<?xml version='1.0'?>

<reference anchor='RFC2642'>

<front>
<title>Cabletron's VLS Protocol Specification</title>
<author initials='L.' surname='Kane' fullname='Laura Kane'>
<organization>Cabletron Systems, Inc.</organization>
<address>
<postal>
<street>POB 5005</street>
<city>Rochester</city>
<region>NH</region>
<code>03866-5005</code>
<country>US</country></postal>
<phone>+1 603 332 9400</phone>
<email>lkane@ctron.com</email></address></author>
<date month='August' year='1999' />
<abstract>
<t>The Virtual LAN Link State Protocol (VLSP) is part of the InterSwitch Message Protocol (ISMP) which  provides interswitch communication between switches running Cabletron's SecureFast VLAN (SFVLAN) product. VLSP is used to determine and maintain a fully connected mesh topology graph of the switch fabric. Each switch maintains an identical database describing the topology. Call-originating switches use the topology database to  determine the path over which to route a call connection.</t>
<t>VLSP provides support for equal-cost multipath routing, and recalculates routes quickly in the face of topological changes, utilizing a minimum of routing protocol traffic.</t></abstract></front>

<seriesInfo name='RFC' value='2642' />
</reference>
