bonding - failed to get speed of NIC ?

[William Reich]

We do not see this problem when IP bonding is disabled.


Also, the switching from 100 to 1000 noted by Nicolas does
not occur on my system.

Also recall that this is not a "hard" problem". The problem
occurs only 10% of the time.

wr


++++++
Nicolas Cuissard wrote :

On my server, the link speed cannot be detected at first but is set to 1000Mbps just after :

eth0: Broadcom NetXtreme II BCM5708 1000Base-SX (B2) PCI-X 64-bit 133MHz found at mem dc000000, IRQ 169, node addr 001e4f32f79e
eth1: Broadcom NetXtreme II BCM5708 1000Base-SX (B2) PCI-X 64-bit 133MHz found at mem da000000, IRQ 185, node addr 001e4f32f7a0

bonding: bond0: Warning: failed to get speed and duplex from eth0, assumed to be 100Mb/sec and Full.
bonding: bond0: enslaving eth0 as a backup interface with an up link.
ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready
bnx2: eth0 NIC SerDes Link is Up, 1000 Mbps full duplex, receive & transmit flow control ON

bonding: bond0: Adding slave eth1.
bnx2: eth1: using MSI
bonding: bond0: Warning: failed to get speed and duplex from eth1, assumed to be 100Mb/sec and Full.
bonding: bond0: making interface eth0 the new active one.
bonding: bond0: enslaving eth1 as a backup interface with an up link.
bnx2: eth1 NIC SerDes Link is Up, 1000 Mbps full duplex, receive & transmit flow control ON


--

+++++++++++


-----Original Message-----
From: redhat-list-bounces at redhat.com [mailto:redhat-list-bounces at redhat.com] On Behalf Of Thomas Fess
Sent: Tuesday, September 01, 2009 8:55 AM
To: General Red Hat Linux discussion list
Subject: Re: bonding - failed to get speed of NIC ?

Does this happen while not doing NIC bonding?  It looks like a NIC problem not a nic-bonding issue, maybe a drive issue.  (emulex or Qlogic)




________________________________
From: William Reich <reich at ulticom.com>
To: General Red Hat Linux discussion list <redhat-list at redhat.com>
Sent: Monday, August 31, 2009 3:19:36 PM
Subject: bonding - failed to get speed of NIC ?


I have a system setup with IP bonding.
The NIC cards are 1gig,
but sometimes, not always, I get this error ( below )
which makes the NICs into 100Mbps.
( observed on the RH 4 Update 4 system. )

Anybody know why ?

wr

++++++++


Aug 25 14:05:55 jazz kernel: bonding: Warning: failed to get
speed/duplex from eth3, speed forced to 100Mbps, duplex forced to Full.
Aug 25 14:05:55 jazz kernel: bonding: bond0: making interface eth3 the
new active one.
Aug 25 14:05:55 jazz kernel: bonding: bond0: enslaving eth3 as an active
interface with an up link.
...
Aug 25 14:05:55 jazz ifup: Enslaving eth4 to bond0
Aug 25 14:05:55 jazz kernel: bonding: Warning: failed to get
speed/duplex from eth4, speed forced to 100Mbps, duplex forced to Full.
Aug 25 14:05:55 jazz kernel: bonding: bond0: enslaving eth4 as a backup
interface with an up link.

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