2006/8/18, Dan Nelson <[EMAIL PROTECTED]>:
In the last episode (Aug 17), Alan Amesbury said:
> OK, booting *too* quickly is a somewhat unusual problem..... I have
> FreeBSD 6.1-RELEASE-p3 running on a Dell PowerEdge 850. For some
> reason, in the PowerEdge 850 Dell chose to replace the perfectly
> adequate em(4) adapters found on the PE750 with bge(4) hardware.
> FreeBSD identifies these adapters as BCM5750A1, but Dell says they're
> actually Broadcom 5721J adapters instead. See
>
> http://www.dell.com/downloads/global/products/pedge/en/850_specs.pdf
>
> for details. The switch to which the host is connected is a Cisco
> Catalyst 3750. How this relates to FreeBSD, however.....
Have you enabled portfast on the Cisco?
http://www.cisco.com/warp/public/473/12.html#c2k
We have similar problems on various hardware and we also believe it's
caused by the Spanning Tree Protocol procedure done during the switch
port initialization. I don't like the idea of using portfast as it
makes the switch less robust so I tried to delay the boot using an rc
script as well:
/etc/rc.d/slow_interface_startup:
---
#!/bin/sh
# PROVIDE: slow_interface_startup
# REQUIRE: netif
# BEFORE: NETWORKING
slow_interface_startup_enable=${slow_interface_startup_enable:-NO}
slow_interface_startup_duration=${slow_interface_startup_duration:-50}
. /etc/rc.subr
name=slow_interface_startup
rcvar=`set_rcvar`
start_cmd=slow_interface_startup_start
stop_cmd=:
slow_interface_startup_start() {
echo -n "Waiting for interfaces to get ready" \
"($slow_interface_startup_duration seconds)"
sleep "$slow_interface_startup_duration"
echo
}
load_rc_config $name
run_rc_command "$1"
---
Then you can add to rc.conf:
slow_interface_startup_enable="YES"
And optionally also (in seconds):
slow_interface_startup_duration="123"
It's a little hack but it works as expected. Anyway, in some cases it
does not help. The NIC is probably reset at some later point. I have
not investigated it further yet.
Another thing to check is whether you have alias IPs. I believe the
bge driver has to reset the card every time you add or remove an IP.
I know the ti driver (whose chipset the broadcom chips are based on)
had that problem.
Yes, but I believe that all such operations are done by the netif script.
Martin
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