CN104780104B - Message forwarding method and device in Smart Link networkings - Google Patents
Message forwarding method and device in Smart Link networkings Download PDFInfo
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- CN104780104B CN104780104B CN201510185996.2A CN201510185996A CN104780104B CN 104780104 B CN104780104 B CN 104780104B CN 201510185996 A CN201510185996 A CN 201510185996A CN 104780104 B CN104780104 B CN 104780104B
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Abstract
The present invention provides a kind of message forwarding method in Smart Link networkings, the networking is annular networking, include the switching equipment and upstream switching equipment of flexible link Smart Link groups, the switching equipment of Smart Link groups is by reversely sending record cleaning message from master port, to trigger the ingress port information of upstream switching equipment periodic logging receiving record cleaning message, then special MAC list item deletion is carried out by clearing up message combination ingress port information when failure occurs.Present invention also offers a kind of apparatus for forwarding message in Smart Link networkings.The impact of deletion and the unnecessary broadcast of extra MAC address entries can be effectively reduced using the present invention.
Description
Technical field
The present invention relates to field of communication technology, more particularly to a kind of message forwarding method in Smart Link networkings and
Device.
Background technology
Smart Link groups are also referred to as flexible link group, and a Smart Link group includes two member ports, wherein one
A to be designated as master port (Master Port), another is designated as secondary port (Slave Port), different Smart
Link groups can include same port.Under normal circumstances, only a port (master port or secondary port) is in forwarding
(ACTIVE) state, another port are blocked (BLOCK), in (STANDBY) state of awaiting orders.When the end in forwarding state
Mouthful occur link failure (link failure presently mainly refer to port status switch to DOWN, Ethernet OAM link failure when) when,
Smart Link groups can be automatically by the port block, and the standby port of original obstruction is switched to forwarding state.
Fig. 1 is Smart Link networking structure schematic diagrames.The Smart Link networkings are annular networking.The end of Switch 2
Mouth B and port C constitutes a Smart Link group, and port B is master port, and port C is secondary port.The port A of Switch 2
Connect host.Other switching equipment are upstream switching equipment, and the J ports of upstream switching equipment Switch4 connect network.Double uplinks
In the case of link is all normal, master port be in forwarding state, and the link at place is active link, and secondary port is in shape of awaiting orders
State, place link are reserve links.Data are transmitted along active link, and loop is not present in network, avoid producing broadcast
Storm.
When link switching occurs for flexible link group, original forwarding-table item has been no longer desirable for new topological network,
Need the renewal to whole net progress mac address forwarding table item.Smart Link notify it by clearing up message (Flush messages)
His equipment carries out the refresh operation of mac address forwarding table item.
In order to realize quick link switching, after link down occurs in B ports, Switch2 can send a Flush message
To Switch3, continue to broadcast in protection VLAN after Switch3 processing, be sent to Switch4 and Switch1, Switch4
According to the VLAN Bitmap information in Flush messages after being received with Switch1, the deletion of protection VLAN is carried out, is directly deleted here
Except all MAC address entries in the VLAN, this will necessarily influence some and need not carry out other turns in the same VLAN of MAC deletions
Other messages for also having VLAN2 on hair flow, such as Switch4 are turned on the port in addition to H ports, I ports, J ports
Hair and intercommunication, directly delete all MAC address entries under VLAN2 will result in all data flows of VLAN2 in a period of time all into
Row broadcast.
The content of the invention
Object of the present invention is to provide a kind of message forwarding method and device in Smart Link networkings, effectively
Reduce the impact of deletion and the unnecessary broadcast of extra MAC address entries.
