04-25-2017 04:10 AM - edited 07-05-2021 06:55 AM
Hi, I need help to get a HA SSO setup running.
I try to setup HA with SSO with 2x WLC 5520 version 8.2.151.0. (RTU Evaluation License by now)
- Network Connection beween the WLC5520: LAG with a tagged vlan. (because of design Guide topology seems to be supported, no physical redundancy port needed)
- configured primary/secondary role and redundancy IP's on both units (I don't know wich one has the HA-SKU, not shown)
config interface address redundancy-management <local-ip> peer-redundancy-management <peer-ip>
config redundancy unit primary
config redundancy mode sso
- following redundancy states on Primary / Secondary WLC:
(Primary) >show redundancy detail
Redundancy Management IP Address................. 1.1.1.25
Peer Redundancy Management IP Address............ 1.1.1.23
Redundancy Port IP Address....................... 169.254.250.25
Peer Redundancy Port IP Address.................. 169.254.250.23(Secondary) >show redundancy detail
Redundancy Management IP Address................. 1.1.1.23
Peer Redundancy Management IP Address............ 1.1.1.25
Redundancy Port IP Address....................... 169.254.250.23
Peer Redundancy Port IP Address.................. 169.254.250.25
(Primary) >show redundancy summary
Redundancy Mode = SSO ENABLED
Local State = ACTIVE
Peer State = UNKNOWN - Communication Down
Unit = Primary
Unit ID = F8:0B:CB:D6:0C:25
Redundancy State = Non Redundant
Mobility MAC = F8:0B:CB:D6:0C:25
BulkSync Status = Pending
(Secondary) >show redundancy summary
Redundancy Mode = SSO ENABLED
Local State = MAINTENANCE
Peer State = UNKNOWN - Communication Down
Unit = Secondary
Unit ID = F8:0B:CB:D6:06:73
Redundancy State = Non Redundant
Mobility MAC = F8:0B:CB:D6:06:73
Maintenance Mode = Enabled
Maintenance cause= Peer RP is not reachable or Hardware model/Software version mismatch
Solved! Go to Solution.
04-28-2017 02:26 AM
Hello Alois,
Yes you need the RP in order to build SSO.
And it has to be Layer 2 between the 2 RPs, so either directy connected or through a VLAN.
Alex-
04-25-2017 04:52 AM
Hello,
looks like you are missing the recommended connection HA connection between the two controllers.
Here re is the documents for HA.
Note: A direct physical connection between Active and Standby Redundant Ports is highly recommended. The distance between the connections can go up to 100 meters at per Ethernet cable standards.
http://www.cisco.com/c/en/us/td/docs/wireless/controller/technotes/8-1/HA_SSO_DG/High_Availability_DG.html#pgfId-43215
I hope this helps
04-25-2017 06:16 AM
Hi,
Thank's for the info.
I have connected my controllers like in the VSS-Pair deployment. So no RP port ist connected.
http://www.cisco.com/c/en/us/td/docs/wireless/controller/technotes/8-1/HA_SSO_DG/High_Availability_DG.html#pgfId-196171
I also checked cisco live presentation slides (BRKEWN-3014), no info on RP port needed.
I think this would be a supported Architekture ? Do I really need a RP port anyway ?
Best regards
Alois
04-26-2017 11:15 AM
Seems with any HA setup I need a connected RP port. Found by more carefully reading Design Guide, Deployment Guide and BRKEWN-3014.
Will try to get RP ports connected now.
04-28-2017 02:26 AM
Hello Alois,
Yes you need the RP in order to build SSO.
And it has to be Layer 2 between the 2 RPs, so either directy connected or through a VLAN.
Alex-
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