11-14
ATM Switch Router Software Configuration Guide
OL-7396-01
Chapter 11
Configuring ATM Routing and PNNI
Basic PNNI Configuration
Displaying the Summary Address Configuration
To display the ATM PNNI summary address configuration, use the following privileged EXEC
command:
Example
The following example shows the ATM PNNI summary address configuration using the
show atm pnni
summary
privileged EXEC command:
Switch#
show atm pnni summary
Codes: Node - Node index advertising this summary
Type - Summary type (INT - internal, EXT - exterior)
Sup - Suppressed flag (Y - Yes, N - No)
Auto - Auto Summary flag (Y - Yes, N - No)
Adv - Advertised flag (Y - Yes, N - No)
Node Type Sup Auto Adv Summary Prefix
~~~~ ~~~~ ~~~ ~~~~ ~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 Int N Y Y 47.0091.8100.0000.0040.0b0a.2a81/104
2 Int N Y N 47.01b1.0000.0000.0000.00/80
Configuring Scope Mapping
The PNNI address scope allows you to restrict advertised reachability information within configurable
boundaries.
Note
On UNI and IISP interfaces, the scope is specified in terms of organizational scope values ranging from
1 (local) to 15 (global). (Refer to the ATM Forum UNI Signaling 4.0 specification for more
information.)
In PNNI networks, the scope is specified in terms of PNNI levels. The mapping from organizational
scope values used at UNI and IISP interfaces to PNNI levels is configured on the lowest-level node. The
mapping can be determined automatically (which is the default setting) or manually, depending on the
configuration of the
scope mode
command.
In manual
mode, whenever the level of node 1 is modified, the scope map should be reconfigured to
avoid unintended suppression of reachability advertisements. Misconfiguration of the scope map might
cause addresses to remain unadvertised.
In automatic
mode, the UNI to PNNI level mapping is automatically reconfigured whenever the level of
the node 1 is modified. The automatic reconfiguration avoids misconfigurations caused by node level
modifications. Automatic adjustment of scope mapping uses the values shown in
Table 11-1
.
Command
Purpose
show atm pnni summary
Displays a summary of the PNNI hierarchy.