How to disable ce Ethernet autonegotiation for boot net

This entry was posted in Middleware and tagged , , on June 17, 2012, by

Turning autonegotiation off and setting speed/mode manually is called “forced mode”. For the Sun[TM] GigaSwift on-board interfaces and Network Interface Cards (ce), and for bge on-board interfaces, boot in “forced mode” is possible.; M! c  u9 {5 l5 @

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In jumpstart “boot net”, 3 steps are involved. The driver must be forced in all 3 steps of the jumpstart boot process.4 C5 F& z” u; C& x


1) Force the interface on the client’s boot PROM:% t% f4 C( e  i* f


ok boot /pci@1f,2000/pci@1/network@0:speed=100,duplex=full,2 |7 E! [! {0 i/ T! Q

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ok devalias net /pci@1f,2000/pci@1/network@0:speed=100,duplex=full,. m’ m2 h; U& v

ok boot net


(To make this change persistent against OBP reset, use nvalias instead of devalias.)


2) inetboot is loaded from the boot server:

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An inetboot file which honours the “forced” ce setting is needed on the boot server.

This is included in Solaris 8 Patch 111306-05; for Solaris 9, it is Patch 113578-01.; K: E: M” P’ h, W: i. c% S7 }

These patches must be applied on the boot server.

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3) Client uses the OS from the filesystem of the boot server:

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On the boot server, create a


(the same directory in which the ce 32 bit driver is located, one single line, example for 100 FDX):; [8 G) f9 s( [  r, ]

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adv_autoneg_cap=0 adv_1000fdx_cap=0 adv_1000hdx_cap=0 adv_100fdx_cap=1 / ]2 V. @: @; r3 H# l6 X: y

adv_100hdx_cap=0 adv_10fdx_cap=0 adv_10hdx_cap=0;


Note: With some switches, adv_autoneg_cap=0 results in Link Down.

Use adv_autoneg_cap=1 in this case (Autonegotiation enabled, Fixed Speed/Duplex)


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