CISCO-LES-MIB

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Category: ATM, Cisco Devices

Description: Manages ATM LANE Emulation Server (LES) and Broadcast and Unknown Server (BUS) configuration.

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What Is CISCO-LES-MIB?

CISCO-LES-MIB manages ATM LAN Emulation Server (LES) and co-located Broadcast and Unknown Server (BUS) instances on Cisco ATM switching and routing equipment. It belongs to the legacy ATM/LAN Emulation (LANE) technology area, where Ethernet-style broadcast domains are emulated over ATM networks. It exposes configuration data such as ELAN names, ATM addresses, and interface associations for each LES/BUS instance, giving administrators visibility into the emulated LAN's addressing and binding state. Rather than classic hardware health metrics, it is used to monitor the operational status and configuration consistency of LANE services—confirming that a LES is correctly bound to its ATM address, interface, and BUS peer, which is critical for diagnosing broadcast/unknown-frame handling faults in an ELAN. It is typically deployed on legacy Cisco ATM switches and routers running LAN Emulation in networks that bridge Ethernet segments over an ATM backbone. Engineers can download the CISCO-LES-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-LES-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 ATM switch/router with LAN Emulation (LANE) support

Monitoring Examples

An administrator walks the lesTable/lesEntry to check lesElanName, lesAtmAddrActual, and lesIfIndex for a given LES instance, confirming the server's actual negotiated ATM address matches its configured lesAtmAddrSpec/lesAtmAddrMask. Discrepancies, or an unexpected lesColocBusAtmAddrActl value, indicate the co-located BUS failed to bind correctly, which would disrupt broadcast/unknown traffic flooding for that emulated LAN.

What Can Be Monitored

LES/BUS instance configuration per ELAN
ATM address binding (spec vs actual)
interface and sub-interface association
co-located BUS address status

