The IP Protocol Configuration screen (#156) in
Figure 8-5 "IP Protocol Configuration
Screen" is displayed when you press the [Go To IP] function key at
the Protocol Configuration screen (Figure 8-4
"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 Token Ring NI.
Figure 8-5 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.
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
An IP subnet mask is used when configuring subnetworks. The mask
identifies the network portion of an IP address and the bit of the node
portion of an IP address 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.