An embodiment of the present invention provides a kind of message forwarding method in Smart Link networkings, which is circular groups
Net, including the switching equipment of flexible link Smart Link groups and upstream switching equipment, this method include：In Smart Link groups
After unlatching, upstream switching equipment receives the record cleaning sent from the master port fixed time broadcast of the switching equipment of Smart Link groups
Message；The record cleaning message carries virtual LAN bitmap VLAN Bitmap fields, VLAN Bitmap fields filling
There are the protection VLAN ID of Smart Link groups where the master port in forwarding state before link switching；Upstream switching equipment obtains
The protection VLAN ID in record cleaning message VLAN Bitmap fields are taken, it is clear to preserve the protection VLAN ID and receiving record
Manage the correspondence between message inbound port；In the active link failure of the switching equipment of Smart Link groups, upstream exchanges
Equipment receives the cleaning message of the secondary port broadcast transmission from the switching equipment of Smart Link groups；The cleaning message carries
VLAN Bitmap fields, the VLAN Bitmap fields are filled with before link switching the master port place in forwarding state
The protection VLAN ID of Smart Link groups；Upstream switching equipment obtains the protection VLAN in cleaning message VLAN Bitmap fields
ID, according to the correspondence, deletes the MAC address entries that inbound port is corresponded in the protection VLAN.
The embodiment of the present invention additionally provides a kind of apparatus for forwarding message in Smart Link networkings, which is annular
Networking, includes the switching equipment and upstream switching equipment of flexible link Smart Link groups, which is applied to upstream exchange and sets
Standby, which includes：Receiving unit, after the unlatching of Smart Link groups, receives the master of the switching equipment from Smart Link groups
The record cleaning message that port fixed time broadcast is sent；The record cleaning message carries virtual LAN bitmap VLAN Bitmap
Field, the VLAN Bitmap fields are filled with Smart Link groups where the master port in forwarding state before link switching
Protect VLAN ID；Processing unit, obtains the protection VLAN ID in record cleaning message VLAN Bitmap fields, described in preservation
Protect the correspondence between VLAN ID and receiving record cleaning message inbound port；The receiving unit, in Smart Link groups
Switching equipment active link failure when, receive the cleaning of the secondary port broadcast transmission from the switching equipment of Smart Link groups
Message；It is described cleaning message carry VLAN Bitmap fields, the VLAN Bitmap fields be filled with link switching before in turn
The protection VLAN ID of Smart Link groups where the master port of hair-like state；The processing unit, obtains cleaning message VLAN
Protection VLAN ID in Bitmap fields, according to the correspondence, delete the MAC that inbound port is corresponded in the protection VLAN
List item.
The beneficial effects of the present invention are the MAC address entries deleted on the switching equipment of upstream are all to follow Smart Link
Group switches over the MAC address entries for needing to migrate new port again, and extra MAC address entries are not deleted, cut so as to control
Broadcast exposure during changing.
Brief description of the drawings
Fig. 1 is Smart Link networking structure schematic diagrames.
Fig. 2 is the flow diagram of the message forwarding method in Smart Link networkings of the present invention.
Fig. 3 is Smart Link networking structure schematic diagrames of the embodiment of the present invention.
Fig. 4 is the structure diagram of the apparatus for forwarding message in Smart Link networkings of the present invention.
Embodiment
The core concept of the present invention is that after Smart Link networkings structure, the switching equipment of Smart Link groups passes through
Record cleaning (Record-Flush) message is reversely sent from master port, is received to trigger upstream switching equipment periodic logging
The ingress port information of Record-Flush messages, is then carried out when failure occurs by Flush message combinations ingress port information
The method that special MAC list item is deleted, the flow that mac refresh need not be carried out to avoid those carry out after Flush messages are received
The influence that broadcast forwarding is brought.
