Solved

bandwidth statement in tunnel interface

Posted on 2014-03-16
5
556 Views
Last Modified: 2014-03-31
My WAN link is 3 Mbps and I see 2 VPN IPSec tunnel interfaces configured on the router. What I don't understand is each tunnel has a bandwidth statement as 4500 Kbps. I am not sure how I should understand this bandwidth allocated for the tunnel. I only have 3Mbps and my 2 tunnel interfaces have bandwidth as 9000 Kbps. Thanks
0
Comment
Question by:leblanc
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
5 Comments
 
LVL 29

Expert Comment

by:masnrock
ID: 39932913
What type of equipment are you using, and was it ever on a higher bandwidth connection?
0
 
LVL 1

Accepted Solution

by:
netdsg earned 250 total points
ID: 39933052
The bandwidth statement is only evaluated when QoS is configured on the router.  Do you have QoS configured?  If not the attribute is not relevant.

Check for a service policy applied to the physical interface the tunnel uses or on the tunnel interface itself.
0
 
LVL 1

Author Comment

by:leblanc
ID: 39933175
WE are all Cisco gear and yes there is QoS configured on it. What I don't understand is how you can set the bandwidth higher than your actual physical link.
0
 
LVL 70

Assisted Solution

by:Qlemo
Qlemo earned 250 total points
ID: 39933664
The tunnel bandwidth is not bound to the restrictions of a physical interface, as it acts as virtual interface. And your physical interface bandwidth certainly is at least 10Mbit/s (more probably 100Mbit/s). So, even if bandwidth limits are checked against the maximum possible bandwidth for the interface, it's never checked if the aggregated bandwidth of all tunnel interfaces exceeds that.

Of course it would be much more useful to have a setting of "use up to 50%" instead of a hard limit without relation to what is really avaiable.
0
 
LVL 1

Expert Comment

by:netdsg
ID: 39933888
Can you post the tunnel interface config as well as the config for the physical interface that it traverses?  This will give us some insight into what the bandwidth command is doing.
0

Featured Post

On Demand Webinar: Networking for the Cloud Era

Did you know SD-WANs can improve network connectivity? Check out this webinar to learn how an SD-WAN simplified, one-click tool can help you migrate and manage data in the cloud.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

AWS has developed and created its highly available global infrastructure allowing users to deploy and manage their estates all across the world through the use of the following geographical components   RegionsAvailability ZonesEdge Locations  Wh…
Getting hacked is no longer a matter or "if you get hacked" — the 2016 cyber threat landscape is now titled "when you get hacked." When it happens — will you be proactive, or reactive?
Here's a very brief overview of the methods PRTG Network Monitor (https://www.paessler.com/prtg) offers for monitoring bandwidth, to help you decide which methods you´d like to investigate in more detail.  The methods are covered in more detail in o…
Monitoring a network: how to monitor network services and why? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the philosophy behind service monitoring and why a handshake validation is critical in network monitoring. Software utilized …
Suggested Courses

635 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question