Jump to content
Welcome to our new Citrix community!
  • 0

PVS MTU value




I'm looking in making some optimizations regarding our current PVS deployment. I was always a bit in doubt about changing or not the MTU value.


When I do the ping with the default value (1506) I notice that exist fragmentation. If I ping it with 1472 there's no fragmentation. 


Is changing this value something that is worth a while? It will be noticeable that something is improved by changing this ?


@Kelan RoweI know that you've addressed this topic in the past.


Best regards,

Link to comment

3 answers to this question

Recommended Posts

  • 0

If your network is using the standard MTU size then you should not change the default MTU in PVS - the only reason to change is if you have some component in the path that reduces the max available size. 


The way MTU is configured in PVS is a bit odd as well -- the value you specify is actually the "traditional" Ethernet MTU + 6 - hence 1506 really means 1500 MTU.


When using ping, the buffer size you specify is the amount of data to include -- you have to add the IP/UDP header sizes (28) to that to get the actual transmission unit size - so for a 1500 MTU, you would specify a ping buffer size of 1472.


Confusing isn't it!


Link to comment

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Create New...