Link Aggregation to Cisco Switch

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L1 Bithead

Link Aggregation to Cisco Switch

How would I go about creating a link aggregation from a Cisco Cat4500-series switch to a PA-5020?  I'm shooting for having multiple links between the two devices for redundancy (and load-balancing too, if possible).

What would I have to do on the Cisco side of the aggregated link?  What about the PA-5020 side of the link?


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L2 Linker

You would configure the interfaces on the Cisco in an Cisco EtherChannel group.

Here is a great article on that:

http://www.ciscozine.com/2008/11/04/configuring-link-aggregation-with-etherchannel/

Next you would set up the corresponding interfaces on the Palo as a Aggregate Interface Group.

The details on how to do that can be found on page 98 & 99 of the PA-4.1_Administrators_Guide.pdf

Cisco best practice is to use an even number of interfaces... ei: 2 or 4 or 6 or 8 1000Mbps ports.

If you have SmartNet support on the Cat4500, Cisco TAC should be able to help you set it up no problem.

View solution in original post


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Highlighted
L2 Linker

You would configure the interfaces on the Cisco in an Cisco EtherChannel group.

Here is a great article on that:

http://www.ciscozine.com/2008/11/04/configuring-link-aggregation-with-etherchannel/

Next you would set up the corresponding interfaces on the Palo as a Aggregate Interface Group.

The details on how to do that can be found on page 98 & 99 of the PA-4.1_Administrators_Guide.pdf

Cisco best practice is to use an even number of interfaces... ei: 2 or 4 or 6 or 8 1000Mbps ports.

If you have SmartNet support on the Cat4500, Cisco TAC should be able to help you set it up no problem.

View solution in original post

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