[c-nsp] Stopping VTP on a specific port

[Arda Balkanay]

hi ,
does QinQ make sense ?
make switchport mode dot1q tunnel and assign a vlan (access vlan X as outer
vlan) and disable l2protocol tunnelling (to not carry cdp, stp like
information at customer vlans, you may also partially block l2 protocols)
if you are at the middle of a L2 point to point service QinQ can make sense
this way.
If you are terminating vlans which comes via trunk of customer you will need
special hardware (like 7600 and ES20 or SIP400) to terminate QinQ at ip
interface.


On Wed, Mar 11, 2009 at 6:25 PM, <A.L.M.Buxey at lboro.ac.uk> wrote:

> Hi,
> > Needs to be trunk... How do I block the MAC on a trunk? Is that possible?
>
> regarding port ACLs (of which MAC ACLs are one of:
>
> to quote cisco press "When applied to a trunk port, the ACL filters traffic
> on all VLANs present on the trunk port. When applied to a port with voice
> VLAN, the ACL filters traffic on both data and voice VLANs"
>
> http://www.ciscopress.com/articles/article.asp?p=1181682&seqNum=4
>
> alan
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