Cabletron Systems CyberSWITCH CSX200 Configuration Manual

Also see for CyberSWITCH HSIM-W6: Setup guide User guide User guide Installation guide

Contents

Configuration with QuickSET130QuickSET Configuration Guide* If the router is not configured to authenticate RIP-2 messages, then RIP-1 and unauthenticatedRIP-2 messages will be accepted. Authenticated RIP-2 messages will be discarded. If the router isconfigured to authenticate RIP-2 messages, then RIP-1 messages and RIP-2 messages which passauthentication testing will be accepted. Unauthenticated and failed authentication RIP-2 messagesshall be discarded.OSPF SettingsThe OSPF Settings window shown in Figure 140, on the following page, displays after clicking onthe OSPF Settings button in the Advanced Routing Configuration window. OSPFOSPF (Open Shortest Path First) is a Link-State Protocol. OSPF distributes routing informationbetween routers belonging to a single Autonomous System (AS). In an Autonomous System,routers exchange routing information through a common routing protocol.An Autonomous System may contain one or more networks, but each network within the AS mayor may not support subnetting. Every OSPF routing domain must have a “Backbone”. An OSPFbackbone distributes routing information between areas in an OSPF routing domain. Thebackbone of an OSPF routing domain is an OSPF area possessing an area ID of 0.0.0.0.Because OSPF Protocol only broadcasts link state updates when the topology has changed, it isconsidered “quiet” when compared to RIP Protocol, which has to periodically send a portion, or allof its routing table to its neighbors.Convergence (the time it takes to recalculate routing tables) under the OSPF Protocol isinstantaneous and not periodic because of the use of IP Multicast to send the link-state updates.Updates are only sent when routing changes occur instead of periodically, ensuring better use ofavailable bandwidth.