Overview
Rosa provides MEF compliant packet switching and aggregation for Carrier Class Metro Ethernet applications. VLAN aware Ethernet switching compliant with IEEE 802.1D/.1Q/.1ad
Typical applications include:
- MEF compliant E-LINE and E-LAN over SONET/SDH and WDM
- Ethernet aggregation in metro access networks
- Interface cards in Telecom or Datacom equipment
Features:
- Carrier-class switching for MEF-9 and MEF-14 compliant applications
- VLAN aware Ethernet switching compliant with IEEE 802.1D/.1Q/.1ad
- Packet switching:
-
- 7 Mpps full rate, all functions enabled
- 4.8 Gb/s data bandwidth
- Jumbo frames of 16 kbyte
- Automatic address learning and aging
- 32k MAC addresses
- Rapid spanning tree (802.1w) and GVRP
- Flexible classification, queuing and scheduling engine
- L3 aware classifier for 16k QoS flows
- Flow select on VLAN, UPT, IP-TOS or MAC address
- Dual leaky-bucket rate control, per flow (RFC 2697, RFC2698 and MEF-10)
- Flexible Traffic Class assignment per flow
- Performance monitoring per port, per flow and per color with 32 bit counters
- 4 priority queues per port
- Ingress and Egress shaper per port, rate programmable in steps of 100 kb/s
- Strict priority or DWRR scheduling
- Link Aggregation Groups
- Port Mirroring
- Port locking per SA address
- Round trip delay measurement, end-to-end
- OAM packet processing
Interfaces:
- 13 Ethernet ports:
- 4 RGMII ports with full MAC supporting triple rate PHYs
- 8 RGMII ports with reduced MAC, optimized for connection to 2 ETHOS Ethernet over SONET/SDH mappers
- 1 RMII port for data transport to the management CPU
- DDR2 SDRAM for packet buffer (64 MB)
- SRAMs for MAC address table, Flow tables and Performance counters
- Parity and CRC check on all interfaces
- 32-bit interface to external CPU
Applications:
- Metro Ethernet Forum compliant E-Line and E-LAN applications
- Ethernet Aggregation and distribution in the First Mile (IP-TV, optical FE, VDSL, PON)
- Flexible packet transport over SONET/SDH and WDM systems
- MSPP, CPE, OED, router or switch blades