bgp

1. The router is also called the IP gateway, and the Gateway Protocol is the protocol for exchanging routing information between gateways.2. Autonomous systems:(1) Autonomous system is connected by the homogeneous gateway of the Internet, autonomous system within the gateway to perform internal Gateway Protocol (IGP), mutual exchange of routing information(2) The IGP is dedicated within the autonomous system, serves for a particular application, is not valid outside the autonomous system;(3) An

, R1 can still manage the switch, view the R1 configuration does not have to go to the switch to manage the address of the route, just configured on the switch two metric values different default routes, so that can not meet the problem Please. My understanding: ① two static routes on the switch IP Route 10.50.13.80 255.255.255.240 10.10.45.4 IP Route 10.50.13.128 255.255.255.240 10.10.45.5 ② also configures two static routes on R1, metric values are different, and configuration track Trac

implementation. Ipsesc: A point-to-point cryptographic communication protocol that is typically used in a Ovrelay network's data channel. Vxlan: A solution proposed jointly by VMware, Cisco, Redhat, and so on, the solution is to solve the problem of the number of VLAN supported virtual networks (4096). Because every tenant in the public cloud has a different vpc,4096 is obviously not enough. With the Vxlan, it can support 16 million virtual networks, and basically the public cloud is sufficie

When the export router is upgraded, the troubleshooting steps for the export traffic anomaly caused by routing turbulence are as follows:Network environmentAn operator of the export router ne40e version upgrade, after the upgrade, the route learning normal, but from the network management shows that the flow of exports is much lower than the usual period of traffic, and traffic growth is slow, after a long time to reach peacetime flow.Fault analysisAs a result of the NE40E upgrade process to hav

Data Packets transmitted in the MPLS network can have multiple labels. Generally, there is only one label for data transmission in the MPLS network, and there are two labels in the mpls vpn. This is the label stack, they are called the top label and the bottom stack label respectively. The inner layer label should be the bottom stack label, and the outer layer label is the top label. In any case, when packets are transmitted in the MPLS network, A vro forwards data only by looking at one label,

network.RT1:Int s0/1Mpls ipInt s0/2Mpls ipRT2 S0/0, F1/0, S0/1, RT3 S0/0, F1/0, S0/1, RT4, RT5 S0/1 do the above ConfigurationIBGP Configuration:RT4:Router bgp 65000No synchronizationNetwork 172.17.4.0 mask 255.255.255.0Neighbor 5.5.5 remote-as 65000Neighbor 5.5.5.5 update-source Loopback0Neighbor 5.5.5.5 next-hop-selfNo auto-summaryRT5:Router bgp 65000No synchronizationNetwork 172.17.5.0 mask 255.255.255.

usually has its own independent IP address space, exchange, or routing implementation. Ipsesc: A point-to-point encrypted communication protocol, typically used in the data channel of the overlay network. VXLAN: This solution, proposed by a consortium of VMware, Cisco, Redhat, and so on, is the most important solution to solve the problem that VLAN supports too few virtual networks (4096). Because each tenant in the public cloud has a different vpc,4096 that is obviously not enough. With Vx

protocols are divided into the Internal Gateway Protocol (IGP) and the 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 adopted in the autonomous region is called the internal gateway protocol, which is commonly used by RIP and OSPF; the external gateway protocol is mainly used for routing selection between multiple autonomous

255.255.255.0 !! Router ospf 200 vrf r6in log-adjacency-changes capability vrf-lite redistribute bgp 100 subnets network 192.168.100.0 0.0.255 area 0! Router ospf 300 vrf r6out log-adjacency-changes capability vrf-lite redistribute bgp 100 subnets network 192.168.200.0 0.0.255 area 0! Www.2cto.com router ospf 100 router-id 6.6.6.6 log-adjacency-changes network 6.6.6.6 0.0.0.0 area 0 network 192.168.56.0 0.

fno arp fno frame inverframe map ip 10.1.5.1 501 bframe map ip 10.1.5.2 502 bno shutint s2/1ip ad 10.1.6.5 running fno arp fno frame inverframe map ip 10.1.6.6 516 bno shutrouter ospf 255.255.255.255.10.1.5.5 0.0.0.0 0net 5.5.5 0.0.0.0 a 0 redistribute image100 subnets metric 100 metric-type 1 exitrouter VPN 100no auto scaling net 10.1.6.5 limit ospf 1 metric 10000 100 255 1 1500end R6conf tint l 0ip ad 6.6.6.6 limit s2/ 1ip ad 10.1.6.6 255.255.255.0encap fno arp fno frame inveframe map ip 10.1

the table, however, the routing selection protocol only notifies the network that has been learned through the process. When routing selection processes do not share information about the network system, it is called night routing (ships in night, SIN )｡ 3. Default seed measurement values. The default seed measurement values 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 ent

