[e-nsp] BlackDiamond 8806 + Summit 450 MULTICAST

[Julien Couturier]

Hi Christof,

Is IGMP snooping enabled in VLAN 50 ? If so, check that you have an IGMP
querier enabled in this VLAN. Otherwise IGMP snooping entries will age out
after 260 sec (host timeout) and no mcast frames will be forwarded to these
ports. Maybe this is what you are experiencing here.

Alternatively, you can try to increase the IGMP snooping host timeout (this
might be a simpler solution in your context):
    configure igmp snooping timer <router_timeout> <host_timeout> {vr
<vrname>}

Hope this helps.

Julien

Le 26 janvier 2012 09:23, Huettner, Christof <
Christof.Huettner at megatech-communication.de> a écrit :

>  Hello,****
>
> ** **
>
> have a strange problem.. i thougth, Multicast isnt really a problem in the
> same vlan. Ist by default activated?****
>
> ** **
>
> I have a touchpanel (KNX Touchpanel) connected to the BlackDiamond 8806 in
> VLAN 50. There is a Uplink (LACP, tagged all vlans) to the Summit 450. On
> the Summit there is a KNX/IP Router connected who takes the KNX commands..
> ****
>
> ** **
>
> On the KNX Touchpanel is a Timer configured, that every day at 11 pm, 4
> commands (multicast commands) are send to the summit 450 and the connected
> KNX/IP Router. Its a strange thing, in most case, the KNX Router gets only
> 2-3 commands… sometimes it works fine.. but in most cases, there are only 2
> commands who works..****
>
> ** **
>
> Ipmcforwarding is enabled.. maybe someone have same issues?****
>
> ** **
>
> Regards Chris****
>
> ** **
>
> *Christof Hüttner  |  Netzwerkspezialist  (Network Specialist)*****
>
> Fachinformatiker - Systemintegration
> *
> *MEGATECH communication GmbH
> Gewerbepark Leutzing 5+7  |  94508 Schöllnach  |  Germany
> tel +49 (9903) 9324-220  |  fax +49 (9903) 9324-200
> christof.huettner at megatech-communication.de
> www.megatech-communication.de ****
>
> **
>
>
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