ERRP-MIB

All MIBs › ERRP-MIB

Organization: NEW ADMIN MIB Working Group

Last Updated: 2010-12-14

Category: OAM

Description: Manages Ethernet Ring Redundancy Protocol state and topology information.

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What Is ERRP-MIB?

ERRP-MIB is a vendor-oriented MIB for managing Ethernet Ring Redundancy Protocol (a G.8032-style Ethernet ring protection scheme), explicitly intended, per its own description, to ease ERRP configuration via SNMP tools rather than being a pure read-only monitoring MIB. It generally covers configuration and operational state of ring instances: ring identifiers, node roles, and ring port blocking/forwarding state. As with other ring-protection MIBs, it is used to monitor the software/protocol health of an Ethernet ring, such as whether the ring is in a normal or failed/protection-switched state. It conceptually parallels ITU-T G.8032 Ethernet ring protection switching, though no specific dependent MIB names are evident here. It would be deployed on Ethernet switches/routers participating in a redundant ring topology in access or metro networks. Engineers can download the ERRP-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in ERRP-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

switches/routers implementing Ethernet Ring Redundancy Protocol (ERRP)

Monitoring Examples

No sample object names were provided for this MIB, so specific table/object identifiers cannot be cited with confidence; in general use, an operator would expect to poll ring configuration and per-ring/per-port protection-switching state to confirm the ring is in its normal (non-failed) state and to be alerted via traps if a ring segment fails over.

What Can Be Monitored

ring configuration/identifier
ring node/port role
ring protection-switching state
ring failure/recovery events

Imported Objects

From ADMIN-MASTER-MIB

gbnL2

OBJECT-IDENTITY

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter32
MODULE-IDENTITY
OBJECT-TYPE
TimeTicks
Unsigned32

From SNMPv2-TC

DisplayString
MacAddress
RowStatus
TEXTUAL-CONVENTION
TruthValue

How to Use in IPNetwork Monitor

Example using errpHealthTx OID:

