Migration to Port-Channel from 'hard coded' 100BaseX Trunk
I need to increase the bandwidth of a trunk link between a 7513 and 6509, currently there are 23 subinterfaces under a single Fast Ethernet interface which is trunked using ISL to the 6509. Each sub-interface is configured with a HSRP address used for inter VLAN routing.
I intend to configure a Port-Channel and duplciate the sub-interface configuration. While the current Fast Ethernet trunk is active.
My question is can two seperately configured trunk links exist on a single device? Ideally I'd create the Port Channel and assign spare IP addresses to the sub-interfaces and when the time comes to swap to this new trunnk link just move the HSRP addresses across.
Re: Migration to Port-Channel from 'hard coded' 100BaseX Trunk
May I suggest a procedure to achieve this?
First of all, you will have downtime during the switchover.
I would use a script to:
1: remove the ip adresses from the FE
2: create the port channel
3: assign the same IP's to the port channel
4: make the existing FE part of the channel
Paste this script to the console. After this it should be possible to add a second link to the channel. With careful preparation (i.e. a script with no errors) you can make the switch witin a minute. In my opinion, this is the safest method.
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