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Cisco MGX 8850 (PXM1E/PXM45), Cisco MGX 8950, Cisco MGX 8830, and Cisco MGX 8880 Configuration Guide
Release 5.0.10, OL-3845-01 Rev. B0, August 16, 2004
Chapter 9 Switch Operating Procedures
Managing Redundant APS Lines
The following sections describe how to
•
Prepare for Intercard APS
•
Display APS line information
•
Modify APS lines
•
Switch APS lines
•
Remove the redundancy between two lines
Note
An APS connector is required for line redundancy on SRME cards that are installed in Cisco MGX 8850
(PXM1E) switches, and for line redundancy on PXM1E-8-155 cards in Cisco MGX 8850 (PXM1E) and
Cisco MGX 8830 switches. An APS connector is not required for SRME cards that are installed in
Cisco MGX 8830 switches.
Note
You must install an APS connector and configure APS on your PXM1E-4-155 cards in order to facilitate
a future upgrade to the PXM1E-8-155 card.
Preparing for Intercard APS
The following components are required for intercard APS:
•
two front cards.
•
two back cards for every bay hosting APS lines. All lines on cards used for intercard APS must
operate in APS pairs or use Y cables.
•
an APS connector installed between the two back cards for every bay hosting APS lines.
Enter the dspapsbkplane command on both the standby and active card to verify that the APS connector
is plugged in properly. The following example shows the results displayed by the dspapsbkplane
command when the APS connector is in place:
mgx8830a.1.PXM.a >
dspapsbkplane
Line-ID Primary Card Signal Status Secondary Card Signal Status
Slot #1 Slot #2
1.1 PRESENT PRESENT
1.2 PRESENT ABSENT
2.1 PRESENT ABSENT
2.2 PRESENT ABSENT
Remote Front Card : PRESENT
Top Back Card : ENGAGED
Bottom Back Card : ENGAGED