Fig. 2 is the flow diagram of the message forwarding method in Smart Link networkings of the present invention, and this method includes：
Step 21, after the unlatching of Smart Link groups, upstream switching equipment is received from the switching equipment of Smart Link groups
Master port fixed time broadcast send record cleaning message；The record cleaning message carries virtual LAN bitmap (VLAN
Bitmap) field, the VLAN Bitmap fields are filled with Smart where the master port in forwarding state before link switching
The protection VLAN ID of Link groups；
Step 22, upstream switching equipment obtain the protection VLAN ID in record cleaning message VLAN Bitmap fields, protect
Deposit the correspondence between protection VLAN ID and receiving record cleaning the message inbound port；
After upstream switching equipment obtains the protection VLAN ID in record cleaning message VLAN Bitmap fields, this method
Further comprise：The record is cleared up message to be broadcasted in the protection VLAN.
Step 23, in the active link failure of the switching equipment of Smart Link groups, upstream switching equipment receive from
The cleaning message of the secondary port broadcast transmission of the switching equipment of Smart Link groups；The cleaning message carries VLAN Bitmap
Field, the VLAN Bitmap fields are filled with Smart Link groups where the master port in forwarding state before link switching
Protect VLAN ID；
Step 24, upstream switching equipment obtain the protection VLAN ID in cleaning message VLAN Bitmap fields, according to institute
Correspondence is stated, deletes the MAC address entries that inbound port is corresponded in the protection VLAN.
After upstream switching equipment obtains the protection VLAN ID in cleaning message VLAN Bitmap fields, this method is into one
Step includes：The cleaning message is broadcasted in the protection VLAN.
Preferably, the record cleaning message also carries control VLAN ID (Control VLAN ID) field,
Transmission control VLAN ID of the Control VLAN id fields filled with the configuration of Smart Link groups；
After upstream switching equipment receives the record cleaning message, record cleaning message VLAN Bitmap fields are obtained
In protection VLAN ID before, this method further includes：Judge whether the transmission control VLAN of record cleaning message is receiving report
In the reception control vlan list of the port configuration of text, if obtained in record cleaning message VLAN Bitmap fields
Protect VLAN ID.
Preferably, the cleaning message also carries Control VLAN id fields, which fills out
Transmission control VLAN ID filled with the configuration of Smart Link groups；
After upstream switching equipment receives the cleaning message, the protection in cleaning message VLAN Bitmap fields is obtained
Before VLAN ID, this method further includes：Judge whether the transmission control VLAN of the cleaning message configures in the port for receiving message
Reception control vlan list in, if, obtain cleaning message VLAN Bitmap fields in protection VLAN ID.
It is of the invention to clearly illustrate, concrete scene is set forth below and illustrates.
Fig. 3 is Smart Link networking structure schematic diagrames of the embodiment of the present invention.The Smart Link networkings are annular networking.
The port B and port C of Switch 2 constitutes a Smart Link group, and port B is master port, and port C is secondary port.
The port A connection hosts of Switch 2.Other switching equipment are upstream switching equipment, the J ports of upstream switching equipment Switch4
Connect network.In the case of double uplinks are all normal, master port be in forwarding state, and the link at place is active link, pair
Port is standby, and place link is reserve link.Data are transmitted along active link, and ring is not present in network
Road, avoids producing broadcast storm.
After Smart Link groups are opened, founders of the Switch2 as Smart Link groups, periodically sends from master port B
Record-Flush messages, inbound port is forwarded for message before triggering upstream switching equipment record link switching.
The port of forwarding state is in being organized before the VLAN Bitmap fields filling link switching of Record-Flush messages
The protection VLAN ID of Smart Link groups where B, protection VALN is VALN2 and VALN3 in the present embodiment.Control VLAN
The transmission of id field filling Smart Link group configurations controls VLAN ID, and it is VALN2 that VLAN is controlled in the present embodiment.
Destination MAC are filled with unknown multicast address.Source MAC are filled with the equipment for sending Record-Flush messages
Bridge MAC Address.It should be noted that the Record-Flush messages reversely sent from master port in the present invention, entrained
Field is identical with common Flush messages, and details are not described herein for other fields.
Carried out in the protection VLAN (VALN2 and VALN3) of Record-Flush messages Smart Link groups where B ports
Broadcast.
