Справочник Пользователя для Avaya M770
Chapter 1
Introduction
Avaya M770 ATM Switch User’s Guide
3
Features List
Hardware Features
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Dual 40 Gbps passive backplane switch
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Low Cell Transfer Delay through the switch is 20 µsec (in port to out port)
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Low Cell Delay Variation through the switch is 5 µsec (in port to out port)
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Clock Synchronization (Generation/Propagation) of clock to all other ports
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Supports CBR, VBR-rt, VBR-nrt, ABR, UBR Classes of Service
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Supports AAL1, AAL2, AAL3/4 and AAL5 classes
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Cell Loss Priority (CLP) discard
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Early Packet Discard (EPD) and Partial Packet Discard (PPD) for AAL5
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ABR with EFCI Tagging
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Hot swapping of modules
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Line Indication LEDs: Link (LNK), Transmit (Tx), Receive (Rx), Loss of Signal
(LOS), Remote Defect Indicator (RDI)
(LOS), Remote Defect Indicator (RDI)
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Idt R4650 (100 MIPS) RISC processor, 32M RAM and 4M Flash on each module
for fast call set up and protocol processing
for fast call set up and protocol processing
M15-155F/SF/MS module features
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32K cells per slot output buffers
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16K cells per slot input buffers
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120K Virtual Channels per module
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32K Virtual Channels per port
M3-622F/SF module features
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32K cells per slot output buffers
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16K cells per slot input buffers
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168K Virtual Channels per module
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56K Virtual Channels per port
M4-DS3 module features
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Supports a line distance of up to 137 meters of coaxial cable
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Supports Vport (Virtual Port) traffic shaping on DS3 ports
For more information see Chapter 6, “Managing Virtual Ports“
For more information see Chapter 6, “Managing Virtual Ports“
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30K Virtual Channels per module for both Permanent and Switched Virtual
Circuits
Circuits
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16K cells per slot input buffers
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32K cells per slot output buffers
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Additional 256K cells per slot output buffers for traffic shaping