Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements
Webcast-Catalyst9k
New Member

QoS Shape average

Guys,

 

What is a good shape average in kb for a T1 circuit?

 

Thanks
 

1 ACCEPTED SOLUTION

Accepted Solutions
Super Bronze

DisclaimerThe Author of this

Disclaimer

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.

Liability Disclaimer

In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.

Posting

As real T1 circuits interfaces are clocked to the T1 transmission rate, there shouldn't be a need to shape.

What are you trying to do, emulate a T1 circuit's performance on something like Ethernet?

5 REPLIES
Super Bronze

DisclaimerThe Author of this

Disclaimer

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.

Liability Disclaimer

In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.

Posting

As real T1 circuits interfaces are clocked to the T1 transmission rate, there shouldn't be a need to shape.

What are you trying to do, emulate a T1 circuit's performance on something like Ethernet?

New Member

I am trying to shape traffic

I am trying to shape traffic going to the provider via MPLS.  Do I need to shape MPLS traffic?

Super Bronze

DisclaimerThe Author of this

Disclaimer

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.

Liability Disclaimer

In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.

Posting

Maybe, maybe not.

It depends on multiple factors.  If your port speed is faster than some CIR and the provider drops or charges extra for overrate traffic, then you'll likely want to shape.  Sometimes, if the other side's bandwidth is less than the near side's, you'll want to shape to better manage any congestion.

MPLS vendors often can provide some QoS support.  Depending on what they offer, and your needs, you may not need to shape, but perhaps mark your traffic to take advantage of their QoS support.

New Member

Thanks Joseph.  I will look

Thanks Joseph.  I will look into that.  It makes sense to shape ethernet but not a T1.  For example if bandwidth is only allocated 50 mb put you can push out 100mb (Fast ethernet interface) then shaping would be necessary. 
 

Super Bronze

Exactly!

Exactly!

87
Views
0
Helpful
5
Replies
CreatePlease to create content