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In this way, the confederation preserves next hop, metric, and local preference information. To the outside world, the confederation appears to be a single AS. With this solution, iBGP transit AS problems can be resolved as iBGP requires a full mesh between all BGP routers: large number of TCP sessions and unnecessary duplication of routing ...
The Next Hop Resolution Protocol (NHRP) is an extension of the ATM ARP routing mechanism [1] that is sometimes used to improve the efficiency of routing computer network traffic over a non-broadcast, multiple access (NBMA) network. [2] It is defined in IETF RFC 2332, [3] and further described in RFC 2333. [4]
Multi-path routing can be used in conjunction with most routing protocols because it is a per-hop local decision made independently at each router. It can substantially increase bandwidth by load-balancing traffic over multiple paths; however, there may be significant problems in deploying it in practice. [1]
Router1# show ip eigrp topology 10.0.0.1 [13] 255.255.255.255 IP-EIGRP topology entry for 10.0.0.1/32 State is Passive, Query origin flag is 1, 1 Successor(s), FD is 40640000 Routing Descriptor Blocks: 10.0.0.1 (Serial0/0/0), from 10.0.0.1, Send flag is 0x0 Composite metric is (40640000/128256), Route is Internal Vector metric: Minimum ...
Multiprotocol Extensions for BGP (MBGP or MP-BGP), sometimes referred to as Multiprotocol BGP or Multicast BGP and defined in IETF RFC 4760, [1] is an extension to Border Gateway Protocol (BGP) that allows different types of addresses (known as address families) to be distributed in parallel.
As in a fix net nodes maintain routing tables. Distance-vector protocols are based on calculating the direction and distance to any link in a network. "Direction" usually means the next hop address and the exit interface. "Distance" is a measure of the cost to reach a certain node.
In computer networking, per-hop behaviour (PHB) is a term used in differentiated services (DiffServ) or Multiprotocol Label Switching (MPLS). It defines the policy and priority applied to a packet when traversing a hop (such as a router ) in a DiffServ network.
A first hop redundancy protocol (FHRP) is a computer networking protocol which is designed to protect the default gateway used on a subnetwork by allowing two or more routers to provide backup for that address; [1] [2] in the event of failure of an active router, the backup router will take over the address, usually within a few seconds.