FOUNDRY-SN-MRP-MIB

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Organization: Brocade Communications Systems, Inc.

Last Updated: 2010-06-02

Category: Vendor: Foundry/Brocade

Description: Brocade Foundry MRP (Metro Ring Protocol) MIB providing ring topology protection configuration and state objects for metro Ethernet deployments.

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What Is FOUNDRY-SN-MRP-MIB?

FOUNDRY-SN-MRP-MIB is a Brocade/Foundry proprietary MIB for Metro Ring Protocol (MRP), a ring-topology Ethernet resiliency protocol used on FastIron metro Ethernet switches. It exposes a ring configuration table describing each ring's VLAN, ring ID, member ports, hello/preforwarding timers, and the switch's role and configuration state within the ring. Its monitoring value is largely about software/protocol status rather than raw hardware sensors: an operator uses it to confirm a ring's configuration state and each node's role (master vs. member) to detect ring topology misconfiguration or a stuck failover condition. There is no explicit dependency on other MIBs noted, though MRP state is typically correlated with standard interface (IF-MIB) link status for the two ring ports. It is deployed in metro Ethernet or campus ring topologies built on Brocade/Foundry FastIron switches for sub-second failover resiliency. Engineers can download the FOUNDRY-SN-MRP-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in FOUNDRY-SN-MRP-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/Foundry FastIron metro Ethernet switch

Monitoring Examples

An admin would walk snMetroRingTable/snMetroRingEntry to read snMetroRingConfigState and snMetroRingRole for each configured ring, confirming that exactly one switch holds the master role and the rest are members, and would check snMetroRingPort1/snMetroRingPort2 to verify the two ring ports assigned to each ring. Unexpected values in snMetroRingHelloTime or snMetroRingPreforwardingTime versus the configured baseline could indicate a misconfigured node about to cause a ring instability or forwarding loop, and snMetroRingRowStatus shows whether a ring entry is active, notInService, or being provisioned.

What Can Be Monitored

ring configuration state
node role (master/member)
ring member ports
hello and preforwarding timers
ring VLAN ID

Imported Objects

From IF-MIB

InterfaceIndex

From SNMPv2-SMI

Counter32
Integer32
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

DisplayString

How to Use in IPNetwork Monitor

Example using snMetroRingRHPTransmitted OID:

