CN112671642A - Message forwarding method and device - Google Patents
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- CN112671642A CN112671642A CN202110050502.5A CN202110050502A CN112671642A CN 112671642 A CN112671642 A CN 112671642A CN 202110050502 A CN202110050502 A CN 202110050502A CN 112671642 A CN112671642 A CN 112671642A
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Abstract
The application provides a message forwarding method and equipment, which are used for realizing forwarding of a cross-equipment link aggregation group through a virtual link. The message method comprises the following steps: receiving a multicast data message; respectively copying a multicast data message for a local member port and a tunnel port of a cross equipment link aggregation group in a multicast forwarding table item; the tunnel port is a tunnel port of a VPN tunnel of a two-layer virtual private network connected with opposite end equipment of a cross-equipment link aggregation group; sending a copy of multicast data message through a local member port; and encapsulating a copy of multicast data message according to the two-layer VPN tunnel corresponding to the tunnel portal, and sending the encapsulated multicast data message through a physical port of the tunnel portal, so that when the local member port fails, the opposite terminal equipment decapsulates the encapsulated multicast data message and forwards the decapsulated multicast data message through the opposite terminal member port.
Description
Technical Field
The present application relates to communications technologies, and in particular, to a method and a device for forwarding a packet.
Background
The M-LAG (Multi _ chassis Link Aggregation Group) technology is to perform Link Aggregation negotiation between two switches and accessed devices in the same state
Fig. 1 is a schematic diagram of an existing M-LAG networking, where a peer-Link (opposite end Link) of a directly connected two-layer Link must be passed between switches a and B.
After the configuration of the switch A and the switch B is completed, the switch A and the switch B are paired, a Hello message is sent on a peer-link periodically, the Hello message carries information such as a Group ID (Group identification), a protocol version number, a system MAC address and the like of local configuration, and after the Hello message of an opposite terminal is received, the Group IDs are judged to be the same and paired. The switch A and the switch B send election messages through peer-link, and high-priority equipment is selected as main equipment. And after the switch A and the switch B are successfully paired, sending a synchronous message carrying synchronous information through a peer-link. The synchronization information sent between the switches a and B at least includes a device name, a system MAC (Media Access Control) Address, a software version, an M-LAG state, STP (Spanning Tree Protocol), BPDU (Bridge Protocol Data Unit) information, an MAC Address entry, an ARP (Address Resolution Protocol) entry, an IGMP (Internet Group Management Protocol) entry, and the like.
A special keep alive link is arranged between the switch A and the switch B, and after the two switches are successfully paired, the heartbeat is sent through the keep alive link to detect a peer-link fault.
In the existing MLAG networking shown in fig. 1, a separate and directly connected physical Link between the switches a and B is required to be used as a peer-Link synchronous control plane and to be forwarded across devices, and a separate keep alive is also required, so that physical Link connection is increased.
Disclosure of Invention
The application aims to provide a message forwarding method and device, and forwarding of a cross-device link aggregation group is achieved in a virtual link mode.
In order to achieve the above object, the present application provides a packet forwarding method, including: receiving a multicast data message; respectively copying a multicast data message for a local member port and a tunnel port of a multicast forwarding table item cross-equipment link aggregation group; wherein, the tunnel port is a tunnel port of a two-layer VPN (Virtual Private Network) tunnel connected with opposite end equipment of the cross equipment link aggregation group; sending a copy of multicast data message through a local member port; and sending the encapsulated multicast data message through a physical port of the tunnel portal so that when the local member port fails, the opposite terminal equipment decapsulates the encapsulated multicast data message and forwards the multicast data message through the opposite terminal member port.
In order to achieve the above object, the present application further provides a message forwarding device, which includes a receiving module, configured to receive a multicast data message; the multicast forwarding module is used for respectively copying a multicast data message for a local member port and a tunnel port of a cross equipment link aggregation group in a multicast forwarding table entry; the tunnel port is a tunnel port of a two-layer VPN tunnel connected with opposite-end equipment of a cross-equipment link aggregation group; the sending module is used for sending a copy of multicast data message through a local member port; and encapsulating a copy of multicast data message according to a two-layer VPN tunnel corresponding to the tunnel port, and sending the encapsulated multicast data message through a physical port of the tunnel port.
The method and the device have the advantages that the PeerLink of the M-LAG is realized through the virtual Link, and the PeerLink is realized without configuring a separate physical Link for the networking of the M-LAG, so that the actual networking environment is simplified.
