Re: IP_FRAG_TIME Default Too Large

2021-03-29 Thread Matt Corallo
On 3/29/21 20:04, Matt Corallo wrote: This issue largely goes away when setting net.ipv4.ipfrag_time to 0/1. Quick correction - the issue is reduced when set to 1 (as you might expect, you don't see as much loss if you wipe the fragment buffer every second) but if you set it to zero hosts ran

IP_FRAG_TIME Default Too Large

2021-03-29 Thread Matt Corallo
IP_FRAG_TIME defaults to 30 full long seconds to wait for reassembly of fragments. In practice, with the default values, if I send enough fragments over a line that there is material loss, its not strange to see fragments be completely dropped for the remainder of a 30 second time period before r