Imported Objects

From CISCO-BUS-MIB

CiscoVciInteger
CiscoVpiInteger

From CISCO-SMI

ciscoMgmt

OBJECT-IDENTITY

From LAN-EMULATION-CLIENT-MIB

AtmLaneAddress

From RFC-1212

OBJECT-TYPE

From SNMPv2-SMI-v1

Counter32
Integer32

From SNMPv2-TC-v1

DisplayString
MacAddress
RowStatus
TimeStamp

OIDs

OID symbolic	OID numeric	Type	Access	Description
ciscoLesClientGroup	1.3.6.1.4.1.9.9.39.2.1.7
ciscoLesCntrlDistGroup	1.3.6.1.4.1.9.9.39.2.1.5
ciscoLesColocatedGroup	1.3.6.1.4.1.9.9.39.2.1.3
ciscoLesGroup	1.3.6.1.4.1.9.9.39.2.1.1
ciscoLesLecsGroup	1.3.6.1.4.1.9.9.39.2.1.4
ciscoLesMIB	1.3.6.1.4.1.9.9.39
ciscoLesMIBCompliance	1.3.6.1.4.1.9.9.39.2.2.1
ciscoLesMIBCompliances	1.3.6.1.4.1.9.9.39.2.2
ciscoLesMIBConformance	1.3.6.1.4.1.9.9.39.2
ciscoLesMIBGroups	1.3.6.1.4.1.9.9.39.2.1
ciscoLesMIBObjects	1.3.6.1.4.1.9.9.39.1
ciscoLesStatsGroup	1.3.6.1.4.1.9.9.39.2.1.2
ciscoLesSubIfGroup	1.3.6.1.4.1.9.9.39.2.1.6
ciscoLesTokenRingGroup	1.3.6.1.4.1.9.9.39.2.1.8
leClient	1.3.6.1.4.1.9.9.39.1.2
les	1.3.6.1.4.1.9.9.39.1.1
INT lesAdminStatus	1.3.6.1.4.1.9.9.39.1.1.1.1.19	INTEGER	read-write	The desired state of the designated LES as prescribed by the operator. The actions of the agent will, if at all possible, eventually result in the desired state being reflected in the lesOperStatus.
ADR lesAtmAddrActual	1.3.6.1.4.1.9.9.39.1.1.1.1.5	AtmLaneAddress	read-only	The resultant ATM address in use by the LES. This object is a product of the specified ATM address, mask and interaction with the switch via the ILMI.
OCT lesAtmAddrMask	1.3.6.1.4.1.9.9.39.1.1.1.1.4	OCTET STRING	read-write	An address mask that when used with the lesAtmAddrSpec specifies the portion of the LES' ATM address that is desired to be configured. Note that setting this object will result in the reinitialization of the LES,consequently dropping all clients connected to it. Note that this object cannot be set at row creation time without also supplying a value for the lesAtmAddrSpec object. If the LES ATM address is omitted at creation time then this object defaults to the value of all zeros (none of the lesAtmAddrSpec value is relevant). If the LES ATM address is specified at creation time but this object omitted, then this object defaults to the value of all ones (all of the lesAtmAddrSpec is relevant).
ADR lesAtmAddrSpec	1.3.6.1.4.1.9.9.39.1.1.1.1.3	AtmLaneAddress	read-write	The ATM address of the designated LES. Note that setting this object will have the side effect of reinitializing the LES and consequently dropping all clients connected to it. If this object is not specified at row creation time then the LES will choose a value for itself and attempt to register with the switch with that value. If an address is specified which is not acceptable to the switch then the lesOperStatus will remain inactive until an acceptable address is set.
ADR lesClientAtmAddr	1.3.6.1.4.1.9.9.39.1.2.1.1.2	AtmLaneAddress	read-only	The primary ATM address associated with the designated LEC.
NUM lesClientControlVci	1.3.6.1.4.1.9.9.39.1.2.1.1.6	CiscoVciInteger	read-only	The VCI of the bi-directional control direct connection between the LEC and LES.
NUM lesClientControlVpi	1.3.6.1.4.1.9.9.39.1.2.1.1.5	CiscoVpiInteger	read-only	The VPI of the bi-directional control direct connection between the LEC and LES.
lesClientEntry	1.3.6.1.4.1.9.9.39.1.2.1.1		not-accessible	An entry (conceptual) row that denotes a client that is joined with the LES.
I32 lesClientIfIndex	1.3.6.1.4.1.9.9.39.1.2.1.1.4	Integer32	read-only	The interface of the bi-directional control direct connection between the LEC and LES.
INT lesClientLecid	1.3.6.1.4.1.9.9.39.1.2.1.1.1	INTEGER	not-accessible	The LECID selected for an LEC by the LES during the JOIN phase.
INT lesClientState	1.3.6.1.4.1.9.9.39.1.2.1.1.3	INTEGER	read-only	The current state of the LEC. Note that busConnect is only a monitorable state if the BUS is colocated with the LES. In the event that it is not then the client state should proceed immediately to operational within this table (though it may not do so in actuality). Note that there is no relation between the client's internal state and the state reflected here. The state here is only the LES's observed state of the LEC.
