5-22
Cisco BPX 8600 Series Installation and Configuration
Release 9.3.30, Part Number 78-12907-01 Rev. E0, May 2005
Chapter 5 BXM Card Sets: T3/E3, 155, and 622
BXM Functional Description
Figure 5-11 BXM APS Redundant Frame Assembly
BXM Functional Description
This functional description provides an overview of BXM operation.
Operation in Port (UNI/NNI) Mode
This section is an overview of operation when a BXM card port is configured in port (access) mode for
connection to customer equipment.
The ingress flow of ATM cells from CPE into a BXM port when the card is configured for port (access)
operation is shown in Figure 5-12.
ATM cells from the customer premise equipment are:
•
Processed at the physical interface level by the SUNI (OC-3/OC-12) or Mux/Demux (T3/E3).
•
Policed per individual VC by the RCMP.
•
Routed to applicable ingress queues.
•
Served out through the BPX backplane to the BPX crosspoint switch in an order of priority based
on their connection type.
22902
Nylon standoffs
Nylon standoffs
APS redundant
backplane
connector
Summary of Contents for BPX 8650
Page 49: ...P A R T 1 The BPX Switch ...
Page 50: ......
Page 159: ...P A R T 2 Installation ...
Page 160: ......
Page 273: ...P A R T 3 Initial Configuration and Network Management ...
Page 274: ......
Page 311: ...P A R T 4 Configuring Connections ...
Page 312: ......
Page 487: ...P A R T 5 Troubleshooting and Maintenance ...
Page 488: ......
Page 533: ...P A R T 6 BPX Specifications ...
Page 534: ......
Page 555: ...P A R T 7 Appendices ...
Page 556: ......