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pause output and SIP

I have an 1841 as an edge router for a office of around 50 users. We are using a cloud SIP solution for voice only. We have been experieincing call quality issues and looking at the interface that is connected to our ISP I see pause output incrementing, could this be a cause for call quality to be an issue? The circuit is 100Mbs fiber handoff.

The counters were cleared 12 hours prior to this:

GigabitEthernet0/1/0 is up, line protocol is up

  Hardware is PM-3387, address is 0025.846b.e132 (bia 0025.846b.e132)

  Internet address is

  MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,

     reliability 255/255, txload 1/255, rxload 1/255

  Encapsulation ARPA, loopback not set

  Keepalive set (10 sec)

  Full-duplex, 1000Mb/s, link type is autonegotiation, media type is ZX

  output flow-control is XON, input flow-control is XON

  ARP type: ARPA, ARP Timeout 04:00:00

  Last input 00:00:00, output 00:00:00, output hang never

  Last clearing of "show interface" counters 17:58:41

  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0

  Queueing strategy: fifo

  Output queue: 0/40 (size/max)

  5 minute input rate 2785000 bits/sec, 689 packets/sec

  5 minute output rate 731000 bits/sec, 669 packets/sec

     13157925 packets input, 2864181448 bytes, 0 no buffer

     Received 52 broadcasts, 0 runts, 0 giants, 0 throttles

     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored

     0 watchdog, 0 multicast, 0 pause input

     0 input packets with dribble condition detected

     10558731 packets output, 2394745206 bytes, 0 underruns

     0 output errors, 0 collisions, 0 interface resets

     0 unknown protocol drops

     0 babbles, 0 late collision, 0 deferred

     0 lost carrier, 0 no carrier, 2356 pause output

     0 output buffer failures, 0 output buffers swapped out


Everyone's tags (5)
Hall of Fame Master

Re: pause output and SIP

You can agree with ISP to configure flow-control to be off.

That is not said will fix any voice quality issue (I believe it will not), again it's your ISP responsability to investigate.

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