ROW lesClientStatus	1.3.6.1.4.1.9.9.39.1.2.1.1.7	RowStatus	read-write	The status of the (conceptual) row. Note that this object may only return the active(1) state. The only value which may be written to this object is the destroy(6) state which will cause the client to be dropped from the ELAN.
lesClientTable	1.3.6.1.4.1.9.9.39.1.2.1		not-accessible	A (conceptual) table listing the clients associated with a LES. Note that the local or network management will not create or destroy rows in this table but may only inspect what LECs are currently joined with the LES.
ADR lesColocBusAtmAddrActl	1.3.6.1.4.1.9.9.39.1.1.1.1.10	AtmLaneAddress	read-only	The ATM address in use by the BUS. This object is a product of the specified ATM address, its mask and interaction with the switch through the ILMI.
OCT lesColocBusAtmAddrMask	1.3.6.1.4.1.9.9.39.1.1.1.1.9	OCTET STRING	read-write	An address mask that when used with the lesColocatedBusAtmAddr specifies the portion of the BUS' ATM address desired by management. Note that setting this object will have the side effect of reinitializing the BUS and consequently dropping all clients connected to it. Note that this object cannot be set at row creation time without also supplying a value for the lesColocBusAtmAddrSpec object. If the BUS ATM address is omitted at creation time then this object defaults to the value of all zeros (none of the lesColocBusAtmAddrSpec value is relevant). If the BUS ATM address is specified at creation time but this object omitted, then this object defaults to the value of all ones (all of the lesColocBusAtmAddrSpec is relevant).
ADR lesColocBusAtmAddrSpec	1.3.6.1.4.1.9.9.39.1.1.1.1.8	AtmLaneAddress	read-write	For those implementations who do not allow the separate creation/deletion of the LES and BUS this object allows the operator to specify the ATM address of the BUS at LES creation time. For implementations that allow separate process creation this object is optional. Otherwise this is the ATM address of the designated BUS. Note that setting this object will have the side effect of reinitializing the BUS and consequently dropping all clients connected to it. If this object is not specified at row creation time then the BUS will choose a value for itself and attempt to register with the switch with that value. If an address is specified which is not acceptable to the switch then the busOperStatus will remain inactive until an acceptable address is set.
NUM lesControlDistVci	1.3.6.1.4.1.9.9.39.1.1.1.1.17	CiscoVciInteger	read-only	The virtual channel identifier of the control distribute VCC to all clients, if it exists.
NUM lesControlDistVpi	1.3.6.1.4.1.9.9.39.1.1.1.1.16	CiscoVpiInteger	read-only	The virtual path identifier of the control distribute VCC to all clients, if it exits.
STR lesElanName	1.3.6.1.4.1.9.9.39.1.1.1.1.1	DisplayString	not-accessible	The name associated with the emulated LAN which this LES services.
lesEntry	1.3.6.1.4.1.9.9.39.1.1.1.1		not-accessible	An entry (conceptual row) in the lesTable.
I32 lesIfIndex	1.3.6.1.4.1.9.9.39.1.1.1.1.6	Integer32	read-write	The interface that a LES will receive control connections on. The value specified for this object must equate to a value of ifIndex in the ifTable. The interface will be for that particular ATM port (the physical interface, not a logical layer on top of it). This object can only be specified upon row creation and cannot be altered there after.
C32 lesInConfigFails	1.3.6.1.4.1.9.9.39.1.1.2.1.10	Counter32	read-only	The number of rejection LE_CONFIGURE_RESPONSEs received by this LES since activation.
C32 lesInConfigResps	1.3.6.1.4.1.9.9.39.1.1.2.1.9	Counter32	read-only	The number of successful LE_CONFIGURE_RESPONSEs received by this LES since activation.
I32 lesIndex	1.3.6.1.4.1.9.9.39.1.1.1.1.2	Integer32	not-accessible	A unique identifier for this LES servicing this ELAN. This value must remain constant while the entry is in existence and during the operation of the agent (i.e. It is allowed to change after reboot). For implementations that do not allow more than one LES entity per ELAN per device, it is sufficient to always report 1 for this object and to only accept one for row creation.
