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Frequent Contributor I

Aruba 8.x - Cluster on L3 issue

Hi

 

Maybe it is simple, but I cannot find a good example and info.

 

I try to configure L3 cluster between two MC 7205 - they are in seperate DCs and seperate networks. 

I have configured Cluster group under managed devices level and then added each physical controller to this group. 

 

When I issue:

show lc-cluster group-membership

I see that self is in ISOLATED state and state of peer is alternating from 

SECURE-TUNNEL-NEGOTIATING

DISCONNECTED and 

CONNECTED FROM SELF DISCONNECTED FROM PEER

 

In error logs I have 

<ERRS> |cluster_mgr|  cluster_gsm_delete_target_from_cluster_rep_key, Target 10.0.200.250 not present in cluster_rep_key

 

I suppose that I have missed a key somewhere, but I don't know where

 

Maybe someone had similar issue ?

Any help will be ok

 

regards 

 

Karol

 

Guru Elite

Re: Aruba 8.x - Cluster on L3 issue

A layer 3 cluster is not a feature...it is a drawback....  It indicates when a layer 2 cluster is misconfigured.  It doesn't really serve a purpose.  If an AP in a layer 3 cluster fails over to a second controller, it will deauth all of the clients on the AP and disconnect their sessions before failing over.  Again, it doesn't make sense, and don't configure it.  You might as well have failover between two local controllers that do not share the same layer 2 client VLAN.


*Answers and views expressed by me on this forum are my own and not necessarily the position of Aruba Networks or Hewlett Packard Enterprise.*
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Frequent Contributor I

Re: Aruba 8.x - Cluster on L3 issue

Hi

 

Thanks cjoseph for the replay 

 

ok, so what would You recomend for L3 connections between controlers ? LMS/Backup LMS or something more ?

I have made assumption that client can be deauth and disconnected. It is only for distatsrer recovery situation 

 

Karol 

 

Guru Elite

Re: Aruba 8.x - Cluster on L3 issue

Backup lms


*Answers and views expressed by me on this forum are my own and not necessarily the position of Aruba Networks or Hewlett Packard Enterprise.*
ArubaOS 8.4 User Guide
InstantOS 8.3 User Guide
Airheads Knowledgebase
Airheads Learning Videos
Aruba Central Documentation
Sign up for Security Alerts
Aruba Technical Webinars
Frequent Contributor I

Re: Aruba 8.x - Cluster on L3 issue

ok

 

thanks 

 

Karol

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