SmartSwitch Router User Reference Manual xviiContentsConfiguring RIP Route Preference .............................................................................108Configuring RIP Route Default-Metric......................................................................108Monitoring RIP .....................................................................................................................108Configuration Example .......................................................................................................109Chapter 11: OSPF Configuration Guide............................................... 111OSPF Overview ....................................................................................................................111OSPF Multipath.............................................................................................................112Configuring OSPF ................................................................................................................112Enabling OSPF...............................................................................................................113Configuring OSPF Interface Parameters ...................................................................113Default Cost of an OSPF Interface ..............................................................................114Configuring an OSPF Area..........................................................................................115Configuring OSPF Area Parameters ..........................................................................116Creating Virtual Links..................................................................................................116Configuring Autonomous System External (ASE) Link Advertisements ............117Configuring OSPF for Different Types of Interfaces ...............................................117Monitoring OSPF..................................................................................................................118OSPF Configuration Examples...........................................................................................120Exporting All Interface & Static Routes to OSPF .......................................121Exporting All RIP, Interface & Static Routes to OSPF...............................121Chapter 12: BGP Configuration Guide................................................. 125BGP Overview ......................................................................................................................125The SSR BGP Implementation.....................................................................................126Basic BGP Tasks....................................................................................................................126Setting the Autonomous System Number ................................................................127Setting the Router ID ....................................................................................................127Configuring a BGP Peer Group ..................................................................................127Adding and Removing a BGP Peer ............................................................................129Starting BGP...................................................................................................................129Using AS-Path Regular Expressions ..........................................................................129AS-Path Regular Expression Examples ..............................................................131Using the AS Path Prepend Feature...........................................................................131Notes on Using the AS Path Prepend Feature...................................................132BGP Configuration Examples ............................................................................................132BGP Peering Session Example ....................................................................................133IBGP Configuration Example......................................................................................135IBGP Routing Group Example.............................................................................136IBGP Internal Group Example.............................................................................139EBGP Multihop Configuration Example...................................................................142Community Attribute Example ..................................................................................145Notes on Using Communities..............................................................................152Local Preference Examples ..........................................................................................152Using the local-pref Option..................................................................................154Using the set-pref Option .....................................................................................154Multi-Exit Discriminator Attribute Example ............................................................155EBGP Aggregation Example .......................................................................................156Route Reflection Example............................................................................................157
