侧端口分别设置一 对应的保持 (Hold ) 定时器, 用于在对应端口状态变化时开始计时, 并在计时到达时,触发交换机利用对应发送对应待传播属性列表中所 记录的各属性对应的 JI报文、 和 /或 JE报文、 和 /或 LE报文、 和 /或 LI才艮文。 下面, 基于上述状态和各类报文, 对本实施例中可传播属性的交 换机系统进行详细说明。
本实施例中可传播属性的交换机系统连接于第一网元与第二网 元之间、 并包括若干交换机, 针对每一种属性:
每台交换机在其处于 E状态的第一网元侧端口被配置为 JI状态 或 S状态后, 将其处于 E状态的第二网元侧端口配置为 JE状态, 并 利用 JE状态的第二网元侧端口向第二网元方向发送 JE报文,用于通 知对端注册该属性、 并表示本端未注册该属性;
此后, 每台交换机在其处于 JE状态的第二网元侧端口被配置为 JI状态后, 利用其已配置为 JI状态的第一网元侧端口向第一网元方 向反向传播 JI报文, 用于通知对端注册该属性、 并表示本端已注册 该属性。
实际应用中, 所有交换机包括与第一网元相邻的边缘交换机, 属 性传播通常是由该边缘交换机发起的, 那么, 对于与第一网元相邻的 来说交换机, 其可以进一步依据第一网元向第二网元方向发送的 JI 报文将其处于 E状态的第一网元侧端口配置为 JI状态, 或依据手动 配置将其第一网元侧端口配置为 S状态;而对于未与第一网元相邻的 交换机来说,其可以进一步依据其第一网元侧的相邻交换机第二网元 侧端口向第二网元方向发送的 JE报文, 将其处于 E状态的第一网元 侧端口配置为 JI状态。
当然, 所有交换机中一定还有一个交换机与第二网元相邻, 那么 对于与第二网元相邻的交换机来说,其可以进一步依据第二网元向第 一网元方向反向传播的 JI报文, 将其处于 JE状态的第二网元侧端口 配置为 JI 状态; 而对于未与第二网元相邻的交换机来说, 其可以进 一步依据其第二网元侧的相邻交换机向第一网元方向发送的 JI报文, 将其处于 JE状态的第二网元侧端口配置为 JI状态。
与本实施例中的属性传播方法同理,为了实现对端口已注册属性 的撤销:
每台交换机可以进一步在其第一网元侧端口被配置回 E状态后, 利用其仍处于 JI第二网元侧端口向第二网元方向发送 LI 4艮文, 用于 通知对端 销该属性、 并表示本端未 销该属性;
相应地,每台交换机进一步在其第二网元侧端口被配置回 E状态 后,利用其已被配置回 E状态的第一网元侧端口向第一网元方向发送 LE报文, 用于通知对端撤销该属性、 并表示本端已撤销该属性。
实际应用中, 对于前述与第一网元相邻的边缘交换机来说, 其可 以依据第一网元向第二网元方向发送的 LE报文、 或手动配置, 将其 第一网元侧端口配置回 E状态;而对于未与第一网元相邻的交换机来 说,其可以依据其第一网元侧的相邻交换机第二网元侧端口向第二网 元方向发送的 LI >¾文, 将其第一网元侧端口配置回 E状态;
同理, 对于前述与第二网元相邻的边缘交换机来说, 其可以依据 第二网元向第一网元方向反向传递的 LE "¾文, 将其第二网元侧端口 配置回 E状态; 而对于未与第二网元相邻的交换机来说, 其可以依据 其第二网元侧的相邻交换机第一网元侧端口向第一网元方向发送的 LE才艮文, 将其第二网元侧端口配置回 E状态。
此外, 考虑到需要保持所有交换机端口的已注册属性, 每台交换 机的已注册端口可定时重复发送相应的注册报文, 这种情况下:
每台交换机的第一网元侧端口进一步设置有一 Join 定时器和一 Leave 定时器, 每台交换机的第二网元侧端口也进一步设置有另一 Join定时器和另一 Leave定时器, 其中,
第一网元侧端口的 Join 定时器, 用于在其所属交换机的第二网 元侧端口每次发送 JE报文、 或 JI报文时开始计时, 在计时到达后触 发其所属交换机利用第二网元侧端口重新发送 JE报文、 或 JI报文; 第一网元侧端口的 Leave定时器,用于在其所属交换机的第一网 元侧端口每次收到 JE报文、 或 JI报文时清零、 并重新开始计时, 在 计时到达后触发其所属交换机将第一网元侧端口配置回 E状态;
