Data Sheet

Cisco MGX 8850 PXM-45
Processor Switch Module

The Cisco MGX^™ 8850 PXM-45 Processor Switch Module for the Cisco MGX 8850 IP + ATM Multiservice Switch is a combination ATM switching fabric and processor card. The switching fabric provides 45 Gbps of nonblocking switching capacity, while the processor provides the control plane that delivers IP+ATM networking software, diagnostics, and performance monitoring.

Key Features

• 45-Gbps nonblocking switching
  
  
• Hot card insertion/removal
  
  
• 1:1 hot-standby redundancy
  
  
• User-selectable primary and secondary clock sources with graceful switchover
  
  
• Internal Stratum-3, external building integration timing supply (BITS), or inband clock sources
  
  
• Inband or out-of-band management via EIA/TIA-232 or 10BaseT control ports
  
  
• Support for narrow- and broadband service modules scaling from DS0 to OC-48c/STM-16
  
  

Figure 1: Cisco MGX 8850 PXM-45 Processor Switch Module

Technical Specifications

• Resides in slots 7 or 8 of the Cisco MGX 8850
  
  
• Supports hot insertion and removal
  
  
• Supports 1:1 hot-standby redundancy
  
  
• Offers R5000 MIPS CPU
  
  
• Offers 45 Gbps worth of nonblocking switching
  
  
• Provides full environmental monitoring of cabinet temperature, cooling-fan speeds, and power-supply voltages
  
  
• Provides four LED indicators
  
  
  • Card status
    
    
  • Critical/major/minor network alarms
    
    
  • LAN control port activity detect
    
    
  • DC-power status
    
    

Supports two back cards:

• Upper back card supports the following functions:
  
  

  User and management interfaces

• EIA/TIA-232 control port
  
  
• EIA/TIA-232 maintenance port
  
  
• 10BaseT Ethernet port
  
  

  Network synchronization for the shelf

• T1/E1 BITS synchronization port
  
  
• Stratum-3 clocking
  
  
• Conformance to ATT Pub. 624.11
  
  

  Central Office—compatible critical/major/minor alarm interface

• DB-15 connector
  
  
• Major alarm audio
  
  
• Critical alarm visual
  
  
• Minor alarm audio
  
  
• Minor alarm visual
  
  

• Lower back card supports the following functions:
  
  
  • Hard drive
    
    

Intelligent Quality-of-Service Management Suite

Connection Management

• Automatic end-to-end soft permanent virtual circuits/permanent virtual paths (PVCs/PVPs) using Private Network-Network Interface (PNNI)
  
  
• Deterministically allocates bandwidth and reroutes virtual circuits/virtual paths (VCs/VPs) autonomously over optimum network paths
  
  
• Preserves service integrity during network failures
  
  
• Path and connection tracing
  
  

Advanced CoS Management

• Up to 16 class-of-service (CoS) queues, with independent service algorithms dedicated to each interface in the network
  
  
• Quality of service (QoS)-based routing
  
  

Switched Virtual Circuits

• Signaling protocol per ATM Forum UNI Specifications V.3.0, V.3.1.
  
  
• E.164/AESA addressing
  
  
• ATM Forum PNNI Specification V.1.0
  
  
• ATM Forum IISP specification
  
  

Network Management

• Network/element management using Cisco WAN Manager software
  
  
• CiscoView for equipment management
  
  
• Simple Network Management Protocol (SNMP) support for configuration and statistics collection
  
  
• Support for robust traps
  
  
• Graphical user interface
  
  
• Standards-based interfaces for integration into other higher-layer operations systems
  
  

Physical Specifications

• Dimensions: (H x D) 15.83 x 15.65 in.
  
  

Electrical Specifications

• Input power required: (48 VDC
  
  
• Power consumption: 150W
  
  

Electrical and Safety Standards Compliance

• EMI/ESD compliance
  
  
  • FCC Part 15
    
    
  • Bellcore GR1089-CORE
    
    
  • IEC 801-2
    
    
  • EN55022
    
    
• Safety compliance
  
  
  • EN 60950
    
    
  • UL 1950
    
    
• Bellcore NEBS: Level 3 compliant
  
  
• Optical safety: IEC 825-1 (Class 1)