10/40/100G Loopback Transceiver for I/F link check 2018/08/25 SAKURA Internet, Inc. Research Center SR / Naoto MATSUMOTO

1. 10/40/100G Loopback Transceiver
for I/F link check
2018/08/25 SAKURA Internet, Inc. Research Center SR / Naoto MATSUMOTO
(C) Copyright 1996-2018 SAKURA Internet Inc
(社外秘)

2. 10/40/100G Loopback Transceiver for I/F link check
2
# ethtol enp23s0
Settings for enp23s0:
Supported ports: [ ]
:
Supported pause frame use: Symmetric
Supports auto-negotiation: Yes
Advertised link modes: 40000baseCR4/Full
Advertised pause frame use: No
Advertised auto-negotiation: Yes
Speed: Unknown!
Duplex: Unknown! (255)
Port: Other
PHYAD: 0
Transceiver: internal
Auto-negotiation: off
Supports Wake-on: d
Wake-on: d
Current message level: 0x00000007 (7)
drv probe link
Link detected: no
# ifconfig -a enp23s0
enp23s0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether 3c:fd:fe:a3:78:f8 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 117 bytes 20190 (19.7 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
# ethtol enp23s0
Settings for enp23s0:
Supported ports: [ FIBRE ]
Supported link modes: 40000baseCR4/Full
Supported pause frame use: Symmetric
Supports auto-negotiation: Yes
Advertised link modes: 40000baseCR4/Full
Advertised pause frame use: No
Advertised auto-negotiation: Yes
Speed: 40000Mb/s
Duplex: Full
Port: Direct Attach Copper
PHYAD: 0
Transceiver: internal
Auto-negotiation: off
Supports Wake-on: d
Wake-on: d
Current message level: 0x00000007 (7)
drv probe link
Link detected: yes
# ifconfig -a enp23s0
enp23s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
ether 3c:fd:fe:a3:78:f8 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 117 bytes 20190 (19.7 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
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