CISCO-AAL5-MIB

All MIBs › CISCO-AAL5-MIB

Organization: Cisco Systems, Inc.

Last Updated: 2003-09-22

Category: ATM

Description: Manages ATM Adaptation Layer 5 (AAL5) virtual circuit statistics on Cisco ATM interfaces.

Start monitoring vendor-neutral, standards-based MIB, any SNMPv3-capable network device (SNMP engine identity/boot/clock status) 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.

What Is CISCO-AAL5-MIB?

CISCO-AAL5-MIB is a Cisco enterprise MIB supplementing the standard IETF ATM MIB (RFC 1695) with Cisco-specific ATM Adaptation Layer 5 (AAL5) virtual-circuit statistics. Its data category is interface/circuit performance counters: packet and octet counts, including dropped-traffic and high-capacity 64-bit variants, per virtual circuit. Its monitoring emphasis is on traffic-health counters that also reflect the underlying hardware's cell-processing path, since a rising drop count against total traffic can point to circuit congestion or cell-layer errors on the interface. It explicitly extends and complements the standard RFC1695 ATM-MIB rather than replacing it. It is used on Cisco routers/switches carrying ATM interfaces in legacy WAN/ATM access networks. Network engineers evaluating or troubleshooting this functionality can download the CISCO-AAL5-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-AAL5-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 router/switch with ATM interfaces

Monitoring Examples

cAal5VccTable, per virtual circuit, exposes cAal5VccInPkts/OutPkts and cAal5VccInOctets/OutOctets alongside cAal5VccInDroppedPkts/OutDroppedPkts; an admin polling a VCC would compare dropped-packet counts against total packet counts to spot a circuit experiencing congestion or cell-layer errors. The high-capacity cAal5VccHCInPkts/HCOutPkts counters extend this to high-speed circuits where 32-bit counters would wrap too quickly for reliable delta-based polling.

What Can Be Monitored

AAL5 VCC packet counts (in/out)
AAL5 VCC octet counts (in/out)
dropped packet/octet counts per VCC
high-capacity (64-bit) VCC counters

Imported Objects

From ATM-MIB

aal5VccEntry

OBJECT-TYPE

From CISCO-SMI

ciscoMgmt

OBJECT-IDENTITY

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Counter64
MODULE-IDENTITY
OBJECT-TYPE

How to Use in IPNetwork Monitor

Example using cAal5VccInPkts OID:

