On Saturday 10 April 2010 05:31:23 pm vince anton wrote:
ive been doing some work in the lab with igmp and pim on
3560 and 4948 and they seemed to behave differently.
i'd like to see if anyone on the list has had similar
experiences or if im getting something wrong, or hitting
any bugs.
The behavior you describe sounds correct. IGMP snooping depends on IGMP
traffic in order to have something to snoop. Without an IGMP querier, you
can only count on the initial (unsolicited) IGMP host report. There might
be no other traffic, rendering IGMP snooping is totally helpless. It
I think if you have a router upstream configured for PIM you won't need to
configure the switch as the querier
On Sun, Apr 11, 2010 at 4:07 PM, christopher.mar...@usc-bt.com wrote:
Said Vince:
On the C3560, with default config, i believe igmp snooping is enabled
by default. A multicast
Said Vince:
On the C3560, with default config, i believe igmp snooping is enabled
by default. A multicast source floods all traffic to all ports in the
vlan, until I configure 'ip igmp snooping querier' at which point the
flooding stops. I would have expected igmp snooping to figure out that
Hi
ive been doing some work in the lab with igmp and pim on 3560 and 4948 and
they seemed to behave differently. i'd like to see if anyone on the list
has had similar experiences or if im getting something wrong, or hitting any
bugs.
On the C3560, with default config, i believe igmp snooping
