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AireOS WLC in HA - RP ports and CDP

Scottie_Laforge
Level 1
Level 1

Hi All,

 

First time I have submitted a question to this forum so appreciate in advance if you can help. I have 2 questions.

 

First one, how can you know if the RP port is back to back or connected to the network via L2 with only remote access?

HA is definitely established, Active and Standby is showing and state is in SSO. I am assuming this is via L2 since the WLC are on different DC in different floors and the UTP cable won't be able to traverse more than 100m but I'd like evidence to back my assumptions. (AireOS v8.2)

- Do the RP ports participate in CDP neighbors?  I can only see the WLC uplinks from a cdp neigh command.

- Is there anything on the GUI or the Cli where I can determine back to back or L2?

 

 

Second question, the topology is a HSRP Active Standby Core with both WLCs in HA. From the CDP neigh run on both Cores I can see that the uplinks from each WLC are not equal and not dual homed. 

WLC-active has 4 uplinks to Core1 and WLC-standby has 2 uplinks to Core2. 

- What I see in the WLC GUI is  under the monitor page  is only what appears to be physically patched for the WLC-active. Is this the expected behaviour? I assume that if there is a failover to the WLC-Standby I will then see 2 uplinks in the GUI.

Many thanks
Scottie

1 Accepted Solution

Accepted Solutions

Scott Fella
Hall of Fame
Hall of Fame

I don't believe the RP sends or receives CDP, but its best to have someone onsite to check or take a picture or maybe see if the RP has a mac and look at the switch mac table.  Now with AireOS, When LAG is enabled, you should not split the connection unless your core is VSS or stack.  

-Scott
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1 Reply 1

Scott Fella
Hall of Fame
Hall of Fame

I don't believe the RP sends or receives CDP, but its best to have someone onsite to check or take a picture or maybe see if the RP has a mac and look at the switch mac table.  Now with AireOS, When LAG is enabled, you should not split the connection unless your core is VSS or stack.  

-Scott
*** Please rate helpful posts ***
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