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Ethernet Circuit Ethernet Circuit Concepts • Circuit switching features – End to end quality of service – End to end Layer 2 security – Granular bandwidth • • • • Kilobit to Gigabit bandwidth scalability Ultimate flexibility Flexible variety of optical interfaces options Ethernet simplicity of operation and management Ethernet Circuit • Circuit like parameters per Flow (SLA) – Allowed bandwidth – Defined Class of Service – Electrical signal based security (VLAN and MPLS) – Layer 2 VPN • End to end solution – Same Ethernet from NIC to NIC – Tag/Label concept (like ATM header) Rate Limit Concepts Packet Rate Transmitted by user Actual Transmission by switch Setup Rate Dropped Packets Time Rate Limit • Rate limit per Ethernet Circuit – By port – By IP – By TCP/UDP port 100Mbps 60K 60K 50K 40K 30K • Tens of Kilobit level increments 20K 10K • Performed in the switch at the access level Setup rate Classification Concepts • Class of service based on DiffServ protocol • Priority marking based on ToS field • Per Circuit Classification – By port – By IP – By TCP/UDP port Classification • Up to 8 classes of service • Scheduling based on Strict Priority or Weighted Round Robin algorithms • End-to-end classification across the network • Classification is performed by the switch in the access port Security Concepts • • • • Security in Layer 2 across the network VLAN based traffic separation Layer-2 VPN with MPLS in the OSM Router End-to-end Ethernet circuit security scheme OptiSwitch Security • IP Intrusion Control – Port/MAC/IP Table look up for intrusion prevention – Unauthorized user can not access the network without the proper parameters • Management VLAN prevents access of the switch management through the access port • User/Password challenge for SNMP access • Optional IPSec Encryption of management traffic Optical Access OptiSwitch Low cost high speed Internet Access circuit High Quality Multicast circuit High Quality Voice virtual circuit Residential IP 10 Mbps 100 Mbps 1000 Mbps Local Loop Ethernet DSLAM OptiSwitch Home OSM Server Farm NMS Optical MAN Drop-Insert VLAN/DiffServ VLAN/DiffServ MPLS/DiffServ 100 Mbps 1000 Mbps 1000 Mbps OptiSwitch OSM WDM NMS MPLS/DiffServ Optical Transport