[K12OSN] New amer.com switch troubles

John Baillie jbaillie at stmarys-school.org
Tue Dec 27 02:01:45 UTC 2005


How sure are you about the integrity of the cabling?

NONE NONE wrote:

>Hello,
>
>I just got the new amer.com switches and hooked them all up, and now things aren't working. I have checked all the connections, it's wired correctly, but none of the student pcs will boot to linux anymore.
>
>Here is the setup:
>
>Server goes into port 1 of sgd8 (8x1000meg ports)
>Port 2 of sgd8 goes into port 25 of sr24g2 (24*100meg, 2*1000meg)
>Various ports from 1-24 of sr24g2 go into the student pcs
>
>One problem I can see is that the connection from the server into the sgd8 is listed as 100meg on the switch itself, even though the server can put out 1000meg. I think maybe the card in the server is configured to put out something wrong. How can I check what it is putting out and how can I change it? I assume it should be putting out 1000meg full duplex. Here is what ethtool says:
>
>        Supported ports: [ TP ]
>        Supported link modes:   10baseT/Half 10baseT/Full
>                                100baseT/Half 100baseT/Full
>                                1000baseT/Full
>        Supports auto-negotiation: Yes
>        Advertised link modes:  10baseT/Half 10baseT/Full
>                                100baseT/Half 100baseT/Full
>                                1000baseT/Full
>        Advertised auto-negotiation: Yes
>        Speed: 100Mb/s
>        Duplex: Full
>        Port: Twisted Pair
>        PHYAD: 0
>        Transceiver: internal
>        Auto-negotiation: on
>        Supports Wake-on: umbg
>        Wake-on: g
>        Current message level: 0x00000007 (7)
>        Link detected: yes
>
>I tried running this:
>
>ethtool -s eth0 duplex full speed 1000
>
>But ethtool still says the same thing as pasted above, and the switch still says 100meg speed. Also, all of the lights on the switches are just flashing like crazy.
>
>Thank you for any help, it is much appreciated! And merry christmas!
>
>_______________________________________________
>K12OSN mailing list
>K12OSN at redhat.com
>https://www.redhat.com/mailman/listinfo/k12osn
>For more info see <http://www.k12os.org>
>
>  
>




More information about the K12OSN mailing list