Juniper-networks M20 Manual do Utilizador descarregar pdf (Página 10)

ATM OC3 PIC

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JUNOS 3.1 and laterSoftware release

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Two OC3 ports

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Power requirement: 0.49 A @ 48 V (23.7 W)

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Conforms to ANSI T1.105-1991 and T1E1.2/93-020R1

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ATM and SONET/SDH standards compliant

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Alarm and event counting and detection

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Compatible with well-known ATM switches

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ATM switch ID, which displays the switch IP address and local interface name of the

adjacent Fore ATM switches

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Optical interface support—see Table 2 on page 11

Description

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Dual 3010 SAR for segmentation and reassembly into 53-byte ATM cells

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High-performance parsing of SONET/SDH frames

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OAM fault management processes Alarm Indication Signal (AIS) and Remote Defect

Indicator (RDI) cells

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ASIC-based packet segmentation and reassembly (SAR) management and output port

queuing

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16-MB SDRAM memory for ATM SAR

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Packet buffering, Layer 2 parsing

Hardware features

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Multiprotocol Label Switching (MPLS) circuit cross-connect (CCC) for leveraging ATM

access networks

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Support for user-configurable virtual circuits (VC) and virtual paths (VP)

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ATM Inverse Address Resolution Protocol (ARP), which enables routers to automatically

learn the IP address of the router on the far end of an ATM permanent virtual circuit

(PVC)

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Unspecified bit rate (UBR) traffic shaping

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Fine-grained variable bit rate (VBR) traffic shaping

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Outbound PIC queues cells on a per-VC basis

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Encapsulations—AAL5 subnetwork attachment point (SNAP)

Software features

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Duplex SC/PC connector (RX and TX)Cables and connectors

10 ■ ATM OC3 PIC

M20 Internet Router PIC Guide: End-of-Life PICs

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