From: Class Act (droppedpacket2006@yahoo.com)
Date: Sun Mar 25 2007 - 20:47:21 ART
Hi all,
Can someone comment on the conflict that in multicast documentation that i have highlighted below.
You can find it in both 12.3 and 12.4 docs.
ip igmp limit (interface)
If you do not configure the except access-list keyword and attribute, all IGMP states resulting from IGMP, IGMP v3lite, or URD are counted toward the configured cache limit on an interface. Use the except access-list keyword and attribute to exclude particular groups or channels from counting toward the IGMP cache limit. An IGMP membership report is counted against the per-interface limit if it is permitted by the extended access list specified by the except access-list keyword and attribute.
Examples
The following example shows how to limit the number of IGMP membership reports on Ethernet interface 0:
interface ethernet 0
ip igmp limit 100
The following example shows how to limit the number of IGMP membership reports on Ethernet interface 0. In this example, any IGMP membership reports from access list 0.0.0.1 do not count toward the configured state limit:
interface ethernet 0
ip igmp limit 100 except 0.0.0.1
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