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Need some help with EAPS rings design


Hi, I need some help with EAPS rings design. My network is working now as the next image shows.



In the last months we have implemented some redundancy links but not yet with EAPS rings, and now I want to do it because we have many clients that we give to them Layer 2 service and EAPS would help us a lot with the service quality. The physical connections are like the next image I show.



In the topology I show some switches BDCOMs that support also EAPS rings,I made a test that it works with Extremes but if any of you have experienced please share it with me.

I have designed other rings and I have divided Original ring 3 into ring 3 and ring 13, changing some Licenses of course. I showed this design int the last picture.

I havent found exact information about limitation of EAPS, I remember that I received a training and the teacher told us of a specific topology that EAPS cant work in, I dont remember how it was, so I want to ask you about the possibility of implementing the topology I am planning, , especially RING 8 and RING 9, If not possible I cant ask to change the liks to connect to another switch. All the switchs are located in different places.



Thanks in advance.

6 replies

Userlevel 5
This is an interesting design.
There are a couple of rules that apply and what we need to know is where you place the "master secondary ports" for all the separate rings.
The main blocking issue is the fact that there can be up to two shared ports per switch.
In switch SW-2, I count 5 shared ports.
http://documentation.extremenetworks.com/exos/exos_21_1/eaps/r_eaps-shared-port-configuration-rules....

The following page will show you the allowed topology possibilities:
http://documentation.extremenetworks.com/exos/EXOS_21_1/EAPS/c_additional-common-link-topology-examp...

I hope that this will help you a bit in the right direction.
Ron Huygens wrote:

This is an interesting design.
There are a couple of rules that apply and what we need to know is where you place the "master secondary ports" for all the separate rings.
The main blocking issue is the fact that there can be up to two shared ports per switch.
In switch SW-2, I count 5 shared ports.
http://documentation.extremenetworks.com/exos/exos_21_1/eaps/r_eaps-shared-port-configuration-rules....

The following page will show you the allowed topology possibilities:
http://documentation.extremenetworks.com/exos/EXOS_21_1/EAPS/c_additional-common-link-topology-examp...

I hope that this will help you a bit in the right direction.

Hi Ron thankf for information, I have made a version 2 of my design where I have made new connectiont that I think are possible, removed some shared ports and delete R13 and show information about Masters, Controllers and Partners .

My doubt is about RING 6 (SW2-SW3-SW4-SW13) it will works fine? Or Id better ask for new connection with Sw5 or SW3 to make a new Ring?, apart from this, the rest of the topology is it ok?

Userlevel 5
Ron Huygens wrote:

This is an interesting design.
There are a couple of rules that apply and what we need to know is where you place the "master secondary ports" for all the separate rings.
The main blocking issue is the fact that there can be up to two shared ports per switch.
In switch SW-2, I count 5 shared ports.
http://documentation.extremenetworks.com/exos/exos_21_1/eaps/r_eaps-shared-port-configuration-rules....

The following page will show you the allowed topology possibilities:
http://documentation.extremenetworks.com/exos/EXOS_21_1/EAPS/c_additional-common-link-topology-examp...

I hope that this will help you a bit in the right direction.

I think that this should work. I didn't checked all of the possible options but at first sight I now don't see any rule violations.
Make sure that none of the secondary ports point to an EAPS shared ports.
Basically Ring 6 is similar to Ring 5 and 8 with only one extra switch.
I see a brown dotted line between switch 2 and 5. I think that should no be there, right?
If possible, before deploying this, I should say that you perform a good couple of different fail-over tests to validate the different scenarios.
Userlevel 6
Ron Huygens wrote:

This is an interesting design.
There are a couple of rules that apply and what we need to know is where you place the "master secondary ports" for all the separate rings.
The main blocking issue is the fact that there can be up to two shared ports per switch.
In switch SW-2, I count 5 shared ports.
http://documentation.extremenetworks.com/exos/exos_21_1/eaps/r_eaps-shared-port-configuration-rules....

The following page will show you the allowed topology possibilities:
http://documentation.extremenetworks.com/exos/EXOS_21_1/EAPS/c_additional-common-link-topology-examp...

I hope that this will help you a bit in the right direction.

Hi Edison, are you planning to use a shared vlan (data/protected vlan) among all those EAPS Rings?
Ron Huygens wrote:

This is an interesting design.
There are a couple of rules that apply and what we need to know is where you place the "master secondary ports" for all the separate rings.
The main blocking issue is the fact that there can be up to two shared ports per switch.
In switch SW-2, I count 5 shared ports.
http://documentation.extremenetworks.com/exos/exos_21_1/eaps/r_eaps-shared-port-configuration-rules....

The following page will show you the allowed topology possibilities:
http://documentation.extremenetworks.com/exos/EXOS_21_1/EAPS/c_additional-common-link-topology-examp...

I hope that this will help you a bit in the right direction.

Ron, yes that brown dotted line shouldnt be there, I correct that and I add a new ring. I show the picture under this lines.



Hi Henrique only ring 13 and Ring 9 are for particular clients , so if it's necessary and possible I would use protecteds vlan among all the other rings.

So I going to make tests, I will try to share my experience.
Userlevel 6
Ron Huygens wrote:

This is an interesting design.
There are a couple of rules that apply and what we need to know is where you place the "master secondary ports" for all the separate rings.
The main blocking issue is the fact that there can be up to two shared ports per switch.
In switch SW-2, I count 5 shared ports.
http://documentation.extremenetworks.com/exos/exos_21_1/eaps/r_eaps-shared-port-configuration-rules....

The following page will show you the allowed topology possibilities:
http://documentation.extremenetworks.com/exos/EXOS_21_1/EAPS/c_additional-common-link-topology-examp...

I hope that this will help you a bit in the right direction.

Hi Edison, yes it's possible. I would recommend you to use a LAG (if possible) for all shared ports. That will minimize any controller action if the common-link fails since you would have a LAG with 2 ports.

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