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  • Works great as management interface for laptop

    posted by netmartin on 04/21/2012
    0

    Involvement:Expert (understands the inner workings) - Ownership:more than 1 month

    Pros:

    Works with any recent Linux distribution out of the box. It is reliable, no lockups or freezes. As rating suggests, build quality is very good.

    Cons:

    None really. As a note here I would mention that one may use some USB extension cable in case USB ports are close to each other. This adapter is wide enough to block adjacent USB ports.

    OtherThoughts:

    I use it for laptops which have single gigabit LAN connection which is used to receive mirrored traffic from network switch. Thus I needed additional interface (100Mbit/s is more than enough) to control these laptops remotely. I bought two of them in July 2010 and I ordered another one since then. I've never tested it with any non-Linux OS.

    Some outputs ...

    [lsusb]

    Bus 001 Device 004: ID 9710:7830 MosChip Semiconductor MCS7830 Ethernet

    [ethtool]

    driver: MOSCHIP usb-ethernet driver

    version: 22-Aug-2005

    firmware-version: MOSCHIP 7830/7730 usb-NET adapteusb-0000:00:1d.7-4

    bus-info: usb-0000:00:1d.7-4

    Settings for eth1:

    Supported ports: [ TP MII ]

    Supported link modes: 10baseT/Half 10baseT/Full

    100baseT/Half 100baseT/Full

    Supports auto-negotiation: Yes

    Advertised link modes: 10baseT/Half 10baseT/Full

    100baseT/Half 100baseT/Full

    Advertised pause frame use: No

    Advertised auto-negotiation: Yes

    Link partner advertised link modes: 10baseT/Half 10baseT/Full

    100baseT/Half 100baseT/Full

    Link partner advertised pause frame use: No

    Link partner advertised auto-negotiation: Yes

    Speed: 100Mb/s

    Duplex: Full

    Port: MII

    PHYAD: 19

    Transceiver: internal

    Auto-negotiation: on

    Current message level: 0x00000007 (7)

    Link detected: yes

    [lsmod]

    usbnet 14943 1 mcs7830

    mii 4381 2 mcs7830,usbnet

    Bottomline:

    I haven't done any latency or bandwidth benchmarks, but I have no indication that it should perform well. I use it as additional management interface and it does the job very well.

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