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AXP1620 Installation and Use (6806800E23E)
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Platform Architecture
1.1
Description
The versatile, highly available AXP1620 is designed as an open standard platform on which to
run applications in the Telecom Central Office environments. The AXP1620 combines existing
PICMG standards featuring high speed serial data fabrics. These standards serve to streamline
the architecture by eliminating the overhead of bridging, increasing payload, and eliminating the
need for system and nonsystem slot blades. This is accomplished by using the Intelligent
Platform Management Interface (IPMI) and dual Ethernet star network which allows for
communication between all node blades using Ethernet.
The AXP1620 is a high-availability platform with special locations for Shelf Management Alarm
Module (SAMs) and sixteen 8U x 280mm slots, sixteen 8U x 70mm rear transition modules, Fan
Tray Modules, (FTMs), and Power Entry Modules (PEMs).
1.2
PICMG Compliance
The AXP1620 is designed to be compliant with PCI Industrial Computers Manufacturer’s Group
(PICMG) specifications 3.0 and 3.1, and also provides support for PICMG 1.5.1 IPMI bus for
system management.
1.3
Shelf Topology
Topology refers to the shape of a network, or the network's physical layout. The way that
different nodes in a network are connected to each other and how they communicate are
determined by the network's topology.
The backplane of the AXP1620 uses a dual star topology that supports two independent
networks. The dual star uses a point-to-point configuration with redundancy added for reliability.
All devices on a star network are connected to a central connection point (hub). Nodes
communicate across the network by passing data through the hub slot, which on the AXP1620
contains a switching function that forwards packets to the appropriate port based on the
packet's address. Switching hubs support traditional Ethernet (10 Mbps), Fast Ethernet (100
Mbps), and Gigabit Ethernet (1000 Mbps) ports.
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