Drawings
FIG. 1 is a diagram of a conventional M-LAG networking;
fig. 2 is a flowchart of an embodiment of a message forwarding method provided in the present application;
FIG. 3 provides a schematic diagram of an embodiment of M-LAG networking;
fig. 4A-4B are schematic diagrams of embodiments of forwarding a multicast packet across devices in fig. 3;
fig. 5A-5B are schematic diagrams of embodiments of forwarding unicast packets across devices in fig. 3;
fig. 6 is a schematic diagram of an embodiment of a message forwarding device provided in the present application.
Detailed Description
A detailed description will be given of a number of examples shown in a number of figures. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present application. Well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the examples.
The term "including" as that term is used is meant to include, but is not limited to; the term "comprising" means including but not limited to; the terms "above," "within," and "below" include the instant numbers; the terms "greater than" and "less than" mean that the number is not included. The term "based on" means based on at least a portion thereof.
Fig. 2 is a flowchart of an embodiment of a message forwarding method provided in the present application, where the method includes:
Fig. 2 shows that the devices of the M-LAG use the reliability of the two-layer VPN tunnel to send the multicast data packet to another device of the M-LAG for backup, so that when the local member port fails, the downlink connected to the member port of the opposite device of the M-LAG is forwarded.
FIG. 3 provides a schematic diagram of an embodiment of M-LAG networking;
and the switch A and the switch B of the M-LAG configure a corresponding aggregation port Trunk-1. The member port table of the aggregation port Trunk-1 of the switch a is set as table 1, and the member port table of the aggregation port Trunk-1 of the switch B is set as table 2.
| M-LAG | Member port |
| Trunk-1 | Port a1 |
TABLE 1
| M-LAG | Member port |
| Trunk-1 | Port b1 |
TABLE 2
The switches A and B are configured with VxLAN (Virtual Extensible Local Area Network) tunnels, the original Peer Link is replaced by the Virtual Link VxLAN tunnels, extra networking configuration is not needed, and physical resources are saved. Because a physical Link of a core network applied to the VxLAN network has a backup Link, the reliable line of the VxLAN tunnel established on the IP core network is used for replacing a PeerLink synchronous table entry or interface data, and the uplink network cannot be consumed too much.
After the configuration of the switches A and B at the two ends of the M-LAG is completed, the switches A and B regularly send a Hello message encapsulated by the VxLAN through the VxLAN tunnel, wherein the Hello message carries information such as own group identification, protocol version number, system MAC address and the like.
And after the switches A and B receive the VxLAN-encapsulated Hello message, the VxLAN encapsulation is removed, and whether the group identifications carried by the received Hello message of the opposite terminal are the same or not is judged. If so, the pairing is successful. After the switches a and B are successfully paired, the master device and the slave device of the M-LAG are elected according to the priority, for example, the smaller the system MAC address in Hello is, the higher the priority is.
After the switch A and the switch B complete the election of the main equipment and the standby equipment, sending VxLAN encapsulated synchronous messages through the VxLAN tunnel; the synchronization information carried by the synchronization message at least comprises: device name, system MAC address, software version, M-LAG status, STP BPDU information, MAC, ARP, IGMP table entries, etc. The switches A and B also send keep-alive messages encapsulated by the VxLAN through the VxLAN tunnel.
Fig. 4A-4B are schematic diagrams of embodiments of forwarding a multicast packet across devices in fig. 3.
In fig. 4A, the terminal sends a multicast group join message 401, such as an IGMP Report message, for joining the multicast group. The switch C receives the multicast group join message 401, and selects the link connected to the switch a from the two links connected to the M-LAG according to the load sharing algorithm. The switch C sends a multicast group join message 401 to switch a.
The switch a receives the multicast group join message 401 through the member port a1 of the Trunk-1, and searches the multicast member list. And when finding the established multicast member list, the switch A adds the member Port a1 of the aggregation Port Trunk-1 and the tunnel Port Virtual Port of the VxLAN tunnel into the multicast member list. In this embodiment, if the switch a does not find the multicast member list according to the received multicast group join message 401, a multicast member list is newly created, and the member Port a1 of the Trunk-1 and the Virtual Port of the VxLAN tunnel are added to the multicast member list.
