[c-nsp] PPPoA Sessions MRTG
Mohammad Khalil
eng_mssk at hotmail.com
Tue Mar 17 14:53:10 EDT 2009
Hey all ,
im using MRTG for monitoring our network devices traffic.
i faced a problem of how to draw PPPoA sessions as it dont have an OID like PPPoE
we have a router with 2 PPP customers : PPPoA and PPPoE
the OID for the PPPoE sessions can be found easily : 1.3.6.1.4.1.9.9.194.1.1.1
to find the number of PPPoA sessions , we used CISCO-AAA-SESSION-MIB casnActiveTableEntries "1.3.6.1.4.1.9.9.150.1.1.1"
but that will give all the active sessions on the router , when i used the snmpwalk command on a linux server it gave me over 6000 , while its on the router via show user summary command , gives around 1800
so the needed configuration was as below:
create on-demand command under the PVC range , under the ATM sub interface (This will reserve the active connections only)
interface ATM1/0/0.11 multipoint
range pvc 11/35 11/274
create on-demand
as well as , applying the command aaa session-mib populate start in global configuration mode
after all , show user summary output:
Device#sh users summary
1766 session(s) locally terminated
PPPOA 1007
PPPOE 759
[root at cacti-nms ~]# snmpwalk -v2c -c community IP .1.3.6.1.4.1.9.9.150.1.1.1
SNMPv2-SMI::enterprises.9.9.150.1.1.1.0 = Gauge32: 1766
Then to draw the PPPoA sessions , u have to substract the PPPoE sessions as the OID gives the total number of sessions:
Target[Device_PPPoA]:1.3.6.1.4.1.9.9.150.1.1.1.0&1.3.6.1.4.1.9.9.150.1.1.1.0:community at IP - 1.3.6.1.4.1.9.9.194.1.1.1.0&1.3.6.1.4.1.9.9.194.1.1.1.0:community at IP
Thanks all
Best Regards,
Mohammad Khalil
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