CISCO-WAN-FEEDER-MIB

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Organization: Cisco Systems, Inc.

Last Updated: 2003-03-27

Category: Device Management, Vendor: Cisco Devices

Description: Manages Cisco WAN feeder (concentrator) connections aggregating traffic onto MGX backbone trunks.

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What Is CISCO-WAN-FEEDER-MIB?

CISCO-WAN-FEEDER-MIB is a Cisco Systems, Inc. enterprise MIB (under ciscoWan, imported from CISCOWAN-SMI) for configuring and monitoring feeder connections on ATM switch modules such as Cisco's BPX/IGX/MGX WAN switching platforms. Its single cwfFeederTable, indexed by an ATM virtual interface's ifIndex, models an external feeder switch (or XLMI-connected non-feeder device) that lacks native PNNI support and instead relies on a Local/Extended Management Interface (LMI/XLMI) to advertise connection information; each row carries the feeder's name, LAN and network IP addresses, remote shelf/slot/port location, feeder type (IPX, BPX, IGX, UNI, APS, VSI Controller, PAR, or non-feeder), model number, LMI admin/operational status, a hierarchical node-alarm severity (clear/minor/major/critical/unknown), row-status-based row creation/deletion, and an LMI-type flag distinguishing true feeder connections from XLMI. This gives an operator a single view of which external ATM switches are aggregated onto a WAN backbone trunk via LMI, whether each feeder link is administratively and operationally up, and whether the feeder node itself is currently alarmed. It depends on the underlying ATM virtual interface (ifType atmVirtual) being configured on the switch module. It is deployed on Cisco (originally StrataCom) BPX/IGX/MGX-family ATM WAN switches acting as feeder aggregation points, and administrators can download the CISCO-WAN-FEEDER-MIB file to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-WAN-FEEDER-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

Cisco (StrataCom-heritage) BPX/IGX/MGX-family ATM WAN switches

Monitoring Examples

An operator polls cwfFeederTable's cwfLMIOperStatus for a given cwfFeederIfNum to confirm the LMI link to an external feeder is up, and checks cwfFeederNodeAlarm for that row; an operational-up LMI status combined with a major or critical cwfFeederNodeAlarm would indicate the feeder node itself is degraded even though its LMI connectivity to the backbone switch is intact.

What Can Be Monitored

feeder LMI admin/operational status
feeder node alarm severity
feeder type and remote shelf/slot/port location
feeder row creation/deletion status
LMI type (feeder vs. XLMI)

Imported Objects

From CISCOWAN-SMI

ciscoWan

OBJECT-IDENTITY

From IF-MIB

InterfaceIndex

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Integer32
IpAddress
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

