Nortel Web OS 10.0, Application Manual

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Web OS 10.0 Application Guide
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Figures
212777-A, February 2002
Figure 6-1: Traditional Versus SLB Network Configurations 119
Figure 6-2: Web Hosting Configuration Without SLB 121
Figure 6-3: Web Hosting with SLB Solutions 121
Figure 6-4: SLB Client/Server Traffic Routing 122
Figure 6-5: Example Network for Client/Server Port Configuration 123
Figure 6-6: Basic Virtual Port to Real Port Mapping Configuration 140
Figure 6-7: Direct Server Return 143
Figure 6-8: Mapped and Nonmapped Server Access 144
Figure 6-9: DoS SYN Attacks without Delayed Binding 146
Figure 6-10: Repelling DoS SYN Attacks With Delayed Binding 147
Figure 6-11: Layer 4 DNS Load Balancing 151
Figure 7-1: Assigning Filters According to Range of Coverage 172
Figure 7-2: Assigning Filters to Overlapping Ranges 172
Figure 7-3: Assigning a Default Filter 173
Figure 7-4: VLAN-based Filtering 174
Figure 7-5: Configuring Clients with Different Rates 180
Figure 7-6: Limiting User Access to Server 183
Figure 7-7: Security Topology Example 185
Figure 7-8: Static Network Address Translation 192
Figure 7-9: Dynamic Network Address Translation 193
Figure 7-10: Active FTP for Dynamic NAT 195
Figure 7-11: TCP ACK Matching Network 197
Figure 8-1: Traditional Network Without Web Cache Redirection 204
Figure 8-2: Network with Web Cache Redirection 205
Figure 11-1: Example 1: VRRP Router 250
Figure 11-2: Example 2: VRRP Router 252
Figure 11-3: A Non-VRRP, Hot-Standby Configuration 253
Figure 11-4: Active-Standby Redundancy 254
Figure 11-5: Active-Active Redundancy 255
Figure 11-6: Hot-Standby Redundancy 256
Figure 11-7: Active-Active High Availability 260
Figure 11-8: Active-Standby High-Availability Configuration 263
Figure 11-9: Active-Active High-Availability Configuration 265
Figure 11-10: Hot-Standby Configuration 275
Figure 11-11: Loops in Active-Active Configuration 278
Figure 11-12: Cross-Redundancy Creates Loops, But STP Resolves Them 279
Figure 11-13: Using VLANs to Create Non-Looping Topologies 279
Figure 11-14: Stateful Failover Example when the Master Switch Fails 284