650) this. width = 650; "style =" border-bottom: 0px; border-left: 0px; border-top: 0px; border-right: 0px "title =" image "border =" 0 "alt =" image "src =" http://www.bkjia.com/uploads/allimg/131227/031R16441-0.png "" 835 "height =" 219 "/> How does one achieve load balancing on multiple links? Two methods: 1. Build an EBGP neighbor using the loopback port and use EBGP multi-hop 2. EBGP multipath The following two methods are discussed: 1. Build an EBGP neighbor using the loopback port

, however, the routing selection protocol only notifies the network that has been learned through the process. When routing selection processes do not share information about the network system, it is called night routing (ships in night, SIN )｡ 3. Default seed measurement values. The default seed measurement values 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 rou

sender-host 11.1.1.1 44.1.1.1 UDP 60000 50000 20 2000ip rsvp reservation-host 11.1.1.3 44.1.1.2 UDP 60000 50000 ff rate 20 2000 \ note that the original object information must be the same Router (config) # ip nbar pdlm-file Processing Protocol Discovery: router (config-if) # ip nbar protocol-discoveryshow ip nbar protocol-discoveryip nbar port-map protocol [tcp | udp] new-port [new-port...] 8-QoS PreclassifyQoS for VPNs (QoS preclassify) is a Cisco IOS feature that allows packets to be cl

s3560 (config-router) # network 192.168.1.0s3560 (config-router) # network 192.168.3.0s3560 (config-router) # version 2s3560 (config-router) # % link-5-changed: interface fastethernet0/20, changed state to up % LINEPROTO-5-UPDOWN: Line protocol on interface fastethernet0/20, changed state to up % LINEPROTO-5-UPDOWN: line protocol on interface vlan20, changed state to ups3560 (config-router) # ends3560 # % SYS-5-CONFIG_ I: configured from console by lesles3560 # Show IP Route codes: C-connected,

backbone routers. Dynamic routing Protocol said that the dynamic routing protocol should be introduced briefly before routing redistribution. Under normal circumstances, routers in various routing protocols such as OSPF, Is-is, BGP, respectively, the calculation and maintenance of their own routing table, all the protocol generated routing entries eventually aggregated into a routing management module. For a given destination IP address, various

Internet domain 332.3.1 Routing Information Protocol (RIP) 342.3.2 Open Shortest Path First Protocol (OSPF) 402.4 Internet inter-domain Routing protocol BGP542.4.1 Autonomous System-level network topology 552.4.2 Inter-autonomous system connection Relationship 572.4.3 Domestic ISP Interconnection situation 612.4.4 Border Gateway Protocol (BGP) Introduction 632.4.5 Policy Routing in BGP 712.4.6

the peer end To save Address Resources, the address of the loopback interface is usually specified as a 32-bit mask. 2. Use this interface address as the router ID of the Dynamic Routing Protocol OSPF and BGP During the operation of the Dynamic Routing Protocol OSPF and BGP, you must specify a router ID for the Protocol. The router must be unique in the autonomous system. Because the router ID is A 32

: C-connected, S-static, I-IGRP, R-RIP, M-mobile, B-BGP D-OSPF, EX-VPN external, O-OSPF, IA-OSPF inter area N1-ospf nssa external type 1, N2-ospf nssa external type 2 E1-OSPF external type 1, E2-OSPF external type 2, E-EGP I-IS, L1-IS level-1, L2-IS level-2, ia-IS inter area *-Candidate default, U-per-user static route, o-ODR P-periodic downloaded static route Gateway of last resort is not set 1.0.0.0/24 is subnetted, 2 subnets C 1.1.1.0

resources. Use this interface address as the router id of the Dynamic Routing Protocol OSPF and BGP. During the operation of the Dynamic Routing Protocol OSPF and BGP, a Router id must be specified for the Protocol, which is the unique identifier of the Huawei Router and must be unique in the entire autonomous system. The router id is a 32-bit unsigned integer, which is very similar to the IP address. In a