Configuring F5 OAM for Data PVCs

In ATM VC Configuration mode, you can use the individual commands listed in Table 8 to configure nondefault values for F5 OAM services.

Table 8: F5 OAM Configuration Tasks and Associated Commands

For more information about OAM parameters, see Operations, Administration, and Management of ATM Interfaces .

Note: The oam-ais rdi command and the oam retry command are available only in ATM VC Configuration mode. There is no equivalent atm pvc command to configure these F5 OAM alarm surveillance and VC integrity parameters.

For example, the following commands enable VC integrity on a data PVC with a nondefault loopback frequency (30 seconds). Issuing the exit command causes the configuration to take effect.

The following commands, which are available only in ATM VC Configuration mode, configure nondefault VC integrity and alarm surveillance parameters on a data PVC. In this example, the VC integrity parameters configured with the oam retry command include the up retry count (4), down retry count (6), and retry frequency (2). The alarm surveillance parameters configured with the oam ais-rdi command include the alarm down count (2) and alarm clear timeout duration (4 seconds). Issuing the exit command causes the configuration to take effect.

oam ais-rdi

• Use to configure surveillance parameters for AIS and RDI F5 OAM fault management cells on an ATM data PVC.
• You can optionally specify the following values:
  • alarmDownCount—Number of successive alarm cells, in the range 1–60, for the router to receive before reporting that a PVC is down; the default value is 1
  • alarmClearTimeout—Number of seconds, in the range 3–60, for the router to wait before reporting that a PVC is up after the PVC has stopped receiving alarm cells; the default value is 3
• To configure these alarm surveillance parameters, you must use the oam ais-rdi command in ATM VC Configuration mode. There is no equivalent atm pvc command to configure these parameters.
• You must issue the exit command from ATM VC Configuration mode for the configuration to take effect.
• Example

  host1(config-subif-atm-vc)#oam ais-rdi 5 10

  host1(config-subif-atm-vc)#exit

• Use the no version to restore the default values for the alarm down count and alarm clear timeout duration.
• See oam ais-rdi.

oam cc

• Use to enable F5 OAM CC verification on an ATM data PVC.
• You can optionally specify one of the following values to configure CC cell flows:
  • segment—Opens an F5 OAM CC segment cell flow
  • end-to-end—Opens an F5 OAM CC end-to-end cell flow
• You must specify one of the following values to enable CC verification:
  • source—Enables this VC as the source point (cell generator)
  • sink—Enables this VC as a sink point (cell receiver)
  • both—Enables this VC as both a sink point and a source point
• You must issue the exit command from ATM VC Configuration mode for the configuration to take effect.
• Example 1—Enables CC verification with a source endpoint

  host1(config-subif-atm-vc)#oam cc source

  host1(config-subif-atm-vc)#exit

• Example 2—Opens an F5 OAM CC segment cell flow and enables CC verification with a sink endpoint

  host1(config-subif-atm-vc)#oam cc segment sink

  host1(config-subif-atm-vc)#exit

• Use the no version to disable F5 OAM CC verification and restore the default setting for cell termination, end-to-end.
• See oam cc.

oam-pvc

• Use to enable generation of F5 OAM loopback cells on an ATM data PVC and, optionally, enable F5 OAM VC integrity features on the circuit.
• Use this command only on data PVCs configured with aal5snap, aal5autoconfig, or aal5 mux ip encapsulation; the command is not valid for data PVCs configured with other encapsulation types.
• To enable F5 OAM VC integrity on the PVC, use the manage keyword.
• You can optionally specify the number of seconds, in the range 1–600, for the router to wait between the transmission of loopback cells during normal operation; the default value is 10.
• You must issue the exit command from ATM VC Configuration mode for the configuration to take effect.
• Example

  host1(config-subif-atm-vc)#oam-pvc manage 15

  host1(config-subif-atm-vc)#exit

• Use the no version to restore the default behavior, which disables F5 OAM VC integrity on the router and restores the default value for loopback frequency, 10 seconds.
• See oam-pvc/

oam retry

• Use to configure F5 OAM VC integrity parameters on an ATM data PVC.
• You can optionally specify the following values:
  • upRetryCount—Number of successive loopback cell responses, in the range 1–60, for the router to receive before reporting that a PVC is up; default value is 3
  • downRetryCount—Number of successive loopback cell responses, in the range 1–60, for the router to miss before reporting that a PVC is down; default value is 5
  • retryFrequency—Number of seconds, in the range 1–600, for the router to wait between the transmission of loopback cells when it is verifying the state of the PVC; default value is 1
• To configure these VC integrity parameters, you must use the oam retry command in ATM VC Configuration mode. There is no equivalent atm pvc command to configure these parameters.
• You must issue the exit command from ATM VC Configuration mode for the configuration to take effect.
• Example

  host1(config-subif-atm-vc)#oam retry 5 6 3

  host1(config-subif-atm-vc)#exit

• Use the no version to restore the default values for the up retry count, down retry count, and retry frequency parameters.
• See oam retry.

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