HP 6125XLG R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 36

Configuring RIPv2 route summarization Perform this task to summarize contiguous subnets into a summary network and sends the network to neighbors. The smallest metric among all summarized routes is used as the metric of the summary route. Enabling RIPv2 automatic route summarization Automatic summarization enables RIPv2 to generate a natural network for contiguous subnets. For example, suppose there are three subnet routes 10.1.1.0/24, 10.1.2.0/24, and 10.1.3.0/24. Automatic summarization automatically creates and advertises a summary route 10.0.0.0/8 instead of the more specific routes. To enable RIPv2 automatic route summarization: Step 1. Enter system view. 2. Enter RIP view. 3. (Optional.) Enable RIPv2 automatic route summarization. Command system-view rip [ process-id ] [ vpn-instance vpn-instance-name ] summary Remarks N/A N/A By default, RIPv2 automatic route summarization is enabled. If subnets in the routing table are not contiguous, disable automatic route summarization to advertise more specific routes. Advertising a summary route Perform this task to manually configure a summary route. For example, suppose contiguous subnets routes 10.1.1.0/24, 10.1.2.0/24, and 10.1.3.0/24 exist in the routing table. You can create a summary route 10.1.0.0/16 on VLAN-interface 1 to advertise the summary route instead of the more specific routes. To configure a summary route: Step Command 1. Enter system view. system-view 2. Enter RIP view. rip [ process-id ] [ vpn-instance vpn-instance-name ] 3. Disable RIPv2 automatic route summarization. undo summary 4. Return to system view. quit 5. Enter interface view. interface interface-type interface-number 6. Configure a summary route. rip summary-address ip-address { mask | mask-length } Remarks N/A N/A By default, RIPv2 automatic route summarization is enabled. N/A N/A By default, no summary route is configured. 25