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ATM Switch Router Software Configuration Guide
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Chapter11 Configuring ATM Routing and PNNI
Advanced PNNI Configuration
Configuring the Complex Node Representation for LGNs
By default, higher-level logical group nodes (LGNs) represent their child peer groups (PGs) in the
simple node representation. With simple node representation, the entire peer group is represented as a
single node. When there are many nodes in the child peer grou p, you can use complex node
representation to present a more accurate model of the PG. With complex node representation, the PG is
represented by a nucleus, or center, and border ports.
For a detailed description of complex node representation and implementation guidelines, refer to the
Guide to ATM Technology.
To configure complex node representation, perform the following steps, beginning in global
configuration mode:
Example
The following example shows how to configure a PNNI complex node:
Switch(config)# atm router pnni
Switch(config-atm-router)# node 2
Switch(config-pnni-node)# nodal-representation complex

Displaying the PNNI Complex Node Configuration

To display the PNNI complex node configuration, perform the following task in privileged EXEC mode:
Command Purpose
Step1 Switch(config)# atm router pnni
Switch(config-atm-router)#
Enters ATM router PNNI mode.
Step2 Switch(config-atm-router)# node local-node-index
Switch(config-pnni-node)#
Enters node configuration mode and specifies
the local node you want to configure.
Step3 Switch(config-pnni-node)# nodal-representation
{simple | complex [threshold threshold-value |
radius-only]}
Configures complex nodal representation and
specifies how to handle exceptions.
Command Purpose
show atm pnni aggregation node Displays the PNNI complex node configuration.