SNMP_BRIDGE(3)						   BSD Library Functions Manual 					    SNMP_BRIDGE(3)

NAME

     snmp_bridge -- bridge module for snmpd

LIBRARY

     (begemotSnmpdModulePath."bridge" = /usr/lib/snmp_bridge.so)

DESCRIPTION

     The snmp_bridge module implements the BRIDGE-MIB as standardized in RFC 4188, the RSTP-MIB standardized in RFC4318 and a private BEGEMOT-
     BRIDGE-MIB, which allows management of multiple bridge interfaces.  Most of the objects defined in the private BEGEMOT-BRIDGE-MIB are dupli-
     cates of the original objects defined by the standard BRIDGE-MIB, but the private MIB also defines additional objects which make the func-
     tionality of snmp_bridge similar to ifconfig(8) for configuring bridge interfaces.  Therefore one should consider adding write communities or
     loading the snmp_bridge module on systems where security is crucial.

IMPLEMENTATION NOTES

     The additional objects to configure a bridge are:

     begemotBridgeBaseStatus
		Bridge interfaces can be created and destroyed via this object.  SNMP SET operations with the following values are allowed:

		createAndWait  will attempt to create a bridge interface with the name given by the table index.

		createAndGo    will attempt to create a bridge interface with the name given by the table index and set the status of the inter-
			       face to "active/up".

		destroy        will attempt to destroy the bridge interface.

     begemotBridgeBaseSpanEnabled
		A SNMP SET operation on this object is only successful if the corresponding port has not been added as member of the bridge inter-
		face on the system.

     begemotBridgeBasePortStatus
		SNMP SET operations with the following values are allowed:

		createAndWait  will create a new row for the bridge member in the SNMP begemotBridgeBasePortTable but will not try to commit the
			       information to the system.

		active	       will attempt to commit the information to the system and will be successful only if a value for
			       begemotBridgeBaseSpanEnabled has been SET already.

		destroy        will attempt to remove the interface from the system bridge interface.

     begemotBridgeBasePortPrivate
		This object controls a bridge interface flag called PRIVATE where any private port can not communicate with another private port.

RESTRICTIONS

     Not all information in the MIBs is currently available in FreeBSD.  The following variables carry no information:

     dot1dBasePortCircuit

     dot1dBasePortDelayExceededDiscards

     dot1dBasePortMtuExceededDiscards

     begemotBridgeBasePortDelayExceededDiscards

     begemotBridgeBasePortMtuExceededDiscards

FILES

     /usr/share/snmp/defs/bridge_tree.def
		The description of the MIB tree implemented by snmp_bridge.

     /usr/share/snmp/mibs/BRIDGE-MIB.txt
		This is the BRIDGE-MIB that is implemented by this module.

     /usr/share/snmp/mibs/RSTP-MIB.txt
		This is the RSTP-MIB implemented by this module.

     /usr/share/snmp/mibs/BEGEMOT-BRIDGE-MIB.txt
		This is the private BEGEMOT-BRIDGE-MIB that is implemented by this module.

SEE ALSO

     bsnmpd(1), gensnmptree(1), snmpmod(3), if_bridge(4), ifconfig(8)

AUTHORS

     Shteryana Shopova <syrinx@FreeBSD.org>

BSD
								  August 6, 2007							       BSD