BROCADE-FABRIC-MIB

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Organization: Brocade Communications Systems, Inc.

Last Updated: 2012-05-27

Category: Fibre Channel and Storage, Vendor: Foundry/Brocade

Description: Monitors Brocade Fibre Channel fabric topology, switch membership, and zone configuration.

Start monitoring vendor-neutral, standards-based MIB, any SNMPv3-capable network device (SNMP engine identity/boot/clock status) 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.

What Is BROCADE-FABRIC-MIB?

BROCADE-FABRIC-MIB is a Brocade Communications Systems MIB for the Switch Fabric Module on NetIron XMR/MLX core routing platforms. It exposes per-fabric-module statistics including dropped-packet counters and fabric/front-end module identifiers, plus a set of fabric-related SNMP notifications. It directly supports hardware health monitoring of the switch fabric backplane -- rising dropped-packet counts on a specific fabric module indicate a failing or degraded fabric card, while the notification objects report fabric module state changes (such as going offline) as fault events. As a proprietary Brocade enterprise MIB it is typically used alongside standard IF-MIB and Brocade chassis/FRU inventory MIBs for complete hardware visibility. It is deployed on high-end Brocade (later Extreme-owned) NetIron XMR and MLX platforms that use a fabric-based switching backplane, monitored via the BROCADE-FABRIC-MIB MIB.

IPNetwork Monitor allows you to monitor SNMP objects defined in BROCADE-FABRIC-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

Brocade NetIron XMR core router
Brocade NetIron MLX router

Monitoring Examples

An admin polls brcdFabricStatsTable (indexed by brcdFabricSfmId and brcdFabricSfmFeId) tracking brcdFabricDropMAC0Count through brcdFabricDropMAC3Count per fabric element; a sudden rise in dropped packets on one SFM points to a failing switch fabric module or interconnect. brcdFabricNotifications would fire an SNMP trap when a fabric module changes operational state, letting NOC staff correlate the counter spike with the actual fault event.

What Can Be Monitored

per-fabric-module dropped packet counts
switch fabric module identifiers
fabric fault/state-change notifications

Imported Objects

From FOUNDRY-SN-AGENT-MIB

snAgentBrdIndex

OBJECT-TYPE

From FOUNDRY-SN-ROOT-MIB

brcdFabric

OBJECT-IDENTITY

From SNMPv2-SMI

Counter32
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

How to Use in IPNetwork Monitor

Example using brcdFabricDropMAC0Count OID:

Select a Brocade NetIron XMR/MLX core router as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type brcdFabricDropMAC0Count into the Find box to locate it in the OID tree, selecting the specific row/instance you want to monitor since this is a table column, then select it and click OK. The number of packets dropped for MAC0 link group (links 0 to 23). On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is a Counter32-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases between polls, since a rising count of errors, failures, or discards often points to a real underlying problem. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
brcdFabricMIB	1.3.6.1.4.1.1991.1.1.13.1			The MIB module contains the managed object definition for Brocade Switch Fabric Module. Supported Platforms: - supported on NI XMR/MLX platforms. Copyright 1996-2010 Brocade Communications Systems, Inc. All rights reserved. This Brocade Communications Systems SNMP Management Information Base Specification embodies Brocade Communications Systems' confidential and proprietary intellectual property. Brocade Communications Systems retains all title and ownership in the Specification, including any revisions. This Specification is supplied AS IS, and Brocade Communications Systems makes no warranty, either express or implied, as to the use, operation, condition, or performance of the specification, and any unintended consequence it may on the user environment.
brcdFabricNotifications	1.3.6.1.4.1.1991.1.1.13.1.0
NTF brcdFabricAutoSFMWalkInitiated	1.3.6.1.4.1.1991.1.1.13.1.0.1			The SNMP trap that is generated when SFM walk is started
NTF brcdFabricSFMRemovedFromDatapath	1.3.6.1.4.1.1991.1.1.13.1.0.2			The SNMP trap that is generated when an Error - SFM removed from data path based on SFM walk.
brcdFabricObjects	1.3.6.1.4.1.1991.1.1.13.1.1
brcdFabricStatsTable	1.3.6.1.4.1.1991.1.1.13.1.1.1		not-accessible	A list of brcdFabricStats entries. This table contains information of various Switch Fabric Module(SFM) counters supported by this system.
brcdFabricStatsEntry	1.3.6.1.4.1.1991.1.1.13.1.1.1.1		not-accessible	An entry containing SFM and FE counter information.
U32 brcdFabricSfmId	1.3.6.1.4.1.1991.1.1.13.1.1.1.1.1	Unsigned32	not-accessible	Switch Fabric Module(SFM) number
U32 brcdFabricSfmFeId	1.3.6.1.4.1.1991.1.1.13.1.1.1.1.2	Unsigned32	not-accessible	Fabric Element(FE) number
C32 brcdFabricDropMAC0CountEx	1.3.6.1.4.1.1991.1.1.13.1.1.1.1.3	Counter32	read-only	The number of packets dropped for MAC0 link group (links 0 to 23)
C32 brcdFabricDropMAC1Count	1.3.6.1.4.1.1991.1.1.13.1.1.1.1.4	Counter32	read-only	The number of packets dropped for MAC1 link group (links 24 to 47)
C32 brcdFabricDropMAC2Count	1.3.6.1.4.1.1991.1.1.13.1.1.1.1.5	Counter32	read-only	The number of packets dropped for MAC2 link group (links 48 to 71)
C32 brcdFabricDropMAC3Count	1.3.6.1.4.1.1991.1.1.13.1.1.1.1.6	Counter32	read-only	The number of packets dropped for MAC3 link group (links 72 to 95)

RFC description

Monitors Brocade Switch Fabric Module (SFM) counters and statistics on NI XMR/MLX platforms.

Start monitoring Brocade NetIron XMR/MLX core routers 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.

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