On 2019-05-15, Predrag Punosevac <punoseva...@gmail.com> wrote: > Hi, > > I am having an issue with a single 10 Gigabit interface on one of Intel > Xeon D-1541 network servers. Namely after the reboot the interface > appears to be down even with a static route > > phobos# ifconfig ix0 > ix0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 > lladdr ac:1f:6b:19:f7:72 > index 1 priority 0 llprio 3 > groups: egress > media: Ethernet autoselect > status: no carrier > inet 128.2.204.160 netmask 0xfffffc00 broadcast 128.2.207.255 > > The only thing I can see is > > ix0: CRITICAL: EXTERNAL PHY OVER TEMP!! PHY will downshift to lower pow > er state!
Looking at the driver it looks like this is a high temperature alarm coming from the transceiver (PHY) passed on by the nic. The driver attempts to powers down the PHY in this condition, presumably to try to avoid damage. Is the cooling in this system working correctly? Do you still see it if you power it off for a while and let it cool down? (10GBase-T is relatively power hungry.)
