From: kym blair (kymblair@hotmail.com)
Date: Wed Apr 16 2003 - 09:42:10 GMT-3
Richard,
IGMP is required for the client to send a join or leave message to the
router, so you must know how to configure IGMP. The Cisco Proprietary CGMP
is a neat feature that allows the router to notify the switch when a client
has left a multicast group and to stop delivering the multicasts to that
port; so while CGMP is not absolutely necessary, it is also easy to
configure and a candidate for the exam.
An alternative to CGMP is IGMP Snooping. The difficult part for configuring
IGMP Snooping is knowing how to turn the IP address into a MAC address;
otherwise it is easy. Since CGMP is available on the 3550, you probably
don't need to know how to configure IGMP Snooping; but if 6509's ever enter
the Lab, I'd be prepared for snooping.
HTH, Kym
>From: Richard Davidson <rich@myhomemail.net>
>Reply-To: Richard Davidson <rich@myhomemail.net>
>To: groupstudy <ccielab@groupstudy.com>
>Subject: CGMP or IGMP
>Date: Tue, 15 Apr 2003 18:59:39 -0700 (PDT)
>
>Out of CGMP and IGMP, does anyone know which one is
>More likley to be tested?
>Rich
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