Syntax

SHow -APPN NNtopology

No default

Description

The NNtopology parameter displays topology information for the network nodes on your network that are directly reachable from the network node. The display shows basic information about the nodes such as the node name, node type, and the number of transmission groups the node owns.

The SHow -APPN NNtopology command displays the following information:

================== SHow -APPN NNtopology =====================
----------------------Network Node----------------------------
Node name	Type	RAR	Status	Function support	RSN
US3COMHQ.CN5	VRN	128	UNCONGESTED	ISR	0
US3COMHQ.CN7	VRN	128	UNCONGESTED	ISR	0
US3COMHQ.CUBE	NN	128	UNCONGESTED	ISR	2
US3COMHQ.IBM4	NN	128	UNCONGESTED	ISR	2
US3COMHQ.COM20E	NN	128	UNCONGESTED	ISR	2

Table 27 explains the meanings of the NNtopology display.

Table 27 NNTopology Display Meanings

Display Heading	Meaning
Node name	Network node name.
Type	Indicates whether the network node is real or virtual (used for connection networks).
RAR	Route Addition Resistance, or desirability of routing associated with the network node.
Status	Indicates whether the network node was congested the last time the node was checked.
Function support	Type of function the node is performing. ISR indicates the node is performing Intermediate Session Routing. CDR indicates the node is a Central Directory Server. BORDER indicates the node is performing the border node function. HPR indicates the node is HPR-capable (but not RTP-capable). RTP indicates the node is RTP-capable (note that even though the node is RTP-capable, it may not be performing RTP at the time).
RSN	Resource Sequence Number for the node. Indicates how up-to-date the information regarding the node is. The higher the RSN number is, the more up-to-date the information.