Select an Ethernet switch/router implementing Ethernet Ring Redundancy Protocol (ERRP) 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 errpHealthTx 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 a count of the number of Health(or Hello) packets transmitted on this port. 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
errpMib	1.3.6.1.4.1.13464.1.2.4.7			The errp MIB is targeted at easing errp configuration via snmp tools.
errpMIBObjects	1.3.6.1.4.1.13464.1.2.4.7.1
errp	1.3.6.1.4.1.13464.1.2.4.7.1.1
INT errpOnoff	1.3.6.1.4.1.13464.1.2.4.7.1.1.1	INTEGER	read-write	Enable/disable errp function for this bridge.
I32 errpHealthTime	1.3.6.1.4.1.13464.1.2.4.7.1.1.2	Integer32	read-write	The hello timer is used by master or edge node for ring health detection. The correct operational formula: FailedTimer >= 3 * HelloTimer
I32 errpHealthTimeout	1.3.6.1.4.1.13464.1.2.4.7.1.1.3	Integer32	read-write	The timeout value used by master during ring health detection. The correct operational formula: FailedTimer >= 3 * HelloTimer
I32 errpMajorFaultTime	1.3.6.1.4.1.13464.1.2.4.7.1.1.4	Integer32	read-only	The timeout value used by assitant edge during ring health detection.
I32 errpPrefwdTimeout	1.3.6.1.4.1.13464.1.2.4.7.1.1.5	Integer32	read-only	The block timeout value used by node when portup event occurs.
errpDomainTable	1.3.6.1.4.1.13464.1.2.4.7.1.1.6		not-accessible	A table that contains domain-specific information.
errpDomainEntry	1.3.6.1.4.1.13464.1.2.4.7.1.1.6.1		not-accessible	A list of information maintained by every domain.
I32 errpDomainId	1.3.6.1.4.1.13464.1.2.4.7.1.1.6.1.1	Integer32	read-only	The domain ID is used when network is managed in unit of domain, one domain should be a set of contiguous bridges.
I32 errpMVlanId	1.3.6.1.4.1.13464.1.2.4.7.1.1.6.1.2	Integer32	read-write	The manage VLAN ID of the domain, can not be an existing vlan.
INT errpWorkMode	1.3.6.1.4.1.13464.1.2.4.7.1.1.6.1.3	INTEGER	read-write	The work mode of the domain. If standard(1) is set, then the domain works on RFC3619 standard. If huaWei(2) is set, then the domain works on RRPP standard, and is able to work together with the Huawei equipment.
ROW errpDomainRowStatus	1.3.6.1.4.1.13464.1.2.4.7.1.1.6.1.4	RowStatus	read-write	This object is used to create or delete a domain.
errpRingTable	1.3.6.1.4.1.13464.1.2.4.7.1.1.7		not-accessible	A table that contains domain-and-ring-specific information.
errpRingEntry	1.3.6.1.4.1.13464.1.2.4.7.1.1.7.1		not-accessible	A list of information maintained by every ring.
I32 errpRingId	1.3.6.1.4.1.13464.1.2.4.7.1.1.7.1.1	Integer32	read-only	The identifier of ethernet ring which reside in a domain.
I32 errpRingLevel	1.3.6.1.4.1.13464.1.2.4.7.1.1.7.1.2	Integer32	read-write	The ring level,0 means master ring, while 1 means sub ring.
INT errpBrdgRole	1.3.6.1.4.1.13464.1.2.4.7.1.1.7.1.3	INTEGER	read-write	The bridge role in ethernet ring.
I32 errpPriComPortId	1.3.6.1.4.1.13464.1.2.4.7.1.1.7.1.4	Integer32	read-write	The primary port id when bridge is master or transmit,the common port id otherwise.
I32 errpSecEdgePortId	1.3.6.1.4.1.13464.1.2.4.7.1.1.7.1.5	Integer32	read-write	The secondary port id when bridge is master or transmit,the edge port id otherwise.
ROW errpRingRowStatus	1.3.6.1.4.1.13464.1.2.4.7.1.1.7.1.6	RowStatus	read-write	This object indicates the status of this ring.
INT errpNodeState	1.3.6.1.4.1.13464.1.2.4.7.1.1.7.1.7	INTEGER	read-only	The node state in the ring. begin(0) means node is inactive or inital state. health(1) means master node detects the ring in a health state. fault(2) means master node detects the ring in a fault state. linkUp(3) means both ring ports of the transmit node are link up and in the forwarding state. linkDown(4) means at least one ring port of the transmit node is link down. preforwarding(5) means at least one ring port of the transmit node is just link up and in the blocking state. Edge node and assistant edge node are same as transmit node, but only concern about the edge port state.
INT errpPriComPortState	1.3.6.1.4.1.13464.1.2.4.7.1.1.7.1.8	INTEGER	read-only	The primary port or common port state in the ring. disabled(0) means port is link down. forwarding(1) means port is in the forwarding state. blocking(2) means port is in the blocking or discarding state.
