ITOUCH-BRIDGE-MIB

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Category: Technology: VLAN, VLAN and Bridging, Vendor: iTouch

Description: iTouch bridge MIB providing SNMP objects for 802.1D transparent bridging and spanning tree management on iTouch platforms.

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What Is ITOUCH-BRIDGE-MIB?

ITOUCH-BRIDGE-MIB is an iTouch Communications enterprise MIB providing management objects for 802.1D transparent bridging and spanning tree functionality on iTouch networking platforms. It exposes bridge-layer configuration and state such as spanning tree protocol status, port roles (forwarding/blocking), and bridge/port identifiers, mirroring the standard BRIDGE-MIB but scoped to iTouch's own product line. Its monitoring focus is software/protocol status: confirming spanning tree has converged, that no port is unexpectedly stuck in a blocking or listening state, and that the bridge topology is stable, which helps catch loops or link flaps at Layer 2. It is closely modeled on and typically deployed alongside the standard IETF BRIDGE-MIB (RFC 4188) for baseline bridge/STP semantics. It is used on iTouch switches and bridging appliances within enterprise or campus LAN environments. Engineers can download the ITOUCH-BRIDGE-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in ITOUCH-BRIDGE-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

iTouch Communications switches and bridging appliances

Monitoring Examples

An administrator would monitor per-port spanning tree state (forwarding, blocking, listening, learning) and the root bridge identifier to confirm the spanning tree topology is stable, alerting if a port flaps repeatedly between states, which signals a physical loop or a flapping uplink. Bridge/port table walks (in the style of the standard dot1dStpPortTable) would be used to spot a port stuck in blocking when it should be forwarding. No concrete sample objects were available in the source, so exact OIDs follow the conventional BRIDGE-MIB naming pattern.

What Can Be Monitored

spanning tree protocol state
per-port forwarding/blocking status
root bridge identity
bridge topology stability

Imported Objects

From BRIDGE-MIB

MacAddress
dot1dTpFdbAddress

From ITOUCH-MIB

iTouch

OBJECT-IDENTITY

From RFC-1212

OBJECT-TYPE

From RFC1155-SMI

Counter

From RFC1213-MIB

DisplayString
ifIndex

OIDs

OID symbolic	OID numeric	Type	Access	Description
bridgeDep	1.3.6.1.4.1.33.5
xBridge	1.3.6.1.4.1.33.19
xBridgeSystem	1.3.6.1.4.1.33.19.1
INT bridgeState	1.3.6.1.4.1.33.19.1.1	INTEGER	read-write	Controls whether the bridge will perform bridging.
INT bridgeEarlyLoopState	1.3.6.1.4.1.33.19.1.2	INTEGER	read-write	Controls whether the bridge will implement the early loop detection algorithm of restarting the Spanning Tree Protocol when a packet is received from a source on one interface when the source was learned on a different interface.
CTR bridgeEarlyLoopCount	1.3.6.1.4.1.33.19.1.3	Counter	read-only	The number of times that an early loop was detected while the early loop state was enabled.
MAC bridgeEarlyLoopAddress	1.3.6.1.4.1.33.19.1.4	MacAddress	read-only	The last address to cause an early loop to be detected while the early loop state was enabled.
INT bridgeSpanningTreeState	1.3.6.1.4.1.33.19.1.5	INTEGER	read-write	Controls whether the bridge will run the Spanning Tree Protocol.
INT bridgeFilterDiscardTimeout	1.3.6.1.4.1.33.19.1.6	INTEGER	read-write	The number of seconds before an inactive filter is deleted. Learned filters become inactive when the use timeout (dot1dTpAgingTime) has been exceeded.
INT bridgeTopologyState	1.3.6.1.4.1.33.19.1.7	INTEGER	read-only	Indicates whether the Spanning Tree Protocol's topology is stable or changing.
MAC bridgeTopologyChangeAddr	1.3.6.1.4.1.33.19.1.8	MacAddress	read-only	The ethernet address of the last bridge from which a Topology Change Notification packet was received.
xBridgeProtocol	1.3.6.1.4.1.33.19.3
INT bridgeProtocolFilterState	1.3.6.1.4.1.33.19.3.1	INTEGER	read-write	Controls whether protocol filtering is active.
INT bridgeProtocolDefaultPriority	1.3.6.1.4.1.33.19.3.2	INTEGER	read-write	Controls the default priority if no entry exists for the protocol.
bridgeProtocolTable	1.3.6.1.4.1.33.19.3.3		not-accessible	A list of bridge protocol filters.
bridgeProtocolEntry	1.3.6.1.4.1.33.19.3.3.1		not-accessible	Bridge protocol filter entry.
OCT bridgeProtocolProtocol	1.3.6.1.4.1.33.19.3.3.1.1	OCTET STRING	read-only	The protocol type associated with the entry. The value 65536 is for all 802.3 MAC frames.
STR bridgeProtocolName	1.3.6.1.4.1.33.19.3.3.1.2	DisplayString	read-write	The name associated with the protocol.
INT bridgeProtocolPriority	1.3.6.1.4.1.33.19.3.3.1.3	INTEGER	read-write	The priority or action to take with the protocol.
CTR bridgeProtocolUses	1.3.6.1.4.1.33.19.3.3.1.4	Counter	read-only	The number of times the filter has been used.
INT bridgeProtocolStatus	1.3.6.1.4.1.33.19.3.3.1.5	INTEGER	read-write	The status of the protocol entry. Set to 'invalid' to remove the entry.
xBridgeFilter	1.3.6.1.4.1.33.19.4
bridgeFilterTable	1.3.6.1.4.1.33.19.4.1		not-accessible	A list of bridge filters.
bridgeFilterEntry	1.3.6.1.4.1.33.19.4.1.1		not-accessible	Bridge filter entry.
INT bridgeFilterForwardSubPort	1.3.6.1.4.1.33.19.4.1.1.1	INTEGER	read-write	The unique identifier from which the address has been seen within the port. It is the DLCI for frame relay or VC for X25.
CTR bridgeFilterUses	1.3.6.1.4.1.33.19.4.1.1.2	Counter	read-only	The number of times the filter has been used for forwarding packets.
INT bridgeFilterAge	1.3.6.1.4.1.33.19.4.1.1.3	INTEGER	read-only	The number of seconds that a learned filter has been active or inactive. This value has no meaning for non-learned filters.
bridgeFilterLinkTable	1.3.6.1.4.1.33.19.4.2		not-accessible	Bridge filtering characteristics of all links.
bridgeFilterLinkEntry	1.3.6.1.4.1.33.19.4.2.1		not-accessible	Bridge filtering characteristics of a specific link.
INT bridgeFilterLinkOverflowCam	1.3.6.1.4.1.33.19.4.2.1.1	INTEGER	read-write	Identifies the number of extra entries in a hardware assist filter CAM that the user wants to have available to cover CAM entry overflow conditions. If filtering hardware is present, this field defaults to 400. Otherwise, it is zero.

RFC description

iTouch vendor-private MIB for bridge and switching functionality on iTouch network devices.

Start monitoring iTouch switches and bridging appliances with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download ITOUCH-BRIDGE-MIB

What Is ITOUCH-BRIDGE-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description