bgp routing table

-neighbor-changes neighbor 3.3.3.3.3 remote-as 234 neighbor 3.3.3.3 upda Te-source Loopback0 neighbor 3.3.3.3 next-hop-self neighbor 192.1.45.5 remote-as 500 R5 configuration router bgp 500 no synchronization bgp router-id 5.5.5 bgp cluster-id 3221302533 bgp log-neighbor- changes network 5.5.5.0 mask 255.255.255.0 neig

, 2000, and 5 AS 1.1.1.0/12." The most important thing about BGP is that AS-Path itself uses a mechanism to prevent product routing loops, and the router does not import any routes already included in the AS-Path attribute. For a vro, if you want to import a route and then tell it to a partner in the peer-to-peer relationship, you must before declaring this route, first, append your AS number to this AS-Pat

16 bits starting from the left end of the address. The introduction of CIDR simplifies Routes Aggregation ), route aggregation is actually a process of combining several different routes, so that the route entry is changed from advertised to advertised, reducing the route table size ｡ When a route is updated, the BGP routing protocol only sends updated routes, w

respectively, continue to the next step. 8: BGP preferentially selects the path with the lowest measurement value for the next hop IGP. (Both EBGPpeer and IBGPpeer, or both EBGP and IBGP are compared) 9: When the eight routing principles listed above fail to select the optimal route, maximum-paths [ibgp] To achieve load balancing, routes received by both IBGP and EBGP must be exactly the same as-path, and

ensure that routing information is properly broadcast to each router. According to this principle, the total number of I-BGP sessions in an autonomous domain is NX (N-1)/2 (n is the number of routers running I-BGP), and when n grows, the number is staggering: 100 routers, the number of sessions is 4950. This is a huge burden for network devices, and it will comp

With the development of the Internet in China, the connection between ISP service providers and Internet is also changing. On a network connection, from a single connection to the Internet via multiple telecommunications companies, in terms of routing protocols used, from the use of static routing protocols to the use of BGP (Border Gateway Protocol). How does th

up with a solution, that is, to use the "routing policy" to increase the management distance of Route entries sent by EBGP 99.99.99.0, alternatively, the Management Distance from the 99.99.99.0/24 route entries received by the Network in the same way is smaller than that of the EBGP 20. The routing policy is to make a routing policy based on the content of the r

Dynamic routing protocols are divided into Internal Gateway Protocol (IGP) and External Gateway Protocol (EGP), depending on whether they are used within an autonomous domain. The autonomous domain here refers to a network with a unified management authority and a unified routing policy. The routing protocol adopted within the autonomous domain is called the Inte

　　 1. Introduction BGP is a routing protocol between autonomous systems. The Network accessibility information exchanged by BGP provides sufficient information to detect routing loops and make decisions based on performance precedence and policy constraints. In particular, BGP