Dell PowerSwitch S5212F-ON EMC SmartFabric OS10 User Guide Release 10.5.0 - Page 660
Open shortest path first, Autonomous system areas
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Usage Information Use the do show ipv6 interface brief command to view IPv6 interface information in other modes. Example (Brief) OS10# show ipv6 interface brief Interface admin/ IPV6 Address/ IPv6 Oper Name protocol Link-Local Address Status Management 1/1/1 up/up fe80::20c:29ff:fe54:c852/64 Enabled Vlan 1 up/up fe80::20c:29ff:fe54:c8bc/64 Enabled Ethernet 1/1/2 up/up fe80::20c:29ff:fe54:c853/64 100::1/64 1001:1:1:1:20c:29ff:fe54:c853/64 Enabled Ethernet 1/1/3 up/up fe80::4/64 3000::1/64 4000::1/64 Disabled Ethernet 1/1/4 up/up fe80::4/64 4::1/64 5::1/64 Enabled Supported Releases 10.2.0E or later or later Open shortest path first OSPF routing is a link-state routing protocol that allows sending link-state advertisements (LSAs) to all other routers within the same autonomous system (AS) area. OSPF LSAs include information about attached interfaces, metrics used, and other attributes. OSPF routers accumulate link-state information, and use the shortest path first (SPF) algorithm to calculate the shortest path to each node. Autonomous system areas OSPF operates in a hierarchy. The largest entity within the hierarchy is the autonomous system (AS). The AS is a collection of networks under a common administration that share a common routing strategy. OSPF is an intra-AS, Interior Gateway Routing Protocol (IGRP) that receives routes from and sends routes to other AS. You can divide an AS into several areas, which are groups of contiguous networks and attached hosts administratively grouped. Routers with multiple interfaces can participate in multiple areas. These routers, called area border routers (ABRs), maintain separate databases for each area. Areas are a logical grouping of OSPF routers that an integer or dotted-decimal number identifies. Areas allow you to further organize routers within the AS with one or more areas within the AS. Areas allow subnetworks to hide within the AS-minimizing the size of the routing tables on all routers. An area within the AS may not see the details of another area's topology. An area number or the router's IP address identifies AS areas. 660 Layer 3
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