ADR lesInErrorLastLec	1.3.6.1.4.1.9.9.39.1.1.2.1.2	AtmLaneAddress	read-only	The ATM address of the LE client whose last frame to the LES resulted in an increment to the lesInErrors counter.
C32 lesInErrors	1.3.6.1.4.1.9.9.39.1.1.2.1.1	Counter32	read-only	The number of frames received by the LES which were either malformed or did not follow standard protocol (i.e. receiving a LE-ARP request for a multicast address).
C32 lesInFlushReplies	1.3.6.1.4.1.9.9.39.1.1.2.1.3	Counter32	read-only	The number of Flush replies that have been received by the LES and forwarded onto its clients.
C32 lesInJoinReqs	1.3.6.1.4.1.9.9.39.1.1.2.1.4	Counter32	read-only	The number of LE_JOIN_REQUESTs received by this LES since activation.
C32 lesInLearpBroadcasts	1.3.6.1.4.1.9.9.39.1.1.2.1.17	Counter32	read-only	The number of LE_ARP_REQUEST received by the LES for the broadcast address. These requests are responded to with the BUS' ATM address.
C32 lesInLearpResps	1.3.6.1.4.1.9.9.39.1.1.2.1.19	Counter32	read-only	The number of LE_ARP_RESPONSEs received by this LES and forwarded onto the control distribute.
C32 lesInLearpUcasts	1.3.6.1.4.1.9.9.39.1.1.2.1.16	Counter32	read-only	The number of LE_ARP_REQUESTs received by this LES since activation and responded to directly. This applies to all LE_ARP requests for addresses registered by LE clients with the LES. Note that a LES is not required to answer LE_ARP requests directly and may forward the request on to the control distribute regardless. This counter does not apply to those requests the BUS (the broadcast address).
C32 lesInNarpReqs	1.3.6.1.4.1.9.9.39.1.1.2.1.20	Counter32	read-only	The number of Negative LE_ARP requests received by this LES and forwarded on to the control distribute VC.
C32 lesInRegisReqs	1.3.6.1.4.1.9.9.39.1.1.2.1.11	Counter32	read-only	The number of LE_REGISTER_REQUESTs received by this LES since activation.
C32 lesInTopolReqs	1.3.6.1.4.1.9.9.39.1.1.2.1.21	Counter32	read-only	The number of LE_TOPOLOGY_REQUESTs received by this LES since activation.
C32 lesInUnregReqs	1.3.6.1.4.1.9.9.39.1.1.2.1.15	Counter32	read-only	The number of valid LE_UNREGISTER_REQUESTs received by this LES since activation.
I32 lesJoinLastFailCause	1.3.6.1.4.1.9.9.39.1.1.2.1.6	Integer32	read-only	The cause for the transmission of the last rejection LE_JOIN_RESPONSE. This is the value of the status field within the rejection response. If the server has never issued a rejection response then this object will have the value of 0.
ADR lesJoinLastFailLec	1.3.6.1.4.1.9.9.39.1.1.2.1.7	AtmLaneAddress	read-only	The ATM address of the client whose last LE_JOIN_REQUEST resulted in a rejection by this server. If the server has never issued a rejection response then this object will have the value of all 0's (i.e. 0x000...).
INT lesJoinTimeout	1.3.6.1.4.1.9.9.39.1.1.1.1.14	INTEGER	read-write	The number of seconds that must elapse before a Join request can be timed-out.
INT lesLanType	1.3.6.1.4.1.9.9.39.1.1.1.1.12	INTEGER	read-write	The type of legacy LAN that this LES emulates.
ADR lesLecsAtmAddr	1.3.6.1.4.1.9.9.39.1.1.1.1.15	AtmLaneAddress	read-write	The ATM address associated with the LECS used by this LES. If no LECS is in use by the LES then this object will have the value of all 0's (i.e 0x0000...). If it is desired that the LES get the address of the LECS through the ILMI then this object may be left unspecified at row activation. If the ILMI fails then the lesOperStatus will be inactive(2) and this column still not present.
ADR lesMacRegAtmAddr	1.3.6.1.4.1.9.9.39.1.3.1.1.3	AtmLaneAddress	read-only	The ATM address of the LEC that corresponds to the registered MAC address.
lesMacRegEntry	1.3.6.1.4.1.9.9.39.1.3.1.1		not-accessible	An entry (conceptual row) that denotes a registered MAC address and the ATM address that corresponds to it.
INT lesMacRegLecid	1.3.6.1.4.1.9.9.39.1.3.1.1.4	INTEGER	read-only	The LECID of the client who registered the designated MAC address.
MAC lesMacRegMacAddress	1.3.6.1.4.1.9.9.39.1.3.1.1.1	MacAddress	not-accessible	The MAC address of a registered client.
lesMacRegTable	1.3.6.1.4.1.9.9.39.1.3.1		not-accessible	A (conceptual) table of MAC addresses registered with the LES by its clients.
