On 06/01/2017 03:59 AM, Carlos E. R. wrote:
On 2017-06-01 05:01, L A Walsh wrote:
James Knott wrote:
On 05/31/2017 06:29 PM, L A Walsh wrote:
Iface MTU
br0 9000 eth0 9000 eth2 1500 eth5 9000 Looks like someone's running jumbo frames. https://en.wikipedia.org/wiki/Jumbo_frame
Yep -- for about 15 years maybe? For some reason it seems to involve maybe ~1/6th the normal packet overhead.... ;-) Except if a retry is needed.
Well, that depends on how many retries are needed. If a low number then you're ahead with large frames. The history of this sort of thing is interesting. Ethernet went with smaller frames than token ring, due to packet loss caused by collisions. But token ring didn't have collisions, as only one device, the one holding the token, could transmit at a time. Token ring could have frames over 4K bytes, IIRC. Same thing with IP. Back in the dark ages, the trunks travelled over the mostly analog phone network, which had higher noise levels than digital. So, originally dial up used 576 bytes. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org