Solaris 11 Express: Problem #6

Feb 01, 2011 | 2 minutes read
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Tags: Bug, Network

In this series, I will report the bugs or problems I find when running the Oracle Solaris 11 Express distribution. I hope this will give more visibility on those PR to Oracle to correct them before the release of Solaris 11 next year.

Well, this one is not a really a bug per-se, but it is really annoying nonetheless. The new interface where most network things are managed through dladm and ipadm is really interesting because this leads to a single point of management for the stack IP. Most things works pretty well, unless setting the mode and speed of an interface, were we always need to use the old ndd command, or the system kernel configuration file, or set parameters in the specific interface configuration file, as in old days on old Solaris releases.

Here is an example of such annoying behavior when hard setting a mode and speed for an interface is required:

# dladm show-link
eri0        phys      1500   up       --         --

# dladm show-phys
LINK         MEDIA                STATE      SPEED  DUPLEX    DEVICE
eri0         Ethernet             up         100    half      eri0

# dladm show-linkprop -p duplex eri0
LINK         PROPERTY        PERM VALUE          DEFAULT        POSSIBLE
eri0         duplex          r-   full           full           half,full

As you can see, the auto-negotiation leads to an unusual 100Mbps half-duplex mode. And because the associated link property is read-only, the only way to put the link at 100Mbps full-duplex is to set it another way as before Solaris 11:

# ndd -set /dev/eri0 adv_100fdx_cap 1
# ndd -set /dev/eri0 adv_autoneg_cap 0

# cat << EOF >> /etc/system
set eri:adv_autoneg_cap=0
set eri:adv_100fdx_cap=1
set eri:adv_100hdx_cap=0
set eri:adv_10fdx_cap=0
set eri:adv_10hdx_cap=0

As I said previously it is not a bug, but is is really a pity it not possible to use the new way to set these parameters.