HP 3000 Manuals HP 3000 Manuals
Internet Protocol Configuration The IP Protocol Configuration screen (#156) in figure 8-5 is displayed when you press the [Go To IP] function key at the Protocol Configuration screen (figure 8-4). 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 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: 1. Enter the fully qualified IP address (for example, Class C, C 192.191.191 009) OR 2. 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 where xxx is a value ranging from 000 to 255, representing the node portion of the 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 zeroes 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 (optional) subnetworks. The mask identifies the network portion of an IP address and the bits 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 either a period (.) or a space. For example, a mask for a Class A network with the subnet field being the first eight bits of the node part would be expressed as 255 255.000.000. The default is no IP mask.
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