[cisco-voip] Nortel LAN switches and Cisco IP Phones

[Craig M Staffin]

I know this is going to open a whole long discussion BUT

Is having your phone traffic seperated really needed.  Is QOS on a LAN 
really actually needed.  I mean come on we all have atleast gig uplinks I 
want to see where the buffers on the switch get full enough to slow down 
traffic over the 20ms jitter buffer on a local LAN segment or drop 
packets.

Now over the WAN thats somewhere that QOS definatly needs to be involved.

Just my thoughts
Craig





Tim Medley <tim.medley at moxieent.com> 
Sent by: cisco-voip-bounces at puck.nether.net
01/19/2007 11:21 AM

To
"cisco-voip at puck-nether.net" <cisco-voip at puck.nether.net>
cc

Subject
[cisco-voip] Nortel LAN switches and Cisco IP Phones






A customer just posed a question to me and I couldn't find anything on 
google.

Are there any interoperability issue with using Nortel LAN switches with 
Cisco IP Phones. The CIO for this customer is looking to save some $ by 
using non-cisco ip phones. 

My first thoughts were that the Cisco switch provides two things, power 
and voice vlan support. The nortel switches do support 802.3af so power 
should not be an issue. But since CDP is a cisco proprietary protocol, the 
nortel switches won't support CDP which means that the phones will not 
automatically use the voice vlan for voice traffic. This just means that 
the customer would have to do something else to segregate and QoS the 
voice traffic such as an acl.

Are there any other considerations?


tm
 
Tim Medley
Moxie Enterprises
Email: tim.medley at moxieent.com
Phone: (704) 905-4604
 


_______________________________________________
cisco-voip mailing list
cisco-voip at puck.nether.net
https://puck.nether.net/mailman/listinfo/cisco-voip

-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://puck.nether.net/pipermail/cisco-voip/attachments/20070119/9e9ec2e4/attachment.html