On the Catalyst 4500 Supervisor 7-E the uplinks ports can be used with 1GE with SFP GBICs or 10GE with SFP+. Only two ports are active on each Supervisor in a redundant configuration. If a Supervisor fails the physical ports should still remain active.
It is recommended that on installation and commissioning of a new Sup7-E the Configuration Register is altered to 0x2102 before it is brought into service. This will simplify future software upgrades and allows the ISSU process to be used.
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