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Key Architectural Features
Applications
Interfaces
Product Specifications

• Broadband Subscriber Management – The ST-series
combines industry-leading performance, high availability
and comprehensive routing to deliver any type of consumer
or business service—including Video on Demand,Voice
over IP (VoIP) and VPNs—over DSL while reducing costper-
subscriber.
- 128,000 active sessions
- Non-stop forwarding for subscriber sessions
- DSL Forum TR-059 QoS
- Integrated ATM switching

• Business VPNs – With the ST-series, profitable, scalable
business services including Internet, dynamically routed
IP VPNs, virtual private LAN service (VPLS) and VoIP can
now be delivered with the bandwidth guarantees, reliability
and QoS required to meet stringent service level agreements.
- 8,000 virtual routers (VRFs) with dynamic routing
- Over 2,000,000 VPN routes
- Over 3,000 BGP peering sessions

• IP Routing – The ST-series incorporates a complete
and robust implementation of Internet routing protocols,
enabling the platform to simultaneously support backbone
routing, session management and dynamic business or
wholesale VPN routing.
- BGP-4
- IS-IS-TE, OSPF-TE, RIPv1, RIPv2
- LDP, RSVP-TE
- MPLS IP VPNs

• Layer 2 Switching – Integrated Layer 2 switching enables
the ST-series to natively switch ATM circuits or Ethernet
virtual LAN (VLAN), enabling consolidation of network
elements as well as delivery of a number of cost-saving
applications including native ATM or Ethernet aggregation
and ATM or Ethernet switch interconnect.
- ATM virtual path (VP) or virtual circuit (VC) switching
- Ethernet switching
- PWE3 compliant ATM, Frame Relay and Ethernet
over MPLS
- Any-to-any service interworking