topic RE: EAPS - MLAG and Cisco port-channel in ExtremeSwitching (EXOS/Switch Engine)

EAPS - MLAG and Cisco port-channel

Sebastian_Rojas — Sat, 13 Jan 2018 02:08:00 GMT

Hello all,

recently we have a problem with a trunk interfaces and tagged interfaces.
so i decide to take a new option of the design, but a co worked told me that is not posible this kind of design because he said to me that you cannot have a MLAG and EAPS in the same device, so before making anything in production or lab i want to know your experience if anyone of you made this kind of topology.

RE: EAPS - MLAG and Cisco port-channel

Patrick_Voss — Sat, 13 Jan 2018 02:16:00 GMT

It is not recommended to have a l2 redundancy protocol enabled on a MLAG port. In this scenario you can you use EAPS as long as the EAPS master is not one of the MLAG peers. This way the ISC will never be blocked.

RE: EAPS - MLAG and Cisco port-channel

Bin — Sat, 13 Jan 2018 02:16:00 GMT

Hi Sebastian,

Please our "MLAG Limitations and Requirements"
https://documentation.extremenetworks.com/exos_22.2/exos_21_1/slots_and_ports/r_limitations-and-requ...

MLAG ports cannot be configured to be EAPS ring ports.
Configuration of the ISC port as an EAPS blocked port is disallowed

RE: EAPS - MLAG and Cisco port-channel

Sebastian_Rojas — Sat, 13 Jan 2018 02:16:00 GMT

Helo Bin, i read the doc, so i have to make another link between the devices to run the ISC connection without adding to the eaps ring and only tagging the l3 vlan for control traffic.

RE: EAPS - MLAG and Cisco port-channel

faste — Sat, 13 Jan 2018 06:09:00 GMT

I’ve been running this setup for several years now. No troubles.

RE: EAPS - MLAG and Cisco port-channel

Sebastian_Rojas — Sat, 13 Jan 2018 06:09:00 GMT

Hello Faste, i'm going to make a lab the next wednesday, thanks for your opinion!

RE: EAPS - MLAG and Cisco port-channel

faste — Sat, 13 Jan 2018 06:09:00 GMT

Enable sharing port 25 grouping 25-29 lacp algoritm address-based L3_L4 on both switches
Enable mlag port 25 peer xxx id 1
(Port 25 is the port(group) that is connected to the cisco switch)
ISC link duplicated as the sketch shows here and it's also the eaps-link between the two switches.