Catalyst 4503 + 3com 9000

[rpaolet]

I'm configuring a link aggregation between cat4503 and 3com 900,double link.

I use the ethernet channel because the 3com not use the trunk.I configuring the 2 fastethernet and create a port-channel,but the mac-address arrives from 1 port flapping in the 2 port and the stp dropping the traffic towards the host.

Can anyone help me?

Thanks

Regards

Roberto Paoletti

[robho]

Hi,

By default, it chooses PAgP to bundle the link. This is cisco proprietary. Please try using LACP.

For IOS,

http://www.cisco.com/univercd/cc/td/doc/product/lan/cat4000/12_1_19/config/channel.htm

-Robert

[rpaolet]

Hi Roberto,

thank for your response.

I have this release in my cat4503 :

cat4000-is-mz.121-12c.EW2.bin

and the model is :

cisco WS-C4503 (XPC8245) processor (revision 7)

and there isn't the LCAP command,i need upgrade the release to 12.1.19(EW).

I'm not sure to understand where i can download this release.

Can you help me ?

Thanks

Regards

Roberto Paoletti