Hello,
i=B4ve got a big problem in understanding the documentation related to WRED/RED-configuration on the CCO...
The priorization of VoIP-traffic on the WAN-side is doing well with this configuration, but i=B4m trying to "tune" this basic configuration for better voice-quality. I need this feature for VoIP-Traffic-Priorization on the LAN-Interface, but don=B4t understand how to do it right, especially the options of the IOS-command "random-detect dscp-based" mentioned by cisco in the documents i read.
To specify my needs: I want to prioritize traffic with the TOS/DiffServ value of 3, as this is the relevant traffic of the voice-components. Also i have to mention that i cannot alter this setting, so i have to work with it. The idea is to set this, as an important traffic, to a very high priorization level on the LAN-interface, so in no condition a voice packet will be dropped.
Also i would thank you much if you could give me a short explanation/ configuration example of doing this based on my begun configuration as seen below (see e0/0).
Sorry for my perhaps "dumb" question, but i=B4m very new in configuring qos-networking, my main former experience was tokenring/DLSW/Bridging/SNA, and as a result of this, i hadn=B4t the need for qos since now...
Thanks a lot in advance,
Peter
PS: If you could write it in german, it would help me a lot further, since its my motherlanguage ;-)
CONFIGURATION OF THE ROUTER IN THE OFFICE
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xxxxxxx#sh ver Cisco Internetwork Operating System Software IOS (tm) C2600 Software (C2600-I-M), Version 12.2(19), RELEASE SOFTWARE (fc3) Copyright (c) 1986-2003 by cisco Systems, Inc. Compiled Tue 12-Aug-03 23:36 by kellmill Image text-base: 0x8000808C, data-base: 0x80A183F0
ROM: System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)
kaiserstrasse uptime is 1 year, 3 weeks, 6 days, 8 hours, 6 minutes System returned to ROM by reload System restarted at 05:58:31 METDST Sat May 8 2004 System image file is "flash:c2600-i-mz.122-19.bin"
cisco 2612 (MPC860) processor (revision 0x102) with 20480K/4096K bytes of memory . Processor board ID JAB03490404 (2201902424) M860 processor: part number 0, mask 49 Bridging software. X=2E25 software, Version 3.0.0.
1 Ethernet/IEEE 802.3 interface(s) 1 Token Ring/IEEE 802.5 interface(s) 1 Serial network interface(s) 32K bytes of non-volatile configuration memory. 8192K bytes of processor board System flash (Read/Write)Configuration register is 0x2102
xxxxxxx#
xxxxxxx#sh conf Using 2739 out of 29688 bytes ! ! Last configuration change at 22:46:47 METDST Fri Jun 3 2005 ! NVRAM config last updated at 22:46:48 METDST Fri Jun 3 2005 ! version 12.2 service timestamps debug datetime msec localtime service timestamps log datetime localtime service password-encryption ! hostname xxxxxxx ! logging buffered 4096 debugging enable secret xxxxxxx enable password xxxxxxx ! clock timezone MET 1 clock summer-time METDST recurring last Sun Mar 2:00 last Sun Oct 3:00 ip subnet-zero ! ! no ip domain-lookup ! ! ! class-map match-all VOICE-xxxxxxx match access-group name VOICE-xxxxxxx ! ! policy-map VOICE-xxxxxxx class VOICE-xxxxxxx priority 900 ! ! ! interface Loopback1 ip address 123.123.32.132 255.255.255.255 ! interface Ethernet0/0 description Lokales Ethernet ip address 123.123.38.129 255.255.255.128 secondary ip address 123.123.38.1 255.255.255.128 ip helper-address 123.123.23.250 full-duplex random-detect dscp-based ! interface Serial0/0 description 2048k Verbindung -> Router xxxxxxx bandwidth 2048 ip address 123.123.32.18 255.255.255.252 service-policy output VOICE-xxxxxxx ! interface TokenRing0/0 shutdown ! router ospf 70 log-adjacency-changes passive-interface TokenRing0/0 network 123.123.32.16 0.0.0.3 area 32 network 123.123.32.132 0.0.0.0 area 32 network 123.123.38.0 0.0.0.255 area 32 ! ip classless no ip http server ! ! ip access-list extended VOICE-xxxxxxx permit ip host 123.123.38.170 any permit ip host 123.123.38.171 any permit ip host 123.123.38.172 any permit ip host 123.123.38.173 any permit ip host 123.123.38.174 any permit ip host 123.123.38.175 any permit ip host 123.123.38.176 any permit ip host 123.123.38.177 any permit ip host 123.123.38.178 any permit ip host 123.123.38.180 any permit ip host 123.123.38.185 any permit ip host 123.123.38.195 any logging 123.123.70.36 snmp-server community xxxxxxxxxxx RO snmp-server location xxxxxxxxxxx snmp-server enable traps tty ! line con 0 line aux 0 transport input all line vty 0 4 exec-timeout 30 0 password xxxxxxxxxxxx login ! ntp clock-period 17180001 ntp server 123.123.12.250 end