I'm updating the system to 6.3-release now.
All 13 machines are on the same subnet but they are scattered across
different switchs.
netstat -m:
7716/399/8115 mbufs in use (current/cache/total)
7388/326/7714/25600 mbuf clusters in use (current/cache/total/max)
7380/41 mbuf+clusters out of packet secondary zone in use (current/cache)
0/0/0/0 4k (page size) jumbo clusters in use (current/cache/total/max)
0/0/0/0 9k jumbo clusters in use (current/cache/total/max)
0/0/0/0 16k jumbo clusters in use (current/cache/total/max)
16705K/751K/17456K bytes allocated to network (current/cache/total)
0/0/0 requests for mbufs denied (mbufs/clusters/mbuf+clusters)
0/0/0 requests for jumbo clusters denied (4k/9k/16k)
0/6/6656 sfbufs in use (current/peak/max)
0 requests for sfbufs denied
0 requests for sfbufs delayed
0 requests for I/O initiated by sendfile
193374 calls to protocol drain routines
ifconfig -a:
em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
options=b<RXCSUM,TXCSUM,VLAN_MTU>
inet 192.168.X.X netmask 0xffffff00 broadcast 192.168.X.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=b<RXCSUM,TXCSUM,VLAN_MTU>
inet X.X.X.X netmask 0xffffff00 broadcast X.X.X.255
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
Derek Ragona wrote:
At 01:50 PM 2/12/2008, Victor Farah wrote:
Hello,
I have a machine setup with FreeBSD 6.3-PRERELEASE setup on a
10/100/1000 switch. There are a pair of em interfaces, and the
network traffic on this machine is very spuratic. Both EM interfaces
reach 100Mbps and falls to 5~10Mbps, the very next minute, the traffic
is very spuratic. The media of the interfaces is as follows:
EM0: media: Ethernet autoselect (1000baseTX <full-duplex>)
EM1: media: Ethernet 1000baseTX <full-duplex>
Currently the EM1 card is in use.
I watch an MRTG that I have setup to see the machine failing at
sustaining its bandwidth.
I have 13 other machines setup the same way but traffic is running
fine and working very well, the only difference between those and the
new one, is that it's pushing much more data through it; almost the
same amount of data the 13 other machines push combined.
First you should update this system to 6.3 release.
Also you should post how your interfaces are configured, you can copy
and paste the output from:
ifconfig -a
You also need to better explain the topology of your network. For
instance are all 13 systems on the same subnet? or are you running
multiple subnets with a switched backbone? How many switches are you
using? Are you checking the throughput across a LAN segment or across
multiple subnet segments?
-Derek
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