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Cisco MGX 8850 Multiservice Switch Installation and Configuration
Release 1.1.31, Part Number 78-11223-03 Rev. B0, May 2005
Chapter 6 Card and Service Configuration
Processor Switching Module
Figure 6-1 Frame Relay Connection Through an MGX 8850-BPX 8600 Series Network
Processor Switching Module
This section describes how to activate and configure the card-level parameters, lines, and ports on the
PXM1 uplink card.
This section also describes how to add connections to the PXM1 in a stand-alone node.
The descriptions include instructions to complete the following tasks:
• Modify the resource partitioning at the card level (optional).
• Activate a line on the uplink card. On a stand-alone node, you can activate more than one line if the
uplink card has multiple lines. One physical line must be the trunk to a network routing node.
• Optionally configure a clock source on the PXM1 or a service module. Note that a service module
line must be active before you can configure it as a clock source. See the “Configuring
Synchronization for the Shelf” section on page 6-6 for more information.
• If the shelf has a pair of SRMs for bulk distribution and you use the CLI rather than the CiscoView
application, activate the SRM lines from the PXM1.
• Optionally modify the resource partitioning at the port level.
• Create logical ports.
• On a stand-alone node, specify the cell header type. UNI cell headers typically apply where a
workstation connects to a UNI port on the uplink card rather than a port on the PXM1-UI card. Such
an implementation is not common.
• On a stand-alone node, add standard connections and optional management connections.
• On a stand-alone node, configure Automatic Protection Switching (APS).
• For a feeder, execute steps on the connected BPX 8600 series switch to make the feeder an available
resource in the network.
Note For a description of the bit error rate test (BERT) functions, see the “Bit Error Rate Testing Through
an MGX-SRM-3T3” section on page 6-63.
BPX 8620
Backbone
Network
BPX
8620
F
R
S
M
Port
T1
Channel
A
A
BPX
8620
F
R
S
M
Port
T1
Channel
B
B
Customer Equipment
to BPX 8620
Customer Equipment
to BPX 8620
BPX 8620 to BPX 8620
BXM-8-155
BXM-8-155
17910
MGX
8850
MGX
8850