DisplayString
RowStatus

OIDs

OID symbolic	OID numeric	Type	Access	Description
ciscoWanFeederMIB	1.3.6.1.4.1.351.150.15			This MIB is used for configuring a port on an ATM switch module to be aware of feeder connection information. Terminology: AR - Auto Route, a CISCO proprietary feature, provides connection management for network with only CISCO nodes such as BPX or IGX. Feeder - An external ATM switch, which does not have PNNI feature, connected to an ATM switch that supports PNNI to provide LMI. LMI - Local Management Interface is an interface to provide a set of enhancements to Frame Relay specification for managing complex internetworks. LMI extensions include global addressing, virtual-circuit status messages, and multicasting. XLMI - The Extended LMI is a type of LMI which is implemented in an AR + PNNI network.
cwfMIBObjects	1.3.6.1.4.1.351.150.15.1
cwfFeeder	1.3.6.1.4.1.351.150.15.1.1
cwfFeederTable	1.3.6.1.4.1.351.150.15.1.1.1		not-accessible	This table contains the entries for the feeders. It is used for addition or deletion of feeders and to support LMI on the feeders. The information in these entries are advertised to LMI using a system dependent implementation when an entry is created/activated. This table can also be applicable to XLMI.
cwfFeederEntry	1.3.6.1.4.1.351.150.15.1.1.1.1		not-accessible	An entry in cwfFeederTable.
NUM cwfFeederIfNum	1.3.6.1.4.1.351.150.15.1.1.1.1.1	InterfaceIndex	not-accessible	This is an unique interface number of an ATM virtual interface. The value of this object is equal to the ifIndex of the ATM virtual interface interface identified by ifType atmVirtual(149).
STR cwfFeederName	1.3.6.1.4.1.351.150.15.1.1.1.1.2	DisplayString	read-only	This is the name of the feeder. It contains a string of length zero, if the feeder name is not available.
IP cwfLanIP	1.3.6.1.4.1.351.150.15.1.1.1.1.3	IpAddress	read-only	This is the LAN IP address of the feeder. This IP address is used for ethernet interface.
IP cwfNetIP	1.3.6.1.4.1.351.150.15.1.1.1.1.4	IpAddress	read-only	This is the network IP address of the feeder. This IP address is used for ATM interface.
I32 cwfRemoteShelf	1.3.6.1.4.1.351.150.15.1.1.1.1.5	Integer32	read-only	This is the remote shelf number of the feeder module.
I32 cwfRemoteSlot	1.3.6.1.4.1.351.150.15.1.1.1.1.6	Integer32	read-only	This is the remote slot number of the feeder module.
I32 cwfRemotePort	1.3.6.1.4.1.351.150.15.1.1.1.1.7	Integer32	read-only	This is the remote physical port(line) number of the feeder module.
INT cwfFeederType	1.3.6.1.4.1.351.150.15.1.1.1.1.8	INTEGER	read-only	This identifies the feeeder type. fdrNON(12) is applicable when cwfLMIType is xLMI(2). Other values are applicable for cwfLMIType = feeder(1). The possible values are: fdrIPX -- Feeder is an IPX node in a routing network fdrBPX -- Feeder is an BPX node in a routing network fdrIpxAF -- Feeder is a stand-alone IPX node fdrBASIS -- Feeder is a stand-alone BASIS node fdrUNKNOWN -- Feeder is unknown fdrUNI -- Feeder is a UNI AIT (phase 0) fdrAPS -- Feeder is an APS (Adjunct Processor Shelf) fdrIGX -- Feeder is an IGX node in a routing network fdrIgxAF -- Feeder is a stand-alone IGX node fdrVSI -- Feeder is an VSI Controller fdrPAR -- Feeder is a PAR fdrNON -- Non-feeder type
I32 cwfModelNumber	1.3.6.1.4.1.351.150.15.1.1.1.1.9	Integer32	read-only	This identifies the feeder model number.
INT cwfLMIAdminStatus	1.3.6.1.4.1.351.150.15.1.1.1.1.10	INTEGER	read-create	This provides the feeder LMI admin state configuration capabilities for the desired state of interface. The value of this object is ignored during row creation.
INT cwfLMIOperStatus	1.3.6.1.4.1.351.150.15.1.1.1.1.11	INTEGER	read-only	This provides the operational state of the LMI connection.
INT cwfFeederNodeAlarm	1.3.6.1.4.1.351.150.15.1.1.1.1.12	INTEGER	read-only	This identifies the feeder node alarm status. It provides the alarm status in hierarchical order where by if there are no feeder node alarms, it is signified by . If minor alarms, with no major alarms, it is signified by . If the node has one or more major alarms, irrespective of the minor alarm status, then it is signified by .
ROW cwfFeederRowStatus	1.3.6.1.4.1.351.150.15.1.1.1.1.13	RowStatus	read-create	This is used for adding or deleting a feeder entry. The row can be created by setting this object to 'createAndGo(4)'. The row can be deleted by setting this object to 'destroy(6)'. No other values are supported.
INT cwfLMIType	1.3.6.1.4.1.351.150.15.1.1.1.1.14	INTEGER	read-create	This identifies the LMI type. It identifies the type of network to which the LMI port is connected to.
cwfMIBConformance	1.3.6.1.4.1.351.150.15.3
cwfMIBCompliances	1.3.6.1.4.1.351.150.15.3.1
cwfMIBCompliance	1.3.6.1.4.1.351.150.15.3.1.1			The compliance statement for feeder group.
cwfMIBCompliance2	1.3.6.1.4.1.351.150.15.3.1.2			The Compliance statement for feeder group.
cwfMIBGroups	1.3.6.1.4.1.351.150.15.3.2
cwfFeederGroup	1.3.6.1.4.1.351.150.15.3.2.1			The objects related to configuring a feeder.
cwfFeederGroup2	1.3.6.1.4.1.351.150.15.3.2.2			The objects related to configuring feeder and non-feeder(XLMI).

RFC description

Configures feeder ATM switches and PNNI connections for AR (Auto Route) network management.

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Download CISCO-WAN-FEEDER-MIB

What Is CISCO-WAN-FEEDER-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description