Cilium MTU Model

[joestringer]

Upstream issue: https://github.com/cilium/cilium/issues/14339 Status: Dormant

Cilium 1.10 or earlier does not provide deterministic Ethernet MTU (Maximum Transmission Unit) size configuration in environments where multiple networks are exposed to the nodes where Cilium runs. This feature aims to configure MTU consistently and optimally based on the available networks.

While this CFP is not being actively pursued, it may be useful for community members to discover and consider it for future efforts to improve Cilium's MTU handling. Hence I'm proposing to integrate it into the CFPs tree for better visibility.

Previous discussion: https://docs.google.com/document/d/1GLYB5-DnQmz63AiqYHubRScE9xrzAiH4XAN38LWeLUI/edit