Re: RE : Frame Relay Traffic Shaping

From: gladston@br.ibm.com
Date: Tue Aug 31 2004 - 11:03:18 GMT-3


Without Fragment

r3#sh int ser 0
Serial0 is up, line protocol is up
  Hardware is HD64570
  MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation FRAME-RELAY, loopback not set
  Keepalive set (10 sec)
  LMI enq sent 49515, LMI stat recvd 49515, LMI upd recvd 0, DTE LMI up
  LMI enq recvd 0, LMI stat sent 0, LMI upd sent 0
  LMI DLCI 1023 LMI type is CISCO frame relay DTE
  FR SVC disabled, LAPF state down
  Broadcast queue 0/64, broadcasts sent/dropped 0/1, interface broadcasts 0
  Last input 00:00:03, output 00:00:03, output hang never
  Last clearing of "show interface" counters 5d17h
  Queueing strategy: fifo
  Output queue 0/40, 0 drops; input queue 0/75, 0 drops
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     126422 packets input, 5709168 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     79423 packets output, 2259649 bytes, 0 underruns
     0 output errors, 0 collisions, 1 interface resets
     0 output buffer failures, 0 output buffers swapped out
     2 carrier transitions

With Fragment

r3#sh conf

interface Serial0
 no ip address
 encapsulation frame-relay
 ip ospf network point-to-point
 frame-relay traffic-shaping
 frame-relay lmi-type cisco
!
interface Serial0.32 multipoint
 ip address 172.16.23.3 255.255.255.0
 frame-relay class Frame
 frame-relay map ip 172.16.23.2 302 broadcast
!
map-class frame-relay Frame
 no frame-relay adaptive-shaping
 frame-relay fair-queue
 frame-relay fragment 80

r3#sh int ser 0
Serial0 is up, line protocol is up
  Hardware is HD64570
  MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation FRAME-RELAY, loopback not set
  Keepalive set (10 sec)
  LMI enq sent 49521, LMI stat recvd 49521, LMI upd recvd 0, DTE LMI up
  LMI enq recvd 0, LMI stat sent 0, LMI upd sent 0
  LMI DLCI 1023 LMI type is CISCO frame relay DTE
  FR SVC disabled, LAPF state down
  Broadcast queue 0/64, broadcasts sent/dropped 0/1, interface broadcasts 0
  Last input 00:00:03, output 00:00:03, output hang never
  Last clearing of "show interface" counters 5d17h
  Queueing strategy: dual fifo
  Output queue: high size/max/dropped 0/256/0
  Output queue 0/128, 0 drops; input queue 0/75, 0 drops
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     126438 packets input, 5709892 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     79433 packets output, 2259941 bytes, 0 underruns
     0 output errors, 0 collisions, 2 interface resets
     0 output buffer failures, 0 output buffers swapped out
     2 carrier transitions
     DCD=up DSR=up DTR=up RTS=up CTS=up

As you can see, I configured fragment on the subinterface 0.32; considering this, does the priority traffic from the subinterface 0.134 will go to the priority FIFO queue?



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