vmb01
Enthusiast
Enthusiast

mtu less than 1600

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The Geneve overlay requires an MTU value of 1600 bytes or greater. !

My questions are:

in a lab or POC environment with an MTU value of 1500 does the overlay works?

If yes, is it supported?

In few words I'm asking if MTU>=1600 is a must or a very best practice.

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Sreec
VMware Employee
VMware Employee

It is must , since we don't support fragmentation. The MTU size must be large enough to support extra encapsulation overhead.

Cheers,
Sree | CKA|CKAD|VCIX-3X| VCAP-4X| VExpert 5x
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Sreec
VMware Employee
VMware Employee

It is must , since we don't support fragmentation. The MTU size must be large enough to support extra encapsulation overhead.

Cheers,
Sree | CKA|CKAD|VCIX-3X| VCAP-4X| VExpert 5x
Please KUDO helpful posts and mark the thread as solved if answered

View solution in original post

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