CISCO-WAN-CES-CONN-STAT-MIB

All MIBs › CISCO-WAN-CES-CONN-STAT-MIB

Organization: Cisco Systems, Inc.

Last Updated: 2002-12-24

Category: Telephony and VoIP, Vendor: Cisco Devices

Description: Monitors Cisco WAN CES connection statistics including frame counts and slip events.

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What Is CISCO-WAN-CES-CONN-STAT-MIB?

The CISCO-WAN-CES-CONN-STAT-MIB provides per-channel statistics for Circuit Emulation Service (CES) connections on Cisco MGX 8200/8800-series ATM WAN switches equipped with Circuit Emulation Service Modules (CESM). It exposes real-time performance counters such as channel state, transmit/receive ATM state, cell-loss status, reassembled and generated cell counts, header errors, pointer reframes, and lost cells. This is squarely a performance/fault counter MIB used to monitor circuit emulation channel health, where rising lost-cell or header-error counts, or an active cell-loss alarm, directly indicate TDM-over-ATM circuit degradation affecting the voice or data traffic riding that channel. It is specific to the PXM/CESM card architecture of Cisco MGX switches and complements PXM-level ATM statistics MIBs. It is deployed on Cisco MGX 8200/8800-series ATM WAN switches provisioned with CES for TDM circuit emulation. Engineers can download the CISCO-WAN-CES-CONN-STAT-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-WAN-CES-CONN-STAT-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 MGX 8200/8800-series ATM WAN switches (CESM module)

Monitoring Examples

An engineer polls cesmChanCntGrpTable/cesmChanCntGrpEntry for a channel identified by cesCntChanNum, checking cesChanState and cesXmtATMState/cesRcvATMState to confirm the channel is active. A spike in cesLostCells or cesPointerReframes combined with an active cesCellLossStatus alarm indicates the emulated TDM circuit is experiencing cell loss or clock slips, which would be correlated with jitter or underrun complaints on the emulated leased line.

What Can Be Monitored

CES channel state
transmit/receive ATM state
cell loss status/alarm
lost cells and header errors
pointer reframe (clock slip) events

Imported Objects

From BASIS-MIB

cesmChan

OBJECT-IDENTITY

From CISCOWAN-SMI

ciscoWan

OBJECT-IDENTITY

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Integer32
MODULE-IDENTITY
OBJECT-TYPE

How to Use in IPNetwork Monitor

Example using cesReassCells OID:

