A SERVICE OF

logo

3Com Switch 8800 Configuration Guide Chapter 20 Integrated IS-IS Configuration
20-3
ES
Routing Domain Boundary
IS-IS Area
End system
Subnetwork Path
Level 1 IS-IS Routing
Level 2 IS-IS Routing
Interdomain Routing
Intermediate system
ES
IS
Area 1 Area 2
Area 3
Routing Domain 1
Routing Domain 2
ES
ES
IS
IS
IS
IS IS
IS
IS
ES
ES
ES
ES ES
IS
IS
Figure 20-1 IS-IS topology