Transcript Ethernet Circuit

Ethernet Circuit
Ethernet Circuit Concepts
• Circuit switching features
– End to end quality of service
– End to end Layer 2 security
– Granular bandwidth
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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
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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