第二网元侧端口的 Join 定时器, 用于在其所属交换机的第一网 元侧端口发送 JI报文时开始计时, 在计时到达后触发其所属交换机 利用第一网元侧端口重新发送 JI 文;
第二网元侧端口的 Leave定时器,用于在其所属交换机的第二网 元侧端口收到 JI 文时清零、 并重新开始计时, 在计时到达后触发 其所属交换机将第二网元侧端口配置回 E状态。
再进一步地, 考虑到同一台交换机的端口可能配置有多种属性、 并需要传播或撤销,那么为了减少交换机间针对每一种属性分别发送 相应报文而产生的链路震荡:
每台交换机的第一网元侧端口进一步设置有第一待传播属性列 表, 用于记录第一网元侧端口需要传播的所有属性、 以及需要撤销的 属性;
每台交换机的第一网元侧端口还进一步设置有一 Hold定时器, 用于在第一网元侧端口状态变化时开始计时, 并在计时到达时, 触发 交换机利用第一网元侧端口发送第一待传播属性列表中所记录的各 属性对应的 JI报文、 和 /或 JE报文、 和 /或 LE报文、 和 /或 LI报文; 每台交换机的第二网元侧端口进一步设置有第二待传播属性列 表, 用于记录第二网元侧端口需要传播的所有属性、 以及需要撤销的 属性;
每台交换机的第二网元侧端口还进一步设置有另一 Hold 定时 器, 用于在第二网元侧端口状态变化时开始计时, 并在计时到达时, 触发交换机利用第二网元侧端口发送第二待传播属性列表中所记录 的各属性对应的 JI报文、 和 /或 JE报文、 和 /或 LE报文、 和 /或 LI报 文。 以上是对本实施例中属性传播方法及交换机系统的详细说明,本 实施例中属性传播方法及交换机系统可以实现通用属性的传播,例如 表示端口应加入 VSAN的 VSAN属性、 或表示端口应加入 Zone的 Zone属性。
为了能够使得本实施例中属性传播方法及交换机系统更易于实 现属性的传播、 更易于与 FC网络兼容, 本实施例可对现有 FC网络 中的交换机光纤交互连接服务 ( Switch Fabric Internal Link Service, SW_ILS ) 协议报文进行改进, 并利用改进后的 SW_ILS协议报文来 实现上述 JI报文、 JE报文、 LI报文、 LE报文。
为了使得 FC网络仍能够识别出 SW_ILS协议的 JI报文、 JE报 文、 LI 艮文、 LE 艮文, 本实施例暂不对 ^艮文头进行改进。
但对于 SW_ILS协议的报文载荷字段, 则可以进行如下改进: 将报文载荷字段第 0~3字节中的 SW_ILS协议命令( Command ), 设置为表示用于属性传播的值, 例如 0x70000000;
从报文载荷字段第 4字节开始, 可携带:
属性类型( AttriType ) ,例如 01可以表示需加入 VSAN的 VSAN 属性、 02可以表示所加入 Zone的 Zone属性;
每种类型属性所占用的字节数(AttribLen ) ;
每种类型属性的数量 (AttribNum ) ;
以及、每种类型的属性项( Attrib ) ,例如 VSAN属性类型的 VSAN 属性项 1~5。
其中, 每个属性项中又包含该属性项针对的事件类型 (Event ) 和属性值 ( Attrib Value ) , Event的值用于表示 JI报文、 或 JE报文、 或 LI报文、或 LE报文; Attrib Value则表示属性具体信息,例如 VSAN 属性项中的 AttribValue可以为需加入 VSAN1、 或需加入 VSAN2、 或需加入 VSAN5等等。
以上所述仅为本发明的较佳实施例而已,并非用于限定本发明的 保护范围。 凡在本发明的精神和原则之内, 所作的任何修改、 等同替 换以及改进等, 均应包含在本发明的保护范围之内。

Claims

权利要求书
