Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. If you'd prefer to explore, try our test area to get started. And see here for current known issues.

Si
New Member

Data network for VoIP traffic

Hi,

Currently work on multiple LANs designed for data. 6509 cores linked together using L2 POs. All HSRP/ OSPF Adj are via these links.

Ive recenly read ideally VoIP needs L3 connectivity between cores, and distribution layer. L3 dist is a non starter but would it be better design to add L3 Port channels also between cores? If i didnt, what negative problems could occur?

Many thanks

S

4 REPLIES
Hall of Fame Super Silver

Data network for VoIP traffic

L2 or L3 is fine, L3 eliminates convergence with STP hence the recommendation.

HTH,

Chris

Si
New Member

Data network for VoIP traffic

Thanks Chris, thats good to know. I asked the same on the Learning network and was advised L3 from the Distribution

Hall of Fame Super Silver

Data network for VoIP traffic

L3 is prefered, L2 is fine.

HTH, please mark the question as answered unless you have further questions.

Chris

Si
New Member

Data network for VoIP traffic

Thanks Chris, final question. Im hoping to use class c vlans for voip. Would having the vlan scattered around the lan cause problems?

We are deploying 48 port POE around campus and configuring ports based on how many address are free in that subnet, then rolling onto the next subnet if full.
Thanks

S

152
Views
0
Helpful
4
Replies