source routing

Source routing 1 In computer networking, 'source routing' allows a sender of a data packet|packet to partially or completely specify the Routing|route the packet takes through the network. In contrast, in non-source routing protocols, router (computing)|routers in the network determine the path based on the packet's destination.

Source routing 1 Source routing allows easier troubleshooting, improved traceroute, and enables a node to discover all the possible routes to a host. It also allows a source to directly manage network performance by forcing packets to travel over one path to prevent congestion on another.

Source routing 1 In the Internet Protocol, two IPv4#Header|header options are available which are rarely used: strict source and record route (SSRR) and Loose Source Routing|loose source and record route (LSRR). Because of security concerns, packets marked LSRR are frequently blocked on the Internet. If not blocked, LSRR can allow an attacker to IP address spoofing|spoof its address but still successfully receive response packets.

Source routing 1 Software Defined Networking can also be enhanced when source routing is used in the forwarding plane. Studies have shown significant improvements in convergence times as a result of the reduced state that must be distributed by the controller into the network.

Dynamic Source Routing 1 'Dynamic Source Routing' ('DSR') is a routing Communications protocol|protocol for wireless mesh networks. It is similar to AODV in that it forms a route on-demand when a transmitting computer requests one. However, it uses source routing instead of relying on the routing table at each intermediate device.

Dynamic Source Routing 1 To avoid using source routing, DSR optionally defines a flow id option that allows packets to be forwarded on a hop- by-hop basis.

Dynamic Source Routing 1 This protocol is truly based on source routing whereby all the routing information is maintained (continually updated) at mobile nodes.

Dynamic Source Routing 1 Dynamic source routing protocol (DSR) is an on-demand protocol designed to restrict the Bandwidth (computing)|bandwidth consumed by control packets in ad hoc wireless networks by eliminating the periodic table- update messages required in the table- driven approach

Open Source Routing Machine 1 The 'Open Source Routing Machine' or 'OSRM' is a C++ implementation of a high- performance routing engine for shortest paths in road networks. Licensed under the permissive 2-clause BSD license, OSRM is a free network service. OSRM supports Linux, FreeBSD, Windows, and Mac OS X platform.

Open Source Routing Machine - Overview 1 OSRM was part of the 2011 Google Summer of Code class.[ melange.com/gsoc/project/google/gsoc201 1/bharathv/13001 Improvements to the Open Source Routing Machine (OSRM).] [ Google Summer of Code 2011]. Accessed May

Scalable Source Routing 1 'Scalable Source Routing' (SSR) is a routing protocol for unstructured networks such as mobile ad hoc networks, mesh networks, or sensor networks. It combines source routing with routing along a virtual ring, and is based on the idea of pushing Chord (peer-to-peer)|Chord into the underlay.

Scalable Source Routing - Source routing 1 In the physical network SSR utilizes source routing. Relaying nodes opportunistically cache the traversed part of the source route of a given packet. This facilitates the collection of routing information while inhibiting Cache pollution|polluting of the nodes' route caches with outdated information.

Scalable Source Routing - Classification 1 SSR has List of ad-hoc routing protocols#Reactive.28on-demand.29 routing|reactive as well as List of ad-hoc routing protocols#Pro-active.28table- driven.29 routing|proactive components, making it a List of ad-hoc routing protocols#Hybrid.28both pro-active and reactive.29 routing|hybrid routing protocol. Virtual Ring Routing is conceptually similar, the biggest difference being the usage of source routing in SSR compared to building up per-node state (routing tables) in VRR.

Loose Source Routing 1 'Loose Source Routing' is an Internet Protocol|IP option which can be used for address translation. LSR is also used to implement mobility in IP networks.

Loose Source Routing 1 Loose source routing uses a source routing option in Internet Protocol|IP to record the set of Router (computing)|routers a Packet (information technology)|packet must visit

Loose Source Routing 1 The name loose source routing comes from the fact that only part of the path is set in advance. This is in contrast with strict source routing, in which every step of the route is decided in advance where the packet is sent.

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