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10/40/100G Loopback Transceiver for I/F link check

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10/40/100G Loopback Transceiver for I/F link check

2018/08/25
SAKURA Internet, Inc.
Research Center
SR / Naoto MATSUMOTO

Published in: Technology
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10/40/100G Loopback Transceiver for I/F link check

  1. 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. 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 10G SFP+ Passive Loopback Module 40G QSFP+ Loopback Module 100G QSFP28 Loopback Module

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