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Load Sharing (pages 109-112)

Load Sharing (pages 109-112). Can be equal cost or unequal-cost Load sharing can be: per destination (fast switching), or per packet (process switch) ASIC vs CPU. OSPF Router Types. Internal Rtr - all interfaces in single area Backbone Rtr – at least 1 interface in area 0

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Load Sharing (pages 109-112)

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  1. Load Sharing (pages 109-112) • Can be equal cost or unequal-cost • Load sharing can be: • per destination (fast switching), or • per packet (process switch) • ASIC vs CPU

  2. OSPF Router Types • Internal Rtr - all interfaces in single area • Backbone Rtr – at least 1 interface in area 0 • Area Border Router – has interfaces in multiple areas • Autonomous System Border Router – act as gateways between OSPF and other routing protocols

  3. In Quito, Lima, etc. no need to run OSPF Example for Quito router ip route 0.0.0.0 0.0.0.0 192.168.2.1 In M1, for Quito LAN, add a static route ip route 192.168.64.0 255.255.255.0 192.168.2.2 In M1 (and M2) add to OSPF routing statements Router OSPF 50 redistribute static subnets redistribute connected subnets

  4. OSPF redistribute • Lots of options • Protocol type (static, RIP, EIGRP, etc.) • Metric • Metric-type • Route-map • Subnets (do this almost always)

  5. OSPF Virtual Link • Connect 2 areas without using area 0 • Must be configured between ABRs • Transit area must have full routes • You must know the Router ID of end points

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