And the switch A sends the VxLAN encapsulated synchronous message through the VxLAN tunnel, and synchronizes the local multicast member list to the switch B. And the switch B receives the VxLAN encapsulated synchronous message, and stores the multicast member list of the switch A after the VxLAN encapsulation is removed.
The switch a receives the multicast data packet 402, finds out the multicast member list, copies one copy of the multicast data packet 402 for the member Port a1 and the Virtual Port of the tunnel portal, and sends the copied multicast data packet 402 to the switch C through the member Port a1, and the switch C can send the multicast data packet 402 to the terminal according to the multicast table entry established by IGMP Snooping.
The switch A encapsulates a copy of multicast data message according to the VxLAN tunnel corresponding to the Virtual Port of the tunnel Port, and sends the VxLAN encapsulated multicast data message 403 to the opposite terminal device switch B through the physical Port of the VxLAN tunnel Port.
The switch B receives the multicast data message 403 encapsulated by the VxLAN, and discards the received multicast data message 402 encapsulated by the VxLAN because the member port B1 of the aggregation port Trunk-1 of the M-LAG of the switch B blocks sending of the multicast data message.
In fig. 4B, switch a detects a failure of member Port a1, generates a member Port failure notification message, and according to a VxLAN tunnel encapsulation member Port failure notification message corresponding to a Virtual Port of a tunnel interface, sends a member Port failure notification message 404 after VxLAN encapsulation to opposite device switch B through a physical Port of the VxLAN tunnel interface.
Switch B receives the VxLAN encapsulated member port failure notification message 404 and sets local member port B1 to the type that allows forwarding multicast data messages.
The switch a receives the multicast data packet 402, finds the multicast member list, and copies the multicast member list to the member Port a1 and the tunnel portal Virtual Port respectively. Switch a discards the multicast datagram 402 replicated for the failed member port a1 failure.
The switch A encapsulates a copy of multicast data message according to the VxLAN tunnel corresponding to the Virtual Port of the tunnel Port, and sends the VxLAN encapsulated multicast data message 403 to the opposite terminal device switch B through the physical Port of the VxLAN tunnel Port.
The switch B receives the multicast data message 403 encapsulated by the VxLAN, releases the VxLAN encapsulation, and sends the multicast data message 402 to the switch C through the member port B1 of the aggregation port Trunk-1 of the M-LAG. The switch C may send the multicast data packet 402 to the terminal according to the multicast entry established by the IGMP Snooping.
In fig. 4A-4B, when the switch a receives the broadcast packet, the method of broadcasting according to the local member Port a1 and the tunnel portal Virtual Port in the broadcast forwarding table is the same as the method of forwarding the multicast data packet by the switch a in fig. 4A-4B, and the switch B is also the same, which is not described herein again. Fig. 4A-4B realize forwarding and backup of multicast data packets in case of failure by using VxLAN tunnel instead of peer-link of M-LAG.
Fig. 5A-5B are schematic diagrams of embodiments of forwarding unicast messages across devices in fig. 3. In fig. 5A, the terminal sends the uplink unicast data packet 501 to the switch C, and after the switch C learns the MAC address table entry according to the source MAC address, the uplink connected to the switch a may be selected according to the load sharing algorithm, and the uplink unicast packet 501 is sent to the switch a.
After receiving the uplink unicast message through the member port a1, the switch a learns the MAC address table entry according to the source MAC address of the uplink unicast message and the Trunk-1. Then, the switch A executes two-layer or three-layer forwarding according to the destination MAC address of the uplink unicast data message.
The switch A sends a VxLAN encapsulated synchronous message through the VxLAN tunnel, and synchronizes a local learned MAC address table item to the switch B. And the switch B receives the VxLAN encapsulated synchronous message, and stores the MAC address table item learned by the switch A after the VxLAN encapsulation is removed.
When the switch a receives the downlink unicast data message 502 sent to the terminal, the outlet port of the MAC address table entry is found to be the aggregation port Trunk-1 according to the destination MAC address of the downlink unicast data message, and the local member port a1 is selected to send the downlink unicast data message 502 to the switch C according to the member port table of the aggregation port Trunk-1 shown in table 1. The switch C finds the MAC address table entry of the learned terminal according to the destination MAC address of the downlink unicast data packet 502, and then sends the learned terminal to the terminal.
