routine that updates the local node’s routing table based on a new route is given by mergeRoute. Although not shown, a timer function periodically scans the list of routes in the node’s routing table, decrements the TTL (time to live) field of each route, and discards any routes that have a time to live of 0. Note, however, that the TTL field is reset to MAX_TTL any time the route is reconfirmed by an update message from a neighboring node.
routine that updates the local node’s routing table based on a new route is given by mergeRoute. Although not shown, a timer function periodically scans the list of routes in the node’s routing table, decrements the TTL (time to live) field of each route, and discards any routes that have a time to live of 0. Note, however, that the TTL field is reset to MAX_TTL any time the route is reconfirmed by an update message from a neighboring node.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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routine that updates the local node’s routing table based on a new
route is given by mergeRoute. Although not shown, a timer function periodically scans the list of routes in the node’s routing table, decrements the
TTL (time to live) field of each route, and discards any routes that have a
time to live of 0. Note, however, that the TTL field is reset to MAX_TTL any
time the route is reconfirmed by an update message from a neighboring
node.
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