Yes, it is a 384k circuit point-point
Results of show int ser0/0/0 are below. What am I looking for here?
Serial0/0/0 is up, line protocol is up
Hardware is GT96K with integrated T1 CSU/DSU
Internet address is xxx.xxx.xxx.xxx/30
MTU 1500 bytes, BW 384 Kbit, DLY 20000 usec,
reliability 255/255, txload 3/255, rxload 3/255
Encapsulation HDLC, loopback not set
Keepalive set (10 sec)
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops:
780
Queueing strategy: Class-based queueing
Output queue: 0/1000/64/774 (size/max total/threshold/drops)
Conversations 0/9/128 (active/max active/max total)
Reserved Conversations 1/1 (allocated/max allocated)
Available Bandwidth 4 kilobits/sec
5 minute input rate 5000 bits/sec, 8 packets/sec
5 minute output rate 6000 bits/sec, 9 packets/sec
24582319 packets input, 1599238634 bytes, 0 no buffer
Received 268498 broadcasts, 0 runts, 0 giants, 0 throttles
36522 input errors, 36518 CRC, 6885 frame, 3165 overrun, 0 ignored,
16167 a
bort
23305347 packets output, 3375885992 bytes, 0 underruns
0 output errors, 0 collisions, 2618 interface resets
0 output buffer failures, 0 output buffers swapped out
11 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
Results of show policy-map int ser0/0/0:
Serial0/0/0
Service-policy output: 75_24
Class-map: ef (match-any)
12445220 packets, 2538824880 bytes
5 minute offered rate 0 bps, drop rate 0 bps
Match: ip dscp ef (46)
12445219 packets, 2538824676 bytes
5 minute rate 0 bps
Queueing
Strict Priority
Output Queue: Conversation 136
Bandwidth 75 (%)
Bandwidth 288 (kbps) Burst 7200 (Bytes)
(pkts matched/bytes matched) 33385/6810540
(total drops/bytes drops) 0/0
Class-map: af41 (match-any)
0 packets, 0 bytes
5 minute offered rate 0 bps, drop rate 0 bps
Match: ip dscp af41 (34)
0 packets, 0 bytes
5 minute rate 0 bps
Queueing
Output Queue: Conversation 137
Bandwidth 24 (%)
Bandwidth 92 (kbps) Max Threshold 64 (packets)
(pkts matched/bytes matched) 0/0
(depth/total drops/no-buffer drops) 0/0/0
Class-map: class-default (match-any)
10864539 packets, 837569600 bytes
5 minute offered rate 3000 bps, drop rate 0 bps
Match: any
Queueing
Flow Based Fair Queueing
Maximum Number of Hashed Queues 128
(total queued/total drops/no-buffer drops) 0/774/0
QoS Set
dscp default
Packets marked 10551112
Thanks again!
________________________________
From: Rohyans, Aaron [mailto:[email protected]]
Sent: Friday, March 06, 2009 9:54 AM
To: NT System Admin Issues
Subject: RE: QoS for VoIP on Cisco router
Looks good to me! J What is the speed of the link? Looks like a
384Kb/s FT1. Is this a Point to Point T1, or a DIA (Dedicated Internet
Access) T1? How saturated is the link during congestion (you can do a
"show int ser0/0/0" during congestion and look at the "rxload" and
"txload" to get an idea)? I'm assuming it's using HDLC based on the
lack of extra config on the serial interface. What does the output of
"show policy-map interface serial 0/0/0" give you during times of
congestion? Any drops? Is it matching traffic correctly?
Hope this helps,
Aaron T. Rohyans
Senior Network Engineer
CCIE #21945, CCSP, CCNA, CQS-Firewall, CQS-IDS, CQS-VPN, ISSP, CISP,
JNCIA-ER
DPSciences Corporation
7400 N. Shadeland Ave., Suite 245
Indianapolis, IN 46250
Office: (317) 348-0099
Fax: (317) 849-7134
[email protected] <mailto:[email protected]>
http://www.dpsciences.com/ <http://www.dpsciences.com/>
From: David Mazzaccaro [mailto:[email protected]]
Sent: Friday, March 06, 2009 9:17 AM
To: NT System Admin Issues
Subject: QoS for VoIP on Cisco router
Could someone check my router config?
I am no cisco expert (not even a CCNA)...but...
I am trying to configure quality of service for voice over IP.
I believe I have it set up correctly, but the users are still getting
choppy phone conversations when there is other network traffic on the
circuit.
Here's a snip of the config:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
boot-start-marker
boot-end-marker
!
logging buffered 4096 debugging
enable secret 5 xxxxxxxxxxxxxxxxxxxxxxxx
!
no aaa new-model
!
resource policy
!
memory-size iomem 25
mmi polling-interval 60
no mmi auto-configure
no mmi pvc
mmi snmp-timeout 180
ip subnet-zero
no ip source-route
ip cef
!
no ip dhcp use vrf connected
ip dhcp binding cleanup interval 10
ip dhcp excluded-address 192.168.6.1
!
ip domain name yourdomain.com
!
class-map match-any af41
match ip dscp af41
class-map match-any ef
match ip dscp ef
!
policy-map 75_24
class ef
priority percent 75
class af41
bandwidth percent 24
class class-default
fair-queue
set ip dscp default
!
interface FastEthernet0/0
description $ETH-LAN$$ETH-SW-LAUNCH$$INTF-INFO-FE 0$
ip address 192.168.6.1 255.255.255.0
duplex auto
speed auto
no keepalive
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/0/0
ip address xxx.xxx.xxx xxx.xxx.xxx.xxx
service-module t1 timeslots 1-6
max-reserved-bandwidth 100
service-policy output 75_24
!
ip classless
ip route 0.0.0.0 0.0.0.0 Serial0/0/0
!
no ip http server
ip http access-class 23
ip http authentication local
ip http timeout-policy idle 60 life 86400 requests 10000
!
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Any help/guidance is greatly appreciated.
Thanks,
Dave
~ Finally, powerful endpoint security that ISN'T a resource hog! ~
~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
