At 09:50 AM 2/14/2008, Victor Farah wrote:
Alright, I have the machine up to 6.3-STABLE #1 now. I've changed subnets
on the one card that pushes the traffic. There is a run down of the
machine now. The machine is still having the weird network traffic
problem of capping at around 100mbps and then dropping to 10~20mbps the
next minute. Any suggestions?
em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
options=1b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING>
inet 192.168.X.X netmask 0xffffff00 broadcast 192.168.1.255
ether 00:1b:fc:ef:34:de
media: Ethernet autoselect (1000baseTX <full-duplex>)
status: active
em1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
options=1b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING>
inet X.X.X.X netmask 0xffffff80 broadcast X.X.X.127
ether 00:1b:fc:ef:34:df
media: Ethernet 1000baseTX <full-duplex>
status: active
plip0: flags=108810<POINTOPOINT,SIMPLEX,MULTICAST,NEEDSGIANT> mtu 1500
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x4
inet6 ::1 prefixlen 128
inet 127.0.0.1 netmask 0xff000000
If your switch this system is connected to is managed, you can check the
ports these connect to for collisions of other issues.
When ethernet throughput degrades it can be caused by many factors like the
stream sending the packets slowing down, or transmit errors causing
retransmission of packets. Often once there are errors, they grow
exponentially because of retransmission etc.
You should try to isolate the exact conditions you have when you see the
traffic flow degrade.
-Derek
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