basic configuration
Start BGP
- [Quidway] BGP-AS Number
Configuration BGP peer
- [Quidway-BGP] Use the peer-address Use the peer AS-AS-Number Number
BGP route injection
-network IP-address [mask mask]
-import-route Protocol [Med Med]
Configuring BGP peers version
- [Quidway-bgp] peer peer -address version version-number
Configuring BGP timers
- [Quidway-bgp] timers keepalive -interval holdtime-interval
configured to send update messages peer interval
- [Quidway- BGP] the peer the peer-address route-Update-interval The
seconds The
Process
BGP aggregation
BGP supports manual aggregation route. Manual aggregation aggregate polymerization of the local BGP routes.
BGP reflection
To avoid this in the AS path through the bad sentences, not advertise internal BGP BGP peer IBGP peer through other known routes.
Therefore, maintaining a complete closure in the AS IBGP network is very important, that is to say, each AS BGP BGP router must establish a dialogue with all other routers in AS. In certain such a network, the network due to the very large internal BGP (internal dialogue each router has more than 100), the establishment of full engagement with the pin CAPE also great. This requires the use of new technologies. This technique requires the internal BGP peer configured as a route reflector, on the other sentence part unnecessary full-mesh connected peers, and only exit route and establishes IBGP session, only by the route reflector can learn routes
Route reflectors shown below: Router A receives an update and passes it to the EBGP peer RouterB.
It RouterB configured to route reflector which has two clients: Router A and RouterC. We will update RouterB RouterA reflected from the client to the client RouterC. In this case the mud, the need to establish a session between Router A and RouterC, as will BGP route reflector RouterB
BGP Union
Union is another method of closing the AS IBGP mesh surge process, an autonomous system, it is divided into several sub-ASs, and each sub-inside IBGP peers are fully connected, and with the other sub confederation of establish connection. In the sub-AS and the like between the body of the EBGP sessions, but they can exchange routing information such as peer as IBGP. Important information All routing information in the next hop, MED values and local priority, etc. are not lost when crossing the sub-autonomous systems.
Reproduced in: https: //blog.51cto.com/14216983/2410771