To Configure Node Mapping

The screens discussed in the following pages allow you to configure shared dial or direct connect and dial node mapping. These screens allow you to specify routes to target (destination) nodes and to indicate the priority of each route.

The number of mappings you enter depends on how many links are on the node you are configuring.

Nodes Having Single Links

If you are configuring a node (call it Node A) that has only one Point-to-Point link to a second node (call it Node B), you enter one route name as the mapping to the adjacent node (Node B).

If there are additional nodes attainable beyond Node B, you would only have to enter one more mapping: make up a route name, and then you can indicate the additional (non-adjacent) nodes by specifying a "wildcard" (@) in the destination IP address field of either the Dialed or Non-dialed Node Mapping Configuration screens.

Nodes Having Multiple Links

If you are configuring a node that has more than one Point-to-Point link, you could ultimately have several paths to a non-adjacent destination node. Hence, if this node has more than one Point-to-Point link, enter a symbolic route name for every other destination node on the network.

The route name is only used during configuration of this node, and you do not have to repeat it when you configure other nodes.

To Select a Node Mapping Screen

To begin configuring node mapping, you should be at the Point-to-Point Link Configuration screen (#44) in Figure 7-2 “Point-to-Point Link Configuration Screen”. You will configure node mapping for each link you are configuring.

Enter the name of a configured link in the field at the bottom of the screen next to the words To configure router mapping enter Link Name.
Press the [Link Routing] key.
If the Type specified for the selected link is SD, proceed to the section in this chapter titled "To Configure Shared Dial Node Mapping."
If the Type specified for the selected link is DD or DC, proceed to the section in this section titled "To Configure Direct Connect/Dial Node Mapping."

To Configure Shared Dial Node Mapping

The Shared Dial Node Mapping Configuration screen (#46) in Figure 7-5 “Shared Dial Node Mapping Configuration Screen”is displayed if you press the [Link Routing] key at the Point-to-Point Link Configuration screen (#44) for a link of type SD.

Figure 7-5 Shared Dial Node Mapping Configuration Screen

Each router NI can have up to 1024 mappings. However, 4096 is the absolute maximum number of unique phone numbers supported per NMCONFIG File.

In the Route Name field, enter a symbolic name that represents a route between the node you are configuring and destination node
In the Destination IP Address field, enter the IP address of the destination node for which a route is being specified.
In the Priority field, enter a number from 1 to 99 to indicate the priority of this route if there are multiple routes to a destination.
In the Phone Number field, enter the telephone number of the destination node. (Leave this field blank if the target node is non-adjacent.)
The Security String field is optional. You may enter a string that remote nodes must use to gain dial link access to the node you are configuring.
In the Disable Route field, leave the default alone unless you want to temporarily disable a configured route.
Press the [Save Data] key to save the data on the screen. Proceed to Chapter 10 “Validating Network Transport and Cross-Validating with SYSGEN” and press the [Validate Netxport] key.
Optional Keys
Press the [Next Link] key to call up another link when you want to configure information about its adjacent and non-adjacent nodes.
Press the [Config Directry] key to configure the Network Directory screen.
Fields
Route Name
A symbolic name, up to eight alphanumeric characters, that represents a route between the node you are configuring and a destination node. The route name is only used within the NMMGR program. It is most useful when the node you are configuring has more than one possible way of accessing a target (destination) node. It identifies different routes to target nodes and is not the actual target node name. It is used because you may need a way to identify more than one route to a target node. There should be at lease one symbolic route name for routes to every other destination node on the network unless you use the "@" wildcard destination IP address.
To help keep track of routes, you can use the destination node name as the route name. If you have more than one route to a given node, you can name the routes nodename1, nodename2, and so forth.
Destination IP Address
IP address of the target (destination) node for which a route is being defined.
Priority
Number from 1 to 99 that indicates which route has precedence (priority) over another when there are multiple routes to a destination. A route to a destination that has a higher priority will take precedence over a route with a lower priority. This field is the primary means of influencing the choice of route.
Phone Number
Required if the link is a dial link. The field must be blank if the target node is non-adjacent. Enter the telephone number as a combination of decimal numbers (0 through 9), dashes, and the following special characters:
/
Separator used for automatic call units that have second dial-tone detect.
E
Optional end-of-number indicator.
D
Three-second delay (used for European modems and automatic call units that require built-in delays).
#
Defined by local phone system.
*
Defined by local phone system.
To disable outbound dialing, enter an exclamation point (!) by itself in the phone number field.
Each router NI can have up to 1024 mappings. However, 4096 is the absolute maximum number of unique phone numbers supported per NMCONFIG File.
Security String
An optional security string that remote nodes must use to gain dial link access to the node. It can be up to eight alphanumeric characters, left justified, with no embedded blanks. The first character must be alphabetic.
Disable Route
Y (yes) or N (no) indicator that allows you to temporarily disable a configured route. Leave the default (N) alone if you do not want to disable the route.

