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The device terminates section overhead and line overhead on OC- 48/STM-16, 4xOC-12/, 16xOC-3 interfaces, and supports options to terminate and/or monitor STS path overhead (POH) and transport overhead (TOH).
Signaling information is passed between switches, either through out-of-band connections or in-band encoding in the transport overhead.
Since the logical grouping of users in a VLAN is accomplished by the switch hardware, creating subsets of users does not require the transport overhead associated with IP routing or the cost and complexity of firewalls.
Summary of new OS features: --IPSec VPN for secure connectivity --Stateful firewall includes policy-based port and network address translation, content filtering, stateful inspection, application level gateways and network attack detection and protection --Multicast routing reduces infrastructure costs with less bandwidth requirements and transport overhead --Web-based GUI provides a detailed guided set-up for routing, security, and device management with advanced reporting and analysis Price and Availability The Tasman 1001 is currently shipping through its global network of partners and is list priced at $995.
This advanced transport technology for DOCSIS-based cable modems can significantly increase system data capacity by reducing transport overhead to give MSO's deploying the DPX2100 the ability to support more modem users without requiring additional RF bandwidth.
The "Framer That Grooms" provides all SONET/SDH framing, transport overhead processing, path termination and strictly non-blocking, full availability switching for applications such as Multi-Service Provisioning Platforms (MSPPs), add/drop and terminal multiplexers, and digital cross-connects with STS-1/VC-4/VC-3 and VT1.
This advanced transport technology for DOCSIS-based cable modems can significantly increase system data capacity by reducing transport overhead to give MSOs deploying the DPX2100 the ability to support more modem users without requiring additional RF bandwidth.
The functions include aggregation of up to 16 channels of traffic, pointer processing, serializing/deserializing, clock and data recovery, and transport overhead (TOH) and path overhead (POH) processing.