Configure 2 nics at different speeds.

Hi,

I have a sunfire v120 which I have setup to have one nic using 192.168.51.5 and the the other to be 192.168.151.5. The first nic is on a 100Mb switch and the other is connected to a 1Gb switch.

They are currently running at

InterfaceSpeedDuplex

--

eri0100 Mbit/shalf

eri1100 Mbit/sfull

I have forced the eri interfaces to connect at 100Mb Full duplex by setting the /etc/system file with the following;

set eri:eri_adv_autoneg_cap=0

set eri:eri_adv_100hdx_cap=0

set eri:eri_adv_100fdx_cap=1

Which has worked for the first nic.

How to I set the second nic to connect at 1Gb full duplex?

Thanks

chris

[694 byte] By [Chaskinsa] at [2007-11-26 22:31:28]
# 1

Chris,

You would need to install a Gigabit-capable Ethernet card

to the system's solitary PCI slot.

The ERI interface is only capable of 10/100 network speeds.

http://sunsolve.sun.com/handbook_pub/Systems/SunFireV120_shared/spec.html

There are a number of fully qualified 10/100/1000 cards for that platform.

http://sunsolve.sun.com/handbook_pub/Systems/SunFireV120/components.html#Ethern et

rukbata at 2007-7-10 11:37:04 > top of Java-index,General,Talk to the Sysop...
# 2
Hi, Thanks for the reply.I'll look at doing that.Also though I have two v240's which have bge nics, I believe to support 1Gb. Would I be able to setup the second nic at 1Gb, as per my original question?ThanksChris
Chaskinsa at 2007-7-10 11:37:04 > top of Java-index,General,Talk to the Sysop...
# 3

Yes, the bge interfaces are capable of gigabit speeds.

"bge" = Broadcom Gigabit Ethernet chipset.

I've never had a need to do that sort of a configuration,

but it's plausable because you're going to manipulate

specific interfaces by name ( interface"0" and interface"1" ).

Go for it, then return to the forum and let us all know how it works out.

rukbata at 2007-7-10 11:37:04 > top of Java-index,General,Talk to the Sysop...
# 4

Have you actually determined that autonegotiation does not work?

I have not had a Sun NIC fail to autonegotiate properly since 1999.

Any so-called network admin who tells you that forcing speed-duplex by default is best practice is misinformed. Of course, sometimes you have no choice but to submit to their whims.

wsandersa at 2007-7-10 11:37:04 > top of Java-index,General,Talk to the Sysop...
# 5
I agree with wsanders. Especially the 1000/fdx, which needs to have autoneg on. Never had isues with bge's autonegociating.
Codename47a at 2007-7-10 11:37:04 > top of Java-index,General,Talk to the Sysop...