The hierarchy of FidoNet BBS nodes, hubs, and zones was maintained in a routing table called a Nodelist.

Each node maintains a data store containing documents associated with keys, and a routing table associating nodes with records of their performance in retrieving different keys.

For routing, the entries in the IPX routing table are similar to IP routing tables ; routing is done by network address, and for each network address a network: node of the next router is specified in a similar fashion an IP address / netmask is specified in IP routing tables.

Multiprotocol Label Switching ( MPLS ) is a mechanism in high-performance telecommunications networks that directs data from one network node to the next based on short path labels rather than long network addresses, avoiding complex lookups in a routing table.

As mentioned above, when MPLS was conceived, label lookup and label switching were faster than a routing table or RIB ( Routing Information Base ) lookup because they could take place directly within the switched fabric and not the CPU.

The forwarding of the packet is done based on the contents of the labels, which allows " protocol-independent packet forwarding " that does not need to look at a protocol-dependent routing table and avoids the expensive IP longest prefix match at each hop.

Then, using information in its routing table or routing policy, it directs the packet to the next network on its journey.

* Control plane: A router records a routing table listing what route should be used to forward a data packet, and through which physical interface connection.

It uses data recorded in the routing table control plane.

When each router receives a packet, it searches its routing table to find the best match between the destination IP address of the packet and one of the network addresses in the routing table.

Besides making decision as which interface a packet is forwarded to, which is handled primarily via the routing table, a router also has to manage congestion, when packets arrive at a rate higher than the router can process.

Yet another function a router performs is called policy-based routing where special rules are constructed to override the rules derived from the routing table when a packet forwarding decision is made.

Because structured addresses allow a single routing table entry to represent the route to a group of devices, structured addressing ( routing, in the narrow sense ) outperforms unstructured addressing ( bridging ) in large networks, and has become the dominant form of addressing on the Internet, though bridging is still widely used within localized environments.

( This information, the list of destinations, the total cost to each, and the next hop to send data to get there, makes up the routing table, or distance table.

The Michigan Brigade participated in an engagement at Louisa Court House against enemy cavalry under Thomas L. Rosser, routing the Confederates and capturing the village and its important stores of military supplies.

This automatic mirroring counteracts the times when web traffic becomes overloaded, and due to a mature network's intelligent routing, a network of size n should only require log ( n ) time to retrieve a document on average.

Furthermore, the routing algorithm is capable of routing over a mixture of opennet and darknet connections, allowing people who have only a few friends using the network to get the performance from having sufficient connections while still receiving some of the security benefits of darknet connections.

IGRP was created in part to overcome the limitations of RIP ( maximum hop count of only 15, and a single routing metric ) when used within large networks.

The network's design included the recognition it should provide only the functions of efficiently transmitting and routing traffic between end nodes and that all other intelligence should be located at the edge of the network, in the end nodes.

Routers that perform routing based only on the label are called label switch routers ( LSRs ).

For end-users the use of MPLS is not visible directly, but can be assumed when doing a traceroute: only nodes that do full ip routing are shown as hops in the path, thus not the MPLS nodes used in between, therefore when you see that a packet hops between two very distant nodes and hardly any other ' hop ' is seen in that providers network ( or AS ) it is very likely that that network uses MPLS.

There is only one routing layer, as there are no preferred nodes with any special infrastructure function.

Most routing algorithms use only one network path at a time, but multipath routing techniques enable the use of multiple alternative paths.

The idea is the same as distance vector routing except that only speaker nodes in each autonomous system can communicate with each other.

Multicasting saves bandwidth by allowing routing updates and address-resolution messages to be sent only to specific groups of routers.

Thus, the smallest allocation and routing block contained only 256 addresses — too small for most enterprises, and the next larger block contained addresses — too large to be used efficiently by even large organizations.

With hierarchical routing, only core routers connected to the backbone are aware of all routes.

