pruning vlan 1
What would happen to control protocols such as cdp,dtp, etc that use vlan 1 by default, if the vlan is pruned manually?
For example, cisco doesn't allow you to include vlan 1 in prune-eligible list on trunks, but what if you do it manually, with 'switchport trunk allow vlan' command? What effect would that have for protocols that use vlan 1?
thx for any insight
For example, cisco doesn't allow you to include vlan 1 in prune-eligible list on trunks, but what if you do it manually, with 'switchport trunk allow vlan' command? What effect would that have for protocols that use vlan 1?
thx for any insight
Comments
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networker050184
Mod Posts: 11,962 Mod
They continue to operate on VLAN 1 between the switches but no user traffic is allowed on VLAN 1.An expert is a man who has made all the mistakes which can be made. -
acidsatyr
Member Posts: 111
So even if it is not "allowed" these control protocols continue to use vlan 1?
Thanks!