I run a DHCP server on a Netware 6.5 SP4 cluster.
The cluster serves about 2000 ip-telephones (30 minutes leasing time).

It seemes that there is some kind of overload problem, the telephones dont
allways get their ip-address, and there is some kind of slowness when
handling the addreses offering.

In the DHCPSRVR logging screen (-D3) there is an intermittent message
Incoming packets dropped. Protocol Engine overflowed !

I dont find anything on Novells supportsite for this error message.
The inbount och outbount traffic lays arount 1.5 - 2.0 MBit, so there is
no NIC issue (The NIC stats is OK).
I need to get this running smoothly, and i prefer to keep Netware as a
operating system for this quite large ip-telephone solution =)

What is the next step?
A newer SP?

best regards,
Heiti Ernits