Select a Cisco MGX 8200/8800-series ATM WAN switch (CESM, legacy) 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 cesReassCells 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. The number of cells played out to T1/E1/T3E3 interface. 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 between polls, since a rising count of errors, failures, or discards often points to a real underlying problem. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
C32 cesBufOverflows	1.3.6.1.4.1.351.110.5.3.2.2.1.1.12	Counter32	read-only	The number of buffer overflows in Egress direction Not supported in CESM-8P due to limitation in AAL1 SAR.
C32 cesBufUnderflows	1.3.6.1.4.1.351.110.5.3.2.2.1.1.11	Counter32	read-only	The number of buffer underflows in Egress direction Not supported in CESM-8P due limitation in AAL1 SAR.
INT cesCellLossStatus	1.3.6.1.4.1.351.110.5.3.2.2.1.1.5	INTEGER	read-only	When cells are lost for the CellLossIntegrationPeriod the value is set to loss ( 2). when cells are no longer lost, the value is set to noLoss(1).
C32 cesCellSeqMismatchCnt	1.3.6.1.4.1.351.110.5.3.2.2.1.1.16	Counter32	read-only	The number of times SAR received a valid out of sequence AAL-1 cell from CellBus.
C32 cesChanSecUptime	1.3.6.1.4.1.351.110.5.3.2.2.1.1.18	Counter32	read-only	The number of seconds channel is in service This object is only applicable for CESM-8P.
INT cesChanSignalingStatus	1.3.6.1.4.1.351.110.5.3.2.2.1.1.19	INTEGER	read-only	This variable indicates the connection signalling status Connection will be in Idle suppression mode if it in on-hook. Not applicable for T3E3 and CESM-4P.
INT cesChanState	1.3.6.1.4.1.351.110.5.3.2.2.1.1.2	INTEGER	read-only	This object indicates the channel/connection status. The possible value(s) are : notConfigured (1) : Channel is not configured okay (2) : channel is ok alarm (3) : channel is in alarm. The connection segment is not broken. failed (4) : channel is failed. The connection segment is broken. This value is applicable when PXM running PNNI Control Software.
I32 cesChanStatusBitMap	1.3.6.1.4.1.351.110.5.3.2.2.1.1.20	Integer32	read-only	This variable indicates the consolidated bit map of the channel alarm state. Individual bit positions are as defined below. Bit position Fail/Alarm Reason ------------ ---------- ------ 0 Alarm Reserved 1 Alarm n/w side AIS/RDI Rx 2 Fail Conditioned(A bit from n/w) 3 Alarm Reserved 4 Fail Reserved 5 Fail Reserved 6 Alarm Reserved 7 Alarm Cell loss alarm Fail bitmap mask : 0x34 Alarm bitmap mask: 0xCB This object is not applicable to MGX Release 1.x.
I32 cesCntChanNum	1.3.6.1.4.1.351.110.5.3.2.2.1.1.1	Integer32	read-only	This object identifies the channel number of the CESM channel. The value for this object is same as the value specified in 'cesCnfChanNum'.
C32 cesGenCells	1.3.6.1.4.1.351.110.5.3.2.2.1.1.7	Counter32	read-only	The number of cells generated from T1/E1/T3E3 interface and sent towards network.
C32 cesHdrErrors	1.3.6.1.4.1.351.110.5.3.2.2.1.1.8	Counter32	read-only	The number of AAL-1 header errors detected and possibly corrected. Header errors include correctable and uncor- rectable CRC, plus bad parity.
C32 cesIngrDiscardedBytes	1.3.6.1.4.1.351.110.5.3.2.2.1.1.13	Counter32	read-only	The number of bytes discarded due to shelf alarm in ingress direction from port data. Not supported in CESM-8P.
C32 cesLostCells	1.3.6.1.4.1.351.110.5.3.2.2.1.1.10	Counter32	read-only	The number of cells lost in egress direction due to AAL 1 header errors and missing cells.
cesmChanCntGrp	1.3.6.1.4.1.351.110.5.3.2.2
cesmChanCntGrpEntry	1.3.6.1.4.1.351.110.5.3.2.2.1.1		not-accessible	An entry in the CES connection statistics table.
cesmChanCntGrpTable	1.3.6.1.4.1.351.110.5.3.2.2.1		not-accessible	The statistics table for CES connections. For every entry in cesmChanCnfGrpTable, there will be an entry in this table.
C32 cesOflowDropBytes	1.3.6.1.4.1.351.110.5.3.2.2.1.1.15	Counter32	read-only	The number of bytes discarded in Egress direction because of Egress buffer overflow Not supported in CESM-8P.
C32 cesPointerReframes	1.3.6.1.4.1.351.110.5.3.2.2.1.1.9	Counter32	read-only	The number of events in which the AAL1 reassembler found that an SDT pointer is not where it is expected and the and the pointer must be reacquired. Not supported in CESM-8P due to limitation in AAL1 SAR. Not applicable for CESM-4T1/E1 and CESM-T3/E3
INT cesRcvATMState	1.3.6.1.4.1.351.110.5.3.2.2.1.1.4	INTEGER	read-only	This variable indicates the receive state of channel on the ATM side (from the network). The possible value(s) are : other(1) : values other than mentioned below. normal(2) : Channel is ok. receivingAIS (3) : receiving AIS signal receivingFERF(4) : receiving FERF.
C32 cesReassCellsEx	1.3.6.1.4.1.351.110.5.3.2.2.1.1.6	Counter32	read-only	The number of cells played out to T1/E1/T3E3 interface. It excludes cells that were discarded for any reason.
C32 cesUflowInsCells	1.3.6.1.4.1.351.110.5.3.2.2.1.1.14	Counter32	read-only	The number of All 1's cells inserted in case of Egress Buffer Underflow Not supported in CESM-8P.
INT cesXmtATMState	1.3.6.1.4.1.351.110.5.3.2.2.1.1.3	INTEGER	read-only	This object indicates the transmit state of channel on the ATM side (towards the network). The possible value(s) are : other(1) : values other than mentioned below. normal(2) : Channel is ok. sendingAIS(3) : Sending AIS signal sendingFERF(4): Sending FERF.
ciscoWanCesConnStatMIB	1.3.6.1.4.1.351.150.43			The MIB module to provide CES Connections statistics. This MIB is supported in Circuit Emulation Service Modules(CESM) in MGX82xx, MGX88xx products. The channels and connections are used interchangeably in this mib. Terminologies Used: PXM : Processor Switch Service Module. This is the controller card used in MGX switches. CESM : Circuit Emulation Service Module. The Card supporting Circuit Emulation Service.
INT counterClrButton	1.3.6.1.4.1.351.110.5.3.2.2.1.1.17	INTEGER	read-write	This object is used for clearing the counters in this table. If set to resetCounters(2), then counters will be cleared.
cwcConnGenStatsGroup	1.3.6.1.4.1.351.150.43.2.1.1			The objects related to Circuit Emulation connection statistics applicable for multiple cards(Service Modules).
cwcConnStatCompliance	1.3.6.1.4.1.351.150.43.2.2.1			The compliance statement for broad band interface Connection Statistics MIB.
cwcConnStatMIBCompliances	1.3.6.1.4.1.351.150.43.2.2
cwcConnStatMIBConformance	1.3.6.1.4.1.351.150.43.2
cwcConnStatMIBGroups	1.3.6.1.4.1.351.150.43.2.1
cwcConnStatsGroup	1.3.6.1.4.1.351.150.43.2.1.2			The objects related to Circuit Emulation connection statistics applicable for few cards(Service Module).

RFC description

Circuit Emulation Service (CES) connection statistics on Cisco MGX switches including channel counters and metrics.

Start monitoring Cisco MGX 8200/8800-series ATM WAN switches (CESM, legacy) 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 CISCO-WAN-CES-CONN-STAT-MIB