Gentoo Archives: gentoo-user

From: Stroller <stroller@××××××××××××××××××.uk>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] How to determine if a NIC is playing gigabit?
Date: Mon, 18 Jan 2010 12:25:02
Message-Id: E375879A-C0E8-4510-B788-9DA7639E3EF0@stellar.eclipse.co.uk
In Reply to: Re: [gentoo-user] How to determine if a NIC is playing gigabit? by Ward Poelmans
1 On 18 Jan 2010, at 12:14, Ward Poelmans wrote:
2
3 > On Mon, Jan 18, 2010 at 12:50, Stroller <stroller@××××××××××××××××××.uk
4 > > wrote:
5 >> I'm not ruling out the cable, because it's pretty beat up (but the
6 >> switch
7 >> *is* lighting up as 1000), but how do I determine, please, that the
8 >> Linux
9 >> server at the other end is recognising the NIC and negotiating as
10 >> gigabit
11 >> speeds?
12 >
13 > If i recall correct, you just have to take a look at the kernel log's
14 > (dmesg): it says if it has a 100 mbps or 1 gbps link connection.
15
16 I'm not seeing that:
17
18 $ dmesg | grep 8169
19 r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
20 r8169 0000:02:09.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
21 r8169 0000:02:09.0: no PCI Express capability
22 eth1: RTL8169sb/8110sb at 0xf8634000, 00:21:27:c9:79:88, XID 10000000
23 IRQ 17
24 r8169: eth1: link up
25 r8169: eth1: link up
26 $
27
28 A grep for "100" does not show anything more useful.
29
30 I had thought [1] that `ifconfig` had a line that stated the hardware
31 link speed, but I can't see it now.
32
33 Stroller.
34
35
36
37 [1] My memory left over from days when I had fairly recently spent
38 £135 on an 8-port 100Mbps switch (not hub) and my flatmate still had a
39 NIC performing at 10Mbps.