Configuring Basic BGP Functions
Before building a BGP network, you must configure basic BGP functions.
Usage Scenario
BGP can be configured on a network to implement communication among ASs. To build a BGP network, configure basic BGP functions, including the following steps:
Start a BGP process. This step is a prerequisite for configuring basic BGP functions.
Establish BGP peer relationships. Devices can exchange BGP routing information only after peer relationships are established.
Import routes. BGP itself cannot discover routes. Instead, it imports routes discovered by other protocols to implement communication between ASs.
The commands in the BGP-IPv4 unicast address family view can be run in the BGP view. These commands are described in the BGP-IPv4 unicast address family view in configuration files.
- Starting a BGP Process
- Starting a BGP process is a prerequisite for configuring BGP functions. When starting a BGP process on a device, you need to specify the number of the AS to which the device belongs.
- Configuring a BGP Peer
- Devices can exchange BGP routing information only after the BGP peer relationship is established.
- Configuring BGP to Import Routes
- BGP can import the routes from other routing protocols. When BGP needs to import routes from a dynamic routing protocol, you need to specify the process ID of the protocol.
- Verifying the Basic BGP Configuration
- After configuring the basic BGP functions, verify BGP peer information.