The IP Protocol Configuration screen (#156) in Figure 9-5 “IP Protocol Configuration Screen” is displayed when you
press the [Go To IP] function key at the Protocol
Configuration screen (Figure 9-4 “Protocol Configuration Screen”).
It is also displayed when you type the path name:
@NETXPORT.NI.NIname.PROTOCOL.IP
in the command window of any screen and press the [Enter]
key, where NIname is a configured FDDI NI.
Figure 9-5 IP Protocol Configuration Screen
This screen is used to supply IP protocol information for
the network being configured. Each NI has an IP address. The IP
address field is a key element in IP routing and datagram delivery
algorithms. The IP subnet mask field allows you to identify an IP
subnet mask for the NI named in the path. The store and forward
buffers field is useful for internal resource allocation and performance
tuning.
Press the [Save Data] function key to transfer
the data displayed on the screen to the configuration file you are
creating or modifying. Verify that the data record has been created
by checking that the Data flag is set to Y.
Fields
- Store & forward buffers
This field allocates buffers to support store-and-forward
over the network interface being configured. You do not need to
allocate store-and-forward buffers if you are configuring a non-gateway
node on this network. You must allocate store and forward buffers
if you are configuring an internet gateway and packets from another
network will be forwarded over this network interface.
The number of store-and-forward buffers can be configured
to allow performance tuning for different network types. However,
HP recommends that you use 20 as the store-and-forward buffers.
Consult your HP representative before modifying this value.
If store-and-forward is to be disallowed, set this number
to 0.
Default value: 0
Range: 0-50
 |
 |  |
 |
 | NOTE: If this node is a gateway node, HP recommends that you
use 20 as the store-and-forward buffers. |
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 |  |
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- IP internet address
Enter the internet protocol (IP) address for the
network interface being configured.
There are two methods of entering an internet protocol (IP)
address within NMMGR:
Enter the fully qualified IP address
(for example, Class C, C 192.191.191 009)
OR
Enter only the network (nnn)
and node (xxx) portions of the IP address as
four positive integers between 0 and 255 separated by periods or
blanks (for example, 15.123.44.98).
You need not enter the following items as NMMGR will fill
these in:- Class A, B, C
- Leading zeros for the network and node portion
of the IP address.
Addresses are made up of a network
portion and a node portion. The supported
classes of network addresses have the following forms:
- Class C:
C nnn.nnn.nnn xxx
- Class B:
B nnn.nnn xxx.xxx
- Class A:
A nnn xxx.xxx.xxx
where nnn is a value ranging from 000
to 255, representing eight bits of the network portion of an address
and xxx is a value ranging from 000 to 255,
representing the node portion of an address.
The leftmost group of nnn has the following
ranges for each address class:
- Class C:
192-223
- Class B:
128-191
- Class A:
001-126
Network and node values of all zeros or all ones are not allowed.
These are special values.
Default value: No default, but a value must
be supplied.
- IP subnet mask (optional)
An IP subnet mask is used when configuring subnetworks.
The mask identifies which bits on an IP address will be used to
define a subnetwork. An IP subnet mask is specified in the same
format as an IP address. The 32-bit mask is grouped in octets expressed
as decimal integers and delimited by a period "."
or a space. For example, a mask for a class A network with the subnet
field being the first 8 bits of the node
portion would be expressed as 255 255.000.000. The default is no
IP mask.