[cisco-ttl] g.shdsl voip QoS sorunu

From: artun kocaman <artunkocaman_at_....>
Date: Mon Sep 18 2006 - 10:49:37 EEST

  merhaba,
  cisco 1721 router'larýmýzýn üzerinde wic-1shdslv3 modüller takýlý ve üzerinden 512k g.shdsl kullanýyoruz.   ayný zamanda seri interface üzerinden 256k frame relay baðlantýmýz mevcut.   (bu baðlantý þimdilik kullanýlmýyor)
  bu baðlantýlar üzerinden data ile voice uygulamamýz var.   daha önce frame relay üzerinden çalýþan qos konfigürasyonum atm üzerinden çalýþmýyor. daha doðrusu þöyle bir durum sözkonusu:   merkezden þubeye doðru up trafiði coþtuðunda (400k'yý geçtiðinde) þube bizi kesinlikle duyamamaya baþlýyor ama biz onlarý gayet rahat duyuyoruz.   qos bariz bir þekilde çalýþmýyor.
  aþaðýdaki çýktýlardan da görebileceðiniz gibi policy'yi kontrol ettiðimde merkezdeki router'da match eden paketleri görürken bu sayý þubedeki router'da yok denecek kadar az. router'larda ayný access-list (source-destination ip'ler ters olacak þekilde) ve ayný policy kullanýlýyor ancak birinde match ediyor diðerinde etmiyor. üstelik az önce de belirttiðim gibi f/r interface'inde çatýr çatýr çalýþýyor bu qos.   konfigürasyonumu bir inceleyip bana yardýmcý olursanýz çok sevinirim.   controller DSL 0
  mode atm
  line-term cpe
  line-mode auto
  dsl-mode shdsl symmetric annex B
!

  class-map match-all atm_voice
  description voice_qos
  match access-group 111
!
!

  policy-map voice
  class atm_voice
  priority percent 25
  class class-default
  fair-queue
!
!
!
!

  interface ATM0
  mtu 1492
  bandwidth 512000
  no ip address
  no atm ilmi-keepalive
!

  interface ATM0.1 point-to-point
  mtu 1492
  bandwidth 512000
  ip address x.x.x.x x.x.x.x
  pvc 0 0/35
  vbr-nrt 512 512
  encapsulation aal5snap
  service-policy output voice
!

---

  merkezin show policy çýktýsý
  #show policy-map interface atm0.1
  ATM0.1: VC 0/35 -
  Service-policy output: voice
  Class-map: atm_voice (match-all)
  30941 packets, 2985810 bytes
  5 minute offered rate 0 bps, drop rate 0 bps   Match: access-group 111
  Queueing
  Strict Priority
  Output Queue: Conversation 40
  Bandwidth 25 (%)
  Bandwidth 128 (kbps) Burst 3200 (Bytes)   (pkts matched/bytes matched) 2089/162689   (total drops/bytes drops) 0/0
  Class-map: class-default (match-any)
  365288 packets, 303546574 bytes
  5 minute offered rate 78000 bps, drop rate 0 bps   Match: any
  Queueing
  Flow Based Fair Queueing
  Maximum Number of Hashed Queues 32
  (total queued/total drops/no-buffer drops) 0/23/0

---

  þubenin show policy çýktýsý
  #show policy-map interface atm0.1
  ATM0.1: VC 0/35 -
  Service-policy output: ankara_voice
  Class-map: atm_voice (match-all)
  28258 packets, 2087319 bytes
  5 minute offered rate 0 bps, drop rate 0 bps   Match: access-group 111
  Queueing
  Strict Priority
  Output Queue: Conversation 40
  Bandwidth 25 (%)
  Bandwidth 128 (kbps) Burst 3200 (Bytes)   (pkts matched/bytes matched) 12/819
  (total drops/bytes drops) 0/0
  Class-map: class-default (match-any)
  241609 packets, 36403873 bytes
  5 minute offered rate 4000 bps, drop rate 0 bps   Match: any
  Queueing
  Flow Based Fair Queueing
  Maximum Number of Hashed Queues 32
  (total queued/total drops/no-buffer drops) 0/0/0    

  gördüðünüz gibi match eden paketler sayýlarýnda ciddi fark var.   ios versiyonlarý da ayný. hatta show version da þöyle birþey:   #show version
  Cisco IOS Software, C1700 Software (C1700-IPBASE-M), Version 12.4(6)T2, RELEASE SOFTWARE (fc1) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2006 by Cisco Systems, Inc.   Compiled Tue 16-May-06 11:57 by kellythw   ROM: System Bootstrap, Version 12.2(7r)XM1, RELEASE SOFTWARE (fc1)   ROM: C1700 Software (C1700-Y-M), Version 12.3(3a), RELEASE SOFTWARE (fc2)   VOoFR_ANK uptime is 1 week, 5 days, 22 hours, 8 minutes System returned to ROM by reload System image file is "flash:c1700-ipbase-mz.124-6.T2.bin"   Cisco 1721 (MPC860P) processor (revision 0x200) with 59503K/6033K bytes of memory.   Processor board ID FOC07421P6U (3650433446), with hardware revision 0000 MPC860P processor: part number 5, mask 2   1 DSL controller
  1 FastEthernet interface
  1 Serial(sync/async) interface
  1 ATM interface
  32K bytes of NVRAM.
  32768K bytes of processor board System flash (Read/Write)   Configuration register is 0x2102    

  teþekkürler þimdiden.

CCNA (2003)
ATI-CASE RS (2004)
Network Engineer
Artun KOCAMAN                  

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Received on Mon Sep 18 10:53:46 2006