<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">VRF provides a L3 abstraction boundary between the physical infrastucture / topology and L3 protocols , very similiar how Vlan's provide L2 abstraction within the same physical device. We commonly use VRF's business reason of common infrastructure but still have admin boundaries within the organization so that each Business Unit can have flexibility . Also very commonly used within the Data Center to provide isolation for security boundaries .. I think of them as Vlans and the same benefit that brought as a design tool VRF's do but at another layer.<div><br></div><div><br></div><div><br><div><div>On Nov 16, 2008, at 8:12 AM, Lelio Fulgenzi wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0; "><div><div style="font-family: Verdana; font-size: 10pt; color: rgb(0, 0, 0); ">is anyone using VRF? can you share when/why it should be used?<br><br><a href="http://www.cisco.com/en/US/docs/voice_ip_comm/cucme/feature/guide/vrf.html">http://www.cisco.com/en/US/docs/voice_ip_comm/cucme/feature/guide/vrf.html</a><br><br><br>---<br>Lelio Fulgenzi, B.A.<br>Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1<br>(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)<br>^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^<br>"Bad grammar makes me [sic]" - Tshirt<br><br></div>_______________________________________________<br>cisco-voip mailing list<br><a href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a><br><a href="https://puck.nether.net/mailman/listinfo/cisco-voip">https://puck.nether.net/mailman/listinfo/cisco-voip</a><br></div></span></blockquote></div><br></div></body></html>