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Recommendation of percentage % allocated QoS

Posted on 2009-05-06
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Last Modified: 2012-05-06
Hi, I requested to our Network guys to setup QoS over our MPLS network, they have done this with the IP addresses I supplied between each office. They've now come back and requested the percentage of QoS required? Ive requested 30%.

I'm assuming when our Line is over utilised that 30% of the line will be reserved for the IP addresses I supplied. I also assumed my network guys would recommend the QoS percentage to me?

The traffic and volume is not high at the moment and our Lines are rarely over utilised, (avg 60 - 80%) the productoin/primary traffic between the IP's is Citrix, http and SFTP.

The lines into the MPLS cloud are 10MB, 8MB all the way down to 1.5MB. Is there a formula out there that could help me come up with a recommended QoS percentage per site?

Thanks
Wayne
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Question by:Blondzer
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Expert Comment

by:nrpanchal
ID: 24313396
Mr Wayne  (I am a huge Dark Knight fan)

As per my understanding you should first classify your Network Traffic into following categories:
1.  Real Time  -- 33 %
2. Critical Data -- Remaining
3. Best Effort Data -- 25%
4. Scavanger -- 5%

You should use LLQ if you are using Voice/Video and allocate Bandwidth in % as given above.

HTH
nayan panchal
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nrpanchal earned 250 total points
ID: 24313409
Mr Wayne,

You can refer to following link for more details :

http://www.ciscopress.com/articles/article.asp?p=357102&seqNum=7

HTH
nayan panchal
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Author Comment

by:Blondzer
ID: 24315953
Thanks Nayan, I'll have a read now and see what I can get from it.

Wayne
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