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Man Pages


Manual Reference Pages  -  SNMP-BRIDGE-MIB (1)

NAME

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

CONTENTS

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.

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

2.

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

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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