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Port shows as NO-CARRIER, state down though the cable is plugged in, Please suggest
$ lspci | grep Omni
0c:00.0 Fabric controller: Intel Corporation Omni-Path HFI Silicon 100 Series [discrete] (rev 11)
1b:00.0 Fabric controller: Intel Corporation Omni-Path HFI Silicon 100 Series [discrete] (rev 11)
58:00.0 Fabric controller: Intel Corporation Omni-Path HFI Silicon 100 Series [discrete] (rev 11)
5e:00.0 Fabric controller: Intel Corporation Omni-Path HFI Silicon 100 Series [discrete] (rev 11)
$
5: ib0: mtu 2044 qdisc pfifo_fast state UP qlen 256
link/infiniband 80:00:00:02:fe:80:00:00:00:00:00:00:00:11:75:01:01:79:00:1c brd 00:ff:ff:ff:ff:12:40:1b:80:01:00:00:00:00:00:00:ff:ff:ff:ff
inet 10.14.0.3/8 brd 10.255.255.255 scope global ib0
valid_lft forever preferred_lft forever
inet6 fe80::211:7501:179:1c/64 scope link
valid_lft forever preferred_lft forever
6: ib1: mtu 2044 qdisc pfifo_fast state UP qlen 256
link/infiniband 80:00:00:02:fe:80:00:00:00:00:00:00:00:11:75:01:01:78:ce:d9 brd 00:ff:ff:ff:ff:12:40:1b:80:01:00:00:00:00:00:00:ff:ff:ff:ff
inet 10.14.1.3/8 brd 10.255.255.255 scope global ib1
valid_lft forever preferred_lft forever
inet6 fe80::211:7501:178:ced9/64 scope link
valid_lft forever preferred_lft forever
7: ib2: mtu 2044 qdisc pfifo_fast state UP qlen 256
link/infiniband 80:00:00:02:fe:80:00:00:00:00:00:00:00:11:75:01:01:78:ce:d7 brd 00:ff:ff:ff:ff:12:40:1b:80:01:00:00:00:00:00:00:ff:ff:ff:ff
inet 10.14.2.3/8 brd 10.255.255.255 scope global ib2
valid_lft forever preferred_lft forever
inet6 fe80::211:7501:178:ced7/64 scope link
valid_lft forever preferred_lft forever
8: ib3: mtu 2044 qdisc pfifo_fast state DOWN qlen 256
link/infiniband 80:00:00:02:fe:80:00:00:00:00:00:00:00:11:75:81:01:79:00:1c brd 00:ff:ff:ff:ff:12:40:1b:80:01:00:00:00:00:00:00:ff:ff:ff:ff
inet 10.14.3.3/8 brd 10.255.255.255 scope global ib3
valid_lft forever preferred_lft forever
$
after rebooting the node. it came up.
8: ib3: mtu 2044 qdisc pfifo_fast state UP qlen 256
link/infiniband 80:00:00:02:fe:80:00:00:00:00:00:00:00:11:75:81:01:79:00:1c brd 00:ff:ff:ff:ff:12:40:1b:80:01:00:00:00:00:00:00:ff:ff:ff:ff
inet 10.14.3.3/8 brd 10.255.255.255 scope global ib3
valid_lft forever preferred_lft forever
inet6 fe80::211:7581:179:1c/64 scope link
valid_lft forever preferred_lft forever
may I know what could be the reason for such behavior. is it possible to recover without reboot for such cases
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