Switch1 receives Record-Flush messages from port D, judges the transmission control of the Record-Flush messages
Whether VLAN is in the reception control vlan list that the port for receiving message configures.If not in control vlan list is received,
Equipment does not process the Record-Flush messages, directly forwards；If in control vlan list is received, equipment will be extracted
VLAN Bitmap data in Record-Flush messages, including protection VLAN2 and protection VLAN3, determine message in VLAN2
With continue to broadcast in VLAN3；Smart Link groups protection VLAN2 is recorded at the same time and protects the inbound port of the D ports of VLAN3
Information.Wherein, it is same as the prior art to send control VLAN, is that Smart Link groups are used for broadcast transmission Flush messages
VLAN.Receive and control VLAN same as the prior art, be the VLAN that upstream switching equipment is used to receive and process Flush messages.
Similarly, Switch4 receives Record-Flush messages from port H, judges the hair of the Record-Flush messages
Control VLAN is sent whether in the reception control vlan list that the port for receiving message configures.If control VLAN row are not being received
In table, equipment does not process the Record-Flush messages, directly forwards；If in control vlan list were received, equipment
The VLAN Bitmap data in Record-Flush messages, including protection VLAN2 and protection VLAN3 will be extracted, determines that message exists
Continue to broadcast in VLAN2 and VLAN3；Smart Link groups protection VLAN2 is recorded at the same time and protects the H ports of VLAN3
Ingress port information.
Similarly, Switch3 receives Record-Flush messages from port G, judges the hair of the Record-Flush messages
Control VLAN is sent whether in the reception control vlan list that the port for receiving message configures.If control VLAN row are not being received
In table, equipment does not process the Record-Flush messages, directly forwards；If in control vlan list were received, equipment
The VLAN Bitmap data in Record-Flush messages, including protection VLAN2 and protection VLAN3 will be extracted, determines that message exists
Continue to broadcast in VLAN2 and VLAN3；Smart Link groups protection VLAN2 is recorded at the same time and protects the G ports of VLAN3
Ingress port information.
Because the C-terminal mouth of Switch2 is in BLOCK states, the Record-Flush messages of broadcast reach Switch3
Afterwards, just terminate to broadcast.
Wherein, Switch2 timings send Record-Flush broadcasting packets, it is therefore an objective to keep newest port shape as far as possible
State information, for example after a period of time, user may change the link of F ports and H ports, be changed to F port links to other one
A new port.
When the active link of Switch 2 breaks down, master port B is switched to armed state, and secondary port C, which is switched to, to be turned
Hair-like state.
Specifically, when the link between D ports and B ports breaks down, B ports become DOWN, Smart Link groups into
Row is switched fast, and C-terminal mouth returns to normal forwarding state from BLOCK, while upstream switching equipment sends Flush reports to C-terminal mouth
Text.
In being organized before the VLAN Bitmap fields filling link switching of Flush messages where the port B in forwarding state
The protection VLAN ID of Smart Link groups, it is VALN2 and VALN3 that VALN is protected in the present embodiment.Control VLAN ID words
The transmission of section filling Smart Link group configurations controls VLAN ID, and it is VALN2 that VLAN is controlled in the present embodiment.Destination
MAC is filled with unknown multicast address.Source MAC are filled with the bridge MAC Address for the equipment for sending Flush messages.
Broadcasted in the protection VLAN (VALN2 and VALN3) of Flush messages Smart Link groups where C-terminal mouth.
When switching equipment receives Flush messages when upstream, the VLAN Bitmap data in Flush messages are extracted, and combine
The ingress port information of the Record-Flush messages of state-of-the-art record, carries out the deletion of MAC address entries in this equipment.
