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how to set Gigabit interfaces strictly to 1000FD on HP-UX v2

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Mohammad N AlHiary
Occasional Advisor

how to set Gigabit interfaces strictly to 1000FD on HP-UX v2

I have HP-UX v2 boxes patched to latest. with PCI/PCI-X 1000Base-T interfaces.
and I would like to set the speed of the interfaces strictly to 1000FD and disable autoneg.

when trying to do it using SAM.I recieve this error "speed value cannot be set to 1000,when autoneg is off"

I checked the /etc/rc.config.d/hp*conf files and for speed value 1000fd is not an option.

so Is it possible to do so.

6 REPLIES
Laurent Menase
Honored Contributor

Re: how to set Gigabit interfaces strictly to 1000FD on HP-UX v2

it is indeed impossible.
Basheer_2
Trusted Contributor

Re: how to set Gigabit interfaces strictly to 1000FD on HP-UX v2

this will show the speed currently set to ( 0 is for lan0 and 1 is for lan1 etc.)
lanadmin -s 0
lanadmin -s 1

-x will give you both the speed and autoneg.

#lanadmin -x 0
Speed = 1000 Full-Duplex.
Autonegotiation = On.

to set the speed use S ( uppercase S, this will NOT work in 11.11)
lanadmin -S 0 1000000000
or
lanadmin -speed 0 (you can set in MBITS/sec only in 11.23)

lanadmin -X 0 ( this will NOT work in 11.11)

Thanks
Basheer
Ganesan R
Honored Contributor

Re: how to set Gigabit interfaces strictly to 1000FD on HP-UX v2

Hi,

HP recommands to set autoneg=ON on both switch and card side for gigabit cards. Otherwise card may not get the desired link and speed
Best wishes,

Ganesh.
Bill Hassell
Honored Contributor
Solution

Re: how to set Gigabit interfaces strictly to 1000FD on HP-UX v2

> recieve this error "speed value cannot be set to 1000,when autoneg is off"

This is not just a recommendation, it is mandatory for *all* Gigabit connections per the industry specification. The LAN cards will always autonegotiate to 1000FD as long as the switch and cables will support that speed. If the cards do not select 1000FD, then the other end does not support 1000FD or is misconfigured.


Bill Hassell, sysadmin
Mohammad N AlHiary
Occasional Advisor

Re: how to set Gigabit interfaces strictly to 1000FD on HP-UX v2

Thank you All for your support.
So The summary that it is impossible.
rick jones
Honored Contributor

Re: how to set Gigabit interfaces strictly to 1000FD on HP-UX v2

Impossible or not, it is unnecessary.
there is no rest for the wicked yet the virtuous have no pillows