IPSec VPN throughput

cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 

IPSec VPN throughput

L3 Networker

Hi all,

I have a IPSec VPN between a PA200 and a PA220.

Now i'm transporting a file from the pa200 network via ftp through the side-to-side tunnel to the pa220 network. The connection between the PAs is a 300mbits synchronous connection.

 

The dataplane cpu goes up to over 90% with PA200 and the bandwidth reaches only low 10mbyte/s. The interesting thing is, if I transfer 10 files at the same time, the speed goes up to about 20-25mbyte. Dataplane CPU is around 90-95% again.

 

What could be the reason for this? How do I get more speed?

1 accepted solution

Accepted Solutions

L3 Networker

That was a stupid question. The solution can be found in the technical data sheet. the PA200 can only 50mbits as ipsec tunnel. That explains my problem.

View solution in original post

3 REPLIES 3

L3 Networker

That was a stupid question. The solution can be found in the technical data sheet. the PA200 can only 50mbits as ipsec tunnel. That explains my problem.

Community Team Member

Hi @clonesheep ,

 

It wasn't stupid ... real users don't read manuals ! XD

 

 

manual-manual-we-dont-need-no-stinking-manual.jpg

 

Cheers !

-Kiwi.

 
LIVEcommunity team member, CISSP
Cheers,
Kiwi
Please help out other users and “Accept as Solution” if a post helps solve your problem !

Read more about how and why to accept solutions.

10Mbit/s is a far cry from 50. What's more likely to be your problem is that performance is getting degraded due to fragmentation. Try dropping the MTU on your tunnel interfaces to about 1400 and make sure MSS is getting clamped. Also check your algorithms. You should be using AES instead of 3DES, try GCM instead of CBC, etc.

  • 1 accepted solution
  • 8429 Views
  • 3 replies
  • 0 Likes
Like what you see?

Show your appreciation!

Click Like if a post is helpful to you or if you just want to show your support.

Click Accept as Solution to acknowledge that the answer to your question has been provided.

The button appears next to the replies on topics you’ve started. The member who gave the solution and all future visitors to this topic will appreciate it!

These simple actions take just seconds of your time, but go a long way in showing appreciation for community members and the LIVEcommunity as a whole!

The LIVEcommunity thanks you for your participation!