1、 一种基于光纤通道 FC网络的属性传播方法, 应用于第一网元与 第二网元之间互联的交换机, 其特征在于, 针对每种属性, 设置所有交 换机所有端口的初始状态为未注册该属性且无需传播该属性的空状态, 且该属性传播方法针对每一种属性包括如下步骤:
交换机在其处于所述空状态的第一网元侧端口被配置为表示已注 册该属性、 并需要传播该属性的第一状态后, 将其处于所述空状态的第 二网元侧端口配置为表示未注册该属性、 但需要传播该属性的第二状 态, 并利用该第二网元侧端口向第二网元方向发送用于通知对端注册该 属性、 并表示本端未注册该属性的第一注册4艮文;
交换机在其处于所述第二状态的第二网元侧端口被配置为所述第 一状态后, 利用其已配置为所述第一状态的第一网元侧端口向第一网元 方向发送用于通知对端注册该属性、 并表示本端已注册该属性的第二注 册报文。
2、 如权利要求 1所述的属性传播方法, 其特征在于,
当交换机与第一网元相邻时, 该交换机依据第一网元向第二网元方 向发送的所述第二注册报文、 或手动配置, 将其处于所述空状态的第一 网元侧端口配置为所述第一状态;
当交换机未与第一网元相邻时, 该交换机依据其第一网元侧的相邻 交换机向第二网元方向发送的所述第一注册报文, 将其处于所述空状态 的第一网元侧端口配置为所述第一状态;
当交换机与第二网元相邻时, 该交换机依据第二网元向第一网元方 向反向传递的所述第二注册报文, 将其处于所述第二状态的第二网元侧 端口配置为所述第一状态; 当交换机未与第二网元相邻时, 该交换机依据其第二网元侧的相邻 交换机向第一网元方向发送的所述第二注册报文, 将其处于所述第二状 态的第二网元侧端口配置为所述第一状态。
3、 如权利要求 2所述的属性传播方法, 其特征在于, 该属性传播 方法针对每一种属性包括如下步骤:
交换机在其第一网元侧端口被配置回所述空状态后, 利用其第二网 元侧端口向第二网元方向发送用于通知对端4款销该属性、 并表示本端未 撤销该属性的第一撤销报文;
交换机在其第二网元侧端口被配置回所述空状态后, 利用其已被配 置回所述空状态的第一网元侧端口向第一网元方向发送用于通知对端 撤销该属性、 并表示本端已撤销该属性的第二撤销报文。
4、 如权利要求 3所述的属性传播方法, 其特征在于,
当交换机与第一网元相邻时, 该交换机依据第一网元向第二网元方 向发送的所述第二撤销报文、 或手动配置, 将其第一网元侧端口配置回 所述空状态;
当交换机未与第一网元相邻时, 该交换机依据其第一网元侧的相邻 交换机向第二网元方向发送的所述第一撤销报文, 将其第一网元侧端口 配置回所述空状态;
当交换机与第二网元相邻时, 该交换机依据第二网元向第一网元方 向反向传递的所述第二撤销报文, 将其第二网元侧端口配置回所述空状 态;
当交换机未与第二网元相邻时, 该交换机依据其第二网元侧的相邻 交换机向第一网元方向发送的所述第二撤销报文, 将其第二网元侧端口 配置回所述空状态。
5、 如权利要求 4 所述的属性传播方法, 其特征在于, 每台交换机 的第一网元侧端口设置有第一注册定时器和第一 ^销定时器, 每台交换 机的第二网元侧端口设置有第二注册定时器和第二 ^敦销定时器;
每台交换机在其第二网元侧端口每次发送所述第一注册报文或所 述第二注册报文时触发第二注册定时器开始计时, 并在第二注册定时器 计时到达后, 利用第二网元侧端口重新发送所述第一注册报文或所述第 二注册报文; 每台交换机在其第一网元侧端口每次收到所述第一注册报 文或所述第二注册 文时将第一 ^销定时器清零后重新开始计时, 并在 第一 ^销定时器计时到达后, 将其第一网元侧端口配置回所述空状态; 每台交换机在其第一网元侧端口每次发送第二注册报文时触发第 一注册定时器开始计时, 并在第一注册定时器计时到达后, 利用第一网 元侧端口重新发送所述第二注册报文; 每台交换机在其第二网元侧端口 每次收到所述第二注册报文时将第二撤销定时器清零后重新开始计时, 并在第二 ^敦销定时器计时到达后, 将其第二网元侧端口配置回所述空状 态。
