Frame relay FRF.9 stac compression configuration example

As shown in Figure 31, Router A and Router B are connected through a frame relay network. Enable frame relay compression function (FRF.9) between them.

1. Configure Router A:

   # Enable frame relay on interface Serial 2/0.

   <RouterA> system-view
   [RouterA] interface serial 2/0
   [RouterA-Serial2/0] link-protocol fr
   

   # Configure an IP address for interface Serial 2/0.

   [RouterA-Serial2/0] ip address 10.110.40.1 255.255.255.0
   

   # Configure interface Serial 2/0 to operate in DTE mode.

   [RouterA-Serial2/0] fr interface-type dte
   

   # Create an IP address map entry and enable FRF.9 compression on interface Serial 2/0.

   [RouterA-Serial2/0] fr map ip 10.110.40.2 100 compression frf9
   

2. Configure Router B:

   # Enable frame relay on interface Serial 2/0.

   <RouterB> system-view
   [RouterB] interface serial 2/0
   [RouterB-Serial2/0] link-protocol fr
   

   # Configure an IP address for interface Serial 2/0.

   [RouterB-Serial2/0] ip address 10.110.40.2 255.255.255.0
   

   # Configure interface Serial 2/0 to operate in DTE mode.

   [RouterB-Serial2/0] fr interface-type dte
   

   # Create an IP address map entry and enable FRF.9 compression on interface Serial 2/0.

   [RouterB-Serial2/0] fr map ip 10.110.40.1 100 compression frf9
   

# Ping Router B from Router A.

<RouterA> ping 10.110.40.2
  PING 10.110.40.2: 56  data bytes, press CTRL_C to break
    Reply from 10.110.40.2: bytes=56 Sequence=1 ttl=255 time=13 ms
    Reply from 10.110.40.2: bytes=56 Sequence=2 ttl=255 time=12 ms
    Reply from 10.110.40.2: bytes=56 Sequence=3 ttl=255 time=12 ms
    Reply from 10.110.40.2: bytes=56 Sequence=4 ttl=255 time=12 ms
    Reply from 10.110.40.2: bytes=56 Sequence=5 ttl=255 time=12 ms

  --- 10.110.40.2 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round-trip min/avg/max = 12/12/13 ms

# Display statistics about packet compression on Router A.

<RouterA> display fr compress
Serial2/0
 -DLCI:100
    enable frame-relay compression
    uncompressed bytes send/receive : 595/595
    compressed bytes send/receive : 159/157
    1 min  avg ratio send/receive :  0.000/0.000
    5 min  avg ratio send/receive :  0.267/0.264