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My configuration is as follows:

	vlan13 is my local wire.  This hosts the machine I am running cvs
update on.

	vlan9 is my external interface.  This includes the outgoing cable
modem.  I have two addresses, one static (used only to talk to the
cable modem itself) and one dynamic (the one the cable system gives me.)

When I run a "cvs update" on a host on vlan13, and a ping from my router
box, I get this sort of situation:

64 bytes from 192.168.100.1: icmp_seq=18 ttl=64 time=4.656 ms
64 bytes from 192.168.100.1: icmp_seq=19 ttl=64 time=0.810 ms
64 bytes from 192.168.100.1: icmp_seq=20 ttl=64 time=0.578 ms
64 bytes from 192.168.100.1: icmp_seq=21 ttl=64 time=4.367 ms
64 bytes from 192.168.100.1: icmp_seq=22 ttl=64 time=448.628 ms
64 bytes from 192.168.100.1: icmp_seq=23 ttl=64 time=3.969 ms
64 bytes from 192.168.100.1: icmp_seq=24 ttl=64 time=698.421 ms
64 bytes from 192.168.100.1: icmp_seq=25 ttl=64 time=473.774 ms
64 bytes from 192.168.100.1: icmp_seq=26 ttl=64 time=327.393 ms
64 bytes from 192.168.100.1: icmp_seq=27 ttl=64 time=1289.104 ms
64 bytes from 192.168.100.1: icmp_seq=28 ttl=64 time=574.265 ms
64 bytes from 192.168.100.1: icmp_seq=29 ttl=64 time=100.087 ms
64 bytes from 192.168.100.1: icmp_seq=30 ttl=64 time=0.569 ms
64 bytes from 192.168.100.1: icmp_seq=31 ttl=64 time=658.741 ms
64 bytes from 192.168.100.1: icmp_seq=32 ttl=64 time=741.042 ms
64 bytes from 192.168.100.1: icmp_seq=33 ttl=64 time=351.279 ms
64 bytes from 192.168.100.1: icmp_seq=34 ttl=64 time=2.938 ms
ping: sendto: No buffer space available
64 bytes from 192.168.100.1: icmp_seq=35 ttl=64 time=1195.469 ms
64 bytes from 192.168.100.1: icmp_seq=37 ttl=64 time=348.838 ms
64 bytes from 192.168.100.1: icmp_seq=38 ttl=64 time=0.539 ms
64 bytes from 192.168.100.1: icmp_seq=39 ttl=64 time=671.998 ms
64 bytes from 192.168.100.1: icmp_seq=40 ttl=64 time=521.078 ms
64 bytes from 192.168.100.1: icmp_seq=41 ttl=64 time=650.012 ms
64 bytes from 192.168.100.1: icmp_seq=42 ttl=64 time=529.919 ms
64 bytes from 192.168.100.1: icmp_seq=43 ttl=64 time=0.545 ms
64 bytes from 192.168.100.1: icmp_seq=44 ttl=64 time=671.286 ms
64 bytes from 192.168.100.1: icmp_seq=45 ttl=64 time=514.058 ms

Note that 192.168.100.1 is local to me.

There is a VLAN capable switch between me and the modem, and me and the
vlan13 hosts.  Until recently, however, I have had what is more or less
no problem with this, and now I get no buffer space messages and HUGE
ping times.

I have tried this both with and without pf filtering and ALTQ queueing.
 I have to keep pf active, however, since it is needed for NAT.

Note that running CVS update on the ROUTER also does this sort of thing.
 It seems to happen only when CVS is sending files to the server.

Any ideas what I should look at to try to diagnose this?

Note however that I do NOT see this sort of lag on vlan13, when I ping
hosts...  It's all very strange.

- --Michael
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