6、 如权利要求 5所述的属性传播方法, 其特征在于,
每台交换机的第一网元侧端口设置有第一待传播属性列表, 用于记 录第一网元侧端口需要传播的所有属性、 以及需要撤销的属性; 还为每 台交换机的第一网元侧端口设置有第一保持定时器, 用于在第一网元侧 端口状态变化时开始计时, 并在计时到达时, 触发交换机利用第一网元 侧端口发送第一待传播属性列表中所记录的各属性对应的第二注册报 文、 和 /或第二 4敦销报文;
每台交换机的第二网元侧端口设置有第二待传播属性列表, 用于记 录第二网元侧端口需要传播的所有属性、 以及需要撤销的属性; 还为每 台交换机的第二网元侧端口设置有第二保持定时器, 用于在第二网元侧 端口状态变化时开始计时, 并在计时到达时, 触发交换机利用第二网元 侧端口发送第二待传播属性列表中所记录的各属性对应的第一注册报 文、 和 /或第二注册报文、 和 /或第一 ·ί敦销报文、 和 /或第二 ·ί敦销报文。
7、 如权利要求 3或 4或 5所述的属性传播方法, 其特征在于, 第 一注册报文、 第二注册报文、 第一撤销报文、 第二撤销报文均为交换机 光纤交互连接服务 SW_ILS协议报文,
所述 SW_ILS协议报文的报文载荷字段第 0~3字节中的 SW_ILS协 议命令被设置为表示用于属性传播的值, 且从报文载荷字段第 4字节开 始, 携带有属性类型、 每种类型属性所占用的字节数、 每种类型属性的 数量、 以及每种类型的属性项;
其中,每个属性项中又包含该属性项针对的事件类型、以及属性值, 事件类型的值用于标识第一注册报文、 或第二注册报文、 或第一撤销报 文、 或第二 4敦销报文。
8、 如权利要求 1至 5中任一项所述的属性传播方法, 其特征在于, 所述属性为端口加入的虚拟存储网络 VSAN、 或域 ZONE。
9、 一种基于光纤通道 FC网络的交换机系统, 该交换机系统连接于 第一网元与第二网元之间、 并包括若干交换机, 其特征在于, 针对每一 种属性:
每台交换机在其处于所述空状态的第一网元侧端口被配置为表示 已注册该属性、 并需要传播该属性的第一状态后, 将其处于所述空状态 的第二网元侧端口配置为表示未注册该属性、 但需要传播该属性的第二 状态, 并利用该第二网元侧端口向第二网元方向发送用于通知对端注册 该属性、 并表示本端未注册该属性的第一注册>¾文;
每台交换机在其处于所述第二状态的第二网元侧端口被配置为所 述第一状态后, 利用其已配置为所述第一状态的第一网元侧端口向第一 网元方向发送用于通知对端注册该属性、 并表示本端已注册该属性的第 二注册报文。
10、 如权利要求 9所述的系统, 其特征在于,
与第一网元相邻的交换机, 进一步依据第一网元向第二网元方向发 送的所述第二注册报文、 或手动配置, 将其处于所述空状态的第一网元 侧端口配置为所述第一状态;
未与第一网元相邻的交换机, 进一步依据其第一网元侧的相邻交换 机向第二网元方向发送的所述第一注册报文, 将其处于所述空状态的第 一网元侧端口配置为所述第一状态;
与第二网元相邻的交换机, 进一步依据第二网元向第一网元方向反 向传递的所述第二注册报文, 将其处于所述第二状态的第二网元侧端口 配置为所述第一状态;
未与第二网元相邻的交换机, 进一步依据其第二网元侧的相邻交换 机向第一网元方向发送的所述第二注册报文, 将其处于所述第二状态的 第二网元侧端口配置为所述第一状态。
11、 如权利要求 10所述的系统, 其特征在于,
每台交换机进一步在其第一网元侧端口被配置回所述空状态后, 利 用其第二网元侧端口向第二网元方向发送用于通知对端4款销该属性、 并 表示本端未撤销该属性的第一撤销报文;
每台交换机进一步在其第二网元侧端口被配置回所述空状态后, 利 用其已被配置回所述空状态的第一网元侧端口向第一网元方向发送用 于通知对端撤销该属性、 并表示本端已撤销该属性的第二撤销报文。
