[c-nsp] Adding static multicast entry with IGMP snooping

Ruben Montes (Europe) Ruben.Montes at eu.didata.com
Wed Oct 24 10:36:52 EDT 2007


We're moving some of our VMWare servers from our core C6513 to a new
Cisco 4948 switch.

We are migrating the same configuration for these servers from the C6513
to the C4948.

We have some static MAC multicast entries, and the "mac-address-table
static " command seems not compatible with IGMP snooping and we should
replace it.

When we introduce this command (mac-address-table static 0100.5e7f.0399
vlan 103 interface Port-channel1), it says that IGMP snooping is enabled
in vlan 103 and we should use the command "ip igmp snooping vlan"

Then I have two options:

1 - Disable IGMP snooping and put the same command (mac-address-table
static 0100.5e7f.0399 vlan 103 interface Port-channel1)

2 - With IGMP snooping enabled, configure the equivalent command with
the " ip igmp snooping vlan" (ip igmp snooping vlan 103 static
0100.5e7f.0399 interface Port-channel1)

I think the best option is number 2, but does this new command behave
exactly the same as the old one?

What do you think?

Thanks in advance,


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