- Configuring ATM
- Multiprotocol over ATM Overview
- LAN Emulation Overview
- Configuring LAN Emulation
- Autosense of ATM PVCs and MUX SNAP Encapsulation
- MQC Policy Map on Configured VC Range ATM
- ATM OAM Ping
- OAM Segment Endpoint
- 802.1ah Support for Ethernet Infrastructure
- Define Interface Policy-Map AV Pairs AAA
- IMA Dynamic Bandwidth
- ATM Multilink PPP Support on Multiple VCs
- N:1 PVC Mapping to PWE with Nonunique VPIs
- Local Template-Based ATM PVC Provisioning
- Configuring ATM SNMP Trap and OAM Enhancements
- Configuring ATM PVC F5 OAM Recovery Traps
- Access Circuit Redundancy Support for IMA
- ATM AC VC Signaling and Provisioning
- Index
Contents
- Configuring ATM PVC F5 OAM Recovery Traps
- Finding Feature Information
- Prerequisites for ATM PVC F5 OAM Recovery Traps
- Restrictions for ATM PVC F5 OAM Recovery Traps
- Information About ATM PVC F5 OAM Recovery Traps
- F5 OAM Recovery Traps for ATM PVCs
- Benefits of F5 OAM Recovery Traps for ATM PVCs
- ATM PVC Trap Enhancements for Segment and End AIS RDI Failures
- Benefits of ATM PVC Trap Enhancements for Segment and End AIS RDI Failures
- How to Configure F5 OAM Recovery Traps for ATM PVCs
- Configuring ATM OAM Support
- Enabling OAM F5 Failure and Recovery Traps
- Troubleshooting Tips
- Configuration Examples for ATM PVC F5 OAM Recovery Traps
- Enabling OAM PVC Managment Example
- ATM PVC Extended Up and Down Notifications Examples
- ATM OAM Failure Looback Notification Examples
- Additional References
- Feature Information for ATM PVC F5 OAM Recovery Traps
Configuring ATM PVC F5 OAM Recovery Traps
The ATM PVC F5 OAM Recovery Traps feature introduces Simple Network Management Protocol (SNMP) traps that notify the administrator when a permanent virtual circuit (PVC) has recovered from F5 Operation, Administration, and Maintenance (OAM) end-to-end loopback failures, and F5 OAM alarm indication signal/remote defect indication (AIS/RDI) failures.
The ATM PVC TRAP Enhancement for Segment and End AIS / RDI failures feature adds Segment and End AIS/RDI Failure notification (traps) to the existing ATM PVC trap infrastructure.
- Finding Feature Information
- Prerequisites for ATM PVC F5 OAM Recovery Traps
- Restrictions for ATM PVC F5 OAM Recovery Traps
- Information About ATM PVC F5 OAM Recovery Traps
- How to Configure F5 OAM Recovery Traps for ATM PVCs
- Configuration Examples for ATM PVC F5 OAM Recovery Traps
- Additional References
- Feature Information for ATM PVC F5 OAM Recovery Traps
Finding Feature Information
Your software release may not support all the features documented in this module. For the latest caveats and feature information, see Bug Search Tool and the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the feature information table at the end of this module.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.
Prerequisites for ATM PVC F5 OAM Recovery Traps
Extended ATM PVC up and down traps and ATM PVC traps for OAM F5 Continuity Check (CC), OAM F5 AIS/RDI, and OAM F5 loopback failures and recoveries cannot be used at the same time as legacy ATM PVC traps.
Legacy ATM PVC traps must be disabled by using the no snmp-server enable traps atm pvc command before before extended ATM PVC up and down traps and ATM PVC traps for OAM F5 CC, OAM F5 AIS/RDI, and OAM F5 loopback failures and recoveries can be configured. If the extended ATM PVC traps or ATM OAM F5 CC traps are enabled, you must disable them by using the no snmp-server enable traps atm pvc extension command before you can enable legacy ATM PVC traps.
OAM management must be enabled on the PVC before you can use any ATM PVC traps.
Restrictions for ATM PVC F5 OAM Recovery Traps
The F5 OAM recovery traps are supported for ATM PVCs only.
The CISCO-ATM-PVCTRAP-EXTN-MIB is currently supported in Cisco IOS Release 12.0(27)S, Cisco IOS Release 12.2(33)SRE, Cisco IOS Release 15.0(1)M and later releases.
