Advancement
In order to address the issues of address space and other factors, Cisco created EIGRP (Enhanced Interior Gateway Routing Protocol). EIGRP adds support for VLSM (variable length subnet mask) and adds the Diffusing Update Algorithm (DUAL) in order to improve routing and provide a loopless environment. EIGRP has completely replaced IGRP, making IGRP an obsolete routing protocol. In Cisco IOS versions 12.3 and greater, IGRP is completely unsupported. In the new Cisco CCNA curriculum (version 4), IGRP is mentioned only briefly, as an "obsolete protocol".
Read more about this topic: Interior Gateway Routing Protocol
Famous quotes containing the word advancement:
“The American people owe it to themselves, and to the cause of free Government, to prove by their establishments for the advancement and diffusion of knowledge, that their political Institutions ... are as favorable to the intellectual and moral improvement of Man as they are conformable to his individual and social rights.”
—James Madison (1751–1836)
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—Virginia Crocheron Gildersleeve (1877–1965)
“On fields all drenched with blood he made his record in war, abstained from lawless violence when left on the plantation, and received his freedom in peace with moderation. But he holds in this Republic the position of an alien race among a people impatient of a rival. And in the eyes of some it seems that no valor redeems him, no social advancement nor individual development wipes off the ban which clings to him.”
—Frances Ellen Watkins Harper (1825–1911)