home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
OS/2 Shareware BBS: 8 Other
/
08-Other.zip
/
tunenbzp.zip
/
README.TXT
next >
Wrap
Text File
|
1996-03-06
|
5KB
|
103 lines
TUNENB.EXE was designed to examine the effects of various combinations
of NETBIOS parameters on the NETBIOS 64KB segment and the NETBUEI 64KB
segment. It is believed to be accurate but has not been formally
tested by IBM. You may use TUNENB.EXE at your own risk. TUNENB.EXE
is not supported by IBM.
The TUNENB.EXE program does calculations to determine the maximum
permissible values for configurable parameters affecting NETBIOS and
NETBEUI performance. Output is displayed, and should be used as a
guide in configuration of parameters in the PROTOCOL.INI and
IBMLAN.INI files. You may allow the input values to default, or
override them with command line options.
The constraints of both the NETBEUI and NETBIOS 64KB segment
limitations and variables allocated by the Lan Server or Lan Requester
redirector are considered in the tuning algorithms. This program is
valid for use on network configurations using NETBIOS with NETBEUI.
Syntax:
TUNENB /S nn /N nn /C nn /P nn /L nn /D nn /G nn /R nn /A nn /B nn /?
where /S nn Sessions - This parameter specifies the maximum number of
NETBIOS sessions that can be open simultaneously. The
NETBIOS protocol uses a session to communicate between
two systems running BETBIOS. If a request fails due to
lack of sessions, the protocol returns an interface-busy
error. (tuning default value 254 per NETBEUI-adapter
binding)
/N nn Names - This parameter specifies the maximum number of
NETBIOS names that can be defined. One name is reserved
for defining the station address of the network adapter
card. If the NETBIOS protocol is bound to multiple
network adapter drivers, this parameter specifies the
maximum number of NETBIOS names in each network adapter
driver's name table. (tuning default value 44 per
NETBEUI-adapter binding)
/C nn Commands - This parameter specifies the number of network
control block (NCB) descriptors to allocate for managing
NCBs submitted to the NETBIOS protocol. (tuning default
value 254 per NETBEUI-adapter binding)
/P nn Packets - This parameter specifies the number of I-frame
packet descriptors that the NETBIOS protocol can use to
build DLC frames from NETBIOS messages. Increase the
value of this parameter if large frames are being sent
through the network. (tuning default value 335 per
NETBEUI-adapter binding)
/L nn Looppackets - This parameter specifies the number of
internal loopback packet descriptors. Loopback packets
are used when sending I frames or UI frames, if the
sending node and the receiving node are the same.
(tuning default value 8 per NETBEUI-adapter binding)
/D nn Datagrampackets - This parameter specifies the number of
data descriptors to allocate for packeting NETBIOS
datagrams into UI-frames. Increase this parameter value
when the NETBIOS protocol sends a large number of
datagrams. (tuning default value 10 per NETBEUI-adapter
binding)
/G nn Selectors - This parameter specifies the number of
internal data descriptors to allocate for global
descriptor table (GDT) selectors. GDT selectors are a
limited OS/2 resource. If too many GDT selectors are
allocated, performance of other application programs and
protocol drivers may be hindered. (tuning default value
15 per NETBEUI-adapter binding)
/R nn Redirector commands - This parameter specifies the number
of commands (NCB's) which are allocated by the Lan Server
(or OS/2 Peer, or Lan Requester) redirector for each
configured adapter. This tuning tool can be used only if
the values are the same for each adapter in multiple
adapter configurations. See the x2 parameter in the netx
(x = 1 - 4) line in the IBMLAN.INI. format:
netx=NETBEUI$,a,pdt,x1,x2,x3
(tuning default value 70 per redirector configured
adapter)
/A nn Adapters - This parameter specifies the number of
network adapters bound by NETBIOS/NETBEUI. (tuning
default value 1)
/B nn This parameter specifies the number of network adapters
configured for the Lan Server (or OS/2 Peer or Lan
Requester) redirector. This is equal to the number of
netx (x = 1 - 4) in the IBMLAN.INI file. (tuning default
value 1)
/? or /H Help - lists the above optional parameters.
This tuning program cannot produce valid results under any of the
following conditions:
- IBM OS/2 NETBIOS OVER TCP/IP (tcpbeui$) is used.
- NetWare NetBIOS Emulation over IPX - IBM Netware Requester (ipxnb$)
is used.
- The redirector (Lan Server, OS/2 Peer, or Lan Requester) is
configured for multiple adapters, and the resource allocations for
commands (NCB's) is not uniform across all adapters.