[OT] Oddities in network information
Hey,
I have a number of Debian boxes connected into a Foundry FastIron II
switch. This switch has a bunch of 100BaseT ports and 8 1000BaseT
ports. I have several servers with GigE NICs plugged into the gig
ports on the switch, but when I look at mii-tool, it shows:
# mii-tool
eth0: negotiated flow-control, link ok
However, hosts plugged into the 100BaseT ports show
# mii-tool
eth0: negotiated 100baseTx-FD flow-control, link ok
The reason for my concern is that I just changed my backuppc box. The
old box had 100BaseT interfaces, a P4 processor, and 2G of RAM. The
new box has Gig interfaces, a dual-core Xeon, and 8G of RAM. I have
been checking backup speeds, and they are not significantly different.
On a representative host (I have been spot-checking), a full backup
took about 10 minutes. On the new hardware, backups are taking about 8
minutes. I'm not a network engineer, but using a transport that is a
full order of magnitude faster *should* give more than a 20% decrease
in backup times...Am I wrong here? I guess the Gig-E mii-tool saying
"negotiated" rather than saying 1000BaseT or something just adds to my
concerns.
--b
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