To control how Open Shortest Path First (OSPF) calculates default metrics for an interface, use the auto-cost command. To assign the default reference bandwidth of 40Gb/s, use the no form of this command.
auto-cost reference-bandwidth bandwidth [Gbps | Mbps]
Defaults
40 Gb/s. The bandwidth defaults to Gb/s if you do not specify the Gpbs or Mbps keyword.
I wonder why Cisco is leaning towards 40G instead of 100G.
One would think that Cisco will sell 40G linecards to the customer and .... a few months later the same customer has to buy 100G linecards.
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