In fig. 5B, switch a detects a failure of member Port a1, generates a member Port failure notification message, and according to a VxLAN tunnel encapsulation member Port failure notification message corresponding to a Virtual Port of a tunnel interface, sends a member Port failure notification message 503 after VxLAN encapsulation to opposite device switch B through a physical Port of the VxLAN tunnel interface.
The switch A enables a unicast access control table entry of the M-LAG; the matching item (Match Field) is a unicast message type and an aggregation Port Trunk-1, and the Action Field (Action Field) is sent through a Virtual Port of a tunnel Port.
When the switch A receives the downlink unicast data message 502 sent to the terminal, the switch A finds out that the output port of the MAC address table entry is the aggregation port Trunk-1 according to the destination MAC address of the downlink unicast data message, and finds out the enabled unicast access control table entry according to the report-out type of the downlink unicast data message 502 and the aggregation port Trunk-1.
The switch A encapsulates the downlink unicast data message 502 through the VxLAN tunnel corresponding to the Virtual Port of the tunnel Port according to the enabled unicast access control table entry, and sends the VxLAN encapsulated downlink unicast data message 504 to the opposite terminal device switch B through the physical Port of the VxLAN tunnel Port.
The switch B receives the VxLAN-encapsulated downlink unicast data message 504, removes the VxLAN encapsulation to obtain a downlink unicast data message 502, and finds out that the output port of the synchronous MAC address table entry is an aggregation port Trunk-1 according to the destination MAC address of the downlink unicast data message 502.
Switch B selects local member port B1 to send the downlink unicast data packet 502 to switch C according to the member port table of aggregation port Trunk-1 shown in table 2. The switch C finds the MAC address table entry of the learned terminal according to the destination MAC address of the downlink unicast data packet 502, and then sends the learned terminal to the terminal.
In the above embodiments of the present application, after the switch C selects the uplink connected to the switch B according to the load sharing algorithm, the message forwarding manner of the switch B is the same as that of the switch a, which is not described in detail herein. In the above embodiment of the present application, the Virtual link between the switches a and B that implements the peer-link may also be an evi (ethernet Virtual interconnection) tunnel of the two-layer VPN.
The embodiments of the present application disclose that a tunnel of a two-layer VPN is used as a virtual Link to implement a Peer Link of an M-LAG, and a separate physical Link does not need to be configured for M-LAG networking to implement the Peer Link, and an existing core network is used to implement establishment of an M-LAG system and forwarding and backup of multicast and unicast data packets during failure, thereby simplifying an actual networking environment.
Fig. 6 is a schematic diagram of an embodiment of a message forwarding device provided in the present application, where the device 60 includes: a forwarding control module 61, a receiving module 62, a sending module 63, a detecting module 64, a multicast forwarding module 65, and a unicast forwarding module 66.
The receiving module 61 may be configured to receive the encapsulated hello packet, the encapsulated sync packet, and the encapsulated keep-alive packet through the two-layer VPN tunnel. The receiving module 62 is further configured to receive a multicast protocol packet such as a multicast group join packet through a local member port of the inter-device link aggregation group; and is also used for receiving multicast data messages, such as multicast data messages, broadcast messages and the like of the multicast group.
The multicast forwarding table configured by multicast forwarding module 65 may be a multicast member list or a broadcast forwarding table. The multicast forwarding module 65 may add the local member port and the tunnel port of the two-layer VPN tunnel connecting the opposite device of the cross-device link aggregation group to the multicast member list of the multicast group according to the multicast group join packet received by the local member port. The broadcast forwarding table configured by the multicast forwarding module 65 includes the local member port and the broadcast forwarding table of the tunnel port.
And the forwarding control module 61 can be used for generating hello messages, synchronous messages and keep-alive messages. The sending module 63 is configured to send the hello packet, the encapsulated sync packet, and the encapsulated keep-alive packet through a physical port of a tunnel portal according to the tunnel encapsulation hello packet, the sync packet, and the keep-alive packet corresponding to the tunnel portal of the two-layer VPN tunnel.
The receiving module 62 receives the multicast data packet.
A multicast forwarding module 65, configured to copy a multicast data packet for each of the local member ports and the tunnel ports of the cross device link aggregation group in the multicast forwarding entry; the tunnel port is a tunnel port of a two-layer Virtual Private Network (VPN) tunnel connected with opposite-end equipment of a cross-equipment link aggregation group.
