Configuring the Service Category for Data PVCs

You can use individual commands in ATM VC Configuration mode to configure each supported service category on a data PVC, or to restore the default service category, unspecified bit rate (UBR) without a peak cell rate (PCR).

For example, the following commands configure a data PVC that uses the constant bit rate (CBR) service category with a nondefault PCR (10,000 Kbps). Issuing the exit command causes the configuration to take effect.

cbr

• Use to configure the CBR service category on an ATM data PVC.
• You must specify a PCR, in Kbps, in the range 1–149760 (for OC3 ATM modules) or 1–599040 (for OC12 ATM modules).
• You must issue the exit command from ATM VC Configuration mode for the configuration to take effect.
• Example

  host1(config-subif-atm-vc)#cbr 15000

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

• Use the no version to restore the default service category, UBR without a PCR.
• See cbr.

ubr

• Use to configure the UBR service category on an ATM data PVC.
• You can optionally specify a PCR, in Kbps, in the range 0–149760 (for OC3 ATM modules) or 0–599040 (for OC12 ATM modules).
• You must issue the exit command from ATM VC Configuration mode for the configuration to take effect.
• Example

  host1(config-subif-atm-vc)#ubr 5000

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

• Use the no version to restore the default service category, UBR without a PCR.
• See ubr.

vbr-nrt

• Use to configure the variable bit rate, nonreal time (VBR-NRT) service category on an ATM data PVC.
• You must specify all of the following parameters:
  • PCR, in Kbps, in the range 0–149760 (for OC3 ATM modules) or 0–599040 (for OC12 ATM modules)
  • SCR, in Kbps, in the range 0–149760 (for OC3 ATM modules) or 0–599040 (for OC12 ATM modules)
  • Maximum burst size (MBS), in cells, in the range 0–16777215
• You must issue the exit command from ATM VC Configuration mode for the configuration to take effect.
• Example

  host1(config-subif-atm-vc)#vbr-nrt 50000 10000 150

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

• Use the no version to restore the default service category, UBR without a PCR.
• See vbr-nrt.

vbr-rt

• Use to configure the variable bit rate, real time (VBR-RT) service category on an ATM data PVC.
• You must specify all of the following parameters:
  • PCR, in Kbps, in the range 0–149760 (for OC3 ATM modules) or 0–599040 (for OC12 ATM modules)
  • SCR, in Kbps, in the range 0–149760 (for OC3 ATM modules) or 0–599040 (for OC12 ATM modules)
  • Maximum burst size (MBS), in cells, in the range 0–16777215
• You must issue the exit command from ATM VC Configuration mode for the configuration to take effect.
• Example

  host1(config-subif-atm-vc)#vbr-rt 200000 30000 400

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

• Use the no version to restore the default service category, UBR without a PCR.
• See vbr-rt.

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