[c-nsp] 4x E1 MLPPP max throughput?

[Doraemon Heng]

Dear All,

We are experiencing packet loss when ping from PE1 to CE2 when the traffic above 7.2Mbps.
CE1 - PE1 – PE2 – CE2 
Type of point-to-point between PE2 and CE2 is 4x E1 multilink (bandwidth 8192Kbit).

Note*** (PE1 to PE2 no packet loss)

We do see the Total output drops keep increasing even the traffic is low. Is it a normal behavior or does this caused the packet loss when PE1 ping to CE2?

Also, what is the maximum throughput can the 4x E1 multilink handle without any packet loss?

PE2#show interfaces multilink 10
Multilink10 is up, line protocol is up
  Hardware is multilink group interface
  Internet address is 10.19.60..9/30
  MTU 1500 bytes, BW 8192 Kbit, DLY 100000 usec,
     reliability 255/255, txload 180/255, rxload 107/255
  Encapsulation PPP, LCP Open, multilink Open
  Open: IPCP, loopback not set
  Keepalive set (10 sec)
  DTR is pulsed for 2 seconds on reset
  Last input 01:17:03, output never, output hang never
  Last clearing of "show interface" counters 05:24:17
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 31000
  Queueing strategy: fifo
  Output queue: 31/300 (size/max)
  30 second input rate 3440000 bits/sec, 1226 packets/sec
  30 second output rate 5802000 bits/sec, 1212 packets/sec
     22649490 packets input, 598130070 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
     22368689 packets output, 2467487460 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 output buffer failures, 0 output buffers swapped out
     0 carrier transitions


Thanks & Regards,



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