NAME

       snmp-bridge-mib - provide Linux bridge information via SNMP

SYNOPSIS

       snmp-bridge-mib {bridge}

ARGUMENTS

       The following arguments are required:

       bridge
           The name of the Linux bridge for which you want to provide information via SNMP, e.g.
           br0.

DESCRIPTION

       The snmp-bridge-mib is an extension to net-snmp. It collects information about a bridge in
       a Linux system and exports them for query from other (remote) systems for management
       purposes.

CONFIGURATION:

       The preferred method of snmp-bridge-mib to attach to net-snmp is agentx. For this to work,
       you will have to add the following line to /etc/snmp/snmpd.conf,

               master agentx

       restart snmpd and start snmp-bridge-mib. snmp-bridge-mib will then connect to the running
       snmpd daemon.

       Another way of attaching snmp-bridge-mib to is to run it as an embedded perl module. You
       have to add

               perl do "path to location of snmp-bridge-mib"

       and restart snmpd.

EXAMPLE:

       Follow the instructions in this manpage and type

               perl /usr/bin/snmp-bridge-mib br0

       You´ll get the following output:

                registering at .1.3.6.1.2.1.17
                running as a subagent.
                dot1qbridge agent started.
                NET-SNMP version 5.4.2.1 AgentX subagent connected

       Now it´s time for a first test:

               $ export MIBS=+BRIDGE-MIB
               $ snmpwalk localhost .1.3.6.1.2.1.17

       The output produced should look like

               BRIDGE-MIB::dot1dStpBridgeHelloTime = INTEGER: 199 centi-seconds
               BRIDGE-MIB::dot1dStpBridgeForwardDelay = INTEGER: 1499 centi-seconds
               BRIDGE-MIB::dot1dStpPort.1 = INTEGER: 1
               BRIDGE-MIB::dot1dStpPort.3 = INTEGER: 3
               BRIDGE-MIB::dot1dStpPortPriority.1 = INTEGER: 32
               BRIDGE-MIB::dot1dStpPortPriority.3 = INTEGER: 32
               BRIDGE-MIB::dot1dStpPortState.1 = INTEGER: disabled(1)
               BRIDGE-MIB::dot1dStpPortState.3 = INTEGER: disabled(1)
               BRIDGE-MIB::dot1dStpPortEnable.1 = INTEGER: disabled(2)
               BRIDGE-MIB::dot1dStpPortEnable.3 = INTEGER: disabled(2)
               BRIDGE-MIB::dot1dStpPortPathCost.1 = INTEGER: 2
               BRIDGE-MIB::dot1dStpPortPathCost.3 = INTEGER: 4
               BRIDGE-MIB::dot1dStpPortDesignatedRoot.1 = STRING: "8000.001018382c78"
               BRIDGE-MIB::dot1dStpPortDesignatedRoot.3 = STRING: "8000.001018382c78"
               BRIDGE-MIB::dot1dStpPortDesignatedCost.1 = INTEGER: 0
               BRIDGE-MIB::dot1dStpPortDesignatedCost.3 = INTEGER: 0
               BRIDGE-MIB::dot1dStpPortDesignatedBridge.1 = STRING: "8000.001018382c78"
               BRIDGE-MIB::dot1dStpPortDesignatedBridge.3 = STRING: "8000.001018382c78"
               BRIDGE-MIB::dot1dStpPortDesignatedPort.1 = STRING: "32769"
               BRIDGE-MIB::dot1dStpPortDesignatedPort.3 = STRING: "32770"
               BRIDGE-MIB::dot1dStpPortPathCost32.1 = INTEGER: 2
               BRIDGE-MIB::dot1dStpPortPathCost32.3 = INTEGER: 4
               BRIDGE-MIB::dot1dTpLearnedEntryDiscards = Counter32: 0
               BRIDGE-MIB::dot1dTpAgingTime = INTEGER: 300 seconds
               BRIDGE-MIB::dot1dTpFdbAddress.´...8,x´ = STRING: 0:10:18:38:2c:78
               BRIDGE-MIB::dot1dTpFdbAddress.´.!^/B|´ = STRING: 0:21:5e:2f:42:7c
               BRIDGE-MIB::dot1dTpFdbPort.´...8,x´ = INTEGER: 1
               BRIDGE-MIB::dot1dTpFdbPort.´.!^/B|´ = INTEGER: 3
               BRIDGE-MIB::dot1dTpFdbStatus.´...8,x´ = INTEGER: learned(3)
               BRIDGE-MIB::dot1dTpFdbStatus.´.!^/B|´ = INTEGER: learned(3)
               BRIDGE-MIB::dot1dTpPort.1 = INTEGER: 1
               BRIDGE-MIB::dot1dTpPort.3 = INTEGER: 3
               BRIDGE-MIB::dot1dTpPortMaxInfo.1 = INTEGER: 1500 bytes
               BRIDGE-MIB::dot1dTpPortMaxInfo.3 = INTEGER: 1500 bytes
               BRIDGE-MIB::dot1dTpPortInFrames.1 = Counter32: 18082 frames
               BRIDGE-MIB::dot1dTpPortInFrames.3 = Counter32: 1546072 frames
               BRIDGE-MIB::dot1dTpPortOutFrames.1 = Counter32: 11601 frames
               BRIDGE-MIB::dot1dTpPortOutFrames.3 = Counter32: 10988 frames
               BRIDGE-MIB::dot1dTpPortInDiscards.1 = Counter32: 0 frames
               BRIDGE-MIB::dot1dTpPortInDiscards.3 = Counter32: 0 frames

BUGS

        1. snmp-bridge-mib currently only supports one bridge which has to be specified on the
           commandline.

        2. Not all elements of RFC 4188 because they are either not available in sysfs or
           difficult to extract from the existing data.

SEE ALSO

       snmpd.conf(5), Net::SNMP(3)

AUTHOR

       Jens Osterkamp <jens@linux.vnet.ibm.com>
           Developer

COPYRIGHT

       Copyright © 2009, 2010 IBM Corp., All Rights Reserved

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       The above copyright notice and this permission notice shall be included in all copies or
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