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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 that 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. You will configure node
mapping for each link you are configuring.
1. 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.
2. Press the [Link Routing] key.
3. If the Type specified for the selected link is SD, proceed to the
section in this chapter titled "To Configure Shared Dial Node
Mapping."
4. If the Type specified for the selected link is DD or DC, proceed
to the section in this 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 is
displayed if you press the [Link Routing] key at the Point-to-Point Link
Configuration screen (#44) for a link of type SD.
![[]](../../pic3k/M013399/FFN333c50.gif)
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.
Steps.
1. In the Route Name field, enter a symbolic name that represents a
route between the node you are configuring and a destination node.
2. In theDestination IP Address field, enter the IP address of the
destination node for which a route is being specified.
3. In thePriority field, enter a number from 1 to 99 to indicate the
priority of this route if there are multiple routes to a
destination.
4. In thePhone Number field, enter the telephone number of the
destination node. (Leave this field blank if the target node is
non-adjacent.)
5. 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.
6. In theDisable Route field, leave the default alone unless you want
to temporarily disable a configured route.
7. Press the [Save Data] key to save the data on the screen. Proceed
to chapter 10 titled "Validating the 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 IP address of the target (destination) node for which
Address 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 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.
![[]](../../pic3k/M013399/FFN343c50.gif)
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.
Steps.
1. In theRoute Name field, enter a symbolic name that represents a
route between the node you are configuring and a destination node.
2. In theDestination IP Address field, enter the IP address of the
destination node for which a route is being specified.
3. In thePriority field, enter a number from 1 to 99 to indicate the
priority of this route if there are multiple routes to a
destination.
4. In the Disable Route field, leave the default alone unless you
want to temporarily disable a configured route.
5. If this is a dial link, in thePhone Number field, enter the
telephone number of the destination node.
6. 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.
7. 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.)
8. Press the [Save Data] key to save the data on the screen. Proceed
to chapter 10 titled "Validating the 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 IP address of the target (destination) node for which
Address a route is being defined. An example of an address
is C 192.009.007 001. If you were configuring a node
that only had one point-to-point link (the one
specified in the link name field), you would only
have to configure this field twice: first to specify
the destination IP address of the adjacent node, and
second, to indicate the route to all non-adjacent
nodes by specifying a left-justified "at sign" (@) in
the destination IP address field.
See the example in figure 7-7. When configuring Node
A, your first mapping specifies that Node B is an
adjacent destination IP address of Node A. For your
second mapping, you could enter an @ in the
destination IP address field to indicate that
non-adjacent nodes can be reached through Node B
(over link 1).
![[]](../../pic3k/M013399/FFN353c50.gif)
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.