Solved

bandwidth statement in tunnel interface

Posted on 2014-03-16
5
527 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
5 Comments
 
LVL 23

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 68

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

Control application downtime with dependency maps

Visualize the interdependencies between application components better with Applications Manager's automated application discovery and dependency mapping feature. Resolve performance issues faster by quickly isolating problematic components.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
Cisco Router DMZ 5 57
MiTM SSH session on a Cisco device talking TACACS+ 1 60
Can't access router via web browser 21 74
Wireless antenna advice/design 6 49
I recently attended Cisco Live! in Las Vegas, a conference that boasted over 28,000 techies in attendance, and a week of hands-on learning hosted by a solid partner with which Concerto goes to market.  Every year, Cisco displays cutting-edge technol…
PRTG Network Monitor lets you monitor your bandwidth usage, so you know who is using up your bandwidth, and what they're using it for.
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
This video gives you a great overview about bandwidth monitoring with SNMP and WMI with our network monitoring solution PRTG Network Monitor (https://www.paessler.com/prtg). If you're looking for how to monitor bandwidth using netflow or packet s…

911 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

Need Help in Real-Time?

Connect with top rated Experts

19 Experts available now in Live!

Get 1:1 Help Now