To Configure Direct Connect/Dial Node Mapping

The Direct Connect/Dial Node Mapping Configuration screen (#45) in Figure 7-6 “Direct Connect/Dial Node Mapping Configuration Screen” is displayed if you press the [Link Routing] key at the Point-to-Point Link Configuration screen (#44) for a link of type DD or DC.

Figure 7-6 Direct Connect/Dial Node Mapping Configuration Screen

Each router NI can have up to 1024 mappings. However, 4096 is the absolute maximum number of unique phone numbers supported per NMCONFIG File.

In the Route Name field, enter a symbolic name that represents a route between the node you are configuring and a destination node.
In the Destination IP Address field, enter the IP address of the destination node for which a route is being specified.
In the Priority field, enter a number from 1 to 99 to indicate the priority of this route if there are multiple routes to a destination.
In the Disable Route field, leave the default alone unless you want to temporarily disable a configured route.
If this is a dial link, in the Phone Number field, enter the telephone number of the destination node.
The Security String field is optional. You may enter a string that remote nodes must use to gain dial link access to the node you are configuring.
Enter information for non-adjacent (remote) nodes in the same manner in the fields provided. (You do not configure a phone number or security string for non-adjacent nodes.)
Press the [Save Data] key to save the data on the screen. Proceed to Chapter 10 “Validating Network Transport and Cross-Validating with SYSGEN” and press the [Validate Netxport] key.

Figure 7-7 Using an @ for Mapping Non-Adjacent Nodes

Priority

Number from 1 to 99 that indicates which route has precedence (priority) over another when there are multiple routes to a destination. A route to a destination that has a higher priority will take precedence over a route with a lower priority.

Disable Route

Y (yes) or N (no) indicator that allows you to temporarily disable a configured route. Leave the default (N) alone if you do not want to disable the route.

Phone Number

Required if the link is a dial link. The field must be blank if the target node is non-adjacent. Enter the telephone number as a combination of decimal numbers (0 through 9), dashes, and the following special characters:

/: Separator used for automatic call units that have second dial-tone detect.
E: Optional end-of-number indicator.
D: Three-second delay (used for European modems and automatic call units that require built-in delays).
#: Defined by local phone system.
*: Defined by local phone system.

To disable outbound dialing, enter an exclamation point (!) by itself in the phone number field.

Each router NI can have up to 1024 mappings. However, 4096 is the absolute maximum number of unique phone numbers supported per NMCONFIG File.

Security String: An optional security string that remote nodes must use to gain dial link access to the node. It can be up to eight alphanumeric characters, left justified, with no embedded blanks. The first character must be alphabetic.

To Configure Node Mapping

Technical documentation

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To Select a Node Mapping Screen

To Configure Shared Dial Node Mapping

Fields

To Configure Direct Connect/Dial Node Mapping