INT lesMaxFrm	1.3.6.1.4.1.9.9.39.1.1.1.1.13	INTEGER	read-write	The maximum frame size that the specified LAN type can accept.
INT lesOperStatus	1.3.6.1.4.1.9.9.39.1.1.1.1.18	INTEGER	read-only	This object reflects the actual state of the LES which may differ from that of the lesAdminStatus object. This can occur when the interface ifOperStatus is 'down' but the corresponding lesAdminStatus is 'active'.
C32 lesOutConfigReqs	1.3.6.1.4.1.9.9.39.1.1.2.1.8	Counter32	read-only	The number of LE_CONFIGURE_REQUESTs sent by this LES since activation.
C32 lesOutJoinFails	1.3.6.1.4.1.9.9.39.1.1.2.1.5	Counter32	read-only	The number of rejection LE_JOIN_RESPONSEs transmitted by this LES since activation.
C32 lesOutLearpFwd	1.3.6.1.4.1.9.9.39.1.1.2.1.18	Counter32	read-only	The number of LE_ARP_REQUEST frames forwarded onto the control distribute VC.
C32 lesOutRegisFails	1.3.6.1.4.1.9.9.39.1.1.2.1.12	Counter32	read-only	The number of rejection LE_REGISTER_RESPONSEs transmitted by this LES since activation.
ADR lesRDRegAtmAddr	1.3.6.1.4.1.9.9.39.1.3.2.1.3	AtmLaneAddress	read-only	The ATM address of the LEC that corresponds to the registered Route Descriptor.
INT lesRDRegBridgeNum	1.3.6.1.4.1.9.9.39.1.3.2.1.2	INTEGER	not-accessible	The bridge number of a registered client going to the designated segment.
lesRDRegEntry	1.3.6.1.4.1.9.9.39.1.3.2.1		not-accessible	An entry (conceptual row) that denotes a registered Route Descriptor address and the ATM address that corresponds to it.
INT lesRDRegLecid	1.3.6.1.4.1.9.9.39.1.3.2.1.4	INTEGER	read-only	The LECID of the client who registered the designated Route Descriptor address.
INT lesRDRegSegmentId	1.3.6.1.4.1.9.9.39.1.3.2.1.1	INTEGER	not-accessible	The segment ID of a registered client.
lesRDRegTable	1.3.6.1.4.1.9.9.39.1.3.2		not-accessible	A (conceptual) table of Route Descriptors registered with the LES by its clients.
I32 lesRegisLastFailCause	1.3.6.1.4.1.9.9.39.1.1.2.1.13	Integer32	read-only	The cause for the transmission of the last rejection LE_REGISTER_RESPONSE. This variable has the value of the status field within the last failure register response. If the server has never issued a failed registration response then the value of this object shall be 0.
ADR lesRegisLastFailLec	1.3.6.1.4.1.9.9.39.1.1.2.1.14	AtmLaneAddress	read-only	The ATM address of the client whose last LE_REGISTER_REQUEST to this LES resulted in failure. If the server has never issued a failed registration response then the value of this object shall be all 0's (i.e. x0000...).
INT lesSegmentID	1.3.6.1.4.1.9.9.39.1.1.1.1.21	INTEGER	read-write	The segment ID of the emulated LAN this LES is servicing. This object is only valid if the lesLanType is dot5(2).
lesStatsEntry	1.3.6.1.4.1.9.9.39.1.1.2.1		not-accessible	A (conceptual) row in the lesStatsTable which corresponds to the statistics kept by a particular instance of a LES.
lesStatsTable	1.3.6.1.4.1.9.9.39.1.1.2		not-accessible	A (conceptual) table of statistics associated with LES instances on the device.
ROW lesStatus	1.3.6.1.4.1.9.9.39.1.1.1.1.20	RowStatus	read-write	The status of this entry (conceptual row). This row cannot be set to active until an appropiate value of lesIfIndex has been specified.
I32 lesSubIfNum	1.3.6.1.4.1.9.9.39.1.1.1.1.7	Integer32	read-write	Specifies the sub-interface number that the LES will reside on. This sub-interface may be shared with a LEC or BUS of the same ELAN but is not required to do so. If no value is specified for this object at row creation time, then a sub-interface will be chosen by the agent. This object may only be specified at row creation time and cannot be altered thereafter.
lesTable	1.3.6.1.4.1.9.9.39.1.1.1		not-accessible	A (conceptual) table containing all instances of LESs on this device.
TIM lesUpTime	1.3.6.1.4.1.9.9.39.1.1.1.1.11	TimeStamp	read-only	The value of sysUpTime when this LES became activated.
register	1.3.6.1.4.1.9.9.39.1.3

RFC description

Manages LAN Emulation Service (LANE) configuration and status on Cisco ATM devices.

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Download CISCO-LES-MIB

What Is CISCO-LES-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

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RFC description