Cross-stack EtherChannel, FlexLink, and SPAN is now officially supported on the Catalyst 2975. No software upgrade is needed.

The Catalyst 2975 does not support ePoE for the 1250 APs. But it does support the new 1140 802.11n APs which are 802.3af compliant.

The Catalyst 2960-24PC-L supports both SFP transceivers but the GLC-FE-100FX does consume less power than the GLC-GE-100FX.The Catalyst 3560-8PC-S supports only the GLC-FE-100FX because the switch is fanless and the GLC-GE-100FX generates too much he...

L2-4 ACLs are supported on the 2960 LAN Base switches and the 2950 Enhanced Image switches. For the 2960 switches the lookups are done in hardware with no performance impact. The 2960 LAN Lite switches and 2950 Standard Image switches do not suppor...

It is the same part. The "=" is just used to connotate a spare unit that is purchased separately.