bgp routing protocol

The Border Gateway Protocol, also known as BGP, is mainly used to connect to the routing protocol of independent systems on the Internet, it is an enhanced, comprehensive, and scalable protocol developed by the Internet Engineering Task Group. 1. routes include two basic act

This article describes the basic working principles of routers in TCP/IP networks, introduces several functions of IP routers, and provides Static Routing and dynamic routing protocols, as well as the concept of the internal gateway protocol and the external gateway protocol, and briefly introduces the most common RIP,

Routing protocol is divided into static routing protocol and dynamic routing protocol. There are many kinds of dynamic routing protocols, such as RIP, OSPF, EIGRP, and so on.1. RIP (

6th. TCP/IP routing protocol fault handlingFirst, the default gatewayWhen the destination address of the package is not in the router's routing table, such as when the router is configured with a default gateway, it is forwarded to the default gateway or discarded.show IP route; View the default gateway for Cisco routersSecond, static and dynamic routingThird, pr

to connect other lower-layer areas Non-trunk zone: The vro inside the vro only knows the complete network topology of the local region, but does not know the network topology of other regions. At least one regional border router is required Five grouping types: Greeting (Hello) Group Database description Group Link State request Group Link State update group, which uses the flooding method to update the link status of the entire netwo

region is composed of one or more subnets connected to each other and is connected to the main region. In addition, the OSPF protocol supports a variable length subnet latency (vlsm) that provides network address space conversion and bandwidth-based computing. External Routing Protocol The external routing

relationship, and BGP uses TCP to establish the adjacent relationship.Show commands related to BGP:Show ip bgp; displays the Routes learned by BGPShow ip bgp network; displays the BGP information of a specific networkShow IP neighbors; displays BGP neighbor InformationShow

The use of routes greatly expands the performance of the network. Next, we will analyze some characteristics of the IBGP routing protocol. Through the introduction of this article, we can understand the routing features in this regard. With the development of the network, ISP needs to connect to the INTERNET through multiple lines through different network provid

CIDR (classless Inter-Domain Routing) address Resolution. This means that this Protocol is only a domain-like protocol. You cannot divide the 24-mask network into smaller units, r12001 also uses broadcast to send messages. This means that the host cannot ignore RIP broadcasts. Remember that each host in the broadcast domain will receive an interruption each time

IP address routing and dynamic routing protocol (6) Routing is one of the most important functions of IP addresses. The selected data packets can be generated by a local host or another host. In one case, the host must be configured as a router. Otherwise, the datagram obtained through the network interface will be dis

:24.1.1.2 Relay IP out-interface:gigabitethernet0/0/0 Original nexthop:2.2. 2.2 Qos information:0x0 As-path, Origin IGP, MED 0, Localpref, Pref-val 0, valid, internal, pre 255, IGP cost 1, Not preferred for PreVal (R4 goes to 1.1.1.0/24 route, does not walk R2 2.2.2.2 because the preference value is not optimal) not advertised to any peer yet Experiment two: Let R4 choose R3 as the next hop by protocol preference, and go to 10.1.1.0/24 and 100.1.1.0

For a self-organizing network, the routing protocol of the eighth version is a key and difficult point. So today we will discuss some of the issues of this agreement, and here we will give you a closer look. The content of this article is as follows: Research on the routing black hole attack problem of the routing

route table of "inter-network. The routing action includes two basic items: path finding and forwarding. The routing algorithm is used to determine the optimal path to the destination. Because different routing protocols and routing algorithms are involved, it is relatively complicated. To determine the optimal route,

We all know that the function of the router is primarily addressing and forwarding addressing is the routing algorithm that is implemented by routing algorithms to add the different information collected to the routing table, and forwarding is through routing tables for mutual communication between routers updating and

Many people may not know much about the OSPF routing protocol. Here we will mainly explain the detailed introduction of the OSPF routing protocol. Here we will share it with you and hope it will be useful to you. Link State packet type in the region: 1. Router LSA It is generated by all vrouters in the region and can o

Previous: static Router DynamicRouting ProtocolFeatures 1) the dynamic routing protocol can automatically update its route table and send updated messages to other dynamic routing protocols it knows. 2) the purpose is to manage the work of the network administrator. 3) There must be a routing

Many people may not have a special understanding of the routing protocol of the sensor network. The following describes the routing protocol of the sensor network. With the development of communication, computer, network, information processing, sensing, and other technologies, we have been able to produce intelligent

In summary, there are six solutions to the routing loop problem in distance vector routing protocol: 1. Define the maximum value; 2. horizontal segmentation technology; 3. Route poisoning; 4. Reverse route poisoning; 5. Control the update time; 6. Trigger the update. The following describes the implementation principles of various solutions: 1. Define the

Gateway Protocol (IGP) and the external Gateway Protocol (BGP) based on whether it is used in an autonomous system. Common internal gateway protocols include RIP and OSPF, external gateway protocol has BGP, BGP-4, here mainly tal

basic items: path finding and forwarding. The routing algorithm is used to determine the optimal path to the destination. Because different routing protocols and routing algorithms are involved, it is relatively complicated. To determine the optimal route, the routing algorithm must start and maintain the route table