D-Link DGS-3630-52TC Web UI Reference Guide 2 - Page 351

DGS-3630 Series Layer 3 Stackable Managed Switch Web UI Reference Guide BGP Route Preference Settings This window is used to display and configure the BGP route preference settings. To view the following window, click L3 Features > BGP > BGP Route Preference Settings, as shown below: Figure 6-176 BGP Route Preference Settings Window The fields that can be configured are described below: Parameter Address Family Description Select the address family that will be used here. Options to choose from are: • IPv4 Unicast - Specifies to use the IPv4 unicast address family in this configuration. • IPv4 VRF - Specifies to use a VRF instance in this configuration. Enter the name of the VRF instance in the space provided or click the Please Select button to select a pre-configured VRF instance that will be used here. This name can be up to 12 characters long. • IPv6 Unicast - Specifies to use the IPv6 unicast address family in this configuration. Distance EGBP Distance IBGP Enter the distance eBGP route preference value here. The range is from 1 to 255 for an IPv4 address family and 1 to 254 for IPv6 address family. Enter the distance iBGP route preference value here. The range is from 1 to 255 for an IPv4 address family and 1 to 254 for IPv6 address family. Click the Apply button to accept the changes made. After clicking the Please Select button, the following page will appear. Figure 6-177 BGP Route Preference Settings (Please Select) Window Select the VRF entry and click the OK button to use the selected VRF entry. Enter a page number and click the Go button to navigate to a specific page when multiple pages exist. BGP Dampening Settings This window is used to display and configure the BGP dampening settings. The purpose of this feature is to eliminate the advertising of unstable routes and thus to avoid unstable networks caused by flapping routes. 339