What should I do if the number of entries in the multicast routing table reaches the upper limit on an S series switch

8

If the number of multicast entries generated on an S series switch reaches the upper limit, new multicast routing entries cannot be generated. In this case, run the reset multicast routing-table all command to clear multicast routing entries. Multicast data may be temporarily interrupted before multicast routing entries are re-generated.

Other related questions:
How to configure the limit on the number of entries in the forwarding table on an S series switch
For S series switches, you can run the multicast forwarding-table route-limit limit command in the system view to set the maximum number of entries in the multicast forwarding table.

Why does an S series switch have a (*,G) entry and an (S,G) entry in the multicast routing table
It is normal that each multicast group has two entries on an S series switch. For ASM multicast services, the (*,G) entry is generated when a switch receives a user request to join the multicast group, and the (S,G) entry is generated when the switch receives multicast data packets for the multicast group. The outbound interface in the (S,G) entry is obtained from the (*,G) entry.

Processing when the number of logs in the log buffer of the USG2000&5000 series reaches the upper limit
The log buffer is certain fixed space reserved in the flash memory for saving a small amount of log information. After logs are output to the log buffer, you can use the specified command to view the logs on the console or directly view them on the terminal. The log buffer capacity is limited and saves only the latest logs. Therefore, logs must be output to a log host and saved in files for storage and further analysis. The current buffer size refers to the number of logs that can be stored in the log buffer. When the number of logs entering the log buffer exceeds the current log buffer size, new logs overwrite the earliest logs.

Specifications of IPSG table entries on S series switches
Hi, I cannot answer this question. For details about product specifications, click http://e.huawei.com/en/service-hotline to look up the contact method of your local customer service engineers.

Differences between the three multicast-related routing tables on an S series switch
On an S series switch, the following tables are generally searched for MFIB entries: PIM routing table, multicast routing table, and multicast. - A PIM routing table contains entries generated by PIM at the protocol layer. You can view source and group information learned by PIM at the protocol layer in a PIM routing table. - A multicast routing table associates the protocol layer with the MFIB module. Entries at the protocol layer are stored in a multicast routing table before being delivered. Entries stored in the MFIB module must be the same as those stored in the multicast routing table. - A multicast forwarding table contains entries stored in the MFIB module. The MFIB module stores forwarding entries delivered from the protocol layer in the multicast forwarding table. The forwarding entries are then delivered to the multicast module of a switch. Normally, entries stored in the multicast forwarding table must be the same as those stored in the multicast routing table.

If you have more questions, you can seek help from following ways:
To iKnow To Live Chat
Scroll to top