8-port OC-3c/STM-1 ATM Line Card Overview
The 8-port OC-3c/STM-1 ATM line card supports traffic shaping, and delivers line rate OC-3c/STM-1
bandwidth while performing traffic shaping and per-virtual circuit (VC) queueing. It also supports
per-VC Modified Deficit Round Robin (MDRR) and per-VC low latency queueing (LLQ).
MDRR is implemented on a per-VC basis, with up to eight queues per VC. One of the queues is a low
latency queue. Both per-VC WRED and per-VC MDRR are performed in hardware.
The 8-port OC-3c/STM-1 ATM line card provides the Cisco 12000 Series Router with eight 155 Mbps
ATM interfaces. The card interfaces to the router's switch fabric and provides eight OC-3c/STM-1 SC
connectors for duplex single-mode or multimode SONET/SDH connections.
4-port OC-12c/STM-4c ISE and 4-port OC-3c/STM-1 ISE ATM Line Card
The 4-port ISE ATM line cards provide the Cisco 12000 series routers with an ATM line card that offers
the IP services engine or Engine 3 features, including extensive traffic queuing, shaping, and congestion
management features, at a sustained full duplex throughput of 5.66 million cells per second (4-port
OC-12c/STM-4c ISE ATM line card) or 1.41 million cells per second (4-port OC-3c/STM-1 ISE ATM
line card). The 4-port ISE ATM line card is available with either OC-12c/STM-4c or OC-3c/STM-1
interfaces. Except for the speed of the interfaces, these line cards provide identical functionality, and are
referred to throughout this document as the 4-port ISE ATM line cards.
The 4-port ISE ATM line card delivers a robust set of edge packet processing features such as ACL,
ExACL, CAR, NetFlow, and Multicast with incorporated MDRR, WRED and backpressure congestion
avoidance mechanism. This line card brings enhanced Layer 3 processing and high bandwidth ATM
capabilities to the Cisco 12000 series router.
In addition, the 4-port ISE ATM line cards provide Layer 2 AToM tunneling with cell relay and cell
packing on VCs, VPs, and interfaces; ATM traffic shaping and policing; and Layer 2 and Layer 3
configurations on the same port.
The line cards consist of two boards: a generic IP services engine motherboard that contains the Engine 3
chip set and fabric interface and a physical layer interface module (PLIM)-specific card providing the
four optic interfaces.
ATM Line Card Installation and Configuration
shows the single-mode, intermediate-range 8-port OC-3c/STM-1 ATM line card.
8-port OC-3c/STM-1 ATM Line Card
CLASS 1 LASER PRODUCT
LASERPRODUKT DER KLASSE 1
PRODUIT LASER DE CLASSE 1
PRODUCTO LASER CLASE 1
8OC-3/STM-1 ATM/TS IR-SC