Re: [Devmon] create new template question

[Buchan M. <bg...@st...>]

On Sunday, 28 February 2010 00:18:19 Jon Dustin wrote:
> Greetings -
> 
> I am trying to develop a new template for Cisco Wireless Controllers, and
>  running into a snag with devmon's features. Here is a quick snippet of the
>  SNMP conversations I am trying to analyze:
> 
> (names of wireless access points connected to controller)
> snmpwalk -v2c -cpublic 10.13.1.4 .1.3.6.1.4.1.14179.2.2.1.1.3
> SNMPv2-SMI::enterprises.14179.2.2.1.1.3.0.35.235.10.79.64 = STRING:
>  "wap-1st-2" SNMPv2-SMI::enterprises.14179.2.2.1.1.3.0.37.132.253.194.144 =
>  STRING: "wap-2nd-5"
>  SNMPv2-SMI::enterprises.14179.2.2.1.1.3.0.37.132.253.200.192 = STRING:
>  "wap-2nd-4"
> 
> (number of clients connected to each WAP - by radio)
> snmpwalk -v2c -cpublic 10.13.1.4 .1.3.6.1.4.1.14179.2.2.2.1.15
> SNMPv2-SMI::enterprises.14179.2.2.2.1.15.0.35.235.10.79.64.0 = Counter32: 4
> SNMPv2-SMI::enterprises.14179.2.2.2.1.15.0.35.235.10.79.64.1 = Counter32: 1
> SNMPv2-SMI::enterprises.14179.2.2.2.1.15.0.37.132.253.194.144.0 =
>  Counter32: 7
>  SNMPv2-SMI::enterprises.14179.2.2.2.1.15.0.37.132.253.194.144.1 =
>  Counter32: 3
>  SNMPv2-SMI::enterprises.14179.2.2.2.1.15.0.37.132.253.200.192.0 =
>  Counter32: 1
>  SNMPv2-SMI::enterprises.14179.2.2.2.1.15.0.37.132.253.200.192.1 =
>  Counter32: 1
> 
> In the above examples, 0.35.235.10.79.64 represents a single WAP (the
>  repeater part of the oid identifies the MAC address in decimal). In the
>  above example, the WAP labeled as wap-1st-2 has a "repeater OID" of
>  0.35.235.10.79.64.0, which corresponds to a MAC address of
>  00:23:eb:0a:4f:40 (not particularly germane to this question, but I
>  thought I would include the example).
> 
> Each WAP has two radios, which lead to two different results (.0 and .1).
> 
> What I would *like* to have is a nice devmon table similar to "regular"
>  switches, with the WAP name in the 1st column, the .0 client count in
>  column 2, and .1 count in column 3:
> 
> WAP Name	2.4GHz clients	5 GHz clients
> wap-1st-2	4		1
> wap-2nd-5	7		3
> wap-2nd-4	1		1
> 
> But I believe I have found a limitation with the devmon template
>  capabilities. I can easily get the names of the WAPs, and even the
>  repeater section of the OID (via a transform of INDEX). But I have tried
>  the CHAIN, INDEX, and REGSUB transform, and nothing is able to produce the
>  results I seek.
> 
> I need to have a "devmon transforms" that can give me a new oid like
>  follows:
> 
> wapClients24  = {.1.3.6.1.4.1.14179.2.2.2.1.15.}{wapRepeaterOid}.0
> wapClients24  = {.1.3.6.1.4.1.14179.2.2.2.1.15.}{wapRepeaterOid}.1
> 
> In all my reading of the devmon documentation, I cannot think of any scheme
>  to do this type of operation.
> 
> Please accept my apologies for such a verbose post, I hope the details
>  might help you understand my situation. Any help would be appreciated.
> 

I think it should be possible, and we just installed a Cisco Wireless 
Controller before I went on leave, so I will look at this as soon as I am back 
in the office ...