When I connected my new ProCurve Networking by HP Series 2500 switch to my HP ProCurve Switch 4000m using a Gigabit-SX or Gigabit-LX connection, the link did not come up. Why not?
The ProCurve Networking by HP Gigabit-SX module used in the HP ProCurve Switch 4000m, 8000m, 1600m, 2424m and 2400m is set by factory-default to “1000 Fdx” whereas the factory-default setting for the ProCurve Networking by HP Gigabit-SX transceiver used in the ProCurve Networking by HP Series 2300 and 2500 switches is “Auto”. The configuration must be set to match on both ends to provide Gigabit connectivity.
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