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MLAG configuration

  • 2 July 2020
  • 6 replies
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Userlevel 1

Good evening, we are going to change an Exnterasys  S4 with 2 x590 plus 4 v400.

Now I have only one IP address configured.

The question is whether the whole core can have a single IP address as if it were a chassis or should I consider them different switches ?

thanks in advance

Giuseppe

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Best answer by Giuseppe Montanarella 27 July 2020, 10:03

Thanks to all. we used the second option, 2 X590 in MLAG, 4 V400 connected with 2 links to X590.

We connected also 5 X440 with 2 links in LACP ( X440 -LACP   -→    X590-MLAG ).

 

Giuseppe

 

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Userlevel 5
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Giuseppe,

It depends of what you want to achieve.

A lot of options are available to meet your own needs:

Mig

Userlevel 1

Thanks for your reply, the correct option is the second, but my question is if I will manage the system ( 2 x590 + 4 V400 ) as if it were one system with only one ipaddress ?

For example, If I want to configure the port 10 in core B I have to connect to ipaddress of core B or I can configure only one IP for all Switches ( like Stacking ) ?

Thanks

Giuseppe

 

Userlevel 5
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Giuseppe,

 

There is no correct or uncorrect option.

There are options that meet your needs better than others :wink:

If you stack them (option 1) you have one stack with one IP.

If you cluster them (option 2) you have two switches with two IPs.

 

The result depends on the level of redundancy you want to achieve vs. operational effort.

 

Mig

Userlevel 4

For example, If I want to configure the port 10 in core B I have to connect to ipaddress of core B or I can configure only one IP for all Switches ( like Stacking ) ?

 

If you go for the second option, then you have two single switches and therefor need to connect to the Switch where you want to configure a port. If you want to configure MLAG Ports and need the same config on the same port on both switches you can make use of the orchestration feature.

 

If you stack them (option 1) you have one stack with one IP.

I don’t think that stacking and VPEX is compatible? https://gtacknowledge.extremenetworks.com/articles/Q_A/Can-Extended-Edge-Switching-VPEX-and-stacking-be-enabled

Userlevel 5
Badge +1

Stefan,

You’re right, “As of 30.6: No, stacking cannot be enabled with VPEX enabled.”

Welld one

Mig

 

 

Userlevel 1

Thanks to all. we used the second option, 2 X590 in MLAG, 4 V400 connected with 2 links to X590.

We connected also 5 X440 with 2 links in LACP ( X440 -LACP   -→    X590-MLAG ).

 

Giuseppe

 

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