Cogent. Autonomous Systems (ASes) 3. Today: Routing Inside an AS. Intra-AS topology ... Note: A 'node' may in fact be a group of routers, located in a single city. ...
1. Intra-Domain Routing. 6.829. Jacob Strauss *September 14, 2006. 2 ... For every packet, we need to look up the output port toward its destination ...
Main location and satellite sites. Simple design and trivial routing. Problems ... Time-To-Live field in IP packet header. Source sends a packet with a TTL of n ...
Tuesdays/Thursdays 1:30pm-2:50pm. What is Routing? A famous quotation from RFC 791 'A name indicates what we seek. An address indicates where it is. ...
Routing Protocol 1 Routing Information Protocol (RIP) ... Garbage collection Timer. When a route is marked for deletion, a Garbage-Collection timer is also started. ...
e.g., gateway calls to local calling area without billing ... new area codes adds additional calling areas. policy changes (time of day, ...) 52st IETF ...
Background OSI Model. ISO/OSI Network Model. Complete Suite of Routing Protocols ... IP Model. TCP/IP Network Model. A Little Different from OSI Network Model ...
Internet organized as a two level hierarchy. First level autonomous systems (AS's) ... istoica@cs.berkeley.edu. 27. Distance Vector: Poisoned Reverse. X. Z. 1. 4. 50 ...
TCP senders send less traffic during congestion. Routing protocols adapt ... Control and optimization of routing, to steer traffic through the network in the ...
In multiple places, but only. one at a time. Document Goals. Define each of these models ... Data federation sharing of buddy lists, etc. for unioned and exclusive ...
Optical Signaling (Intra-Domain), Next Generation Optical Control ... Single master is single point of policy control and single Delphic Oracle of network state ...
http://www.research.att.com/~jrex. Joint work with Renata Teixeira (UCSD) ... Interdomain and intradomain routing. Coupling due to hot-potato routing ...
... effects (e.g., intradomain changes leading to BGP changes) ... With the goal of leading to a better architecture. Create models of the fundamental limits ...
A Gateway For SIP Event Interworking - Sasu Tarkoma & Thalainayar Balasubramanian Ramya MOTIVATION Interworking of SIP event framework with the generic publish ...
Title: P4P: Proactive Provider Assistance for P2P Author: Y. Richard Yang Last modified by: Y. Richard Yang Created Date: 8/20/2005 3:11:58 AM Document presentation ...
Title: Evolution of Data Networks Author: A. Leon-Garcia Last modified by: Narasimha Reddy Created Date: 1/4/1999 2:45:27 AM Document presentation format
Backbone Networks Mike Freedman COS 461: ... Constrained Shortest Path First Signal along the path Source router sends msg to pin path to dest Revisit decisions ...
Title: WorldNet Data Warehouse Albert Greenberg albert@research.att.com http://www.research.att.com/~albert/talks/IF-June98.html Author: Albert Greenberg
CS 240: Network Routing Michalis Faloutsos Class Overview Expose you the general principles and highlight some interesting topics in routing Background in networks is ...
not if we want to network to run well. Adjust the routing of ... Daily snapshot of network assets & configuration. Software to parse the router config commands ...
Title: ENABLING TECHNOLOGY FOR 4G Author: ADEL S. AL-SHAHRANI Last modified by: shahas0m Created Date: 4/26/2003 7:32:22 PM Document presentation format
the router chooses the route with the shortest (smallest) metric ... OSPF (Open Shortest Path First) ... Formation of a shortest path tree for each node ...
OSPF is a flooding protocol. Every link-state advertisements sent on every link ... Atlanta. St. Louis. San. Francisco. Denver. Cambridge. Washington, D.C. ...
Traffic Measurement for IP Operations Jennifer Rexford Internet and Networking Systems AT&T Labs - Research; Florham Park, NJ http://www.research.att.com/~jrex
Incorporating various operational constraints. Other ways of measuring the traffic matrix ... Incorporating hot-potato routing. Combine traffic across egress ...
Routing Information Protocol (RIP) NETE0514 Presented by Dr.Apichan Kanjanavapastit Intra-and Interdomain Routing An internet is divided into autonomous systems.
Measuring hot-potato routing. Measuring the two routing protocols ... Extensions to measurement infrastructure. Multiple access links for a probe machine ...
... Florham Park, NJ. http://www.research.att.com/~jrex ... Experimental Results: AT&T IP Backbone. Measurement for four days ... Flow Through AT&T's IP ...
This module provides an overview of routing, introduces terminology (interdomain, ... is the precursor of RIP in IP (and Novell's IPX RIP and Apple's routing protocol) ...
Statistical assumptions don't match IP traffic. Significant error even with large # of samples ... No assumptions about routing or traffic. Applicable to ...
Forwarding techniques to make the size of the routing table manageable ... In the group-shared tree approach, the group determines the tree (CBT, PIM-SM) ...
Network-Wide Traffic Models for Managing IP Networks Jennifer Rexford Internet and Networking Systems AT&T Labs - Research; Florham Park, NJ http://www.research.att ...
IP Network Traffic Engineering Albert Greenberg Internet and Networking Systems Research Lab AT&T Labs - Research; Florham Park, NJ See http://www.research.att.com ...
Presenter: Lan Gao. 1. Origin Authentication in. Interdomain Routing ... Presenter: Lan Gao. 9. Address Delegation. The IPv4 address space is governed by IANA ...
Internet is actually divided into different Autonomous Systems ... [6] Nick Feamster, Jared Winick, and Jennifer Rexford. A Model of BGP Routing for ...
Intelligent route control by stub ASes. Overlay routing through intermediate node ... BGP is a Single-Path Protocol. Each router picks a single best route ...
COPE: Traffic Engineering in Dynamic Networks Hao Wang, Haiyong Xie, Lili Qiu, Yang Richard Yang, Yin Zhang, Albert Greenberg Yale University UT Austin
Interior Gateway Protocols RIP Why not use RIP? IGRP/EIGRP IS-IS IS-IS (cont) OSPF Why use OSPF? Link State Algorithm Routing versus Forwarding IP Routing ...
red router' Constructing the ... Hot-potato routing. Two Kinds of Routing Protocols ... Only best next-hops are chosen by each router for each destination. ...