Select a Cisco routers/switches with ATM interface 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 cAal5VccInPkts 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 AAL5 CPCS PDUs received on this AAL5 VCC at the interface associated with an AAL5 entity. 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 (in packets), 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
ciscoAal5MIB	1.3.6.1.4.1.9.9.66			Cisco Enterprise AAL5 MIB file that provide AAL5 specific information that are either excluded by RFC 1695 or specific to Cisco product.
ciscoAal5MIBObjects	1.3.6.1.4.1.9.9.66.1
cAal5Connections	1.3.6.1.4.1.9.9.66.1.1
cAal5VccTable	1.3.6.1.4.1.9.9.66.1.1.1		not-accessible	This table contains AAL5 VCC performance parameters beyond that provided by aal5VccEntry defined in RFC1695.
cAal5VccEntry	1.3.6.1.4.1.9.9.66.1.1.1.1		not-accessible	This list contains the additional AAL5 VCC performance parameters beyond that provided by aal5VccEntry defined in RFC1695.
C32 cAal5VccInPktsEx	1.3.6.1.4.1.9.9.66.1.1.1.1.1	Counter32	read-only	The number of AAL5 CPCS PDUs received on this AAL5 VCC at the interface associated with an AAL5 entity.
C32 cAal5VccOutPkts	1.3.6.1.4.1.9.9.66.1.1.1.1.2	Counter32	read-only	The number of AAL5 CPCS PDUs transmitted on this AAL5 VCC at the interface associated with an AAL5 entity.
C32 cAal5VccInOctets	1.3.6.1.4.1.9.9.66.1.1.1.1.3	Counter32	read-only	The number of AAL5 CPCS PDU octets received on this AAL5 VCC at the interface associated with an AAL5 entity.
C32 cAal5VccOutOctets	1.3.6.1.4.1.9.9.66.1.1.1.1.4	Counter32	read-only	The number of AAL5 CPCS PDU octets transmitted on this AAL5 VCC at the interface associated with an AAL5 entity.
C32 cAal5VccInDroppedPkts	1.3.6.1.4.1.9.9.66.1.1.1.1.5	Counter32	read-only	The number of AAL5 CPCS PDUs dropped at the receive side of this AAL5 VCC at the interface associated with an AAL5 entity.
C32 cAal5VccOutDroppedPkts	1.3.6.1.4.1.9.9.66.1.1.1.1.6	Counter32	read-only	The number of AAL5 CPCS PDUs dropped at the transmit side of this AAL5 VCC at the interface associated with an AAL5 entity.
C32 cAal5VccInDroppedOctets	1.3.6.1.4.1.9.9.66.1.1.1.1.7	Counter32	read-only	The number of AAL5 CPCS PDU Octets dropped at the receive side of this AAL5 VCC at the interface associated with an AAL5 entity.
C32 cAal5VccOutDroppedOctets	1.3.6.1.4.1.9.9.66.1.1.1.1.8	Counter32	read-only	The number of AAL5 CPCS PDU Octets dropped at the transmit side of this AAL5 VCC at the interface associated with an AAL5 entity.
C64 cAal5VccHCInPkts	1.3.6.1.4.1.9.9.66.1.1.1.1.9	Counter64	read-only	This is 64bit (High Capacity) version of cAal5VccInPkts counters.
C64 cAal5VccHCOutPkts	1.3.6.1.4.1.9.9.66.1.1.1.1.10	Counter64	read-only	This is 64bit (High Capacity) version of cAal5VccOutPkts counters.
C64 cAal5VccHCInOctets	1.3.6.1.4.1.9.9.66.1.1.1.1.11	Counter64	read-only	This is 64bit (High Capacity) version of cAal5VccInOctets counters.
C64 cAal5VccHCOutOctets	1.3.6.1.4.1.9.9.66.1.1.1.1.12	Counter64	read-only	This is 64bit (High Capacity) version of cAal5VccOutOctets counters.
ciscoAal5MIBConformance	1.3.6.1.4.1.9.9.66.3
ciscoAal5MIBCompliances	1.3.6.1.4.1.9.9.66.3.1
ciscoAal5MIBCompliance	1.3.6.1.4.1.9.9.66.3.1.1			The compliance statement for entities which implement this Cisco AAL5 MIB.
ciscoAal5MIBComplianceRev1	1.3.6.1.4.1.9.9.66.3.1.2			The compliance statement for entities which implement this Cisco AAL5 MIB.
ciscoAal5MIBComplianceRev2	1.3.6.1.4.1.9.9.66.3.1.3			The compliance statement for entities which implement 64bit counters for Vcc received/transmit PDU and octets objects for Cisco AAL5 MIB.
ciscoAal5MIBGroups	1.3.6.1.4.1.9.9.66.3.2
ciscoAal5MIBGroup	1.3.6.1.4.1.9.9.66.3.2.1			A collection of objects providing AAL5 related parameters.
ciscoAal5VcStatsExtMIBGroup	1.3.6.1.4.1.9.9.66.3.2.2			A collection of objects providing extension to AAL5 related vc drop statistics
ciscoAal5MIBHCGroup	1.3.6.1.4.1.9.9.66.3.2.3			A collection of objects providing 64bit AAL5 related parameters.

RFC description

Extends RFC 1695 AAL5 MIB with Cisco-specific virtual circuit and performance statistics for ATM networks.

Start monitoring Cisco routers/switches with ATM interfaces 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-AAL5-MIB