Re: Slow DHCP....

I've seen a simmilar problem in a Cisco Switch with "Port Fast" (spanning
tree detection) set.
udhcpc was updated.

>
> Time to wake up the list :)
>
> I'm having a weird problem on some old BayStack 310 24T switches. I'm
> getting almost instant messages saying "No dhcp.Network not initialized"
> or something like that when the client has loaded the NIC and is about
> to get IP via DHCP.
> For some reason these BayStack switches causes the DHCP request/response
> to take 10-20 seconds. UDHCPC is run with the -n switch which makes it
> fail on DHCP if an address is not received within a few seconds. (This
> is run in /etc/init.d/rcS)
>
> I resolved the problem by removing the -n switch. Its better to wait a
> little longer than to make the client halt. :)
>
> I've tried all the different port configurations on the switch.
> Autonegotiation ON and OFF. Half duplex and Full duplex. I've tried em
> all. Same slow DHCP request/response.
> Also tried many different NICs...tho all of them are Intel Pro 100
> (various PROM versions, old ones and new) and 3Com (3C905B TX Fast also
> with various PROM versions, old ones and new).
>
> I've also tried updating the firmware on the switch to the current
> version. No change.
>
> The network is running on 10Mbit and the clients are all installed on
> the harddisk using Grub.
>
> The strangest thing of all....I've run thin clients on this switch since
> PXES 0.5-1 without this problem! I got this problem when I upgraded the
> clients to PXES 0.8-9
>
> So I was wondering...has anything like NIC drivers, DHCP routines or
> similar been changed that might explain this ?
>
>
> Regards,
>
> Einar Eliassen
>
>
>
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