Beta Draft Confidential
21-441/19/05 ATM Services Configuration Guide for CBX 3500, CBX 500, GX 550, and B-STDX 9000
Configuring PNNI Routing
Configuring PNNI Routing
Table 21-4. Add PNNI Node Dialog Box Fields
Field Action/Description
Peer Group ID
Admin Status Choose the Up (default) or Down button. If PNNI Admin
Status is Down, then PNNI Node Oper Status is also Down.
Level (0..104) Enter the number of significant bits available for forming the
PNNI peer group identifier. The value can be from zero(0) to
104.
By determining the number of bits allocated for the peer group
identifier, the PNNI Level also determines the level of the
switch in the PNNI routing hierarchy. As you ascend the
hierarchy, the number of bits allocated for peer group
identifiers decreases, resulting in smaller peer group
identifiers. For example, a node that is the grandparent of a
peer group two levels lower will have fewer bits reserved for
its peer group identifier than its grandchildren. As a result, the
grandparent will have a smaller peer group identifier than the
peer group identifier of its grandchildren.
Identifier in Hex Enter, in hexidecimal format, the identifier of the PNNI peer
group to which the switch belongs. The number of significant
bytes in the identifier is determined by the PNNI level value.
This identifier functions as a routing prefix.
Peer Group Lead
Lowest Node Select the check box (default) to configure this node as a
lowest-level node in the switching system.
Clear the check box if this node represents a higher-level LGN
that becomes active when one of the other nodes in this
switching system becomes a PGL.
Note: If multiple node instances are configured, only one node
can have Lowest Node selected.
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