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Cisco MGX 8800/8900 Series Hardware Installation Guide
Releases 2 - 5.2, Part Number OL-4545-01, Rev. H0, May 2006
Chapter 1 Product Overviews
Cisco MGX 8850 and MGX 8850/B Switches
Features
Table 1-4 lists supported features for the Cisco MGX 8850 and MGX 8850/B switches.
The MGX 8850 or MGX 8850/B switch:
• Can use either an AC or a DC power source
• Is shipped in one of two configurations:
–
Cisco cabinet configuration—All components are shipped preinstalled in a Cisco cabinet.
–
Open rack configuration—Individual components are shipped ready for installation in a
customer-supplied open rack or a third-party vendor cabinet.
• Fits in a 19-inch or a 23-inch rack
MGX 8850 (PXM1E) and MGX 8850/B (PXM1E) Switch Overview
The PXM1E is a PNNI-enabled, double-height switch controller card that provides switching
capabilities for use at the ATM network edge.
Service modules support communications between non-ATM services (such as Frame Relay and IP) and
the ATM services on an ATM network. All network communications or customer traffic in and out of the
switch goes through the service modules and route processor modules (RPMs). When a service module
or RPM is combined with one or two back cards, a card set is created.
The MGX 8850 (PXM1E) and MGX 8850/B (PXM1E) switches support the following module types:
• ATM User-to-Network Interface (UNI) service module (AUSM)—Single-height front card
• Circuit emulation service module (CESM)—single-height front card
Table 1-4 Cisco MGX 8850 (PXM1E/PXM45) Switch Features
Feature
MGX 8850 (PXM1E)
MGX 8850/B (PXM1E)
MGX 8850 (PXM45)
MGX 8850/B (PXM45)
Services:
• ATM
• Circuit emulation
• Frame Relay
• IP
• Voi ce
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Maximum throughput 1.2 Gbps 45 Gbps
Supports bulk distribution Yes, module dependent Yes, module dependent
Supports card set redundancy Yes, module dependent Yes, module dependent
Supports 1:N redundancy
1
1. MGX 8850/B models only.
Yes, module dependent Yes, module dependent
Supports APS line
redundancy
2
2. See Table 4-4 on page 4-19 for APS connector options and requirements.
Yes, module dependent Yes, module dependent