Comments on: LACP Configuration Examples (Part 2)

By: LACP Configuration Examples (Part 4)

LACP Configuration Examples (Part 4) — Mon, 25 Nov 2013 20:40:03 +0000

[…] how to connect an Avaya Ethernet Routing Switch 8600 to an Avaya Ethernet Switch 470, an Avaya Ethernet Routing Switch 8600 Cluster to an Avaya Ethernet Switch 470 via SMLT, an Avaya Ethernet Routing Switch 8600 Cluster to a HP GbE2c(Blade Technologies) via SMLT, and even […]

By: Michael McNamara

Michael McNamara — Fri, 06 Sep 2013 03:23:43 +0000

In reply to Chris Goddard. That would be a question for someone familiar with Aruba Wireless Mobility Controller... You've posted to a blog covering Avaya Ethernet Routing Switches.

By: Chris Goddard

Chris Goddard — Tue, 03 Sep 2013 17:38:27 +0000

How would this configuration differ if dealing with an Aruba wireless 3200 controller (port-channel) instead of the 5520? There is a LACP configuration tab, but I don’t see the relation since the LACP group assignment only has 0-7 available.

By: Michael McNamara

Michael McNamara — Thu, 18 Oct 2012 00:15:02 +0000

In reply to Joaquin.

I would probably refer to the Cisco interoperability guide but I’ve heard that MLT and PC are compatible. You just need to be careful about STP.

http://blog.michaelfmcnamara.com/2011/01/802-1q-vlan-tagging-on-a-cisco-catalyst-3750-e/
http://blog.michaelfmcnamara.com/2011/06/avayas-multilink-trunk-and-spanning-tree-protocol/

Good Luck!

By: Joaquin

Joaquin — Wed, 17 Oct 2012 14:47:11 +0000

It turns out that the Cisco Wireless LAN Controllers, when in LAG mode, do not support LACP on the upstream device (this from opening a Cisco TAC case). According to Cisco, the upstream switch should be configured with an EtherChannel, which is the same thing as a static PortChannel I believe, please correct me if I am wrong. As for connecting to an Avaya switch, unofficially from Cisco, an MLT or SMLT (no lacp) should be used.

By: Joaquin

Joaquin — Thu, 27 Sep 2012 15:47:29 +0000

Hello and thanks for the quick response. I did in fact follow the example (part2) and it is that which did not work. I am running an IST between the peers and have several SMLTs up and running. I can send you my config if you like, please let me know.

By: Michael McNamara

Michael McNamara — Thu, 27 Sep 2012 00:38:20 +0000

In reply to Joaquin. Hi Joaquin, You should be able to use LACP to make the bond 2 or more ports between the Cisco Wireless LAN controller and the ERS 8806s. If you are already utilizing IST/SMLT in your pair of ERS 8806s then you can utilize LACP over SMLT to make the connections between both core switches and your Cisco Wireless LAN Controller. You can find an example of how to configure LACP over SMLT in this post. Good Luck!

By: Joaquin

Joaquin — Tue, 25 Sep 2012 17:05:15 +0000

Hello,
I tried to implement this from a pair of 8806s running 7.1.1.0 to a cisco Wireless Controller, model AIR-CT5508-K9 running 7.3.101.0 and in LAG mode, no luck however. Should this work or should I be running straight MLT/SMLT to the controller? Any insight would be appreciated,

Thank You,
-JA-

By: Michael McNamara

Michael McNamara — Tue, 06 Mar 2012 02:22:25 +0000

In reply to Dnicks.

Hi Dan,

It can be any MAC address but I will generally pick the base MAC address of one of the switches. The idea here is that both switches need to be configured with the same MAC address. You can find the base MAC address from the output of a “show tech”. If you look at the output from a “show lacp info” you’ll see that there’s a SystemId and a SmltSystemId. The SmltSystemId needs to be set the same on both switches.

Cheers!

By: Dnicks

Dnicks — Mon, 05 Mar 2012 15:31:05 +0000

Hi Michael,

With regards to the LACP identifier or the smlt-sys-id you listed, Where does that MAC address come from or where would I find it?

ERS8600-A
config lacp smlt-sys-id 00:01:81:28:84:00
config lacp enable
ERS8600-B
config lacp smlt-sys-id 00:01:81:28:84:00
config lacp enable

Great article and keep up the good work!

Thanks,
Dan