Ethernet Circuit Ethernet Circuit Concepts Circuit switching features

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 • Tens of Kilobit level increments 100 Mbps 60 K 50 K 40 K 30 K 20 K 10 K • Performed in the switch at the access level Setup rate

Classification Concepts • Class of service based on Diff. Serv protocol • Priority marking based on To. S 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 Opti. Switch

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 Opti. Switch Low cost high speed Internet Access circuit High Quality Multicast circuit High Quality Voice virtual circuit

Residential IP 10 Mbps 1000 Mbps Local Loop Ethernet DSLAM Opti. Switch Home OSM Server Farm NMS

Optical MAN Drop-Insert VLAN/Diff. Serv MPLS/Diff. Serv 100 Mbps 1000 Mbps Opti. Switch OSM WDM NMS MPLS/Diff. Serv Optical Transport