5
votes
Accepted
How can a router know the MTU of the next router?
How does router B know that the MTU of router C is 1400 bytes?
The MTU is a property of a network segment/subnet (more specifically of a link), not of a device/node which can have many interfaces ...
- 81.5k
4
votes
How can a router know the MTU of the next router?
To add to Zac67's answer:
why router B pre-fragment packets to send before router C
Fragmentation is expensive in terms of system ressources on routers, and should be avoided.
Routers and Firewalls ...
- 8,674
Only top scored, non community-wiki answers of a minimum length are eligible