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  1. FreeSWITCH
  2. FS-7756

FS is pass media from b-leg to a-leg with large delay

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Minor
    • Resolution: Not A Bug
    • Affects Version/s: 1.4.20
    • Fix Version/s: None
    • Component/s: freeswitch-core
    • Labels:
      None
    • Environment:
      CentOS7 virtualized in VMware ESXi 5.5, vm CPU has two cores
      FS managed by kazoo server, master version
      a-leg Zoiper r30798
      b-leg FreeSWITCH (Version 1.5.15b git 7add4b2 2015-03-30 19:35:55Z 64bit)
    • CPU Architecture:
      x86-64
    • Kernel:
      Linux
    • uname:
      Linux fs2.voip.rcsnet.ru 3.10.0-229.4.2.el7.x86_64 #1 SMP Wed May 13 10:06:09 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
    • Userland:
      GNU/Linux
    • Distribution:
      CentOS
    • Distribution Version:
      CentOS 7
    • lsb_release:
      Hide
      LSB Version: :core-4.1-amd64:core-4.1-noarch
      Distributor ID: CentOS
      Description: CentOS Linux release 7.1.1503 (Core)
      Release: 7.1.1503
      Codename: Core
      Show
      LSB Version: :core-4.1-amd64:core-4.1-noarch Distributor ID: CentOS Description: CentOS Linux release 7.1.1503 (Core) Release: 7.1.1503 Codename: Core
    • Compiler:
      gcc
    • Compiler Version:
      gcc version 4.8.3 20140911 (Red Hat 4.8.3-9) (GCC)
    • FreeSWITCH GIT Revision:
      b788523f76c445749dfe08a658790e36427a43b7
    • GIT Master Revision hash::
      b788523f76c445749dfe08a658790e36427a43b7
    • FSS Support Agreement Customer Number and Company name:
      Hide
      Issue is resolved after enabling "rtp-rewrite-timestamps" on sip_profile
      https://wiki.freeswitch.org/wiki/RTP_Issues

      Probable also may be fixed if quepmnet local clock will be syncronized via ntp protocol.
      Additinational info will be late
      Show
      Issue is resolved after enabling "rtp-rewrite-timestamps" on sip_profile https://wiki.freeswitch.org/wiki/RTP_Issues Probable also may be fixed if quepmnet local clock will be syncronized via ntp protocol. Additinational info will be late

      Description

      FS server receive answer from b-leg, but is pass media from b-leg to a-leg with very large delay. Delayed media packets is drop on a-leg side.

      Packet delaytion start from #250 packet in pcap file.
      When opened pcap file in Wireshark and select "Telephone" -> "RTP" -> "Show All streams". Then select stream from "91.103.196.11" - "217.12.246.114" -> "Analyze" -> select packet #324. From packet 324 and below "filtered jitt" field value is large then "ptime" value.

      Attached cal.log and Wireshark pcap file.

        Attachments

        1. call.log
          88 kB
        2. real-HW.pcap
          164 kB
        3. screen.png
          screen.png
          53 kB
        4. sip.pcap
          4.80 MB
        5. sip.pcap
          139 kB

          Activity

            People

            • Assignee:
              anthm Anthony Minessale II
              Reporter:
              safarov Sergey Safarov
            • Votes:
              0 Vote for this issue
              Watchers:
              7 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved: