pc207 data link is unreachable

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Cheng Cui

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Nov 14, 2025, 5:45:01 PM (14 days ago) Nov 14
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Maybe hardware issue, but the NIC hosting the experiment link is not reachable.

root@node9:~# ip add show eth3
5: eth3: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
    link/ether 00:04:23:b7:42:4f brd ff:ff:ff:ff:ff:ff
    altname enp9s4f1
    inet 10.10.1.10/24 brd 10.10.1.255 scope global eth3
       valid_lft forever preferred_lft forever
root@node9:~# ping node0
PING node0 (10.10.1.1) 56(84) bytes of data.
^C
--- node0 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2050ms

root@node9:~# ifconfig eth3
eth3: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        inet 10.10.1.10  netmask 255.255.255.0  broadcast 10.10.1.255
        ether 00:04:23:b7:42:4f  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

root@node9:~#
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