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Guys I have Aruba 7210 Controller with around 210 AP's but out of them 6 AP's are not showing up.

I have 7210 Controller Installed with 210 AP's recently i upgraded recent Aruba OS all AP's came up but 6 AP's are not showing UP. They got the IP and controller itself is acting as DHCP server and i can ping them but It doesnt show up in Controller. I have confirmed the IP of those AP's through Core switch.

If anyone know what could be the issue please help. 

Guru Elite

Re: Guys I have Aruba 7210 Controller with around 210 AP's but out of them 6 AP's are not showing up

Type "show log system 50" to see if you have any information about those APs.

 

Also type "show ap database" to see if those down APs have any flags next to them...



Colin Joseph
Aruba Customer Engineering

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Aruba Employee

Re: Guys I have Aruba 7210 Controller with around 210 AP's but out of them 6 AP's are not showing up

Are these APs always showing down in the ap database? If yes, please share the console output of the ap boot sequence.
Thanks,
Rajaguru Vincent
CWNA | CWSP | CWAP | CWDP | ACMP
New Contributor

Re: Guys I have Aruba 7210 Controller with around 210 AP's but out of them 6 AP's are not showing up

Hi sorry for delayed response.

I cannot see those AP's in AP database neither i can find any information in show log system, But wh.en i try to ping that IP from controller i can ping successfully. I can see the mac of AP's reading on switch and even IP i searched from core switch. Controller is acting as DHCP server. These AP's are getting IP from DHCP server which is controller but still it doesnt show them in AP database.

 

RegardsRashid

Usaid 

Re: Guys I have Aruba 7210 Controller with around 210 AP's but out of them 6 AP's are not showing up

Just because the controller hands out the AP's IP doesn't mean you have configured AP discovery correctly. You need to use DHCP option 43/60 (controller IP and 'ArubaAP' resp), or configure a DNS address for 'aruba-master.yourdomain.com'. 

 

Pulling the console output from an AP that is fialing to come up will tell you if it's not working and what isn't working if you think you have configured the above. You can also do ADP, but that only works on the same L2 domain on the controller or if you enable multicast across all your VLANs for 239.0.82.11.

Jerrod Howard
Sr. Techical Marketing Engineer
New Contributor

Re: Guys I have Aruba 7210 Controller with around 210 AP's but out of them 6 AP's are not showing up

AP's discovery is configured properly as i have already 205 AP's up and running. I am having issue only with those 6 AP's.

Guru Elite

Re: Guys I have Aruba 7210 Controller with around 210 AP's but out of them 6 AP's are not showing up

Actually, any DHCP server that is created on the controller automatically sends out DHCP option 60 and 43 for the management ip address of the controller in the background.

 

If you know the ip address that the AP gets, get on the controller and type "show datapath session table <ip address of ap>" repeatedly when the AP is booting up to see if any of the traffic on the AP even makes it to the controller.  The other option is to connect to the access point's console port to see what ip address the AP gets and what it is attempting to do, and where things fail.



Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

Re: Guys I have Aruba 7210 Controller with around 210 AP's but out of them 6 AP's are not showing up

CJ, when did we start sending out Opt43/60 in the background without it being configured? That's certainly new (at least to me). 

Jerrod Howard
Sr. Techical Marketing Engineer
Guru Elite

Re: Guys I have Aruba 7210 Controller with around 210 AP's but out of them 6 AP's are not showing up

Check this out http://community.arubanetworks.com/t5/Wireless-Access/odd-problem-with-Controller-DHCP/m-p/150950/highlight/true#M32010



Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

Re: Guys I have Aruba 7210 Controller with around 210 AP's but out of them 6 AP's are not showing up

Interesting! I have never seen that. I will have to try that out today.

Jerrod Howard
Sr. Techical Marketing Engineer
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