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.

New Member

MPLS over 802.1q subinterfaces?

Hello.

I have a router 7500 with 12.0(22)S IOS with MPLS enabled over 802.1q vlans and it seems to work fine...

but I have read in Cisco site that only IOS 12.2.X support cef in 802.1q vlans and, on the other hand CEF is required for MPLS, then , the questions ...

Is Cef in 802.1q vlans supported in 12.0(22)S IOS ?

Do I need IOS 12.2X to use MPLS over 802.1q on 7500 routers ? ,

Can I use 12.0(22)S if it seems to work fine ?

Thanks in advance

1 REPLY
Silver

Re: MPLS over 802.1q subinterfaces?

CEF for IP over 802.1q vlans is supported on IOS 12.2 (13) and a few other releases. You can use the Feature Navigator to check which IOS supports the features that you require.

http://www.cisco.com/cgi-bin/Support/FeatureNav/FN1.pl?HStartForm2=True&Q2Submit=CONTINUE&HFeatOption=547&HFeatSelected=547

Since 12.0 supports basis CEF/dCEF the config seems to work. I don't see a need to upgrade the Routers if it is working

108
Views
0
Helpful
1
Replies