[c-nsp] vlan configuration for video system

[Dan]

Thanks for your reply.

We are not implementing a voip system yet but if we do the phones we buy 
will support cdp.  So that would be fine. 

So from what I gather, our video system has to be able to mark packets 
with a dscp value, which it does.  Separate Vlan's are recommended.

So the only thing I need yet is a way for the switch to put a video 
device into the "video" vlan when its plugged in.  Is there a way to do 
this with acl's?  Would specified address help?

The quality across the wireless links has been taken care of.  That is 
not a concern to me.

Thanks,
Dan.


Nick Griffin wrote:
> The only mechanism I know of on a switch to be able to determine what 
> vlan a port should be assigned to is the communication between a cisco 
> phone and switch utilizing CDP. There are of course other external 
> options, but thats more along the lines of security and Cisco ACS. I 
> wouldn't imagine the capability or the need to trunk to a video 
> system. Typically the video systems will set DSCP values for their 
> control and video traffic which you would configured your switch to 
> "trust". If for some reason they wouldn't mark they data, you would 
> use an extended acl to identify the traffic and set the DSCP value 
> accordingly. Some systems also use RSVP to request the reservation 
> from the network. I would recommend separate voice video and data 
> vlans to allow the different levels of QoS required for each 
> respective application. I would have a more of a concern with being 
> able to control quality across those wireless links if video will be 
> running across them.
>
> HTH,
>
> Nick Griffin, CCIE #17381
>
> On 4/12/07, *Dan Letkeman* <dan at technc.com <mailto:dan at technc.com>> 
> wrote:
>
>     Thats what I was afraid of having to do.  Its polycom vsx 6000's
>     that we are
>     using.  They do have the capability of marking packets with dscp
>     so I could
>     do that.  I guess without having vlan tagging on the polycom
>     equipment there
>     is no way for the switch to know what vlan that unit is supposed
>     to be on?
>     Dan
>
>
>
>     -----Original Message-----
>
>     From: "Voll, Scott" <Scott.Voll at wesd.org <mailto:Scott.Voll at wesd.org>>
>
>     To: "Dan" <dan at technc.com <mailto:dan at technc.com>>,
>     <cisco-nsp at puck.nether.net <mailto:cisco-nsp at puck.nether.net>>
>
>     Date: Thu, 12 Apr 2007 14:54:53 -0700
>
>     Subject: RE: [c-nsp] vlan configuration for video system
>
>
>
>
>     What kind of video system?  Does it mark packets with DSCP / IP
>     Prec by
>
>     default?
>
>
>
>     My guess is that if your going to make a separate video vlan, you
>     will
>
>     have to assign the port to the video vlan manually.  ( more Management
>
>     :-(
>
>
>
>     Scott
>
>
>
>     -----Original Message-----
>
>     From: cisco-nsp-bounces at puck.nether.net
>     <mailto:cisco-nsp-bounces at puck.nether.net>
>
>     [mailto:cisco-nsp-bounces at puck.nether.net
>     <mailto:cisco-nsp-bounces at puck.nether.net>] On Behalf Of Dan
>
>     Sent: Thursday, April 12, 2007 1:26 PM
>
>     To: cisco-nsp at puck.nether.net <mailto:cisco-nsp at puck.nether.net>
>
>     Subject: [c-nsp] vlan configuration for video system
>
>
>
>     Hello
>
>
>
>     We are implementing a video conferencing system on our system and
>     I was
>
>     wondering  if anyone had recommendations for how to setup the
>     vlan's for
>
>
>
>     data/video/voice.
>
>
>
>     We currently have one 3560 in each of the buildings and 2-10 2960's
>
>     behind the 3560.  All of the buildings are connected via wireless
>
>     bridges.
>
>
>
>     Should I create a separate vlan for voice, video, data, and management
>
>     in each building?
>
>
>
>     If I do create a separate vlan for each piece, how do the switches
>     know
>
>     how to put say a video device on the video vlan when its connected on
>
>     the switch?
>
>
>
>     If there are any other suggestions please let me know as I'm open
>     to any
>
>
>
>     options so I can make this system easy to manage and work well.
>
>
>
>     Thanks,
>
>     Dan.
>
>
>
>     _______________________________________________
>
>     cisco-nsp mailing list  cisco-nsp at puck.nether.net
>     <mailto:cisco-nsp at puck.nether.net>
>
>     https://puck.nether.net/mailman/listinfo/cisco-nsp
>     [https://puck.nether.net/mailman/listinfo/cisco-nsp]
>
>     archive at http://puck.nether.net/pipermail/cisco-nsp/
>     [http://puck.nether.net/pipermail/cisco-nsp/]
>     _______________________________________________
>     cisco-nsp mailing list   cisco-nsp at puck.nether.net
>     <mailto:cisco-nsp at puck.nether.net>
>     https://puck.nether.net/mailman/listinfo/cisco-nsp
>     archive at http://puck.nether.net/pipermail/cisco-nsp/
>
>