This is know as “Triple Play” and allows for the provisioning of bandwidth-intensive and lesser bandwidth-intensive services at the same time. The DAS-3224 also supports network uplink aggregation, enabling the operator to combine both of the GE uplink interfaces into a single logical interface and thus extending the transmission bandwidth. Daisy Chaining is an another option, when implemented all units share a single GE uplink. Furthermore, Service Demarcation provides a way to separate traffic byassigning different VLAN IDs.
With the DAS-3224, Relay Agent Information (DHCP Option 82) can be used by servers in order to implement IP address or other parameter assignment policies. The DAS-3224 offers MAC Limiting and MAC Filtering through its MAC Layer Service. It also uses Single End Loop Testing (SELT) for proactive loop pre-qualification. Line quality is continuously verified while line length, line capacity and line termination are measured. Dual End Loop Testing (DELT) is primarily used for reactive tests on a loop after a modem has been deployed. This feature renders troubleshooting on lines with bad performance possible. Operation Management and Maintenance (OAM) is implemented for supervision, testing and performance monitoring. OAM loop-back cells are used to verify the integrity of a virtual path or virtual circuit between different nodes in an ATM network.
The DAS-3224 comes with a GUI management software. This software provides webmanagement features including real-time status monitoring. The IP DSLAM also supports Network Management System monitoring and administration tasks.
For Quality of Service, the DAS-3224 supports IEEE 802.1p with 8 priority queues and DiffServ, a networking architecture that defines a simple, scalable and coarse-grained mechanism for classifying and managing network traffic. DiffServ is used to provide low-latency, guaranteed service (GS) such as voice or video, while providing best-effort traffic guarantees to non-critical services including web traffic or file transfers. Pack classification is based on MAC/IP addresses and TCP/UDP port numbers.
The DAS-3224 IP DSLAM is enclosed in 1.2U sized metal cases and can be used as desktop units or mounted on a standard equipment rack. It can be fitted in 19-inch and 23-inch racks using the optional rack mount-kit.
The DAS-3224 IP DSLAM comes with 24 ADSL subscriber ports and 2 combo interfaces (10/100/1000 Base-T or mini-GBIC optical interface).
Using any of the uplink types, it is possible to stack this IP DSLAM unit and aggregate multiple units over a common network connection.
The rich features of the DAS-3224 IP DSLAM makes it most economical and suitable solution for next generation broadband access platforms.
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