bgp

will not be able to establish neighbor exit-address-family! address-family IPv4 VRF EIGRP100 network 12.1.1.0 0.0.0.255 no auto-summary autonomous-system exit-address-familyView Neighbor Relationships650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M00/70/C1/wKioL1W9o1-CjQC8AAIBwb-iTG8477.jpg "title=" Figure 3.png "alt=" Wkiol1w9o1-cjqc8aaibwb-itg8477.jpg "/>To configure redistribution:Configure the import and export of Route-target in the VRF, if it is multiple VRF, be sure to note the e

(OSPF), and Border Gateway protocol (BGP. Forward refers to the information transfer group along the best path for path searching. The router first searches in the routing table and determines whether the router knows how to send the group to the next site (router or host). If the router does not know how to send the group, the router usually discards the group; otherwise, the group is sent to the next site based on the corresponding table items in t

CNPC Wan meet management requirements. China Petroleum wide area network is divided into 13 as, of which the headquarters of the joint stock company, the headquarters of the Group Company, and the exploration Institute are divided into 1 as, as the core as; 12 subordinate regions are divided into 12, the region network as does not transfer domains from other as, and is only connected to the core. ● Border Gateway Protocol BGP and its planning Bord

to one region and does not provide direct support for nbma and p2mp interfaces. ISIS has better scalability: Isis can support multiple network layer protocols (OSPF only supports IP protocols); Isis can smoothly translate, split, and merge, without interrupting traffic; Isis is based on TLV, the Protocol itself is easy to expand. In recent years, the ISIS protocol has been widely used in backbone networks of major operators. When selecting the protocol, you need to consider what protocol is run

2.10What is the main difference between 1.bgp-4 and earlier versions?2. What are the two issues that CIDR solves?3. What is the difference between a category and an classless IP router?4. What is the difference between a category and an classless IP routing protocol?5. Please explain how the rollup hides the instability of the network.6. Explain how the rollup produces an asymmetric traffic model.7. Asymmetric flow is not expected?8. What is NAP?9. Wh

The commands involved in this document are: Neighbor [Ip-address|peer-group-name] advertise-map [route-map-name1] non-exist-map [route-map-name2] Neighbor [Ip-address|peer-group-name] Default-originate Neighbor [ip-address|peer-group-name] default-originate route-map xxx 3-6-1 neighbor [Ip-address|peer-group-name] advertise-map [route-map-name1] non-exist-map [route-map-name2] This command is, in fact, the conditional route we often say. If the mandatory translation into Chinese, such as t

Configuration: Interface Loopback1 Ip address 4.4.1.4 255.255.255.0 ! Interface Loopback2 Ip address 4.4.2.4 255.255.255.0 ! Interface Loopback3 Ip address 4.4.3.4 255.255.255.0 ! Interface Serial1/0 Ip address 10.0.3.2 255.255.255.0 Serial restart-delay 0 ! Router ospf 1 Log-adjacency-changes Network 4.4.1.0 0.0.0.255 area 2 Network 4.4.2.0 0.0.0.255 area 2 Network 4.4.3.0 0.0.0.255 area 2 Network 10.0.3.0 0.0.0.255 area 2 ! At the end of the preceding command, configure the OSPF route tables

unified routing policy. The routing protocol used in the autonomous region is called the internal gateway protocol, which is commonly used with RIP and OSPF. The external gateway protocol is mainly used for routing selection between multiple autonomous regions, common are BGP and BGP-4. The following is a brief introduction. RIP route protocol The RIP Protocol was originally designed for the Xerox parc co

LibraryRfc1696 modem MIB defined by smiv2Rfc1713 DNS debugging toolRfc1715 Address allocation efficiency ratio HRfc1723 route information protocol (version 2)Rfc1724 rip version 2 Management System Library (MIB) ExtensionRfc1738 uniform resource locator (URL)Rfc1752 recommends next-generation IP protocolRfc1769 Simple Network Time Protocol (SNTP)Rfc1771 Border Gateway Protocol Version 4 (BGP-4)Rfc1776 address is informationRfc1777 Lightweight Directo

