bgp anycast

1. Experimental topology650) this.width=650; "src=" Http://s5.51cto.com/wyfs02/M02/77/71/wKiom1Zn4ITi1bjlAABRU7KI2x0837.png "title=" a1.png "alt=" Wkiom1zn4iti1bjlaabru7ki2x0837.png "/>2. Basic ConfigurationR1 ConfigurationInterface Loopback0IP Address 1.1.1.1 255.255.255.0Interface serial0/0IP address 13.1.1.1 255.255.255.0Interface fastethernet1/0IP address 124.1.1.1 255.255.255.0router OSPF 110Log-adjacency-changesNetwork 1.1.1.0 0.0.0.255 Area 0Network 124.1.1.0 0.0.0.255 Area 0Router

Topology experiment diagram: 650) this. width = 650; "src =" 51cto.com/uploads/allianz 111103/134944bq-0.jpg "title =" BGP backdoor routing "height =" 407 "width =" 606 "/> what is BGP backdoor routing? What is its function? Let's take a look at the brief Network Configuration: R1 S0/0: ip add 12.1.1.1 255.255.255.0 S0/1: ip add 13.1.1.1 255.255.255.0 L0: ip add 1.1.1.1 255.255.255.0 Router

Bgp dampeningTo enable BGP route dampening or change various BGP route dampening factors, use the bgp dampening command in address family or router configuration mode. to disable the function or restore the default values, use the no form of this command.Bgp dampening [half-life reuse suppress max-suppress-time] [route

Editor's note: I remember that at this time last year, many netizens also wrote to ask what is the difference between dual-line Dual IP address and dual-line Single IP address, however, with the media stream of IDC owners headed by the itworld IDC channel, most domestic users and webmasters have a clear understanding of Dual-line and related North-South communication technologies, now I have received a letter from some netizens, asking which BGP data

1 Some problems of restricting BGP expansibility BGP is the IP network Interconnection protocol applied to Internet, which provides a stable and secure routing protocol for the interconnection between operators, and has rich routing control mechanism. To better control the routing strategy, most operators now deploy BGP to backbone routers. With the continuous e

Perform the following experiment in the previous IGP. Lab requirements: 1. EBGP: R3---R2 R4---R3 R2---R1 2, IBGP: R2---R4 R4---R5 R2---R5 3. All BGP neighbor relationships are established using LO0 for update source (except for R2-R1 ). Use X. X. X. X as the router-id 4. R3 announcement lo20: 200.200.1.0/24. R5 should select R2. 5. R5 announcement lo20: 200.200.5.0/24 The destination network. 6. R1 announcement lo20: 200.200.4.0/24. This route can onl

R1and theR2There are two wires connected, usingBGP,R1There are two sets of routes,192.168.1.0/24and the192.168.2.0/24, when the two wires are in a state, the two groups of routed traffic are distributed across two lines, and when any one of them is broken, only192.168.1.0/24traffic. 650) this.width=650; "title=" Bgp.png "alt=" wkiom1t5lvyrikjlaabrkb2aogq286.jpg "src=" http://s3.51cto.com/wyfs02/M01 /5a/32/wkiom1t5lvyrikjlaabrkb2aogq286.jpg "/>Method 1"R1 Configuration"Interface Loopback0IP Addre

Design of the BGP Practice Policy Routing distribution requirements for the two RoutersR1 and R2 are connected by two lines. BGP is used. R1 has two groups of routes, 192.168.1.0/24 and 192.168.2.0/24. When both lines are connected, the traffic of the two groups of routes is distributed and balanced on the two lines. When any one of them is disconnected, only traffic of 192.168.1.0/24 is allowed. WKiom1T5Lv

BGP is a dynamic routing Discovery protocol between autonomous systems, and its basic function is to automatically exchange loop-free routing information between autonomous systems. As with OSPF and RIP protocols that operate within autonomous zones, BGP is a class of EGP (Edge Gateway Protocol) protocol, while OSPF and protocol. BGP was developed on the basis o

The BGP protocol runs on top of TCP and, as a result, it inherits all vulnerabilities of TCP connections. For example, in a BGP session, an attacker could impersonate a legitimate BGP neighbor, and then persuade the BGP router on the other end to share routing information to the attacker. This problem occurs when an at

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 the ISP deploy the BGP routing protocol rationa

BGP has 5 kinds of message 1.Open (Code 1): Used to establish a connection, including a version number (such as BGP3/BGP4) Hold time=180s (is a negotiated process, whichever is the smaller Hold time), Router-id (OSPF and BGP can be manually configured), as number ( The range is from 1~65535, wherein the 64512~65535 as number range is reserved for private); 2.KeepAlives (code 4): Cycle send to maintain con

Today, the BGP neighbor negotiation process found such a problem during the sorting process. BGP has 5 types of messages 1. open (code 1): used to establish a connection, including the version number (such as BGP3/BGP4) Hold Time = 180 s (it is a negotiation process, subject to a small Hold Time ), router-ID (OSPF and BGP can be manually configured), AS number (r

This blog article describes how to modify the next hop attribute value of NEXT_HOP through BGP, including modifying the next-hop attribute through next-hop-self, use route-map to modify the NEXT_HOP attribute values of BGP routes. 1. You can change the next-hop attribute through next-hop-self. When R5 is updated to the EBGP neighbor R2 BGP Route 5.5.5.0, N

, R1 in AS1, R2,R3,R4 in a large AS100 (R2,r3 in AS23, R4 in AS4), 5 in AS5.Standard Community Community Properties----A neighbor must open the transport Community propertiesR2#show Run | S Route-mapRoute-map AA Permit 10Match IP Address 1Set community Internet All-network can be passedRoute-map AA Permit 20Match IP Address 2Set community Local-as cannot outgoing small asRoute-map AA Permit 30Match IP Address 3Set community no-advertise cannot be passed to any neighborRoute-map AA Permit 40Match

BGP routing load balancing fault caseNetwork Architecture 1. Topology: the actual network structure is simplified considering the privacy of the company's network and a clearer description of fault phenomena. 2. network planning and data Configuration Overview: ◆ ASR9K establishes IBGP neighbor relationships with two n7ks Based on the interconnected addresses respectively; ◆ ASR9K is connected to the Cisco 752 architecture and 752 is used as the CDN s

BGP of the Community is a route-tagging method that ensures the continuity of route filtering and selection, and is transitive. Experimental topology:650) this.width=650; "style=" width:750px;height:320px; "title=" 1.png "alt=" Wkiom1r6iu3asudqaadaniujdek733.jpg "src= "Http://s3.51cto.com/wyfs02/M00/54/29/wKiom1R6iU3ASudQAADAniUjDek733.jpg" width= "615" height= "396"/>Lab Requirements:1. Set the 11.0/24 community Property value 100:11 on R1 and pass