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QoS on Cisco 4948 switch

SUNIL Perumana
Level 1
Level 1

Dear All,

Can somebody tell me how to configure QoS on Cisco 4948. I have three VLans in my network. First is video traffic second is the voice traffic and third is the data traffic . I need to set the priority in QoS in the following way

i.e. Video traffic -  1st pref

     Voice traffic -  2nd pref

     Data traffic   -  3rd pref

Please let me know how to configure for this requirement.

Regards,

Sunil P

3 Replies 3

SUNIL Perumana
Level 1
Level 1

Dear All,

I would like to know how to do bandwidth management for the three types of traffic

1) Video 1st priority

2) Voice 2nd priority

3) Data 3rd priority

Regards,

Sunil P

Hi,

I have mentioned below some useful links for configuring Qos.

http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/54sg/configuration/guide/qos.pdf

http://www.cisco.com/en/US/docs/ios/12_2/qos/configuration/guide/qcfintro.html

Hope this helps

Cheers

Somu

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Hi,

I have mentioned below the configurations for your requirement.

!

ip cef

!

class-map match-all voice

match ip dscp ef

class-map match-all Interactive video

match ip dscp af41 af42

class-map match-any call signaling

match ip dscp cs3

match ip dscp af31

class-map match-all Routing

match ip dscp cs6

Class-map match-all Net Mgmt

match ip dscp cs2

class-map match-all Mission-critical

match ip dscp 25

class-map match transactional Data

match ip dscp af21 af 22

class-map match-all bulk data

match ip dscp af11 af12

class-map match-all streaming video

match ip dscp cs4

class-map match-all Scavenger

match ip dscp cs1

!

policymap SUNIL_TEST

class voice

priority percent 18

class interactive Video

priority percent 15

class call signaling

bandwidth percent 5

class routing

bandwidth percent 3

class Net Mgmt

bandwidth percent 2

class Mission-Critical data

bandwidth percent 10

random-detect

class Transactional Data

bandwidth percent 7

random-detect dscp-based

class Bulk Data

bandwidth percent 4

random-detect dscp based

class streaming video

bandwidth percent 10

class scavenger

bandwidth percent 1

class class-default

bandwidth percent 25

random-detect

!

Apply the policy map under the specific interface. kindly note that one policy per direction.

Hope this helps

Cheers

Somu

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