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Managing Structured Networks

Managing Structured Networks

Managing Structured Networks

This chapter describes the commands that relate to domains and structured networks. It also contains basic guidance for setting up a structured network. The functions of the commands in this chapter are to:

s5266.gif

A structured network is divided into two or more domains. A domain is a group of regular nodes and a single junction node. A junction node provides communication from one domain to another domain. Connections cannot originate on a junction node.


Setting Up a Domain

Setting up a domain requires specification of a junction node and identification of the domains and the nodes in each domain.

Step 1 Use the cnfjct command to establish a junction node in a domain. This command execute at the junction node before any trunks are added from the junction node to other nodes in the domain.

Step 2 Establish the other nodes in the domain by using the trunk commands to add trunks from the junction node to other nodes in the domain. See Chapter 4 for trunk commands. Not every node in the domain needs to connect directly to the junction node. Other trunks may exist from one non-junction node to another non-junction node in the domain.

Step 3 Use the cnfdmn command to give the domain an identifying number. The cnfdmn command can execute at any node within the domain.

Step 4 After setting up the domains, add trunks between the junction nodes in the domains.


Summary of Commands

Table 13-1 shows the full name and starting page for the description of each command that is specific to structured networks.

Table 13-1 :

Command Description Page
cnfdmn Configure domain 13-3
cnfjct Configure junction node 13-4
dspdmns Display domain alarm status 13-5
dspjctnw Display junction network 13-7
dspnds Display all nodes 13-9
dspnwrt Display network route 13-11
prtjctnw Print junction network 13-13


cnfdmn

Assigns a domain number to a node. Enter the cnfdmn command at any node in the domain. This command is used before packet lines are added to the other nodes in the domain. The domain name includes the domain number and appears as D1, D2, D3, etc. The domain name precedes the node name and is separated by a period when packet lines are eventually added to other junction nodes. The following command sequence is typical for configuring a junction node:

The first command configures the node as a junction node. The second command is optional: it names the junction node if it is different from the existing name. The third command assigns a number to the domain. The display screen shows the domain name and node names after the trunks are added from the junction node to the other nodes in the domain. In the current example, the junction node name "alpha" subsequently appears as "D1.alpha."


Full Name

Configure a domain number


Syntax

cnfdmn <domain number>


Related Commands

cnfjct, cnfname


Attributes

Privilege 1
Jobs Yes
Log Yes
Node IPX, IGX, BPX
Lock Yes


Example 1 Description

cnfdmn 1

Assign domain number 1 to a node.

Table 13-2 : cnfdmn -- Parameters

Parameter Description
domain number Specifies a number for a domain. The range is 1--8.


cnfjct

Specifies a node as a junction node. This command can also delete junction node specification.


Full Name

Configure junction node


Syntax

cnfjct <Y/N>


Related Commands

cnfdmn, cnfname


Attributes

Privilege 1
Jobs Yes
Log Yes
Node IPX, IGX, BPX
Lock Yes


Example 1 Description

cnfjct y

Create a junction node.


Example 2 Description

cnfjct n

Delete a junction node.

Table 13-3 : cnfjct -- Parameters

Parameter Description
Y/N Specifies whether junction node status is added to or deleted from a node. "Y" indicates that the node is a junction node. "N" indicates that the node is not a junction node.


dspdmns

Displays the alarm state of all domains in a structured network. Execute dspdmns at any node in a structured network. The display shows only whether the alarm is major or minor. The dspnds command indicates nodes with alarms. To investigate alarm conditions on a remote node, use the vt command to start a virtual terminal session on the node. Use the dspalms command to get information on the alarm conditions at the node. The screen display is dynamic, so clearing an alarm after this command is entered changes the screen display.


Full Name

Display domain alarm status


Syntax

dspdmns


Related Commands

dspnds, dspalms, dspcons


Attributes

Privilege 1
Jobs No
Log No
Node IPX, IGX, BPX
Lock No


Example 1 Description

dspdmns

Display the alarm status of domains in a structured network.


System Response


D3.delta TRM   YourID:1        IPX 16    8.2    Mar. 23 1996 09:55 PST


Domain  Alarm  Junction Nodes
1    alpha  zeta
2    beta  phaser
3  Minor  delta  jammer
4    gamma  telsa
5
6
7
8






Last Command: dspdmns




Next Command:


dspjctnw

Displays the interconnection of junction nodes. The dspjctnw command can execute at only a junction node. The information consists of the trunk numbers that connect all the junction nodes. For each trunk, the two entries that appear are "from-to" and "to-from."


