The SNMP Monitoring in WLC's HA

[wjsenqkf2]

Hello,

I need a help.

I configed 3504 to HA

If HA completed, the manament ip will be one ip address.

I have a SNMP collect server. the snmp server will add wlc ip address.

which ip address should i do? (When HA is complete, the snmp  is not active from service port ip)

I'd like to collect snmp information from each wlc (Active and Standby)

[marce1000]

- You need to use the management IP of the primary. You can snmp  query it as to whether it is the primary node in the HA environment.  I usually combine this with checking it's serial number in my monitoring system. Both parameters will tell me if there has been a takeover (or other abnormal conditions). You can not monitor starts from the standby node in a HA environment. 

But there are lost of stats which  can be obtained from the Primary node ; below is an example.

xxxx_wireless_controller	AP Sso Config	OK	07-25-2019 12:26:57	15d 12h 23m 9s	1/20	SNMP OK - true(1)
	CPU	OK	07-25-2019 12:25:51	43d 12h 26m 6s	1/20	SNMP OK - 3
	Checkup	OK	07-25-2019 12:24:57	94d 19h 22m 59s	1/2	SNMP OK - Cisco Controller
	Corporate wireless clients	OK	07-25-2019 12:27:52	235d 13h 52m 0s	1/2	SNMP OK - 525
	Eduroam clients	OK	07-25-2019 12:28:23	169d 12h 38m 31s	1/2	SNMP OK - 170
	Memory	OK	07-25-2019 12:26:52	235d 13h 56m 53s	1/20	SNMP OK - 415216
	Number of AP supported	OK	07-25-2019 11:53:12	1181d 1h 4m 59s	1/20	SNMP OK - 500
	Port1	OK	07-25-2019 12:25:52	43d 12h 26m 28s	1/20	SNMP OK - up(1)
	Port2	OK	07-25-2019 12:25:54	235d 13h 55m 19s	1/20	SNMP OK - up(1)
	Power supply	OK	07-25-2019 11:36:03	1181d 0h 49m 56s	1/20	SNMP OK - true(1)
	Primary unit	OK	07-25-2019 12:23:56	35d 15h 54m 43s	1/20	SNMP OK - true(1)
	Public clients	OK	07-25-2019 12:23:40	15d 12h 23m 26s	1/2	SNMP OK - 1443
	Serial number	OK	07-25-2019 12:28:09	35d 15h 53m 39s	1/20	SNMP OK - "cloaked"
	Software release	OK	07-25-2019 12:25:31	29d 12h 24m 43s	1/20	SNMP OK - "8.2.170.0"
	Wireless access points online - expecting 300 minimum	OK	07-25-2019 11:27:29	735d 1h 21m 7s	1/20	SNMP OK - 377
	radius server eduroam	OK	07-25-2019 12:27:21	43d 12h 26m 16s	1/20	SNMP OK - enable(1)
	radius server ise10	OK	07-25-2019 12:27:23	29d 12h 24m 52s	1/20	SNMP OK - enable(1)

[wjsenqkf2]

Thank you for your answer.
So, can not I get the cpu, memory, and interface status values of the standby WLC?

[patoberli]

I don't know, but you can try with the management standby ip address. You either get a reply with data or not :)

[Freerk Terpstra]

The available information is limited and depending on the version of code, but it it correct that you need to use the management IP of the active HA-SSO unit to request information about the standby HA-SSO unit. More information can be found here. For the bigger appliances, based on UCS hardware, we normally use the CIMC interfaces to gather more information.

Please rate useful posts... :-)

[satdubey]

You can monitor following details of redundant WLC after WLC 8.7 code and above.

Article :- https://www.cisco.com/c/en/us/td/docs/wireless/controller/technotes/8-7/High_Availability_DG.html

• show redundancy peer-system statistics – peer statistics
• redundancy detail
• redundancy summary
• redundancy statistics