Specifically,
Whether Switch3 obtains Flush messages, judge the transmission control VLAN of the Flush messages at the end for receiving message
In the reception control vlan list of mouth configuration.If not in control vlan list is received, equipment, which does not do the Flush messages, to be located
Reason, directly forwards；If in control vlan list is received, equipment will extract the VLAN Bitmap data in Flush messages,
Including protection VLAN2 and protection VLAN3, determine that message continues to broadcast in VLAN2 and VLAN3；At the same time according to this equipment
The corresponding ingress port information port G of protection VLAN2 and VLAN3 of upper record, deletion VLAN2 and the MAC address entries that port is G；Delete
Except the MAC address entries that VLAN3 and port are G.
Whether Switch4 obtains Flush messages, judge the transmission control VLAN of the Flush messages at the end for receiving message
In the reception control vlan list of mouth configuration.If not in control vlan list is received, equipment, which does not do the Flush messages, to be located
Reason, directly forwards；If in control vlan list is received, equipment will extract the VLAN Bitmap data in Flush messages,
Including protection VLAN2 and protection VLAN3, determine that message continues to broadcast in VLAN2 and VLAN3；At the same time according to this equipment
The corresponding ingress port information port H of protection VLAN2 and VLAN3 of upper record, deletion VLAN2 and the MAC address entries that port is H；Delete
Except the MAC address entries that VLAN3 and port are H.
Whether Switch1 obtains Flush messages, judge the transmission control VLAN of the Flush messages at the end for receiving message
In the reception control vlan list of mouth configuration.If not in control vlan list is received, equipment, which does not do the Flush messages, to be located
Reason, directly forwards；If in control vlan list is received, equipment will extract the VLAN Bitmap data in Flush messages,
Including protection VLAN2 and protection VLAN3, determine that message continues to broadcast in VLAN2 and VLAN3；At the same time according to this equipment
The corresponding ingress port information port D of protection VLAN2 and VLAN3 of upper record, deletion VLAN2 and the MAC address entries that port is D；Delete
Except the MAC address entries that VLAN3 and port are D.
By the present invention method, the MAC address entries deleted on the switching equipment of upstream be all follow Smart Link groups into
Row switching needs to migrate the MAC address entries of new port again, and extra MAC address entries are not deleted, switched so as to control
Broadcast exposure in journey.
Based on same inventive concept, one embodiment of the invention also proposes that a kind of message in Smart Link networkings turns
Transmitting apparatus, the networking are annular networking, include the switching equipment and upstream switching equipment of flexible link Smart Link groups, the dress
Put and be applied to upstream switching equipment, as shown in figure 4, the device includes：Receiving unit 401 and processing unit 402,
Receiving unit 401, after the unlatching of Smart Link groups, receives the master port of the switching equipment from Smart Link groups
The record cleaning message that fixed time broadcast is sent；The record cleaning message carries virtual LAN bitmap VLAN Bitmap fields,
The VLAN Bitmap fields are filled with the protection of Smart Link groups where the master port in forwarding state before link switching
VLAN ID；
Processing unit 402, obtains the protection VLAN ID in record cleaning message VLAN Bitmap fields, preserves the guarantor
Protect the correspondence between VLAN ID and receiving record cleaning message inbound port；
The receiving unit 401, in the active link failure of the switching equipment of Smart Link groups, receives from Smart
The cleaning message of the secondary port broadcast transmission of the switching equipment of Link groups；The cleaning message carries VLAN Bitmap fields, should
VLAN Bitmap fields are filled with the protection VLAN of Smart Link groups where the master port in forwarding state before link switching
ID；
The processing unit 402, obtains the protection VLAN ID in cleaning message VLAN Bitmap fields, according to described right
It should be related to, delete the MAC address entries that inbound port is corresponded in the protection VLAN.
The processing unit 402, after obtaining the protection VLAN ID in record cleaning message VLAN Bitmap fields, also
Broadcasted for the record to be cleared up message in the protection VLAN.
The processing unit 402, after obtaining the protection VLAN ID in cleaning message VLAN Bitmap fields, is additionally operable to
The cleaning message is broadcasted in the protection VLAN.
