Hacker News Reader

Nothing prevents you from using a smaller MTU... well "TU" for TCP frames.

Less packets to process would speed things up. Fever headers to process.

Also if your TCP flow bandwidth is counted in tens or hundreds of gigabits per second, there's still going to be plenty of ACKs.

View on HN

MSS (maximum segment size) is the term at the TCP layer. Each end of a connection can (and usually does) declare its MSS in a TCP option in the first packet it sends.

Advertised MSS, interface MTU, and route MTU can all constrain packet sizing.

Using large-MTU routes for internal destinations can work well.

Right, vaguely aware of that, but been a while. Thanks for correcting!

Reply on news.ycombinator.com