The traps associated with CC are supported only on Cisco IOS 7500 series routers with PA-A3 and PA-A1 cards and Gigabit Switch Router (GSR).
Information About ATM PVC F5 OAM Recovery Traps
- F5 OAM Recovery Traps for ATM PVCs
- Benefits of F5 OAM Recovery Traps for ATM PVCs
- ATM PVC Trap Enhancements for Segment and End AIS RDI Failures
- Benefits of ATM PVC Trap Enhancements for Segment and End AIS RDI Failures
F5 OAM Recovery Traps for ATM PVCs
F5 OAM cells are used to detect connectivity failures and recoveries at the ATM layer. Before the introduction of this feature, Cisco IOS software provided support for SNMP traps (also called SNMP notifications) for F5 end-to-end loopback, and F5 AIS/RDI connectivity failures on a PVC. The ATM PVC F5 OAM Recovery Traps feature introduces SNMP traps that notify the network management system (NMS) when connectivity is restored to a PVC after the following types of failures:
F5 OAM end-to-end loopback failures
F5 OAM segment AIS/RDI failures
F5 OAM end-to-end AIS/RDI failures
Information in the traps includes the number of PVCs that recovered and time stamps indicating when the first and last recoveries occurred during the notification interval.
To limit the amount of traffic that can be generated by the F5 OAM failure and recovery traps, only one trap of each type can be generated in each trap interval. Each trap can report on multiple PVCs, and successive PVCs that have the same failure or recovery are reported as a range.
In addition to the traps, MIB tables are maintained to provide information about the failures and recoveries on PVCs.
For a complete description of the extended ATM PVC TRAP MIB, including the supported notifications and tables, see the MIB file called CISCO-ATM-PVCTRAP-EXTN-MIB.my, available through Cisco.com at the following URL:
Benefits of F5 OAM Recovery Traps for ATM PVCs
Before the introduction of this feature, when F5 OAM failures were detected on PVCs, failure notifications were sent to the NMS, and the operational state of the PVC was kept up. There was no mechanism for notifying the NMS when connectivity was restored to the PVCs after F5 OAM failures. The F5 OAM Recovery Traps feature introduces traps that asynchronously notify the NMS when PVCs have recovered from F5 OAM failures.
ATM PVC Trap Enhancements for Segment and End AIS RDI Failures
ATM PVC trap support provides ATM PVC failure notification by sending a trap when a PVC on an ATM interface fails or leaves the UP operational state. F5 OAM cells are used to detect connectivity failures and recoveries at the ATM layer. The operator informs the NMS of these OAM failures using ATM PVC traps. The following ATM PVC Traps are supported:
ATM PVC DOWN TRAP
ATM PVC F5 Loop back failure TRAP
ATM PVC F5 Segment CC failure TRAP
ATM PVC F5 End-to-End CC failure TRAP
ATM PVC F5 AIS/RDI failure TRAP
When connectivity is restored, the PVC state is brought UP for allowing data transfer to take place over the PVC. This connectivity restoration uses the OAM cells. The following recovery traps are used to inform the NMS about the restoration of connectivity:
ATM PVC UP TRAP
ATM PVC F5 Loop back recovery TRAP
ATM PVC F5 Segment CC recovery TRAP
ATM PVC F5 End-to-End CC recovery TRAP
ATM PVC F5 AIS/RDI recovery TRAP
To limit the amount of traffic that can be generated by the F5 OAM failure and recovery traps, only one trap of each type can be generated in each trap interval. Each trap can report on multiple PVCs, and successive PVCs that have the same failure or recovery are reported as a range.
The ATM PVC Trap Enhancements for Segment and End AIS/RDI failures feature addresses the issue of generating the separate ATM F5 segment and end AIS/RDI failure and recovery traps.
Benefits of ATM PVC Trap Enhancements for Segment and End AIS RDI Failures
The ATM PVC TRAP Enhancement for Segment and End AIS/RDI Failures feature adds segment and end AIS/RDI Failure notification (traps) to the existing ATM PVC trap infrastructure. This feature adds the ifDescr object to the existing traps. The addition of this object allows the operator to get the interface name directly from the trap. The segment and end AIS/RDI failure and recovery traps are generated when AIS/RDI failure traps are enabled.
