3com 5500-ei pwr Reference Guide

 

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Since some devices cannot forward the multicast packets with the destination MAC address of 

0180-C200-000A, HGMPv2 packets cannot traverse these devices. For a cluster to work normally in 

this case, you can modify the multicast destination MAC address of HGMPv2 protocol packets without 

changing the current networking. 

Related commands: cluster-mac syn-interval. 

# Configure multicast MAC address 0180-C200-0028 for HGMPv2 protocol packets. 

<aaa_0.Sysname> system-view 

System View: return to User View with Ctrl+Z. 

[aaa_0.Sysname] cluster 

[aaa_0.Sysname-cluster] cluster-mac 0180-C200-0028 

cluster-mac syn-interval time-interval 

Cluster view 

time-interval: Interval to send multicast MAC synchronization packets, ranging from 0 to 30 minutes. 

Use the cluster-mac syn-interval command to set the interval for the management device to send 

HGMP V2 multicast MAC synchronization packets periodically. You can only use this command on a 

management device. 

By default, this interval is one minute. 

HGMPv2 multicast MAC synchronization packets are used for synchronizing the HGMPv2 multicast 

MAC address configuration (configured through the cluster-mac command) between devices in a 

cluster, so that HGMPv2 protocol packets can be forwarded normally within the cluster. HGMPv2 

multicast MAC synchronization packets are Layer 2 multicast packets. 

If you set this interval to zero on a management device, the management device will not send HGMP V2 

multicast MAC synchronization packets to other devices. 

Related commands: cluster-mac. 

# Set the interval for the management device to send HGMP V2 multicast MAC synchronization packets 

to one minute. 

<aaa_0.Sysname> system-view 

System View: return to User View with Ctrl+Z. 

[aaa_0.Sysname] cluster 

[aaa_0.Sysname-cluster] cluster-mac syn-interval 1