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Configuring PNNI Routing
Configuring PNNI Routing
ATM Services Configuration Guide for CBX 3500, CBX 500, GX 550, and B-STDX 9000 1/19/0521-47
4. Choose OK to set the PNNI node instance parameters and close the Add PNNI
Node dialog box.
Import Exteriors Indicates whether or not addresses that are external to the
PNNI (or VNN OSPF) routing domain can be imported to the
PNNI (or VNN OSPF) routing domain.
When this variable is enabled (check box selected) on
PNNI/VNN gateway switches, addresses from different
regional networks are automatically routed across a VNN
OSPF or PNNI network backbone to other regional networks.
This parameter applies only to switches that have both VNN
OSPF and PNNI trunks.
Note: To prevent advertisement or call setup looping, the
following safeguards are built into address exportation:
• Addresses can be dynamically advertised across a
maximum of three separate routing domains.
• An address is not exported to a neighboring routing
domain if that address is already defined as an interior
reachable address within that domain.
These safeguards cannot be disabled.
Node Link Bw Factor
(%)
Represents the degree of significance in the change of
bandwidth on a PNNI link for a particular QoS service class,
before that link is re-advertised in the network. The default is
10%. The range of possible values is 10% to 99%.
For example, if bandwidth (BW) Factor is 10%, a new
horizontal link PTSE is advertised by the switch every time
the available bandwidth of one of its links changes by 10% (or
greater) of the maximum available bandwidth.
Table 21-4. Add PNNI Node Dialog Box Fields (Continued)
Field Action/Description
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