Hello,
i've setup a OpenBSD 5.2 (amd64) system using flashrd on a DELL R610 server,
with an Intel PRO/1000 PF (82571EB) dualport fibre optics adapter.
The system also have four broadcom BCM5709 copper interfaces.
I try to monitor the linkstate of these interface using the default
snmpd. The linkstate for the bnx interfaces are always correct ("up"), only
the em interfaces report "unknown" when the link is in state "up"
# ifconfig em0
em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
lladdr xx:xx:xx:xx:xx:xx
description: Uplink
priority: 0
media: Ethernet 1000baseSX full-duplex
status: active
inet xxx:xxx:xxx:xxx netmask 0xfffffff8 broadcast xxx:xxx:xxx:xxx
inet6 XXXX::XXXX:XXXX:XXXX:XXXX%em0 pre
# snmpwalk -v 1 -c public localhost IF | grep -i -E '(ifoper|ifdescr)'
IF-MIB::ifDescr.1 = STRING: em0
IF-MIB::ifDescr.2 = STRING: em1
IF-MIB::ifDescr.3 = STRING: enc0
IF-MIB::ifDescr.4 = STRING: lo0
IF-MIB::ifDescr.5 = STRING: bnx0
IF-MIB::ifDescr.6 = STRING: bnx1
IF-MIB::ifDescr.7 = STRING: bnx2
IF-MIB::ifDescr.8 = STRING: bnx3
IF-MIB::ifOperStatus.1 = INTEGER: unknown(4)
IF-MIB::ifOperStatus.2 = INTEGER: down(2)
IF-MIB::ifOperStatus.3 = INTEGER: down(2)
IF-MIB::ifOperStatus.4 = INTEGER: unknown(4)
IF-MIB::ifOperStatus.5 = INTEGER: down(2)
IF-MIB::ifOperStatus.6 = INTEGER: down(2)
IF-MIB::ifOperStatus.7 = INTEGER: up(1)
IF-MIB::ifOperStatus.8 = INTEGER: up(1)
If i shutdown the interface "ifconfig em0 down", it's state is correctly
reported as "down".
I can reproduce this on a vmware virtual machine running a plain OpenBSD 5.2 (
no flashrd setup).
The used intel based adapter is reported as "Intel PRO/1000MT (82545EM)" and
behaves the same
like on my physical server. I also disabled the "connected" state from vmware
side and the
interface reports it's state correctly as "lowerLayerDown(7)" within snmp.
I also tested with 5.1 release on vmware, with the same results.
It looks like a kernel/driver problem for me.
Any help would be appreciated.
Regards,
--
Carsten Schöne
