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NM-1A-OC3SML, Cisco NM-1A-OC3SML, Single-Port ATM 155 Mbps OC-3 Single-Mode Long-Reach Network Module
The ATM OC-3 network modules provides robust ATM QoS capabilities of Layer 2 per-VC queuing, bandwidth management, and robust ATM service categories such as UBR+, VBR-rt, VBR-nrt, and ABR. With these new ATM service categories, users have more flexible access to network resources and can achieve a compromise between performance and cost. Additionally, network operators are able to share network resources among different customers and fulfill their needs in a cost-effective manner. Users can now better optimize the application requirements as compared to the network capabilities and can select a specific combination of traffic and performance parameters.
The ATM OC-3 network modules are ideal for connecting directly to ATM Wide Area Network (WAN) at large, remote, branch office sites to a central site via a public or privately owned ATM WAN or for connections to a colocated Cisco ATM switch to provide integrated Circuit Emulation Service (CES) data, voice, and video support. Voice over IP (VoIP) over ATM applications is supported using the currently available voice/fax network modules and associated voice interface cards. Support is also provided for other advanced ATM Layer 2 features such as Internet Engineering Task Force (IETF) Point-to-Point Protocol (PPP) over ATM, Tag Switching, multiprotocol over ATM (MPOA), and multilayer switching (MLS) enhancing ATM performance for enterprise and service providers.
These ATM network modules also allow the Cisco 3600 series modular access routers to provide advanced Cisco IOS® features, such as Committed Access Rate (CAR), RSVP, Cisco Express Forwarding (CEF), and Cisco IOS Firewall Feature Set to provide the customer with end-to-end QoS. |