D-Link DGS-3620-52P Web UI Reference Guide - Page 256

xStack® DGS-3620 Series Layer 3 Managed Stackable Gigabit Switch Web UI Reference Guide multihop sub AS. External peers interact with the confederation as if it is a single AS. Each sub AS is fully meshed within itself and it has connections to other sub ASes within the confederation. The next hop, Multi Exit Discriminator (MED), and local preference information is preserved throughout the confederation, allowing users to retain a single Interior Gateway Protocol (IGP) for all the autonomous systems. To view the following window, click L3 Features > BGP > BGP Confederation Settings, as shown below: Figure 5-1258 BGP Confederation Settings window The fields that can be configured are described below: Parameter Description Confederation Identifier (0-65535) Enter an Autonomous System number which is used to specify a BGP confederation. If it is set to zero, the BGP confederation number is deleted. By default, this setting is zero. Confederation Peer Action Use the drop-down menu to select Add or Delete. Confederation Peer AS List (1-65535) Enter one or multiple AS number partitions, each separated by a comma. These are the Autonomous System numbers for BGP peers that will belong to the confederation. Click the Apply button to accept the changes made. BGP AS Path Access Settings This window is used to configure an Autonomous System path access list. To view the following window, click L3 Features > BGP > BGP AS Path Access Settings, as shown below: Figure 5-1269 BGP AS Path Access Settings window The fields that can be configured are described below: Parameter Description List Name Enter an Autonomous System path access list name. Click the Add button to add a new entry based on the information entered. Click the Find button to locate a specific entry based on the information entered. 246