Full Name

Display junction network


Syntax

dspjctnw [+b | -b] [+z | -z]


Related Commands

dspnw, prtjctnw


Attributes

Privilege 1--6
Jobs No
Log No
Node IPX, IGX, BPX
Lock No


Example 1 Description

dspjctnw

Display junction network information. The system response in this example is an over-simplified, two-junction network with only one trunk.


System Response


D1.alpha          TRM   YourID:1        IPX 16    8.2    Mar. 23 1996 09:55 PST

Junction  Alarm  Trunk  Trunk  Trunk
D2.beta  10-9/D1.alpha
alpha  9-10/D2.beta













Last Command: dspjctnw




Next Command:


 Table 13-4  :        


  


  
Parameter

Description




+b

Specifies that only lines that support bursty data are displayed.




-b

Specifies that only lines that do not support bursty data are displayed. 




+z

Specifies that only lines that use ZCS encoding are displayed.




-z

Specifies that only lines that do not use ZCS encoding are displayed.


dspnds

Displays the name, type, and alarm status of all nodes within the domain of the node executing the command. The nodes are grouped by domain, with one domain per display. The remote node alarm status is provided on a per-domain basis. Therefore, a virtual terminal session (vt) on the remote node is necessary to obtain specific alarm information. If a node is in alarm, its name is highlighted, and the alarm type (major/minor) is displayed. A junction node is identified by the word "Yes" printed under the Jct column.


Full Name

Display all nodes


Syntax

dspnds [+n | -p | -d | domain]


Related Commands

dspnw


Attributes

Privilege 1--6
Jobs No
Log No
Node IPX, IGX, BPX
Lock No


Example 1 Description

dspnds

Display the alarm status of all nodes within the domain


System Response


alpha          TRM   YourID:1        IPX 16    8.2    Mar. 23 1996 09:42 PST 
                                                                                
NodeName Alarm                                                                  
alpha    MAJOR                                                                  
beta     MAJOR                                                                  
gamma    MAJOR                                                                  
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
Last Command: dspnds                                                            
                                                                                
                                                                                
Next Command:

Table 13-5 : dspnds -- Optional Parameters

Parameter Description
domain number Specifies the domain number (1--8). Only the nodes within the specified domain are displayed.


dspnwrt

Displays the end-to-end network route for a connection or group of connections. Enter the dspnwrt command at an end point of the connection. The display screen shows a snapshot of the present route for the connection. If a re-route occurs soon after the information appear, the new route does not appear until dspnwrt is again entered.


Full Name

Display network route


Syntax

dspnwrt <connection number>


Related Commands

dspnw, addcongrp, grpcon


Attributes

Privilege 1--6
Jobs No
Log No
Node IPX, IGX, BPX
Lock Yes


Example 1 Description

dspnwrt 6.1

Display a network route. The example response illustrates a simplified structured network with a single connection.


System Response


D1.alpha          TRM   YourID:1        IPX 16    8.2    Mar. 23 1996 09:55 PST

Network Route for 6.1  Snapshot

Domain
Local=alpha  10-- 7beta




Junction:  D1.beta  9--10D2.gamma




Remote:  gamma  9-- 8delta






Last Command: dspnwrt 6.1




Next Command:

The system response is based on the following network topology:

s5308.gif

The dspnwrt command must be entered at node D1.alpha or D2.delta (the end points of the connection).

Table 13-6 : dspnwrt -- Optional Parameters

Parameter Description
connection number Specifies the connection end point.


prtjctnw

Prints the interconnection of junction nodes. Enter the prtjctnw command at only a junction node. The information consists of the trunk numbers interconnecting all junction nodes. For each trunk, the two entries have the form "from-to" and "to-from." The prtjctnw command uses the same syntax and prints the same information as the dspjctnw command.


Full Name

Print junction network


Syntax

prtjctnw [+b | -b] [+z | -z]


Related Commands

dspnw, dspjctnw


Attributes

Privilege 1--6
Jobs Yes
Log No
Node IPX, IGX, BPX
Lock Yes

Table 13-7 : prtjctnw -- Optional Parameters

Parameter Description
+b Specifies that only lines that support bursty data are displayed.
-b Specifies that only lines that do not support bursty data are displayed.
+z Specifies that only lines that use ZCS encoding are displayed.
-z Specifies that only lines that do not use ZCS encoding are displayed.

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