Re: Network Slowdowns?

[Brian <bri@xxxxxxxxxxxxx>]

Jamie wrote:
> In <54438.66.195.169.42.1160751050.squirrel@xxxxxxxxxxxxxxxxxxxxxx>,
> "Justin C. Sherrill" <justin@xxxxxxxxxxxxxxxxxx> mentions:
>   
> > On Fri, October 13, 2006 5:32 am, Jamie wrote:
> >
> >     
> > > Someone suggested changing the duplex settings on the other side, I know
> > > it's running full duplex on DragonFlyBSD, but.. I don't know how to even
> > > find out linux side. I'll have to research that I guess.
> > >       
> > ethtool eth0 (or eth1, or whatever it is)
> >
> > or
> >
> > mii-tool (no args)
> >
> > ethtool will plop out a lot of data, while mii-tool is pretty terse, but
> > both will specify speed and duplex.
> >     
>
> Much thanks!
>
> Well.. I don't know if I should be too thankful.. was hoping they'd be 
> set differently.
>
> Apparently, they're both set to full duplex:
>
> DragonflyBSD:
>
> ifconfig xl0
> xl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
>         inet 192.168.1.17 netmask 0xffffff00 broadcast 192.168.1.255
>         inet6 fe80::204:76ff:fe38:7274%xl0 prefixlen 64 scopeid 0x1 
>         ether 00:04:76:38:72:74
>         media: Ethernet 100baseTX <full-duplex>
>         status: active
>
> It doesn't say the speed, but can I assume 100baseTX means it's 100Mb/s ?
>
>
> Linux:
> root@pong# ethtool eth0
> Settings for eth0:
>         Supported ports: [ TP MII ]
>         Supported link modes:   10baseT/Half 10baseT/Full
>                                 100baseT/Half 100baseT/Full
>         Supports auto-negotiation: Yes
>         Advertised link modes:  10baseT/Half 10baseT/Full
>                                 100baseT/Half 100baseT/Full
>         Advertised auto-negotiation: Yes
>         Speed: 100Mb/s
>         Duplex: Full
>         Port: MII
>         PHYAD: 24
>         Transceiver: internal
>         Auto-negotiation: on
>         Current message level: 0x00000001 (1)
>         Link detected: yes
>
>
>
> Duplex: Full .. I assume that is full duplex, so that can't be it.
>
> I'll try to get boot -v if I can, not quite sure how to go about doing that. 
>
> I guess I've had fairly good luck with networking because on the whole, it
> usually has just "worked" for me.
>
>
> Jamie
>   
I just joined the list yesterday, so I don't know if this was already 
covered.

Have you tried netstat commands to help?

netstat -rn to view routing table.
netstat -I intname 1 to view per second ether stats.

Brian