Category: BGP
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There are four ways to distribute a default route in BGP. Three of them, the network 0.0.0.0, the default-information originate and redistribution from another routing protocol, are all similar in the resulting effect: they will inject the default route into BGP RIB and it will be advertised to all BGP…
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We can verify each BGP address family now maintains routes for its respective VRF. In order to view the BGP routes for a specific VRF, use the following command: router#show ip bgp vpnv4 vrf <%vrfname%> neighbors <%ipaddress%> advertised-routes
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Some information on how to configure multiprotocol extended Border Gateway Protocol (MP-EBGP). Extended BGP allows for the transport of routing information for multiple network layer protocols IPv6, VPNv4, and others. MP-BGP allows you to have a unicast routing topology different from a multicast routing topology, which helps to control the network and…
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You can also configure eBGP using a loopback address (or any other operational interface) as shown in this section. Loopback interfaces are used in this manner to guarantee reachability in networks with multiple paths as shown in the Load Sharing Using the Loopback Address as a BGP Neighbor section of Load…
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In this configuration, the router owen is in AS 300 and Router jazz is in AS 400. Peers must be directly connected when using eBGP. If they are not directly connected, the neighbor ebgp-multihop command must be used and a path through an IGP or static route to reach the peer…
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In this configuration, both routers are in AS 400.
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Just came across some useful info from these BGP Case Studies.
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Running a dual link configuration to ensure no SPOF using BGP and EIGRP.
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Because my brain and eyesight are failing fast, i have to write it down nowadays, here’s a very basic BGP configuration with 3 different Autonomous System (AS) Numbers.
MystaJoneS 