• Classic EIGRP Problem
    • Loses bandwidth visibility at 10 Gbps.
    • Anything 10Gbps and above has metric of 256
    • Same with Delay, anything above 1 GigE = 10
  • Wide Metrics
    • Only in named mode.
    • Automatically turned on when using named mode.
    • 64 bits.
    • Scales higher
    • Bandwidth
      • 10^7 * 65536/Interface Bandwidth
      • Called Throughput
    • Delay
      • Uses picoseconds instead of microseconds.
      • Called Latency
  • IOS RIB
    • Only supports 32 bit metrics
    • After DUAL runs, metric is scaled down to fit into RIB.
    • Default scale is 1/128, can be modified with below command
      • ‘metric rib-scale’
        • All the way down into AF AS

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