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MCAST/3/ENTRY
Message
MCAST/3/ENTRY:Failed to set forwarding table(group ip= [STRING],group mac=[STRING],source ip=[STRING],in-VlanID=[ULONG]).The operation is [STRING] and the result is [ULONG].
Parameters
| Parameter Name | Parameter Meaning |
|---|---|
| group ip | Indicates the group IP address. |
| group mac | Indicates the group MAC address. |
| source ip | Indicates the source IP address. |
| in-VlanID | Indicates the In VLAN ID. |
| [STRING] | Indicates adding a multicast forwarding entry to a chip or deleting a multicast forwarding entry from a chip fails. |
| [ULONG] | Indicates the operation result. |
Possible Causes
The multicast forwarding entry being deleted does not exist on the chip.
The index resource application failed.
Procedure
- If this log is recorded because a delete operation was performed on a nonexistent entry on the chip, ignore this informational log. If not, go to step 2.
- Run the display
multicast forwarding-table command to check the Layer 3 forwarding table or run the display
l2-multicast forwarding-table command to check Layer
2 multicast forwarding table. Determine whether the number of multicast
entries exceeds the product specification. For
the product specifications, log in to Huawei official website to download
the product brochure or product feature list for channel (if your
account is unauthorized, contact Huawei local office).
- If yes, go to step 3.
- If no, the index resource application may have failed. Go to step 4.
- Run the reset multicast forwarding-table [ group-address | source-address ] command to delete redundant Layer 3 multicast forwarding entries. Or run the reset igmp-snooping group vlan [ vlan-id ] group-address [ group-address ] command to delete redundant Layer 2 multicast forwarding entries. Then re-configure multicast services. If this log persists, go to step 4.
- Collect log information and configuration information, and then contact technical support personnel. You can collect diagnostic information using the display diagnostic-information command.
- Check the Result=[ULONG] field. Result=21 indicates that the number of multicast forwarding entries reaches the maximum or a hash collision occurs. Result=22 indicates that the multicast forwarding entry is not found. Result=23 indicates that the multicast forwarding entry already exists. If the preceding return values are displayed in the log, the multicast service may be abnormal. In this case, contact technical support personnel. If the Result value is 21, the possible causes are as follows: 1) There are too many multicast forwarding entries on the device, which cause a hash collision and the failure to deliver the multicast forwarding entry. (2) There are too many ARP entries on the device, which cause a hash collision and the failure to deliver the multicast forwarding entry. The technical support engineer may run the set multicast forwarding-table optimization-mode command to set the storage mode of Layer 3 multicast forwarding entries to optimization mode. When this command is executed or deleted, the system prompts the user to restart the device. If the user does not respond to the system prompt, the system returns to the system view after timeout and does not restart.