12、 如权利要求 11所述的系统, 其特征在于,
与第一网元相邻的交换机, 该交换机依据第一网元向第二网元方向 发送的所述第二撤销报文、 或手动配置, 将其第一网元侧端口配置回所 述空状态; 未与第一网元相邻的交换机, 该交换机依据其第一网元侧的相邻交 换机向第二网元方向发送的所述第一撤销报文, 将其第一网元侧端口配 置回所述空状态;
与第二网元相邻的交换机, 该交换机依据第二网元向第一网元方向 反向传递的所述第二撤销报文, 将其第二网元侧端口配置回所述空状 态;
未与第二网元相邻的交换机, 该交换机依据其第二网元侧的相邻交 换机向第一网元方向发送的所述第二撤销报文, 将其第二网元侧端口配 置回所述空状态。
13、 如权利要求 12所述的系统, 其特征在于, 每台交换机的第一 网元侧端口进一步设置有第一注册定时器和第一 ^销定时器, 每台交换 机的第二网元侧端口进一步设置有第二注册定时器和第二 ^敦销定时器, 其中,
第一注册定时器, 用于在其所属交换机的第二网元侧端口每次发送 所述第一注册报文或所述第二注册报文时开始计时, 在计时到达后触发 其所属交换机利用第二网元侧端口重新发送所述第一注册报文或所述 第二注册>¾文;
第一^销定时器, 用于在其所属交换机的第一网元侧端口每次收到 所述第一注册 文或所述第二注册 文时清零、 并重新开始计时, 在计 时到达后触发其所属交换机将第一网元侧端口配置回所述空状态; 第二注册定时器, 用于在其所属交换机的第一网元侧端口每次发送 第二注册报文时开始计时, 在计时到达后触发其所属交换机利用第一网 元侧端口重新发送所述第二注册>¾文;
第二^销定时器, 用于在其所属交换机的第二网元侧端口每次收到 所述第一注册 文时清零、 并重新开始计时, 在计时到达后触发其所属 交换机将第二网元侧端口配置回所述空状态。
14、 如权利要求 13所述的系统, 其特征在于,
每台交换机的第一网元侧端口进一步设置有第一待传播属性列表, 用于记录第一网元侧端口需要传播的所有属性、 以及需要^销的属性; 每台交换机的第一网元侧端口还进一步设置有第一保持定时器, 用 于在第一网元侧端口状态变化时开始计时, 并在计时到达时, 触发交换 机利用第一网元侧端口发送第一待传播属性列表中所记录的各属性对 应的第二注册报文、 和 /或第二 ·ί敦销报文;
每台交换机的第二网元侧端口进一步设置有第二待传播属性列表, 用于记录第二网元侧端口需要传播的所有属性、 以及需要^销的属性; 每台交换机的第二网元侧端口还进一步设置有第二保持定时器, 用 于在第二网元侧端口状态变化时开始计时, 并在计时到达时, 触发交换 机利用第二网元侧端口发送第二待传播属性列表中所记录的各属性对 应的第一注册报文、 和 /或第二注册报文、 和 /或第一 4敦销报文、 和 /或第 二撤销报文。
15、 如权利要求 11或 12或 13所述的系统, 其特征在于, 第一注 册报文、 第二注册报文、 第一撤销报文、 第二撤销报文均为交换机光纤 交互连接服务 SW_ILS协议报文,
所述 SW_ILS协议报文的报文载荷字段第 0~3字节中的 SW_ILS协 议命令被设置为表示用于属性传播的值, 且从报文载荷字段第 4字节开 始, 携带有属性类型、 每种类型属性所占用的字节数、 每种类型属性的 数量、 以及每种类型的属性项;
其中,每个属性项中又包含该属性项针对的事件类型、以及属性值, 事件类型的值用于标识第一注册报文、 或第二注册报文、 或第一撤销报 文、 或第二 4敦销报文。
16、 如权利要求 9至 13 中任一项所述的系统, 其特征在于, 所述 属性为端口加入的虚拟存储网络 VSAN、 或域 ZONE。
PCT/CN2010/076616 2009-09-04 2010-09-03 基于光纤通道网络的属性传播方法和交换机系统 WO2011026439A1 (zh)

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