Command:

frame-relay payload-compress


Mode:

Router(config-if)#

Syntax:

frame-relay payload-compress {packet-by-packet | frf9 stac[hardware-options]}

no frame-relay payload-compress {packet-by-packet | frf9 stac}


Syntax Description:

 

packet-by-packet

Packet-by-packet payload compression, using the Stacker method.

frf9 stac

(Optional) Enables FRF.9 compression using the Stacker method.

  •  

  • If the router contains a compression service adapter (CSA), compression is performed in the CSA hardware (hardware compression).
  • If the CSA is not available, compression is performed in the software installed on the VIP2 (distributed compression).
  • If the VIP2 is not available, compression is performed in the router's main processor (software compression).

     

hardware-options

distributed

(Optional) Specifies that compression is implemented in the software that is installed in a VIP2. If the VIP2 is not available, compression is performed in the router's main processor (software compression). This option applies only to the Cisco 7500 series.

software

(Optional) Specifies that compression is implemented in the Cisco IOS software installed in the router's main processor.

csa csa_number

(Optional) Specifies the CSA to use for a particular interface. This option applies only to Cisco 7200 series routers.

Command Description:

Use the frame-relay payload-compress interface configuration command to enable Stacker payload compression on a specified point-to-point interface or subinterface. To disable payload compression on a specified point-to-point interface or subinterface, use the no form of this command.

Use the frame-relay payload-compress command to enable or disable payload compression on a point-to-point interface or subinterface. Use the frame-relay map command to enable or disable payload compression on a multipoint interface or subinterface.

We recommend that you shut down the interface prior to changing encapsulation types. Although this is not required, shutting down the interface ensures the interface is reset for the new encapsulation.

Example:

The following running-config excerpt configures FRF.9 compression for subinterfaces:

!
interface Serial2/0/0
 no ip address
 no ip route-cache
 encapsulation frame-relay
 ip route-cache distributed
 no keepalive
 shutdown
!
interface Serial2/0/0.500 point-to-point
 ip address 172.16.1.4 255.255.255.0
 no cdp enable
 frame-relay interface-dlci 500 IETF
 frame-relay payload-compress FRF9 stac
!

Misconceptions:
None

Related Commands:
frame-relay map

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