The sending module 63 is further configured to send a copy of the multicast data packet through the local member port; and encapsulating a copy of multicast data message according to a two-layer VPN tunnel corresponding to the tunnel port, and sending the encapsulated multicast data message through a physical port of the tunnel port.
The detection module 64 is further configured to detect a local member port failure. The forwarding control module 61 is further configured to enable a unicast access control entry of the cross-device link aggregation group; the matching items of the unicast access control table items are unicast message types and aggregation ports of the cross-device link aggregation groups, and the action items of the unicast access control table items are sent through tunnel ports. The receiving module 62 is further configured to receive a downlink unicast message.
The unicast forwarding module 66 is further configured to find an aggregation port of the cross-device link aggregation group corresponding to the egress port of the destination MAC address of the downlink unicast message; and determining that the downlink unicast message matches the unicast access control table entry. The sending module 63 is further configured to encapsulate the downlink unicast message according to the action item of the unicast access control table entry and the two-layer VPN tunnel corresponding to the tunnel portal, and send the encapsulated downlink unicast message through the physical port of the tunnel portal.
The receiving module 62 is further configured to receive the uplink unicast message through the local member port. The unicast forwarding module 66 is further configured to learn an MAC address table entry according to the source MAC address of the uplink unicast packet and the aggregation port to which the local member port belongs.
The receiving module 62 is further configured to receive the encapsulated member port failure notification message through the two-layer VPN tunnel, and send the message to the forwarding control module.
The forwarding control module 61 is further configured to block the local member port from forwarding the encapsulated multicast data packet received by the two-layer VPN tunnel; and setting the local member port as a type allowing the multicast data message to be forwarded according to the encapsulated member port fault notification message received by the receiving module.
A detection module 64, configured to detect a local member port failure. The forwarding control module 61 is further configured to generate a member port fault notification message; the sending module 63 is further configured to send a member port failure notification packet after encapsulation through a physical port of a tunnel portal according to a member port failure notification packet encapsulated by a two-layer VPN tunnel at the tunnel portal.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.
Claims (10)
1. A message forwarding method is characterized in that the method comprises the following steps:
receiving a multicast data message;
respectively copying a multicast data message for a local member port and a tunnel port of a cross-equipment link aggregation group in a multicast forwarding table entry; wherein, the tunnel port is a tunnel port of a two-layer Virtual Private Network (VPN) tunnel connected with opposite end equipment of the cross-equipment link aggregation group;
sending a copy of multicast data message through the local member port;
and encapsulating a copy of multicast data message according to the two-layer VPN tunnel corresponding to the tunnel port, and sending the encapsulated multicast data message through a physical port of the tunnel port, so that when the local member port fails, the opposite terminal equipment decapsulates the encapsulated multicast data message and forwards the decapsulated multicast data message through the opposite terminal member port.
2. The method of claim 1, further comprising:
detecting a failure of the local member port;
enabling a unicast access control table entry of the cross-device link aggregation group; the matching items of the unicast access control table items are unicast message types and aggregation ports of the cross-device link aggregation groups, and the action items of the unicast access control table items are sent through the tunnel ports;
receiving a downlink unicast message;
finding out that the output port of the destination MAC address of the downlink unicast message corresponds to the aggregation port of the cross-device link aggregation group;
determining that the downlink unicast message matches the unicast access control table entry, encapsulating the downlink unicast message according to the two-layer VPN tunnel corresponding to the tunnel portal according to an action item of the unicast access control table entry, and sending the encapsulated downlink unicast message through a physical port of the tunnel portal, so that the opposite terminal device decapsulates the encapsulated downlink unicast data message and forwards the decapsulated downlink unicast data message through the opposite terminal member port.
3. The method of claim 1, further comprising:
receiving an uplink unicast message through the local member port;
and learning an MAC address table item according to the source MAC address of the uplink unicast message and the aggregation port to which the local member port belongs.
4. The method of claim 1, further comprising:
blocking the local member port from forwarding the encapsulated multicast data message received by the two-layer VPN tunnel;
when receiving a failure notification message of the encapsulated member port through the two-layer VPN tunnel;
and setting the local member port as a type allowing forwarding of the multicast data message.
5. The method of claim 1, further comprising:
detecting a failure of the local member port;
and generating and sending a packaged member port fault notification message through the two-layer VPN tunnel.