INT errpSecEdgePortState	1.3.6.1.4.1.13464.1.2.4.7.1.1.7.1.9	INTEGER	read-only	The secondary port or edge port state in the ring. disabled(0) means port is link down. forwarding(1) means port is in the forwarding state. blocking(2) means port is in the blocking or discarding state.
INT errpQuerySolicit	1.3.6.1.4.1.13464.1.2.4.7.1.1.7.1.10	INTEGER	read-write	Enable/disable Query Solicit function of the ring.
errpRingStatsTable	1.3.6.1.4.1.13464.1.2.4.7.1.1.8		not-accessible	This table contains statistics for the ERRP ring ports.
errpRingStatsEntry	1.3.6.1.4.1.13464.1.2.4.7.1.1.8.1		not-accessible	A list of statistics maintained by every ring port. The sequence is: (domain,ring,priComPort),(domain,ring,secEdgePort), (domain,next ring,priComPort),(domain,next ring,secEdgePort),..., (next domain,ring,priComPort),(next domain,ring,secEdgePort), (next domain,next ring,priComPort),......
I32 errpRingPortId	1.3.6.1.4.1.13464.1.2.4.7.1.1.8.1.1	Integer32	read-only	The port equals to errpPriComPortId or errpSecEdgePortId of the ring within errpRingTable.
C32 errpHealthTxEx	1.3.6.1.4.1.13464.1.2.4.7.1.1.8.1.2	Counter32	read-only	A count of the number of Health(or Hello) packets transmitted on this port.
C32 errpHealthRx	1.3.6.1.4.1.13464.1.2.4.7.1.1.8.1.3	Counter32	read-only	A count of the number of Health(or Hello) packets received on this port.
C32 errpCommonFlushTx	1.3.6.1.4.1.13464.1.2.4.7.1.1.8.1.4	Counter32	read-only	A count of the number of Common Flush packets transmitted on this port.
C32 errpCommonFlushRx	1.3.6.1.4.1.13464.1.2.4.7.1.1.8.1.5	Counter32	read-only	A count of the number of Common Flush packets received on this port.
C32 errpCompleteFlushTx	1.3.6.1.4.1.13464.1.2.4.7.1.1.8.1.6	Counter32	read-only	A count of the number of Complete Flush packets transmitted on this port.
C32 errpCompleteFlushRx	1.3.6.1.4.1.13464.1.2.4.7.1.1.8.1.7	Counter32	read-only	A count of the number of Complete Flush packets received on this port.
C32 errpLinkDownTx	1.3.6.1.4.1.13464.1.2.4.7.1.1.8.1.8	Counter32	read-only	A count of the number of Link Down packets transmitted on this port.
C32 errpLinkDownRx	1.3.6.1.4.1.13464.1.2.4.7.1.1.8.1.9	Counter32	read-only	A count of the number of Link Down packets received on this port.
C32 errpLinkUpTx	1.3.6.1.4.1.13464.1.2.4.7.1.1.8.1.10	Counter32	read-only	A count of the number of Link Up packets transmitted on this port.
C32 errpLinkUpRx	1.3.6.1.4.1.13464.1.2.4.7.1.1.8.1.11	Counter32	read-only	A count of the number of Link Up packets received on this port.
C32 errpEdgeHelloTx	1.3.6.1.4.1.13464.1.2.4.7.1.1.8.1.12	Counter32	read-only	A count of the number of Edge Hello packets transmitted on this port.
C32 errpEdgeHelloRx	1.3.6.1.4.1.13464.1.2.4.7.1.1.8.1.13	Counter32	read-only	A count of the number of Edge Hello packets received on this port.
C32 errpMajorFaultTx	1.3.6.1.4.1.13464.1.2.4.7.1.1.8.1.14	Counter32	read-only	A count of the number of Major Fault packets transmitted on this port.
C32 errpMajorFaultRx	1.3.6.1.4.1.13464.1.2.4.7.1.1.8.1.15	Counter32	read-only	A count of the number of Major Fault packets received on this port.
errpTrap	1.3.6.1.4.1.13464.1.2.4.7.1.1.9
NTF errpRingNodeStateChange	1.3.6.1.4.1.13464.1.2.4.7.1.1.9.1			The node state in the ring turns to health or fault. health(1) means master node detects the ring in a health state. fault(2) means master node detects the ring in a fault state.
NTF errpPriComPortStateChange	1.3.6.1.4.1.13464.1.2.4.7.1.1.9.2			The primary port or common port state in the ring turns to disabled, forwarding, or blocking. disabled(0) means port is link down. forwarding(1) means port is in the forwarding state. blocking(2) means port is in the blocking or discarding state.
NTF errpSecEdgePortStateChange	1.3.6.1.4.1.13464.1.2.4.7.1.1.9.3			The secondary port or edge port state in the ring turns to disabled, forwarding, or blocking. disabled(0) means port is link down. forwarding(1) means port is in the forwarding state. blocking(2) means port is in the blocking or discarding state.

RFC description

ERRP (Ethernet Ring Redundancy Protocol) management for bridge ring protection. Configures ring health detection timers and port blocking for rapid failover.

Start monitoring Ethernet switch/router implementing Ethernet Ring Redundancy Protocol (ERRP) 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 ERRP-MIB