bgp multihoming

agreement at the core, which at the border. 4) Determine the direction of routing redistribution. The following command can be used to redistribute routing updates (this example is for OSPF): Router (config-router) #redistribute Protocol[process-id] [metric metric-value] [metric-type type-value] [subnets] In this command: Protocol: Indicates the source routing protocol to which the router will route the redistribution. The main values are: BGP,

boundary. 4) determines the route redistribution direction. You can use the following command to reallocate route updates (this example is for OSPF ): Router (config-router) # redistribute protocol [process-id] [metric-value] [metric-type-value] [subnets] In this command: ◎ Protocol: Specifies the source route protocol for Route redistribution on the vro. The main values are bgp, eqp, igrp, isis, ospf, static [ip], connected, and rip. ◎ Process-id: i

for OSPF ): Router (config-router) # redistribute protocol [process-id] [metric-value] [metric-type-value] [subnets] In this command: Protocol: Specifies the source route protocol for Route redistribution on the vro. The main values are bgp, eqp, igrp, isis, ospf, static [ip], connected, and rip. Process-id: the ID of the OSPF process. Metric: an optional parameter used to specify the metric value of the route for redistribution. The default measurem

is at the boundary.4) determines the route redistribution direction.You can use the following command to reallocate route updates (this example is for OSPF ):Router (config-router) # redistribute protocol [process-id] [metric-value] [metric-type-value] [subnets]In this command:◎ Protocol: Specifies the source route protocol for Route redistribution on the vro.The main values are bgp, eqp, igrp, isis, ospf, static [ip], connected, and rip.◎ Process-id

route redistribution direction.You can use the following command to reallocate route updates (this example is for OSPF ):Router (config-router) # redistribute protocol [process-id] [metric-value] [metric-type-value] [subnets]In this command:◎ Protocol: Specifies the source route protocol for Route redistribution on the vro.The main values are bgp, eqp, igrp, isis, ospf, static [ip], connected, and rip.◎ Process-id: indicates the OSPF process ID.◎ Met

flood Debug ip ospf lsa-generation Debug ip ospf packet Debug ip ospf retransmission Debug ip ospf spf Debug ip ospf tree Common OSPF faults: Each OSPF area cannot exceed 100 routers, and the entire network cannot exceed 700 routers. The wildcard mask is improperly configured; VII. Handling BGP faults The key configuration of BGP (including IBGP and EBGP) is the neighbor relationship, and

despise me! ^. ^ First, define a simple object: The Code is as follows: Function objDIV (){This. bgp;This. infop;} First, we want to bring up a mask layer. I will name it openBackDiv (); The Code is as follows: Function openBackDiv (txbp ){Txbp. bgp = document. createElement ("p ");Txbp. bgp. setAttribute ("id", "overDiv ");Txbp.

direction. You can use the following command to reallocate route updates (this example is for OSPF ): Router (config-router) # redistribute protocol [process-id] [metric-value] [metric-type-value] [subnets] In this command: ◎ Protocol: Specifies the source route protocol for Route redistribution on the vro. 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

the core and which is at the boundary.4) determines the route redistribution direction.You can use the following command to reallocate route updates (this example is for OSPF ):Router (config-router) # redistribute protocol [process-id] [metric-value] [metric-type-value] [subnets]In this command:◎ Protocol: Specifies the source route protocol for Route redistribution on the vro.The main values are bgp, eqp, igrp, isis, ospf, static [ip], connected, a

the core and which is at the boundary.4) determines the route redistribution direction.You can use the following command to reallocate route updates (this example is for OSPF ):Router (config-router) # redistribute Protocol [process-id] [metric-value] [metric-type-value] [subnets]In this command:◎ Protocol: Specifies the source route protocol for Route redistribution on the vro.The main values are BGP, eqp, IGRP, Isis, OSPF, static [IP], connected, a

redistribution? Before route redistribution, you must first: 1) decide where to add a new protocol. 2) determine the border router (ASBR) of the autonomous system ). 3) decide which protocol is at the core and which is at the boundary. 4) determines the route redistribution direction. You can use the following command to reallocate route updates (this example is for OSPF ): Router (config-router) # redistribute protocol [process-id] [metric-value] [metric-type-value] [subnets] In this c

use the following command to reallocate route updates. This example is for OSPF ):Router (config-router) # redistribute protocol [process-id] [metric-value] [metric-type-value] [subnets]In this command:◎ Protocol: Specifies the source route protocol for Route redistribution on the vro.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 t

routesshow ip OSPF process-id; Display information related to a specific process IDshow ip OSPF; display OSPF-related informationshow ip OSPF border-routers; display border routershow ip OSPF database;show ip OSPF interface; display OSPF information on the specified interfaceshow ip OSPF neighbor; display OSPF adjacency informationshow ip OSPF request-list; Show Link status request listshow ip OSPF summary-address; show redistribution information for inductive routesshow ip OSPF virtual-links;

basic steps are listed below: • Determine that the Peer Router "supports NSF ". • Send/receive restart bits so that the Peer router knows that recovery is in progress. • Temporarily Save the adjacent information so that the Group can continue to use the last known route to continue forwarding. • Exchange New Route database information after recovery is complete HoweverProtocolDifferent mechanisms are used to establish the peer or peer relationship of the router and exchange route information.As

OSPF; only display OSPF routesShow ip ospf process-ID; displays information related to a specific process IDShow ip ospf; displays OSPF InformationShow ip ospf border-routers; display VBRShow ip ospf database; display OSPF inductive DatabaseShow ip ospf interface; displays OSPF information on the specified InterfaceShow ip ospf neighbor; displays OSPF adjacent InformationShow ip ospf request-list; display the link status request listShow ip ospf Summary-address; displays the republishing inform

NSF, Some Cisco routers can use the common Router Protocol-including Border Gateway Protocol BGP), IS-IS, and Open Shortest Path-first OSPF) to implement new stable restart expansion. These extensions can continue forwarding groups and maintain network connection stability while determining whether the primary RP can be quickly restored. To enable most Cisco NSF/stable restart deployment, the peer-to-peer Router Protocol for restarting a router must

1600Int s0/1Mpls ipMpls mtu 1600Int f1/0Mpls ipMpls mtu 1600RT4:Ip cefMpls ipMpls label protocol ldpInt s0/0Mpls ipMpls mtu 1600RT5:Ip cefMpls ipMpls label protocol ldpInt s0/0Mpls ipMpls mtu 1600Iv. Backbone Network MP_BGP commissioningRT4:Router bgp 65000No synchronization // disable synchronizationNeighbor 5.5.5.5 remote-as 65000 // establish BGP neighborsNeighbor 5.5.5.5 update-source Loopback0 // spec

-BGP: The ordinary IGP protocol can only carry IPV4 messages, obviously it is not enough, because we already know that need a protocol to host the VPN message, perhaps in other areas also need to host the IPV6 message, MP-BGP message was born to solve this problem. It is used to host the VPN message that is transmitted in the carrier network and carry some necessary extended attributes, such as Rt. Introdu

BGP is a path vector routing protocol. Its job is to exchange route information between autonomous systems to find the most effective path for accessing data somewhere on the Internet. How do I select the optimal route? Cisco borderless networks reveal 14 BGP routing principles: BGP routing principle: premise (the next hop of a route can be reached, synchronizati

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