S5-ETHERNET-MIB

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Organization: Nortel Networks

Last Updated: 2004-07-20

Category: Avaya BayStack Ethernet Management

Description: Manages Nortel BayStack Ethernet port configuration, counters, and operational status.

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What Is S5-ETHERNET-MIB?

S5-ETHERNET-MIB is a Nortel Networks (Bay Networks/BayStack lineage) enterprise MIB managing Ethernet interconnection and configuration for the Nortel 5000-series chassis switching platform. It exposes port interconnection mapping tables linking board/port indices to ifTable interfaces, address-collection settings, and node activity/aging interval configuration for MAC address table management. Its monitoring value covers both hardware and software status: interconnection status per port reveals physical link/backplane issues, while node inactivity and aging interval settings affect how quickly stale MAC entries are flushed, impacting switching table accuracy. It depends on the standard IF-MIB for ifIndex correlation via s5EnPIntconIfIndx. It is deployed on legacy Nortel/Bay Networks 5000-series Ethernet switches in enterprise LAN environments. Network engineers evaluating or troubleshooting this functionality can download the S5-ETHERNET-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in S5-ETHERNET-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

Nortel/Bay Networks 5000-series Ethernet switch (BayStack lineage)

Monitoring Examples

An administrator would poll s5EnPIntconTable/s5EnPIntconEntry, cross-referencing s5EnPIntconIfIndx, s5EnPIntconBrdIndx, and s5EnPIntconPortIndx to map a specific board/port combination to its interconnection status via s5EnPIntconIntconStatus. An interconnection status showing a fault or down state for a given board/port pair would indicate a backplane or port hardware issue, while adjusting s5EnNodeInactInterval and s5EnNodeAgeInterval affects how quickly the switch ages out inactive MAC address entries, useful when diagnosing stale forwarding table entries.

What Can Be Monitored

port interconnection status
board/port/ifIndex mapping
MAC address aging interval
node inactivity interval
address collection settings

Imported Objects

From S5-ROOT-MIB

s5Eth

OBJECT-IDENTITY

From S5-TCS-MIB

TimeIntervalSec

From SNMPv2-SMI

MODULE-IDENTITY
OBJECT-TYPE

OIDs

OID symbolic	OID numeric	Type	Access	Description
s5EthernetMib	1.3.6.1.4.1.45.1.6.6.0			5000 Ethernet MIB Copyright 1993-2004 Nortel Networks, Inc. All rights reserved. This Nortel Networks SNMP Management Information Base Specification (Specification) embodies Nortel Networks' confidential and proprietary intellectual property. Nortel Networks retains all title and ownership in the Specification, including any revisions. This Specification is supplied 'AS IS,' and Nortel Networks makes no warranty, either express or implied, as to the use, operation, condition, or performance of the Specification.
s5EnCfg	1.3.6.1.4.1.45.1.6.6.1
s5EnStat	1.3.6.1.4.1.45.1.6.6.2
s5EnMisc	1.3.6.1.4.1.45.1.6.6.3
s5EnPIntconTable	1.3.6.1.4.1.45.1.6.6.3.1		not-accessible	A table controlling the Interconnect status of each managed Ethernet connectivity port that is connected to the same backplane network as each NMM agent interface. The number of entries is determined by the number of managed ports connected to backplane networks which the NMM's interfaces are also connected to.
s5EnPIntconEntry	1.3.6.1.4.1.45.1.6.6.3.1.1		not-accessible	A row in the Ethernet port Interconnect control table. Entries can not be created or deleted via SNMP.
INT s5EnPIntconIfIndx	1.3.6.1.4.1.45.1.6.6.3.1.1.1	INTEGER	read-only	The index of interface on the NMM. This has the same value as ifIndex for the interface.
INT s5EnPIntconBrdIndx	1.3.6.1.4.1.45.1.6.6.3.1.1.2	INTEGER	read-only	The index of the board. This corresponds to the index of the slot containing the board.
INT s5EnPIntconPortIndx	1.3.6.1.4.1.45.1.6.6.3.1.1.3	INTEGER	read-only	The index of the port on the board. Its value ranges between 1 and index of the last manageable port on the board.
INT s5EnPIntconIntconStatus	1.3.6.1.4.1.45.1.6.6.3.1.1.4	INTEGER	read-only	The interconnection status of the port. This object tells whether the port is connected to a host or to an interconnect (defined to be another NMM or a bridge that is sending hello messages). The values are: other(1)..........unknown or host interconnect(2)...identified as interconnect port The NMM agent will assign this object the value other(1) on initialization. If it sees hello messages coming in on the port, it will change the interconnection status to be interconnect(2).
INT s5EnPIntconAddrCollect	1.3.6.1.4.1.45.1.6.6.3.1.1.5	INTEGER	read-write	This object tells whether the NMM should collect node address information from this port for the Find Nodes and Show Nodes tables. By default, the node addresses are collected only from ports that are not identified as interconnect ports. This object provides a means of overriding the default for collection and checking of node addresses. The values are: default(1).........follow default rules for address collection neverCollect(2)....don't collect addrs, whatever intercon status alwaysCollect(3)...do collect address, regardless of config Setting this variable to default(1) tells the NMM to collect and check addresses if and only the port has not been identified as an interconnect port. To disable node address collection on a port, set this object to neverCollect(2). To collect node addresses for an interconnect port, set this object to alwaysCollect(3). To restore the 'natural' value for the port, set this object to default(1).
NUM s5EnNodeInactInterval	1.3.6.1.4.1.45.1.6.6.3.2	TimeIntervalSec	read-write	The time interval in seconds used to change the status of an entry in the Show Nodes Table (found in the 5000 Common Stats MIB) from active to inactive. When a station has not sent a frame within the time interval represented by this object, the status for the corresponding entry is set to inactive.
NUM s5EnNodeAgeInterval	1.3.6.1.4.1.45.1.6.6.3.3	TimeIntervalSec	read-write	The time interval in seconds used for aging out entries in the Show Nodes and Find Nodes Tables (found in the 5000 Common Stats MIB). When a station has not sent a frame within the time interval represented by this object, the corresponding entry is removed from the two tables.

RFC description

Ethernet port interconnect control and statistics for Nortel/Avaya S5000 backbone switches.

Start monitoring Nortel/Bay Networks 5000-series Ethernet switch, BayStack lineage (port interconnection/MAC aging) 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 S5-ETHERNET-MIB

What Is S5-ETHERNET-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description