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qos on catalyst 3550

7 room a connected with a catalyst 3550.I need to send video files from one room to another room. My major traffic is video files. I want to implement QoS so that my video traffic can get maximum bandwidth/priority over others. How I will configure QoS for this purpose. kindly help me indetail I never implemented it earlier. Also tell me the which configuration commands will be used.

New Member
New Member

Re: qos on catalyst 3550

I have another question about qos and catalyst.

Is there anybody who has successfull example of limiting trafic at catalyst?

I have the following configs, and shaping is not working:

PC1 ( -- fe0/1 2950 fe0/2 -- PC2 (


class-map match-all TEST

match access-group 100


policy-map TEST

class TEST

police 1000000 32768 exceed-action drop


ip subnet-zero

no ip finger


interface FastEthernet0/1

service-policy input TEST

mls qos cos 7


interface FastEthernet0/2

duplex full

speed 100


ip http server

access-list 100 permit ip host any


Switch#sh policy-map TEST

Policy Map TEST

class TEST

police 1000000 32768 exceed-action drop

Switch#sh mls qos interface fastEthernet 0/1


Attached policy-map for Ingress: TEST

trust state: not trusted

COS override: dis

default COS: 7

Switch#sh ver

Cisco Internetwork Operating System Software

IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(6)EA2, RELEASE SOFTWARE (fc1)

Copyright (c) 1986-2001 by cisco Systems, Inc.

Compiled Tue 04-Dec-01 14:14 by antonino

Image text-base: 0x80010000, data-base: 0x8042A000

ROM: Bootstrap program is CALHOUN boot loader

Switch uptime is 8 hours, 26 minutes

System returned to ROM by power-on

System image file is "flash:c2950-i6q4l2-mz.121-6.EA2.bin"

cisco WS-C2950G-24-EI (RC32300) processor (revision A0) with 21299K bytes of memory.

Processor board ID FHK0551Z0SU

Last reset from system-reset

24 FastEthernet/IEEE 802.3 interface(s)

2 Gigabit Ethernet/IEEE 802.3 interface(s)

But when I try to test this with simple ftp sessions, the speed of ftp session

is about 31 KB/s, not 1 Mb/s.

Where I'm wrong?

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