Limit Data Bandwidth on VoIP
We are an US based international call centre.We are using cisco AS5300 as our VoIP gateway. I would like to know if i can use the same AS5300 for internet as well. If yes how can i limit the bandwidth out of the total bandwidth i have for data i.e. internet.Please let me know at the earliest.
Hello,
as an additional info to the previous post: I would recommend to use LLQ for voip traffic.
Not only a certain amount of bandwidth but also low delay are important for voip traffic.
So outbound you could use a policy like this:
ip cef
class-map match-any VoIP
match ip dscp ef cs5
match protocol rtp audio
class-map match-any VoIPsignal
match ip dscp cs3
policy-map VoIPprio
class VoIP
priority percent 10
class VoIPsignal
bandwidth remaining percent 5
class class-default
fair-queue
random-detect
interface Serial0
ip address ...
service-policy output VoIPprio
You would have to adjust the bandwith ratios for your needs and the interface naming to your environment.
The policy will give 10% of the link to voip traffic with lowest possible delay, 5% of the rest for voip signaling, and the rest for the other data present.
Again as already mentioned your ISP controls the interface towards you and you might need his helps to solve potential voip qos issues arising from dropped packets on his side.
Hope this helps! PLease rate all posts.
Regards, Martin
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The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.
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The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.
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The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.
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