Monitoring a trunk thru SNMP/nagios

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jvernet
Member
Posts: 17
Joined: 10 Oct 2008 07:30
Location: Montrouge, France

Monitoring a trunk thru SNMP/nagios

Post by jvernet »

Hi,

We have a trunk between two stacks of Alcatel (6850 and 6450). The trunk is size 2, thru 2 fibers. I need to monitor, using nagios, if the trunk is up or not, and if one port of the trunk is down/or the trunk size change from 2 to 1.

I know how to see that from the command line (show linkagg 30), but is there a way to monitor this thru Nagios and an SNMP query ?

The trunk is shown below, port 1/20 and 2/20 on the stack.
i found, with show snmp mib family some items related, but do not know how to use them...

Any help would be appreciated !

Code: Select all

12290   alcatelIND1LAGMIBObjects                 linkaggregation
 12291   alclnkaggAgg                             linkaggregation
 12292   alclnkaggAggConfig                       linkaggregation
 12293   alclnkaggAggIdIfIndexTable               linkaggregation
 12294   alclnkaggAggPortDebugTable               linkaggregation
 12295   alclnkaggAggPortListTable                linkaggregation
 12296   alclnkaggAggPortStatsTable               linkaggregation
 12297   alclnkaggAggPortTable                    linkaggregation
 12298   alclnkaggAggTable                        linkaggregation
 12299   dot3adAggPortDebugTable                  linkaggregation
 12300   dot3adAggPortListTable                   linkaggregation
 12301   dot3adAggPortStatsTable                  linkaggregation
 12302   dot3adAggPortTable                       linkaggregation
 12303   dot3adAggTable                           linkaggregation
 12304   lagMIBObjects                            linkaggregation

Any help ?

Code: Select all

# show linkagg 30

Dynamic Aggregate
  SNMP Id                  : 40000030,
  Aggregate Number         : 30,
  SNMP Descriptor          : Dynamic Aggregate Number 30 ref 40000030 size 2,
  Name                     : Ag###########
  Admin State              : ENABLED,
  Operational State        : UP,
  Aggregate Size           : 2,
  Aggregate Min-Size       : 1,
  Number of Selected Ports : 2,
  Number of Reserved Ports : 2,
  Number of Attached Ports : 2,
  Primary Port             : 2/20
LACP
  MACAddress               : [e8:e7:32:98:81:21],
  Actor System Id          : [e8:e7:32:98:8a:7e],
  Actor System Priority    : 0,
  Actor Admin Key          : 30,
  Actor Oper Key           : 30,
  Partner System Id        : [00:e0:b1:89:a7:68],
  Partner System Priority  : 0,
  Partner Admin Key        : 0,
  Partner Oper Key         : 30,
  Pre-emption              : DISABLED,
  Pre-empt Value           : 30,
  Wait-To-Restore Timer    : 0

silvio
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Posts: 1886
Joined: 01 Jul 2008 10:51
Location: Germany

Re: Monitoring a trunk thru SNMP/nagios

Post by silvio »

easiest way will be to use nagios as snmp-station (trap receiver). Than such important things like port leave a linkagg or linkagg down will be informed instantly.
regards
Silvio
jvernet
Member
Posts: 17
Joined: 10 Oct 2008 07:30
Location: Montrouge, France

Re: Monitoring a trunk thru SNMP/nagios

Post by jvernet »

Yes, that's an idea. We do not yet use Nagios as a trap receiver....
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