[c-nsp] Improve VPN performance by reducing MTU via DHCP?

[Vincent De Keyzer]

Hello list,

 

our company is about to build a corporate European network over VPNs, and a
colleague of mine read somewhere that VPN performance can be improved by
changing the MTU of workstations (this seems to be an option of DHCP
server). In this way, the encapsulated packets are not bigger than 1500
bytes, and no fragmentation is required, hence improving performance.

 

Does that sound good to you? Anybody ever tried this? Can you think of any
side effect of changing the MTU of all PCs?

 

Vincent