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Level 2 routers do not look at an area’s internal structure, but simply route toward an area based on the area address. It is common for a level 2 router to also be a level 1 router in a particular area; these routers are sometimes referred to as level 1-2 routers. See Figure 18.
| Copyright © 2008, Juniper Networks, Inc. All rights reserved. Trademark Notice. | |