02-27-2008 12:36 PM - edited 03-05-2019 09:25 PM
Been a while since I have worked with hybrid mode. I have a port 3/10 that is only allowing Vlans 99 & 251 over it. I need to add to that port Vlan 201
Is is as simple as the following command:
set trunk 3/10 on dot1q 99,201,251
or do I need manually do the below:
clear trunk 3/10 1-98,100-200,202-250,252-4094
the original trunk cmds in the config were:
---------------
clear trunk 3/10 1-98,100-250,252-4094
set trunk 3/10 on dot1q 99,251
--------------
will adding vlan201 to the trunk cause a renegotiate of the trunk between the switch endpoints?
I have 100 servers connected to this trunk and 1 minute of downtime would not be good.
Thanks
02-27-2008 01:02 PM
Hi,
Adding a vlan to an existing trunk wont negotiate trunking.
The Trunking negotiation is done at the Switch starts up based on the Switch port Operational mode using DTP.
In your case, you have already trunk setup using IEEE 802.1Q standard, it wont change the operational mode of the port when you add any VLAN.
HTH
Mohamed
02-27-2008 01:41 PM
yes it is that simple command:
"set trunk 3/10 on dot1q 201"
This will not renegotiate the trunk as it is already setup. Its more of a prune on the trunk to allow/disallow vlans across.
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