Setting interface link settings in Sun's OpenBoot

Posted by Ceri Davies Thu, 09 Mar 2006 13:39:00 GMT

I don’t know if there is some trick to this, but every organisation that I’ve worked at has had some problems with Sun and Cisco kit autonegotiating link capabilities.

Since hardwiring the capabilities at both ends fixes the issue, it’s not too much of a problem… until you want to boot from the network.

I spent a little time scraping around today and found the way. These examples are from one of our v440s, which was incorrectly insisting on using a 100Mb, half-duplex link:

ok nvalias net0-fd100 /pci@1c,600000/network@2:speed=100,duplex=full,
ok nvstore
ok devalias net0-fd100
net0-fd100               /pci@1c,600000/network@2:speed=100,duplex=full,
ok boot net0-fd100
Boot device: /pci@1c,600000/network@2:speed=100,duplex=full,  File and args: 
/pci@1c,600000/network@2: 100 Mbps full duplex link up

Update, March 19th 2006: Although it's not stated anywhere, if you boot using this method, then the installation will use the same link settings.

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Comments

  1. Ben Klang said about 1 month later:
    This procedure did not work for me on a Netra X1. I found this document which details how to similarly configure an X1: http://docs.sun.com/source/816-2128/config_2.html Hope this helps someone.

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