* The network nodes are faster and have higher capacity in theory, since they are switches that only perform routing during the connection establishment phase, while connectionless network nodes are routers that perform routing for each packet individually.

The OSPF protocol, when running on IPv4, can operate securely between routers, optionally using a variety of authentication methods to allow only trusted routers to participate in routing.

When there is only one route out of the area, fewer routing decisions have to be made by the route processor, which lowers system resource utilization.

It is also possible to declare an area both totally stubby and not-so-stubby, which means that the area will receive only the default route from area 0. 0. 0. 0, but can also contain an autonomous system boundary router ( ASBR ) that accepts external routing information and injects it into the local area, and from the local area into area 0. 0. 0. 0.

* Alliance Access ( SAA ) is the main messaging software by SWIFT, which allows message creation only for FIN messages, but routing and monitoring for FIN and MX messages.

* Topology Table: Confusingly named, this table does not store an overview of the complete network topology ; rather, it effectively contains only the aggregation of the routing tables gathered from all directly connected neighbors.

It is possible to make extremely fast memory but this is only practical for small amounts of memory for cost, power and signal routing reasons.

The Departure Bay ferry is the only marine link on the Trans Canada system that has no freeway or other high mobility highway access, instead routing TCH traffic through downtown Nanaimo streets to reach the ferry to Vancouver.

As Marguerite Merrington explains in The Custer Story in Letters, " George Custer meticulously scouted every battlefield, gauged the enemies weak points and strengths, ascertained the best line of attack and only after he was satisfied was the ' Custer Dash ' with a Michigan yell focused with complete surprise on the enemy in routing them every time.

Typically, some bandwidth is allocated by default to network control packets ( such as Internet Control Message Protocol and routing protocols ), while best effort traffic might simply be given whatever bandwidth is left over.

This tree then serves to construct the routing table, which specifies the best next hop to get from the current node to any other node.

Path selection involves applying a routing metric to multiple routes, in order to select ( or predict ) the best route.

By eligible to be submitted, BGP will submit the routes that it considers best to the main routing table process.

Heuristic routing is achieved using specific algorithms to determine the best, although not always optimal, path to a destination.

In the past, EIGRP was described in various Cisco marketing materials as a balanced hybrid routing protocol, allegedly combining the best features from link-state and distance-vector protocols.

The collection of best paths will then form the node's routing table.

He was best noted for breaking the siege at the Battle of Fancheng in 219 by routing enemy general, Guan Yu, on the field.

GameDaily's Big Download considered Simutrans to be one of the best freeware games, highlighting the logical system of routing passengers and freight to their destinations, decent AI opponents and the support for custom aesthetics or rules-sets.

Request routing directs client requests to the content source best able to serve the request.

Administrative distance is the measure used by Cisco routers to select the best path when there are two or more different routes to the same destination from two different routing protocols.

Qnext uses direct P2P routing to find the best available network connection ; the quality of the user ’ s online telephone call is high.

From 1998 – 2001, officials from Arizona, Nevada, and several federal government agencies collaborated to determine the best routing for an alternative river crossing.

Raw sockets are typically available in network equipment, and used for routing protocols such as the Internet Group Management Protocol ( IGMP ) and Open Shortest Path First ( OSPF ), and in the Internet Control Message Protocol ( ICMP, best known for the ping suboperation ).

Even considering TTL expiry, all types of routing loops are best avoided as they involve at least temporary network degradation.

Unfortunately, it is often the case on the larger internet backbone that routing is asymmetric and you cannot count on the routing table to point to the best route for a source to get to a router.

Since it is the purpose of the U. S. numbered system to mark the best and shortest route available, an alternate route should be designated only where both routes are needed to accommodate the traffic demand, and when the alternate route has substantially the same geometric and structural design standards of the main marked routing.

* Choosing the best routing switching path

* By definition, a link-state algorithm uses the available information to produce the best route, so routing is as optimal as possible, given the available information.