Select a Brocade/Foundry FastIron metro Ethernet switch (Metro Ring Protocol) 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 snMetroRingRHPTransmitted 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. It reports the ring health protocol (RHP) transmitted counter. 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 sharply between polls relative to its normal baseline, since an unexpected spike often reflects a real change in traffic or activity. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
snMetroRing	1.3.6.1.4.1.1991.1.1.3.29			Management Information Base module for metro ring configuration and statistics. 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.
snMetroRingGlobalObjects	1.3.6.1.4.1.1991.1.1.3.29.1
snMetroRingTableObjects	1.3.6.1.4.1.1991.1.1.3.29.2
snMetroRingTable	1.3.6.1.4.1.1991.1.1.3.29.2.1		not-accessible	Metro ring table.
snMetroRingEntry	1.3.6.1.4.1.1991.1.1.3.29.2.1.1		not-accessible	An entry of the metro ring table.
I32 snMetroRingVLanId	1.3.6.1.4.1.1991.1.1.3.29.2.1.1.1	Integer32	not-accessible	Identifier of a VLAN that controls the metro ring.
I32 snMetroRingId	1.3.6.1.4.1.1991.1.1.3.29.2.1.1.2	Integer32	not-accessible	Metro ring identifier.
INT snMetroRingConfigState	1.3.6.1.4.1.1991.1.1.3.29.2.1.1.3	INTEGER	read-write	Metro ring state.
INT snMetroRingRole	1.3.6.1.4.1.1991.1.1.3.29.2.1.1.4	INTEGER	read-write	Metro ring role. other(1).........none of the cases in below. master(2)........device which originates RHP packets. member(3)........device which forwards RHP packets.
I32 snMetroRingHelloTime	1.3.6.1.4.1.1991.1.1.3.29.2.1.1.5	Integer32	read-write	The time interval to periodically transmit ring health protocol (RHP). Each unit is millisecond.
I32 snMetroRingPreforwardingTime	1.3.6.1.4.1.1991.1.1.3.29.2.1.1.6	Integer32	read-write	The time interval of which a metro ring port is staying in preforwarding state before changing to forwarding state. Each unit is millisecond.
NUM snMetroRingPort1	1.3.6.1.4.1.1991.1.1.3.29.2.1.1.7	InterfaceIndex	read-write	The ifIndex value of port 1 to configure into the metro ring.
NUM snMetroRingPort2	1.3.6.1.4.1.1991.1.1.3.29.2.1.1.8	InterfaceIndex	read-write	The ifIndex value of port 2 to configure into the metro ring.
STR snMetroRingName	1.3.6.1.4.1.1991.1.1.3.29.2.1.1.9	DisplayString	read-write	The metro ring description.
INT snMetroRingRowStatus	1.3.6.1.4.1.1991.1.1.3.29.2.1.1.10	INTEGER	read-write	This object is used to create and delete row in the table and control if they are used. The values that can be written are: delete(3)...deletes the row create(4)...creates a new row If the row exists, then a SET with value of create(4) returns error 'badValue'. Deleted rows go away immediately. The following values can be returned on reads: noSuchName...no such row other(1).....some other cases valid(2)....the row exists and is valid
INT snMetroRingOperState	1.3.6.1.4.1.1991.1.1.3.29.2.1.1.11	INTEGER	read-only	Metro ring operational state.
I32 snMetroRingTopoGroupId	1.3.6.1.4.1.1991.1.1.3.29.2.1.1.12	Integer32	read-only	Topology group ID that controls the metro ring.
C32 snMetroRingRHPTransmittedEx	1.3.6.1.4.1.1991.1.1.3.29.2.1.1.13	Counter32	read-only	Ring health protocol (RHP) transmitted counter.
C32 snMetroRingRHPReceived	1.3.6.1.4.1.1991.1.1.3.29.2.1.1.14	Counter32	read-only	Ring health protocol (RHP) received counter.
C32 snMetroRingStateChanged	1.3.6.1.4.1.1991.1.1.3.29.2.1.1.15	Counter32	read-only	Ring state changed counter.
C32 snMetroRingTCRBPDUReceived	1.3.6.1.4.1.1991.1.1.3.29.2.1.1.16	Counter32	read-only	Topology change protocol received counter.
NUM snMetroRingPriPort	1.3.6.1.4.1.1991.1.1.3.29.2.1.1.17	InterfaceIndex	read-only	The ifIndex value of primary port.
NUM snMetroRingSecPort	1.3.6.1.4.1.1991.1.1.3.29.2.1.1.18	InterfaceIndex	read-only	The ifIndex value of secondary port.
INT snMetroRingPriPortState	1.3.6.1.4.1.1991.1.1.3.29.2.1.1.19	INTEGER	read-only	Metro ring primary port state. other(1)...........none of the cases in below. preforwarding(2)...port transmits RHP packets, port does not transmit data packets. forwarding(3)......port transmits RHP and data packets. blocking(4)........port receives RHP packets, port does not receive data packets. disabled(5)........port is disabled from metro ring.
INT snMetroRingSecPortState	1.3.6.1.4.1.1991.1.1.3.29.2.1.1.20	INTEGER	read-only	Metro ring secondary port state. other(1)...........none of the cases in below. preforwarding(2)...port transmits RHP packets, port does not transmit data packets. forwarding(3)......port transmits RHP and data packets. blocking(4)........port receives RHP packets, port does not receive data packets. disabled(5)........port is disabled from metro ring.
INT snMetroRingPriPortType	1.3.6.1.4.1.1991.1.1.3.29.2.1.1.21	INTEGER	read-only	Metro ring primary port type. other(1).....none of the cases in below. regular(2)...port is configured to operate on a single ring. tunnel(3)....port is configured to operate on multiple rings.
INT snMetroRingSecPortType	1.3.6.1.4.1.1991.1.1.3.29.2.1.1.22	INTEGER	read-only	Metro ring secondary port type. other(1).....none of the cases in below. regular(2)...port is configured to operate on a single ring. tunnel(3)....port is configured to operate on multiple rings.
NUM snMetroRingPriPortActivePort	1.3.6.1.4.1.1991.1.1.3.29.2.1.1.23	InterfaceIndex	read-only	The ifIndex value of active primary port.
NUM snMetroRingSecPortActivePort	1.3.6.1.4.1.1991.1.1.3.29.2.1.1.24	InterfaceIndex	read-only	The ifIndex value of active secondary port.

RFC description

Vendor-private MIB for Brocade/Foundry metro ring protocol configuration and statistics management.

Start monitoring Brocade/Foundry FastIron metro Ethernet switch (Metro Ring Protocol) 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 FOUNDRY-SN-MRP-MIB