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:
“There is no pre-established harmony between the advancement of truth and the well-being of mankind.”
—Friedrich Nietzsche (1844–1900)
“Woman—with a capital letter—should by now have ceased to be a specialty. There should be no more need of “movements” on her behalf, and agitations for her advancement and development ... than for the abolition of negro slavery in the United States.”
—Marion Harland (1830–1922)
“If we could produce one or two more Madame Curies, that would accomplish far more for the advancement of women than any amount of agitation, argument and legislation.”
—Virginia Crocheron Gildersleeve (1877–1965)