Cabletron Systems SmartCell 6A000 User Manual

4-8   SmartCell 6A000 User Guide

Setting Up Routes

  Switch Administration

IISP routes between A, B, and C can be defined by 

11:22: + group identifier byte 

Collectively, groups A, B, and C represent the super-group "A-B-C." Any group from outside A-B-C can define a route 
to A-B-C by using just 11:22.

Figure 4-2 Hierarchical network design using netprefixes and IISP routes

Routing Loops

Be careful not to create "ambiguous routes" (that is, routes defined by too few bytes). For instance, if a route is defined 
within the super-group A-B-C by specifying 11:22 as the destination, a routing loop is created. An additional byte is 
necessary to specify to which group (A, B, or C) the destination belongs.

11:22:33:00

11:22:33:01

11:22:44:01

11:22:44:00

11:22:55:01

11:22:55:00

11:22:33

11:22:44

11:22:55