The Cisco ONS 15454 Multiservice Transport Platform (MSTP) features a radical new approach to Ethernet over dense wavelength-division multiplexing (DWDM) transport and aggregation. The Cisco ONS 15454 Gigabit Ethernet XPonder card includes DWDM transmission functions and Layer 2 switching functions. Background Metro transport networks must support numerous service demands, from low-rate DS-1/T1, DS-3/E3, 10/100BASE-T, and OC-3/STM-1 to higher-rate OC-12/STM-4, Gigabit Ethernet, OC-48/STM-16, OC-192/STM-64, and 10 Gigabit Ethernet services. As the importance of broadband data services continues to increase and Ethernet becomes an essential protocol, service providers need more integration between Ethernet switching and transport to optimize capital investment and reduce operating costs. Industry trends indicate that DWDM is the technology being used to transport the huge amount of bandwidth that broadband services are consuming. Thus, DWDM needs to evolve from simply offering management capabilities for Layer 1 (where optical wavelengths are dispatched across the network) to offering Layer 1 and Layer 2 capabilities that provide wavelength connection in addition to VLAN management; quality of service (QoS); and multicast, broadcast, and unicast services all with reliability comparable to or better than that of older time-division multiplexing (TDM) technologies. Product Overview The Cisco ONS 15454 Gigabit Ethernet XPonder card portfolio includes two options: an XPonder card and an enhanced XPonder card. The portfolio provides a complete solution with the basic XPonder card optimized for Ethernet access applications; the enhanced XPonder card provides additional capabilities for Ethernet aggregation rings. An XPonder card is a dual-slot Cisco ONS 15454 MSTP board providing 20 Small Form-Factor Pluggable (SFP)-based Gigabit Ethernet client ports and two 10 Gigabit SFP (XFP)-based trunk ports supporting G.709 digital wrappers and Enhanced Forward Error Correction (E-FEC) capability. You can equip trunk ports with a DWDM XFP port developed to meet wavelength-division multiplexing (WDM) filter specifications; this port provides the XPonder card with the DWDM interface. You can equip the 20 client ports with different Gigabit Ethernet SFPs: SX, LX, ZX, coarse wavelength-division multiplexing (CWDM), DWDM, or electrical (RJ-45). Please Note: This product may not come with brackets.
