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

Layer 2 tunnelling protocol question

Hi All,

I am studying L2TP. I think that if I use dot1q tunnel, I need not to tunnel CDP and STP, I think that because the data in the dot1q is tunnel. Is that right? If I am wrong, please correct me. Thank You!

Waimen

1 REPLY
Bronze

Re: Layer 2 tunnelling protocol question

An 802.1Q tunnel does not transport STP for tunneled VLANs (only the native VLAN STP is used). CDP, PAgP, VTP, and GVRP are not tunneled either. Here is a link with some helpful information on Dot1q tunneling:

http://www.cisco.com/warp/customer/cc/so/neso/meso/dotn_wp.htm

86
Views
0
Helpful
1
Replies