Re: ip igmp snooping but poor performance

From: Aamir Aziz (aamiraz77@gmail.com)
Date: Sat Aug 12 2006 - 16:51:09 ART


well basically these are video streams sent my one server and recieved by
one clients, there are like 10 servers and 10 clients, by poor performance i
mean choppy video.

Thanks

On 8/11/06, Jordan Gottlieb <thelieber@gmail.com> wrote:
>
> How big is this vlan (how many clients?) What is the percentage of
> traffic that is unicast-unkown or broadcast? If it is not high than you
> will probably not get much out of segregating onto two different VLANs.
> What do you consider to be poor performance? What type of application are
> we talking about? Does unicast traffic perform at the expected level of
> performance using the existing config?
>
> On 8/9/06, Aamir Aziz <aamiraz77@gmail.com> wrote:
>
> > Hi there ppl,
>
> I have asked this before but with discussion it was clear that in 2950 ip
> igmp snooping is enabled by default but still the performance is very poor
> between the multicast sender and receiver, it seems there is a lot of
> unknown broadcast which is i guess normal since unknown unicast,
> multicast,
> and broadcast frames get sent to all ports in the vlan (except the one it
> was received on). Anyway I have two 2950 switches with multicast sender on
>
> one switch and receiver on the other (no vlans). Here what I suggest,
> please
> comment.....
>
> To bring in a layer 3 switch 3550, for each server and client make a
> seperate vlan, inter vlan routing will be done with layer 3 switch (this
> is
> required since the PC's need to communicate with each other) and volla
> multicast & broadcast traffic from one server to its client will be
> limited.
>
> What do you think people will this work? any other suggestions...
>
> Thanks
>
> Aamir
>
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