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Error messages from the kernel drivers – Sun Microsystems 3U User Manual

Page 137

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Appendix D

Troubleshooting and SunATM Error Messages

115

ifname: frame-size change (please rerun lanesetup)

The MTU size was changed by the LAN Emulation Services; rerun

lanesetup

to

notify IP of the change. There is a slight chance that TCP connections will remain
open during this change, and if that is the case, performance on those connections
is affected by the change. Either restart the affected applications or reboot the
system if this becomes a problem.

could not download the MAC address

This message indicates that an error occurred while

lanesetup

was attempting

to retrieve a MAC address for the indicated interface. Most likely the kernel is out
of memory or you have not run

atmplumb

for the specified interface.

Could not find driver for

Each LAN Emulation interface is associated with an ATM driver when LAN
Emulation is set up by

atmplumb

. This message indicates that this interface/

driver association has not been made, most likely because you have not run

atmplumb

for the specified interface.

Not enough MAC addresses on

The number of Emulated LANs that can be joined over a single physical interface
is limited by the number of MAC addresses on the ATM interface board. This
message indicates that you tried to join more Emulated LANs than allowed by the
number of MAC addresses on the specified interface. You can find the number of
MAC addresses on an interface by using the

count

option on the

atmgetmac(1M)

command; the number of Emulated LANs and lane instances

indicated in

/etc/opt/SUNWconn/atm/atmconfig

and

/etc/opt/

SUNWconn/atm/laneconfig

should not exceed this number. See “Supporting

Multiple Emulated LANs on a Single Interface” on page 58.

Error Messages From the Kernel Drivers

q93b: warning: link coming back up on , but ilmid is

not running

The link has gone down and come back up on an interface, but

ilmid

is not

running at this time. Register addresses with the switch again, because both the
interface and switch must clear out their address tables when the link goes down.
Start

ilmid

; if the interface does not seem to be running properly after doing this,

you may need to reboot the system. It is likely that the interface was in an
unusual or unknown state when the link came back up, and may need to be taken
down completely by rebooting.