Hi Rick

Suggestions:

1) Check your Maximum Physical Receive Packet Size (or maximum frame size) and 
tune it - it's a set parameter and the command is  "SET MAXIMUM PHYSICAL 
RECEIVE PACKET SIZE = XXX", and you have to put it in the STARTUP.NCF!

The normal size on Ethernet is 1514 Bytes... BUT if you are using a NIC based 
on Intel chipset it's different!!! You will have to use a size of 2048 Bytes... 
due to the fact that the driver for these NIC's requires this "overhead" to 
function properly!

2)If you are using some, using the words of Novell ;o), "inferior" routing 
equipment which are incapable of splitting the IP-packet you might get some 
problems on a NetWare network... there are another set command to solve this 
"SET ALWAYS ALLOW IP FRAGMENTATION = ON"

3) Change the MTU Size - done by Enter "SET USE SPECIFIED MTU = ON" and "SET 
MAXIMUM INTERFACE MTU = XXX" (the default, and the minimum, value is 576).  

4) And last... tune your DSM.OPT regarding the following: TCPWINDOWSIZE & 
TCPBUFFSIZE
 
Regards
Flemming


-----Oprindelig meddelelse-----
Fra: Paul Ripke [mailto:stix AT STIX.HOMEUNIX DOT NET]
Sendt: 24. september 2003 00:27
Til: ADSM-L AT VM.MARIST DOT EDU
Emne: Re: Very long Netware restore


On Wednesday, Sep 24, 2003, at 07:43 Australia/Sydney, Kamp, Bruce
wrote:

> I don't the exactly what MTU means....  Basicly it is the packet size.
>  We
> found this out after my network guys ran Sniffer on our network.  The
> difference in restore tmes was 2-3 days to about 10-12 hours!  Your
> network
> people should be able to give a better definition!  I colocated my
> tapepool
> after my first big reatore.

MTU = Maximum Transmission Unit. Yes, basically it is the packet size
on the wire. For normal ethernet, it has to be 1500 bytes. There is a
concept known as "jumbo frames" that is supported on some gig-e
infrastructure where this can be increased; not sure about 100 Mbit
ethernet though.

Instead, I'd be looking at the TCP window size. Our clients (no Netware)
vary between 16 KB and 1.5 MB, depending on OS, age, backup types, etc.

Cheers,
--
Paul Ripke
Unix/OpenVMS/TSM/DBA
I love deadlines. I like the whooshing sound they make as they fly by.
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