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Multicast Q: "ip cgmp" at the MSFC Interface

I understand that at the switch level "cgmp enable" will keep multicasts from flooding all ports on the switch and keep performance humming. But I see that at the interface level in at the MSFC you have the option of adding "ip cgmp" on that interface. What would be the purpose of that? Thanks.

  • Other Network Infrastructure Subjects
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New Member

Re: Multicast Q: "ip cgmp" at the MSFC Interface

It is there to act as a CGMP server for "other" CGMP capable switches. For example, if you have an XL switch that only supports CGMP, the MSFC will be the CGMP server to help the XL switch build its mcast forwarding table.

HTH,

Robert

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