Jarod Watkins wrote: > Hi Jon, > Great questions and something I should have included in my original post. The > Linux firewall is still in place (it is VYOS, and running on similar > hardware). It is connected to a Brocade ICX-6450 switch trunked with various > VLANs. In order to do a “hot swap” I wanted to initially configure OpenBSD > and then switch them out. So my Internet interface (em0) on OpenBSD is > connected to one VLAN (172.31.1.0/24 subnet) and what will become my transit > VLAN is on em1 (I’m moving all my inter vlan routing to the switch). All > connections are wired, copper, and gigabit. > > Whether I ping the switch virtual interface (10.255.255.2) or another wired > client in VLAN 10 from OpenBSD, I see varying ping times. I also see the same > results going in the other direction (pinging OpenBSD from the switch or > other wired clients). If I ping any other wired host on my VLAN 10 network > from the router or any other host, I do not see this issue. My pings are > routinely sub millisecond. That is why this through me off guard. I was not > expecting to see this kind of variability on my local network with this kind > of hardware. > > Here is an example ping from a wired Linux box on my networking pinging the > router: > > $ ping 172.31.1.1 > PING 172.31.1.1 (172.31.1.1) 56(84) bytes of data. > 64 bytes from 172.31.1.1: icmp_seq=1 ttl=64 time=0.219 ms > 64 bytes from 172.31.1.1: icmp_seq=2 ttl=64 time=0.213 ms > 64 bytes from 172.31.1.1: icmp_seq=3 ttl=64 time=0.168 ms > 64 bytes from 172.31.1.1: icmp_seq=4 ttl=64 time=0.228 ms > 64 bytes from 172.31.1.1: icmp_seq=5 ttl=64 time=0.216 ms > 64 bytes from 172.31.1.1: icmp_seq=6 ttl=64 time=0.292 ms > 64 bytes from 172.31.1.1: icmp_seq=7 ttl=64 time=0.217 ms > 64 bytes from 172.31.1.1: icmp_seq=8 ttl=64 time=0.227 ms > 64 bytes from 172.31.1.1: icmp_seq=9 ttl=64 time=0.222 ms > ^C > --- 172.31.1.1 ping statistics --- > 9 packets transmitted, 9 received, 0% packet loss, time 8179ms > rtt min/avg/max/mdev = 0.168/0.222/0.292/0.029 ms > > And the same ping from OpenBSD: > > bsd# ping 172.31.1.1 > PING 172.31.1.1 (172.31.1.1): 56 data bytes > 64 bytes from 172.31.1.1: icmp_seq=0 ttl=64 time=3.744 ms > 64 bytes from 172.31.1.1: icmp_seq=1 ttl=64 time=3.585 ms > 64 bytes from 172.31.1.1: icmp_seq=2 ttl=64 time=4.743 ms > 64 bytes from 172.31.1.1: icmp_seq=3 ttl=64 time=0.978 ms > 64 bytes from 172.31.1.1: icmp_seq=4 ttl=64 time=4.548 ms > > Thanks, > Jarod
Hi Jarod, I agree that this is off. I've pretty much universally seen sub-ms pings on ethernet, at least gigabit ethernet, for a very long time. I have been wanting to setup an OpenBSD router for a while. I hope to report back on my findings, but I'm not sure when I'll have the time to do this. -Henrich
