Интересный вопрос. На соседнем лезвии (Ubuntu) ethtool eth0:
Settings for eth0:
        Supported ports: [ FIBRE ]
        Supported link modes:   1000baseT/Full
                                2500baseX/Full
        Supports auto-negotiation: Yes
        Advertised link modes:  1000baseT/Full
                                2500baseX/Full
        Advertised pause frame use: No
        Advertised auto-negotiation: No
        Link partner advertised link modes:  Not reported
        Link partner advertised pause frame use: No
        Link partner advertised auto-negotiation: No
        Speed: 1000Mb/s
        Duplex: Full
        Port: FIBRE
        PHYAD: 2
        Transceiver: internal
        Auto-negotiation: on
        Supports Wake-on: g
        Wake-on: g
        Link detected: yes

Т.е. оптикой.
Для сравнения подопытный dmesg -a :

bge0: <HP NC326i Dual Port PCI-E Gigabit Adapter, ASIC rev. 0x009003> mem 0xfdff0000-0xfdffffff,0xfdfe0000-0xfdfeffff irq 16 at device 4.0 on pci3
bge0: CHIP ID 0x00009003; ASIC REV 0x09; CHIP REV 0x90; PCI-X 133 MHz
miibus0: <MII bus> on bge0
brgphy0: <BCM5714 1000BASE-T media interface> PHY 1 on miibus0
brgphy0:  1000baseSX-FDX, auto
bge0: Ethernet address: 00:21:5a:46:94:00
bge1: <HP NC326i Dual Port PCI-E Gigabit Adapter, ASIC rev. 0x009003> mem 0xfdfd0000-0xfdfdffff,0xfdfc0000-0xfdfcffff irq 17 at device 4.1 on pci3
bge1: CHIP ID 0x00009003; ASIC REV 0x09; CHIP REV 0x90; PCI-X 133 MHz
miibus1: <MII bus> on bge1
brgphy1: <BCM5714 1000BASE-T media interface> PHY 1 on miibus1
brgphy1:  1000baseSX-FDX, auto
bge1: Ethernet address: 00:21:5a:46:94:01

С уважением,
Александр Хоменко

15.12.2014 16:22, Eugene Grosbein пишет:
On 15.12.2014 21:07, Alexandr Khomenko wrote:
Там нет патчкордов. Свич общается с лезвием через внутренний интерфейс.
Этот интерфейс операционке представляется оптикой или медью?


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