The record cleaning message also carries Control VLAN id fields, which is filled with
The transmission control VLAN ID of Smart Link groups configuration；
After receiving the record cleaning message, the protection VLAN in record cleaning message VLAN Bitmap fields is obtained
Before ID, the receiving unit 401 is additionally operable to judge whether the transmission control VLAN of record cleaning message is receiving message
In the reception control vlan list of port configuration, if in the acquisition record cleaning message VLAN of processing unit 402 Bitmap
Protection VLAN ID in field.
The cleaning message also carries Control VLAN id fields, which is filled with
The transmission control VLAN ID of Smart Link groups configuration；
After receiving the cleaning message, before obtaining the protection VLAN ID in cleaning message VLAN Bitmap fields,
The receiving unit 401, is additionally operable to judge whether the transmission control VLAN of the cleaning message is receiving the port configuration of message
Receive in control vlan list, if in the protection in the acquisition cleaning message VLAN Bitmap fields of processing unit 402
VLAN ID。
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God and any modification, equivalent substitution, improvement and etc. within principle, done, should be included within the scope of protection of the invention.
Claims (10)
1. a kind of message forwarding method in Smart Link networkings, which is annular networking, including flexible link Smart
The switching equipment and upstream switching equipment, this method of Link groups include：
After the unlatching of Smart Link groups, upstream switching equipment receives the master port timing from the switching equipment of Smart Link groups
The record cleaning message of broadcast transmission；The record cleaning message carries virtual LAN bitmap VLAN Bitmap fields, should
VLAN Bitmap fields are filled with the protection VLAN of Smart Link groups where the master port in forwarding state before link switching
ID；
Upstream switching equipment obtains the protection VLAN ID in record cleaning message VLAN Bitmap fields, preserves the protection
Correspondence between VLAN ID and receiving record cleaning message inbound port；
In the active link failure of the switching equipment of Smart Link groups, upstream switching equipment is received from Smart Link groups
The cleaning message of the secondary port broadcast transmission of switching equipment；The cleaning message carries VLAN Bitmap fields, the VLAN
Bitmap fields are filled with the protection VLAN ID of Smart Link groups where the master port in forwarding state before link switching；
Upstream switching equipment obtains the protection VLAN ID in cleaning message VLAN Bitmap fields, according to the correspondence,
Delete the MAC address entries that the protection VLAN ID correspond to inbound port.
2. the method as described in claim 1, it is characterised in that upstream switching equipment obtains record cleaning message VLAN
After protection VLAN ID in Bitmap fields, this method further comprises：
The record is cleared up message to be broadcasted in the protection VLAN.
3. the method as described in claim 1, it is characterised in that upstream switching equipment obtains cleaning message VLAN Bitmap words
After protection VLAN ID in section, this method further comprises：
The cleaning message is broadcasted in the protection VLAN.
4. the method as described in claim 1, it is characterised in that the record cleaning message also carries control virtual local area network mark
Know Control VLAN id fields, transmission control of the Control VLAN id fields filled with the configuration of Smart Link groups
VLAN ID；
After upstream switching equipment receives the record cleaning message, obtain in record cleaning message VLAN Bitmap fields
Before protecting VLAN ID, this method further includes：
Judge the reception control VLAN row whether the transmission control VLAN of record cleaning message configures in the port for receiving message
In table, if obtaining the protection VLAN ID in record cleaning message VLAN Bitmap fields.
5. the method as described in claim 1, it is characterised in that the cleaning message also carries Control VLAN id fields,
Transmission control VLAN ID of the Control VLAN id fields filled with the configuration of Smart Link groups；
After upstream switching equipment receives the cleaning message, the protection VLAN in cleaning message VLAN Bitmap fields is obtained
Before ID, this method further includes：
The transmission control VLAN of the cleaning message is judged whether in the reception control vlan list that the port for receiving message configures,
If obtaining the protection VLAN ID in cleaning message VLAN Bitmap fields.