6. A message forwarding device, the device comprising:
a receiving module, configured to receive a multicast data packet;
a multicast forwarding module, configured to copy a multicast data packet for each of a local member port and a tunnel port of a cross device link aggregation group in a multicast forwarding entry; wherein, the tunnel port is a tunnel port of a two-layer Virtual Private Network (VPN) tunnel connected with opposite end equipment of the cross-equipment link aggregation group;
the sending module is used for sending a copy of multicast data message through the local member port; and encapsulating a copy of multicast data message according to the two-layer VPN tunnel corresponding to the tunnel port, and sending the encapsulated multicast data message through a physical port of the tunnel port.
7. The device of claim 6, further comprising a detection module, a forwarding control module, a unicast forwarding module;
the detection module is used for detecting the fault of the local member port;
the forwarding control module is configured to enable a unicast access control table entry of the cross-device link aggregation group; the matching items of the unicast access control table items are unicast message types and aggregation ports of the cross-device link aggregation groups, and the action items of the unicast access control table items are sent through the tunnel ports;
the receiving module is further configured to receive a downlink unicast message;
the unicast forwarding module is configured to find that an egress port of a destination MAC address of the downlink unicast packet corresponds to an aggregation port of the cross-device link aggregation group; determining that the downlink unicast message matches the unicast access control table entry;
and the sending module is used for encapsulating the downlink unicast message according to the two-layer VPN tunnel corresponding to the tunnel port according to the action item of the unicast access control table item and sending the encapsulated downlink unicast message through a physical port of the tunnel port.
8. The apparatus of claim 1,
the receiving module is further configured to receive an uplink unicast message through the local member port;
the unicast forwarding module is further configured to learn an MAC address table entry according to the source MAC address of the uplink unicast packet and the aggregation port to which the local member port belongs.
9. The apparatus of claim 1,
the receiving module is further configured to receive a member port failure notification packet through the two-layer VPN tunnel, and send the member port failure notification packet to the forwarding control module;
the forwarding control module is further configured to block the local member port from forwarding the encapsulated multicast data packet received by the two-layer VPN tunnel; and setting the local member port to a type allowing forwarding of multicast data messages according to the encapsulated member port fault notification messages received by the receiving module.
10. The apparatus of claim 6, further comprising: a detection module;
the detection module is used for detecting the failure of the local member port;
the forwarding control module generates a member port fault notification message;
and the sending module is used for encapsulating the member port fault notification message according to the two-layer VPN tunnel corresponding to the tunnel port and sending the encapsulated member port fault notification message through the physical port of the tunnel port.
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| CN113938446A (en) * | 2021-09-23 | 2022-01-14 | 浪潮思科网络科技有限公司 | Multicast table item synchronization method and device based on MLAG environment |
| CN113949623A (en) * | 2021-10-18 | 2022-01-18 | 迈普通信技术股份有限公司 | MLAG double-master abnormity repairing method and device, electronic equipment and storage medium |
| CN115412483A (en) * | 2022-08-30 | 2022-11-29 | 武汉烽火技术服务有限公司 | Method and system for aggregating keep-alive messages and interacting across equipment links |
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| WO2023273938A1 (en) * | 2021-06-30 | 2023-01-05 | 中兴通讯股份有限公司 | Communication method, system and device, and storage medium |
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| WO2022262739A1 (en) * | 2021-06-15 | 2022-12-22 | 中兴通讯股份有限公司 | Fault processing method, switching device and storage medium |
| WO2023273938A1 (en) * | 2021-06-30 | 2023-01-05 | 中兴通讯股份有限公司 | Communication method, system and device, and storage medium |
| WO2023274162A1 (en) * | 2021-07-01 | 2023-01-05 | 中兴通讯股份有限公司 | Cross-device link aggregation switching method, system, switch, and storage medium |
| CN113938446A (en) * | 2021-09-23 | 2022-01-14 | 浪潮思科网络科技有限公司 | Multicast table item synchronization method and device based on MLAG environment |
| CN113949623A (en) * | 2021-10-18 | 2022-01-18 | 迈普通信技术股份有限公司 | MLAG double-master abnormity repairing method and device, electronic equipment and storage medium |
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| CN115412483A (en) * | 2022-08-30 | 2022-11-29 | 武汉烽火技术服务有限公司 | Method and system for aggregating keep-alive messages and interacting across equipment links |
| CN115412483B (en) * | 2022-08-30 | 2023-06-09 | 武汉烽火技术服务有限公司 | Method and system for cross-device link aggregation keep-alive message interaction |
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