G0/0/0/1Rp/0/0/cpu0:test (config-if) #shutRp/0/0/cpu0:test (config-if) #commit confirmed automatically rolls back to the previous state after---30s, i.e. the interface automatically turns onSH Run int G0/0/0/1Interface GIGABITETHERNET0/0/0/1IPv4 address 13.1.1.1 255.255.255.0ShutdownRp/0/0/cpu0:nov 09:43:19.754:ifmgr[225]:%pkt_infra-link-3-updown:interface GIGABITETHERNET0/0/0/1, changed state To up//readers can see that the interface is automatically opened after 30s, which can greatly improve

The loop port has a very wide application in practice, and this article is about the use of loopback mouth. BGP Update-source Because the loopback mouth as long as the router is still alive, it will always remain active, so as long as the BGP peer loopback to meet the route can be reached, BGP can be established, in general,

of RIP, IGRP, and VPN are all infinite. They do not enter the route selection table unless the default value is changed; the default IS-IS metric value IS 0, but it can enter the routing table. The default OSPF metric IS two types of LSA value 20, and the routing from bgp is 1; BGP sets MED to the measurement value of IGP. Www.2cto.com 4, when different protocols and different paths exist, use the Manageme

gateway protocol EGP based on whether they are used in an autonomous domain ). The Autonomous Region refers to a network with a unified management organization and a unified routing policy. The routing protocol used in the autonomous region is called the internal gateway protocol, which is commonly used with RIP and OSPF. The external gateway protocol is mainly used for routing selection between multiple autonomous regions, common are BGP and

route according to the corresponding static route forwarding group. Otherwise, the vro searches for the dynamic route. Dynamic Routing Protocols are divided into internal gateway protocol IGP and external gateway protocol EGP based on whether they are used in an autonomous domain ). The Autonomous Region refers to a network with a unified management organization and a unified routing policy. The routing protocol used in the autonomous region is called the internal gateway protocol, which is com

for routing selection between multiple autonomous regions, common are BGP and BGP-4. The following is a brief introduction.3.1 RIP route protocol The RIP Protocol was originally designed for the Xerox parc common protocol of the Xerox network system and is a common Routing Protocol in the Internet. RIP uses the distance vector algorithm, that is, the router selects routes based on distance, which is also c

gets a new IP packet carrying the network information of the target service provider, rather than the IP address of the end user. This IP packet is removed from the packet when it reaches the target service provider. LISP can be shared with the Border Gateway Protocol (BGP), which is the main communication channel between the edge and the core router. Cisco researcher Dino Farinacci believes that the problem we face is that IP addresses are allocated

The importance of vro configuration is self-evident. Here we mainly analyze the Cisco router configuration statements in detail, and share them with you here, hoping to help you. Introduction to Cisco router configuration Cisco ios operating environment. ROM monitor> Failure of password recovery BootROM router (boot)> Flash image upgrade Cisco IOS router> Normal operation Command Modes Command mode. User EXEC Router> user access Privileged EXEC Router # System adminstration

(1) features of Route Maps: Route Maps is similar to access lists. The difference is that Route Maps can change some attributes of Packets/Routes. Purpose: Route Maps is mainly used for Redistribution, Policy Routing, and BGP implementation. Implementation: Policy Routing sends Packets to Route Maps to implement Policy Route forwarding. Redistribution sends Routes to Route Maps to filter Route entries. Configuration instructions: If the Action and Seq

. The main values are bgp, eqp, igrp, isis, ospf, static [ip], connected, and rip. ◎ Process-id: indicates the OSPF process ID. ◎ Metric: it is an optional parameter used to specify the metric value of the redistribution route. The default measurement value is 0. 7. Why is it important to determine the adjacent router? Determining the adjacent router in a small network is not a major problem. When a router fails, other routers can converge within an

Original address: http://www.cnblogs.com/xitang/p/3575255.htmlBelieve that a lot of friends will be some of these nouns around some of the head, many friends think that smart DNS with two-line acceleration, CDN acceleration is similar technology. In fact, although their purpose is one: to allow users to access the site faster. But the principles of their application are vastly different.It must be clear to everyone that these are more common ways to host acceleration. So the text mainly introduc