6. a kind of apparatus for forwarding message in Smart Link networkings, which is annular networking, including flexible link Smart
The switching equipment and upstream switching equipment of Link groups, the device are applied to upstream switching equipment, which includes：
Receiving unit, after the unlatching of Smart Link groups, receives periodically wide from the master port of the switching equipment of Smart Link groups
Broadcast the record cleaning message sent；The record cleaning message carries virtual LAN bitmap VLAN Bitmap fields, the VLAN
Bitmap fields are filled with the protection VLAN ID of Smart Link groups where the master port in forwarding state before link switching；
Processing unit, obtains the protection VLAN ID in record cleaning message VLAN Bitmap fields, preserves the protection VLAN
Correspondence between ID and receiving record cleaning message inbound port；
The receiving unit, in the active link failure of the switching equipment of Smart Link groups, receives from Smart Link groups
Switching equipment secondary port broadcast transmission cleaning message；The cleaning message carries VLAN Bitmap fields, the VLAN
Bitmap fields are filled with the protection VLAN ID of Smart Link groups where the master port in forwarding state before link switching；
The processing unit, obtains the protection VLAN ID in cleaning message VLAN Bitmap fields, according to the correspondence,
Delete the MAC address entries that the protection VLAN ID correspond to inbound port.
7. device as claimed in claim 6, it is characterised in that the processing unit, obtains record cleaning message VLAN
After protection VLAN ID in Bitmap fields, it is additionally operable to
The record is cleared up message to be broadcasted in the protection VLAN.
8. device as claimed in claim 6, it is characterised in that the processing unit, obtains cleaning message VLAN Bitmap words
After protection VLAN ID in section, it is additionally operable to
The cleaning message is broadcasted in the protection VLAN.
9. device as claimed in claim 6, it is characterised in that the record cleaning message also carries control virtual local area network mark
Know Control VLAN id fields, transmission control of the Control VLAN id fields filled with the configuration of Smart Link groups
VLAN ID；
Receive it is described record cleaning message after, obtain record cleaning message VLAN Bitmap fields in protection VLAN ID it
Before,
The receiving unit, is additionally operable to judge whether the transmission control VLAN of record cleaning message matches somebody with somebody in the port for receiving message
In the reception control vlan list put, if in the guarantor in processing unit acquisition record cleaning message VLAN Bitmap fields
Protect VLAN ID.
10. device as claimed in claim 6, it is characterised in that the cleaning message also carries Control VLAN ID words
Section, transmission control VLAN ID of the Control VLAN id fields filled with the configuration of Smart Link groups；
After receiving the cleaning message, before obtaining the protection VLAN ID in cleaning message VLAN Bitmap fields,
The receiving unit, is additionally operable to judge whether the transmission control VLAN of the cleaning message is receiving the port configuration of message
Receive in control vlan list, if in the protection VLAN in processing unit acquisition cleaning message VLAN Bitmap fields
ID。
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| CN105591919B (en) * | 2015-08-31 | 2018-11-27 | 新华三技术有限公司 | A kind of processing method and equipment of FLUSH message |
| CN105634939A (en) * | 2016-04-11 | 2016-06-01 | 上海斐讯数据通信技术有限公司 | Ethernet device for telecommunication network and protection switching method |
| CN106878051B (en) * | 2016-12-16 | 2020-10-09 | 新华三技术有限公司 | Multi-machine backup implementation method and device |
| CN108881011B (en) * | 2017-05-08 | 2022-03-29 | 中兴通讯股份有限公司 | LACP (Link aggregation control protocol) switching method and device applied to cross-device |
| CN109474531B (en) * | 2018-12-24 | 2021-06-25 | 安徽皖兴通信息技术有限公司 | Method for deleting synchronization of packet access network switching table items |
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