128SAP-20GE2XPFront panelFigure 113 SAP-20GE2XP front panel(1) SFP ports (GE0 to GE15) (2) Combo interfaces (GE16 to GE19)(3) SFP+ port 0 (4) SFP+ port 1(5) Operating status LED (RUN)Technical specificationsItem SpecificationFlash 8 MB.Memory type and size • Default—Two 2-GB DDR3 SDRAMs.• Maximum—Four 2-GB DDR3 SDRAMs.NVRAM 128 KB.SFP ports16 × SFP ports, 100/1000 Mbps auto-sensing.The following transceiver modules are available for the SFP ports:• 100 Mbps SFP transceiver modules.• 1000 Mbps SFP transceiver modules.• 100/1000 Mbps SFP transceiver modules.• SFP-T copper transceiver modules (The SFP port supports10/100/1000 Mbps auto-sensing when used with this type oftransceiver module.)Combo interfacesFour.• Copper port—Straight-through/crossover autosensing:{ 10/100 Mbps, half/full-duplex.{ 1000 Mbps, full-duplex.• Fiber port—1000 Mbps, full-duplex.10G SFP+ ports 2.Hot swapping Supported.Fixed Ethernet port specificationsTable 55 SFP port specificationsItem SpecificationConnector type LCTransceiver module type SFPNetwork synchronization Supported1588v2.2 protocol SupportedInterface standards 802.3, 802.3u, and 802.3ab