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Thus, the Cisco MGX 8220 shelf supports aggregation of traffic up to 80 T1 or E1 access ports or up
to 1240 64-Kbps subscribers, onto a single T3, E3, or OC-3c trunk, using only a single port on the Cisco
BPX switch.
Figure 1-2 shows the Cisco MGX 8220 switch relationship.
Figure 1-2
T1, E1, T3, or
Service Interface
Remote Locations
For locations with limited switching requirements, the Cisco MGX 8220 can be physically remote from
the Cisco BPX 8600 series switch using IMA trunk machines as shown in Figure 1-3.
Figure 1-3
T1, E1 or T3
Interface
Standalone Cisco MGX 8220 Edge Concentrator
The Cisco MGX 8220 edge concentrator is not limited to attachment to the Cisco BPX 8600 series
switch. In standalone operation, the Cisco MGX 8220 trunk can attach to any ATM switch to provide
service aggregation.
Service Interfaces
The Cisco MGX 8220 supports the following services and interfaces:
•
•
•
•
Release 5.0, Part Number 78-6430-03 Rev. D0, November 2003
Cisco MGX 8220/Cisco BPX Switch Relationship
HSSI/X.21
MGX 8220
Lines
Remote Cisco MGX 8220 Configuration
Long Distance
Service
MGX 8220
IMA Trunk
Lines
Frame Relay UNI/NNI
–
56 kbps, nx64 kbps, T1, E1, HSSI, X.21
–
Frame Relay to ATM network and service internetworking
High-speed Frame Relay
ATM Frame UNI
56 kbps, nx64 kbps, T1, E1, HSSI, X.21
–
ATM UNI/NNI
T1, E1, nxT1 (IMA), nxE1 (IMA)
–
BPX 8620
Broadband ATM Service
T3, E3 or SONET ATM
Feeder Connection
MGX 8220
BPX 8620
Cisco MGX 8220 Installation and Configuration
Cisco MGX 8220 System Overview
Broadband ATM Service
1-3
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Troubleshooting
