Frame-relay Compression

Compression must be configured on both ends for it to be enabled:

R5 --- FR CLOUD --- R6

R6(config)#interface s1/1
R6(config-if)#frame-relay map ip 172.14.45.5 605 payload-compression FRF9 stac

R6#ping 172.14.45.5

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 172.14.45.5, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 32/52/76 ms

R6#show compress
Serial1/1 - DLCI: 605
Compression not active
uncompressed bytes xmt/rcv 0/0
compressed bytes xmt/rcv 0/0
Compressed bytes sent: 0 bytes 0 Kbits/sec
Compressed bytes recv: 0 bytes 0 Kbits/sec
1 min avg ratio xmt/rcv 0.000/0.000
5 min avg ratio xmt/rcv 0.000/0.000
10 min avg ratio xmt/rcv 0.000/0.000
no bufs xmt 0 no bufs rcv 0
resyncs 0
Additional Stac Stats:
Transmit bytes: Uncompressed = 0 Compressed = 0
Received bytes: Compressed = 0 Uncompressed = 0

Now on R5:

R6(config)#interface s1/0
R6(config-if)#frame-relay map ip 172.14.45.6 506 payload-compression FRF9 stac

Check R6 and see compression is enabled:

R6#ping 172.14.45.5

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 172.14.45.5, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 28/76/168 ms

R6#show compress
Serial1/1 - DLCI: 605
Software compression enabled
uncompressed bytes xmt/rcv 1232/1232
compressed bytes xmt/rcv 381/382
Compressed bytes sent: 381 bytes 0 Kbits/sec ratio: 3.233
Compressed bytes recv: 382 bytes 0 Kbits/sec ratio: 3.225
1 min avg ratio xmt/rcv 0.055/0.057
5 min avg ratio xmt/rcv 0.113/0.118
10 min avg ratio xmt/rcv 0.113/0.118
no bufs xmt 0 no bufs rcv 0
resyncs 0
Additional Stac Stats:
Transmit bytes: Uncompressed = 0 Compressed = 290
Received bytes: Compressed = 291 Uncompressed = 0