How to Configure F5 OAM Recovery Traps for ATM PVCs
Configuring ATM OAM Support
Perform this task to configure ATM OAM support on an ATM PVC.
1.
enable
2.
configure
terminal
3.
interface
atm
number
4.
ip
address
ip-address
mask
5.
pvc
[name
] vpi/vci
6.
oam-pvc
manage
[keep-vc-up [end aisrdi failure | seg aisrdi failure]]
7.
end
DETAILED STEPS
Enabling OAM F5 Failure and Recovery Traps
Perform this task to enable the MIB and SNMP notifications that support ATM OAM F5 CC management.
1.
enable
2.
configure
terminal
3.
snmp-server
enable
traps
atm
pvc
extension
{up | down | oam failure [aisrdi | loopback }
4.
end
DETAILED STEPS
Troubleshooting Tips
Use the show running-config command to verify the configuration of ATM OAM management.
Use the show atm pvccommand to verify that ATM OAM management is enabled and to display the state of the PVC.
Use the debug snmp packet command to display which SNMP traps are being generated.
Configuration Examples for ATM PVC F5 OAM Recovery Traps
- Enabling OAM PVC Managment Example
- ATM PVC Extended Up and Down Notifications Examples
- ATM OAM Failure Looback Notification Examples
Enabling OAM PVC Managment Example
The following example shows how to enable ATM PVC OAM management:
Router(config)# interface ATM 2/0.1 point-to-point Router(config-subif)# pvc pvc 45/54 Router(config-if-atm-vc)# oam-pvc manage Router(config-if-atm-vc)# end
 Note | Enhanced Interior Gateway Routing Protocol (EIGRP) must be configured on the router if you want the notification packets to be sent to the NMS. |
ATM PVC Extended Up and Down Notifications Examples
Enabling ATM PVC Extended Up and Down Notifications
The following example shows how to enable ATM PVC extended up and down notifications:
Router(config)# snmp-server community public RW Router(config)# snmp-server host 172.16.61.90 public Router(config)# snmp-server enable traps atm pvc extension up Router(config)# snmp-server enable traps atm pvc extension down Router(config)# snmp-server host 10.0.0.115 vrf Mgmt-intf version 2c public udp-port 2030
ATM PVC Down Notification
The following sample output shows an ATM PVC in the DOWN state:
Router# show atm vc
Codes: DN - DOWN, IN - INACTIVE
VCD / Peak Av/Min Burst
Interface Name VPI VCI Type Encaps SC Kbps Kbps Cells St
0/3/0.100 pvc100 0 100 PVC SNAP UBR 149760 DN
Received SNMPv2c Trap:
Community: public
From: 10.0.0.54
sysUpTimeInstance = 1918435
snmpTrapOID.0 = catmIntfPvcDownTrap
ifIndex.52 = 52
atmIntfPvcFailures.15 = 4
atmIntfCurrentlyFailingPVcls.15 = 1
ifDescr.52 = ATM0/3/0.100
catmPVclCurFailTime.52.0.100 = 1915435
catmPVclPrevRecoverTime.52.0.100 = 259552
catmPVclFailureReason.52.0.100 = catmLoopbackOAMFailure(1)
ATM PVC Up Notification
The following sample output shows an ATM PVC in the UP state:
Router# show atm vc
Codes: DN - DOWN, IN - INACTIVE
VCD / Peak Av/Min Burst
Interface Name VPI VCI Type Encaps SC Kbps Kbps Cells St
0/3/0.100 pvc100 0 100 PVC SNAP UBR 149760 UP
Received SNMPv2c Trap:
Community: public
From: 9.0.0.54
sysUpTimeInstance = 1933376
snmpTrapOID.0 = catmIntfPvcUp2Trap
ifIndex.52 = 52
catmIntfCurrentlyDownToUpPVcls.15 = 1
ifDescr.52 = ATM0/3/0.100
catmPVclCurRecoverTime.52.0.100 = 1930676
catmPVclPrevFailTime.52.0.100 = 1915435
catmPVclRecoveryReason.52.0.100 = catmLoopbackOAMRecover(1)
ATM OAM Failure Looback Notification Examples
Enabling ATM OAM Failure Loopback Notification
The following example shows how to enable ATM PVC OAM failure loopback notifications and extended up and down notifications: Router(config)# snmp-server community public RW Router(config)# snmp-server enable traps atm pvc extension up Router(config)# snmp-server enable traps atm pvc extension down Router(config)# snmp-server enable traps atm pvc extension oam failure loopback Router(config)# snmp-server host 10.0.0.115 vrf Mgmt-intf version 2c public udp-port 2030
Note | If you configure the snmp-server enable traps atm pvc extension oam failure command, you may not see up or down traps when an OAM failure trap is generated. Additionally, the PVC will stay in the UP state. |
OAM Loopback Failure Notification
The following sample output shows an ATM PVC that has failed. Note that the output indicates the PVC is still in the UP state.
