bcm5700: eth0 NIC link is DOWN -- er, what does that mean?

Glenn Hutchings wrote:
> Trying to get networking up on AMD64 box with Broadcom network card. It
> uses bcm5700 driver, but I keep getting the message 'eth0 NIC link is
> DOWN'. What exactly does that mean, and how do I fix it?

The only time I see this is when the other end goes down or the ethernet
cable has been disconnected.

Paul

Trying to get networking up on AMD64 box with Broadcom network card. It
uses bcm5700 driver, but I keep getting the message 'eth0 NIC link is
DOWN'. What exactly does that mean, and how do I fix it?

Thanks in advance,

Glenn

In comp.os.linux.networking Glenn Hutchings <(E-Mail Removed)>:
> Trying to get networking up on AMD64 box with Broadcom network card. It
> uses bcm5700 driver, but I keep getting the message 'eth0 NIC link is
> DOWN'. What exactly does that mean, and how do I fix it?

Presuming cables/etc are fine, is the system connected to some
cisco switch?

--
Michael Heiming (X-PGP-Sig > GPG-Key ID: EDD27B94)
mail: echo (E-Mail Removed) | perl -pe 'y/a-z/n-za-m/'
#bofh excuse 411: Traffic jam on the Information Superhighway.

Hi,

There is a known bug with the BCM5700 NIC with Linux drivers where the
card gets reset to HD (Half-Duplex) from FD (Full-Duplex) which will make
the card fail every 15 seconds or so and then just stop working after enough
packet errors hits the NIC. I discovered this when I was setting up a new
Proxy Squid Firewall on a DELL Server. I have not found a fix for it other
than putting a script in to keep resetting the Duplex....I eventually
installed an Intel Gigabit NIC which solved my problem.

Owen


"Michael Heiming" <michael+(E-Mail Removed)> wrote in message
news:m89852-(E-Mail Removed)...
> In comp.os.linux.networking Glenn Hutchings
> <(E-Mail Removed)>:
>> Trying to get networking up on AMD64 box with Broadcom network card. It
>> uses bcm5700 driver, but I keep getting the message 'eth0 NIC link is
>> DOWN'. What exactly does that mean, and how do I fix it?
>
> Presuming cables/etc are fine, is the system connected to some
> cisco switch?
>
> --
> Michael Heiming (X-PGP-Sig > GPG-Key ID: EDD27B94)
> mail: echo (E-Mail Removed) | perl -pe 'y/a-z/n-za-m/'
> #bofh excuse 411: Traffic jam on the Information Superhighway.

In comp.os.linux.networking Owen Greaves <(E-Mail Removed)>:

( top posting fixed )

> "Michael Heiming" <michael+(E-Mail Removed)> wrote in message
> news:m89852-(E-Mail Removed)...
>> In comp.os.linux.networking Glenn Hutchings
>> <(E-Mail Removed)>:
>>> Trying to get networking up on AMD64 box with Broadcom network card. It
>>> uses bcm5700 driver, but I keep getting the message 'eth0 NIC link is
>>> DOWN'. What exactly does that mean, and how do I fix it?
>>
>> Presuming cables/etc are fine, is the system connected to some
>> cisco switch?
[..]

> There is a known bug with the BCM5700 NIC with Linux drivers where the
> card gets reset to HD (Half-Duplex) from FD (Full-Duplex) which will make
> the card fail every 15 seconds or so and then just stop working after enough
> packet errors hits the NIC. I discovered this when I was setting up a new
> Proxy Squid Firewall on a DELL Server. I have not found a fix for it other
> than putting a script in to keep resetting the Duplex....I eventually
> installed an Intel Gigabit NIC which solved my problem.

Dunno, IIRC there are problems with this card on some switches
until you configure portfast.

--
Michael Heiming (X-PGP-Sig > GPG-Key ID: EDD27B94)
mail: echo (E-Mail Removed) | perl -pe 'y/a-z/n-za-m/'
#bofh excuse 52: Smell from unhygienic janitorial staff wrecked
the tape heads