
117356-B Rev. 00
xvii
Figures
Figure 1-1. Network and Host Portions of IP Addresses ....................................................... 1-3
Figure 1-2. Internet Segmented into Three Autonomous Systems ......................................... 1-9
Figure 1-3. IP Routing Table ................................................................................................ 1-15
Figure 1-4. Accept and Announce Policies .......................................................................... 1-16
Figure 4-1. IP Interface .........................................................................................................4-25
Figure 4-2. Multinet Configuration ...................................................................................... 4-30
Figure 4-3. IP Routers Source Routing Across a Token Ring Network ............................... 4-44
Figure 5-1. ARP Example ...................................................................................................... 5-2
Figure 5-2. Proxy ARP Example ............................................................................................ 5-9
Figure 7-1. OSPF Areas .......................................................................................................... 7-5
Figure 7-2. OSPF ASE Routes ............................................................................................. 7-16
Figure 7-3. AS External Route Tag ...................................................................................... 7-19
Figure 7-4. Point-to-Multipoint Topology ............................................................................ 7-33
Figure 7-5. Example of Using Configurable Cost Metrics ................................................... 7-42
Figure 7-6. Area Border Router ............................................................................................ 7-54
Figure 7-7. Virtual Link and Transit Area ............................................................................ 7-56
Figure 8-1. BGP Connecting Autonomous Systems Running OSPF ..................................... 8-2
Figure 8-2. Transit Autonomous System (AS) ....................................................................... 8-4
Figure 8-3. IBGP Route Server .............................................................................................. 8-6
Figure 8-4. Server Cluster with a Tree Topology ................................................................... 8-7
Figure 8-5. Server Cluster with a Full-Mesh Topology .......................................................... 8-8
Figure 8-6. Multiple IBGP Route Server Clusters in a Tree ................................................ 8-10
Figure 8-7. Redundant Client-Server Connections ................................................................8-11
Figure 8-8. Establishing and Confirming a Connection Between BGP Peers ...................... 8-38
Figure 8-9. BGP over an Unnumbered Point-to-Point Link ................................................. 8-58
Figure 9-1. EGP Connection Between Two Autonomous Systems Running RIP ................. 9-2
Figure 10-1. RIPSO Security Label ........................................................................................ 10-2
Figure 10-2. RIPSO Example ............................................................................................... 10-17
Figure 11-1. Blacker Front-End Network Configuration ........................................................11-2
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