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HP 2524 and Cisco 2950 trunk

Michal Margula
Occasional Visitor

HP 2524 and Cisco 2950 trunk

Hello!

I need to set up a trunk between HP 2524 and Cisco Catalyst 2950.

In HP 2524 i go to Port settings and set Trk1 for port 23 and 24, and set LACP. Then I save it and reload.

On Cisco I do:

interface FastEthernet0/23
channel-group 1 mode active
!
interface FastEthernet0/24
channel-group 1 mode active
!

Then save it and reload. Is it enough to have LACP working? How to check if it is OK?
4 REPLIES
Sergej Gurenko
Trusted Contributor

Re: HP 2524 and Cisco 2950 trunk

You can fing samle configuration and cisco side trobleshooting info here, at ETHERCHANNEL Configuration Examples ttp://www.cisco.com/en/US/tech/tk389/tk213/tech_configuration_examples_list.html
"Configuring EtherChannel and Trunking Between Catalyst 2950 and 2948G-L3/4908G-L3 Switches" is good one.
Michal Margula
Occasional Visitor

Re: HP 2524 and Cisco 2950 trunk

I did it other way. Left default configuration for HP, and set up on Cisco as mentioned before. Working fine. HP shows Dyn1 trunk on two ports (from show lacp). That is what I needed.

Example on HP website helped me, but it was describing two HPs.
Regnar Bang Lyngsø_2
Frequent Advisor

Re: HP 2524 and Cisco 2950 trunk

Probably you know, but anyway:

On the Cisco side, IOS has some commands for checking the LACP trunk as well:

show etherchannel port-channel
show etherchannel channelgroup_number detail

See <>

Also bear in mind that you can't do static VLAN configuration on dynamic trunks.
Michal Margula
Occasional Visitor

Re: HP 2524 and Cisco 2950 trunk

At the moment I don't need VLANs, so it is no problem at all.

By the way - to change dynamic trunks into static i need to assign those two ports to Trk1 for example?

Thanks for Cisco commands, I knew them :-).