Router# show atm vc
Codes: DN - DOWN, IN - INACTIVE
VCD / Peak Av/Min Burst
Interface Name VPI VCI Type Encaps SC Kbps Kbps Cells St
0/3/0.100 pvc100 0 100 PVC SNAP UBR 149760 UP
Received SNMPv2c Trap:
Community: public
From: 9.0.0.54
sysUpTimeInstance = 1964155
snmpTrapOID.0 = catmIntfPvcOAMFailureTrap
ifIndex.52 = 52
catmIntfOAMFailedPVcls.15 = 65
catmIntfCurrentOAMFailingPVcls.15 = 1
ifDescr.52 = ATM0/3/0.100
catmPVclStatusTransition.52.0.100 = 1
catmPVclStatusChangeStart.52.0.100 = 1961155
catmPVclStatusChangeEnd.52.0.100 = 1961155
OAM Loopback Recovery Notification
The following sample output shows an ATM PVC in the UP state:
Router# show atm vc
Codes: DN - DOWN, IN - INACTIVE
VCD / Peak Av/Min Burst
Interface Name VPI VCI Type Encaps SC Kbps Kbps Cells St
0/3/0.100 pvc100 0 100 PVC SNAP UBR 149760 UP
Received SNMPv2c Trap: Community: public From: 9.0.0.54 sysUpTimeInstance = 1986456 snmpTrapOID.0 = catmIntfPvcOAMRecoverTrap ifIndex.52 = 52 catmIntfOAMRcovedPVcls.15 = 10 catmIntfCurrentOAMRcovingPVcls.15 = 1 ifDescr.52 = ATM0/3/0.100 catmPVclStatusUpTransition.52.0.100 = 1 catmPVclStatusUpStart.52.0.100 = 1983456 catmPVclStatusUpEnd.52.0.100 = 1983456
Additional References
Related Documents
|
Related Topic |
Document Title |
|---|---|
|
ATM commands: complete command syntax, defaults, command mode, command history, usage guidelines, and examples. |
Cisco IOS Asynchronous Transfer Mode Command Reference |
|
Cisco IOS commands |
Standards
|
Standards |
Title |
|---|---|
|
No new or modified standards are supported by this feature. |
-- |
MIBs
|
MIBs |
MIBs Link |
|---|---|
|
To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use Cisco MIB Locator found at the following URL: |
RFCs
|
RFCs |
Title |
|---|---|
|
No new or modified RFCs are supported by this features. |
-- |
Technical Assistance
|
Description |
Link |
|---|---|
|
The Cisco Support website provides extensive online resources, including documentation and tools for troubleshooting and resolving technical issues with Cisco products and technologies. To receive security and technical information about your products, you can subscribe to various services, such as the Product Alert Tool (accessed from Field Notices), the Cisco Technical Services Newsletter, and Really Simple Syndication (RSS) Feeds. Access to most tools on the Cisco Support website requires a Cisco.com user ID and password. |
Feature Information for ATM PVC F5 OAM Recovery Traps
The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.
|
Feature Name |
Releases |
Feature Information |
|---|---|---|
|
ATM PVC F5 OAM Recovery Traps |
12.0(26)S 15.0(1)M |
The ATM PVC F5 OAM Recovery Traps feature introduces SNMP traps that notify the administrator when a PVC has recovered from F5 OAM end-to-end loopback failures and F5 OAM AIS/RDI failures. The following sections provide information about this feature: The following command was introduced: snmp-server enable traps atm pvc extension. |
|
ATM PVC Trap Enhancements for Segment and End AIS/RDI Failures |
12.0(27)S 15.0(1)M |
The ATM PVC TRAP Enhancement for Segment and End AIS/RDI failures feature adds segment and end AIS/RDI failure notification (traps) to the existing ATM PVC trap infrastructure. The following sections provide information about this feature: |