About memory and cpu information using SNMP

[conectividade]

Hi folks,

We use the software CACTI to show grafics about memory, interfaces and cpu of our router an switches CISCO, but when we try to sends the comand

snmpwalk -v 1 10.15.17.55 -c public -m memAvailRealm,

to our CSS, it does not return data about memory or cpu. Someone could help us?

infos about our CSS:

CSS01-EXT-SEDE# version

Version: sg0740103

Licensed Cmd Set(s): Standard Feature Set

thanks,

Renato

[jaregalado]

Hi

I suggest you check if your CSS supports the variable you're polling, if in doubt do a full snmpwalk and check if the variable shows up there. Just be very careful as doing this may stress your device too much with nearly 100% CPU usage and take some time to complete. Try it after hours or on a spare CSS if possible.

Regards...

[jfoerster]

Hi Renato,

you've to use snmp v2 for most of the OIDs. Repeat your snmpwalk with version 2c and you will see that you get a lot of more OIDs than using v1.

Nevertheless you can search for OIDs at:

http://www.cisco.com/pcgi-bin/Support/Mibbrowser/unity.pl

Another hint: In the WEBNS you are using the OID tree changed a bit. It's no longer the arrowpoint subtree but the cisco subtree where the CSS is located (valid since 7.4 see http://www.cisco.com/en/US/products/hw/contnetw/ps792/prod_release_note09186a00803a7c04.html#wp182120)

Another thing I rember is that you won't get as much details regarding the CPU and the memory as from a router. I think I read something like that in former posting.

Kind Regards,

Joerg