From: kevin gannon (kevin@gannons.net)
Date: Sun Nov 13 2005 - 13:34:45 GMT-3
Sorry should have said tried dynamic at first then moved to
compatable just in case tested it again there with Dynamic
and no luck.
Thanks & Regards
Kevin
On 11/13/05, Chris Lewis <chrlewiscsco@yahoo.com> wrote:
> Not 100% sure, but the config shown looks like mvr mode is set to default, which does not allow IGMP dynamic joins, you can try mvr mode dynamic as a first step to see if that changes anything.
>
> Chris
>
> kevin gannon <kevin@gannons.net> wrote:
> Just testing MVR on the 3550 and for some reason it will
> not work unless I manually force a port on the switch to
> join the group using the command below:
>
> mvr vlan 99
> mvr
> mvr group 227.27.27.27
> !
> interface FastEthernet0/4
> description #######Reciever port to R1 ###########
> switchport access vlan 12
> switchport mode dynamic desirable
> mvr type receiver
> mvr vlan 99 group 227.27.27.27 <<<< spanning-tree portfast
> !
> interface FastEthernet0/6
> switchport access vlan 99
> switchport mode dynamic desirable
> mvr type source
> !
>
> On Fas0/4 I have attached a router with a "ip igmp-join 227.27.27.27"
> however if I do a "show mvr members" I only ever see the sender port.
> To emulate a sender I simple do a ping on the device attached to Fas0/6
> towards 227.27.27.27.
>
> Yet with the mvr debugs on I can see that MVR seems the IGMP
> join message it just seems not to use it:
>
> 2d20h: MVR: Igsn: processing group report for 227.27.27.27 on port 3, vlan 12
>
> I have tried it with/without igmp snopping enabled just in case. One last
> note I have IP routing enabled on the cat with IP ints for Vlan 12 and 99
> so the ping traffic can get back. But I dont *not* have mcast routing enabled
> as this is documented as breaking MVR.
>
> Any thoughts people ?
>
> Thanks & Regards
> Kevin
>
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