RE: (ASCEND) SNMP questions

[Peter Lalor <plalor@infoasis.com>]

Thanks Steve. I figured out the relevant OIDs by walking 529.4.21 and 529.4.23.

I now have MRTG successfully graphing both the aggregate used/available
switched channels as well as most hunt groups. Also modem utilization. :-)

I'm having trouble getting MRTG to add two OIDs together with a '+' per the
docs. I think it worked once, but now doesn't anymore. I'm fiddling with
it, but it's refusing. Does anyone have this working?

From the docs, this should work to aggregate two wan lines into a single
graph (with the same data on the two graph tracks):

Target[hunt1]: 1.3.6.1.4.1.529.4.21.1.7.304:public@maxtnt +
1.3.6.1.4.1.529.4.21.1.7.305:public@maxtnt&1.3.6.1.4.1.529.4.21.1.7.304:
public@maxtnt + 1.3.6.1.4.1.529.4.21.1.7.305: public@maxtnt

But I get:

SNMP Error:
Received SNMP response with error code
  error status: noSuchName
  index 1 (OID: 1.3.6.1.2.1.4.20.1.2.1.3.6.1.4.1.529.4.21.1.7.304)
SNMPv1_Session (remote host: "maxtnt" [209.1.58.1].161
                  community: "public"
                 request ID: 1546879509
                PDU bufsize: 8000 bytes
                    timeout: 2s
                    retries: 5
                    backoff: 1)
SNMPGET Problem for ipAdEntIfIndex.1.3.6.1.4.1.529.4.21.1.7.304 on
public@maxtnt

I haven't yet managed to get UCD-SNMP to recognize the Ascend MIBs, and
this may be the cause. Anyone care to help with that?

>Peter,  I've read the responses to your message but don't think they
>addressed your question completely.  Available Channels totals are kept in
>two places in the Ascend advanced.mib.
>
>This variable (529.4.23.0) is the scalar used to keep track of all the
>available channels for the entire device.
>    wanAvailableChannels OBJECT-TYPE
>        SYNTAX  INTEGER
>        ACCESS  read-only
>        STATUS  mandatory
>        DESCRIPTION
>          "The sum of wanLineAvailableChannels for all lines."
>       ::= { advancedAgent 23 }
>
>This variable (529.4.21.1.12) is the number available per wan interface.
> wanLineAvailableChannels OBJECT-TYPE
>        SYNTAX  INTEGER
>        ACCESS  read-only
>        STATUS  mandatory
>        DESCRIPTION
>          "The number of DS0 channels of the line configured as Switched and
>	  available for making or accepting calls.
>          This variable counts the number of wanLineChannels with the
>          wanLineChannelState of bs-idle(7) for all the entries in its
>          wanLineChannelEntry table."
>       ::= { wanLineEntry 12 }
>
>If your trunk group is all of the wan lines in the entire box then use
>wanAvailableChannels.  If your trunk group is a subset of the wan lines then
>use wanLineAvailableChannels for each of the member interfaces. Just add the
>numbers together. The table is indexed by ifIndex so you should be able to
>easily pick what you want.
>
>Steven Johannesman
>Ascend Communications
>Product Manager, NavisAccess
>steve.johannesman@ascend.com <mailto:steve.johannesman@ascend.com>
>
>-----Original Message-----
>Subject: (ASCEND) SNMP questions
>
>I've started fooling with MRTG. Inevitably, now I need to know a whole lot
>more than I do about SNMP.
>
>Is there an OID equivalent to wanAvailableChannels that returns available
>channels by trunk group? I'm thinking wanLineAvailableChannels might be
>close, but I'm not sure how to refer to it.
>
>Is there documentation that actually explains what the OIDs actually
>return? Ascend's docs list them, but don't explain them?
>
>Finally, how do I do an snmpwalk? Is it a Unix command or a feature of SNMP
>managers?
>
>Thanks.
>
>Peter Lalor           Infoasis
>plalor@infoasis.com   http://www.infoasis.com/

Peter Lalor           Infoasis
plalor@infoasis.com   http://www.infoasis.com/
++ Ascend Users Mailing List ++
To unsubscribe:	send unsubscribe to ascend-users-request@bungi.com
To get FAQ'd:	<http://www.nealis.net/ascend/faq>