[mrtg] Monitoring Online cable modems

[Zeeshan Ahmed]

Dear all more problem here.
    
            i am trying to monitor the online cable modem on CMTS (Cable modem Transmition system) i am able to find the OID to get a value that is 

"    snmpwalk 192.168.1.1 public .1.3.6.1.4.1.3493.2.4.1.1.12.1.3 | grep -c "= 9"    "

after executing this i get the online modems value like "1140"

grep -c "= 9"   this grep the modems that have 9 and then count total 9

now i want to get this value in graphs.

i tried this but got error


Target[cmonline]:1.3.6.1.4.1.3493.2.4.1.1.12.1&1.3.6.1.4.1.3493.2.4.1.1.12.1:public at 192.168.1.1 grep -c "= 9"
MaxBytes1[cmonline]: 2000
MaxBytes2[cmonline]: 2000
Title[cmonline]: Online Cable modems
Options[cmonline]: gauge, noi
PageTop[cmonline]: <H2>Cable modems online</H2>
 <TABLE>
   <TR><TD>Device:</TD><TD>Cuda 12000</TD></TR>
   <TR><TD><a href="/mrtg/mrtg.html">HOME</a></TD></TR>
  </TABLE>

ERROR is :

SNMP Error:
Received SNMP response with error code
  error status: noSuchName
  index 1 (OID: 1.3.6.1.4.1.3493.2.4.1.1.12.1)
SNMPv1_Session (remote host: "192.168.1.1" [192.168.1.1].161)
                  community: "public"
                 request ID: 1140445850
                PDU bufsize: 8000 bytes
                    timeout: 2s
                    retries: 5
                    backoff: 1)
 at /usr/bin/../lib/mrtg2/SNMP_util.pm line 450
SNMPGET Problem for .1.3.6.1.4.1.3493.2.4.1.1.12.1 .1.3.6.1.4.1.3493.2.4.1.1.12.
1 sysUptime sysName on public at 192.168.1.1
 at /usr/bin/mrtg line 1491
WARNING: Expected a number but got ''
WARNING: Expected a number but got ''
ERROR: Target[cmonline] eval warning: syntax error at (eval 6) line 1, near "}
grep"
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