3 ms·
Jumbo/9000 byte frames have been a thing for a long time now and a lot of switches enable it by default so you can definitely reap the benefits of 100G/400G. T
by Bluecobra 3y ago
Jumbo/9000 byte frames have been a thing for a long time now and a lot of switches enable it by default so you can definitely reap the benefits of 100G/400G. The problem is that every L3 hop also needs to support a higher MTU if you want to route this traffic without fragmentation.
- nicholasbraker 3y agoAnd as such is mostly used within datacenter fabrics.
- allarm 3y agoAnd that’s reasonable, because loss of a large datagram has larger impact. Thus jumbos in data centers, but not in the wild Internet where losses are more common.
- toast0 3y agoThis would be good enough, and allow for progressive enhancement, except that path MTU detection is somewhere between fragile and broken on the internet. So maybe you run 9000 packets on internal interfaces, and 1500 externally, or more often, that's too hard and 1500 is it. There are 9000 internet exchanges, so maybe there is hope, but I haven't seen any progress reports.