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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 3 Provisioning PXM1E Communication Links
General PXM1E Configuration Procedures
•
The working line must be defined on the primary card, and the protection line must be defined on
the secondary card. The primary and secondary cards are predefined for PXM1E. In an MGX 8830
switch, slot 1 hosts the primary card and slot 2 hosts the secondary card. In an MGX 8850 (PXM1E)
switch, slot 7 hosts the primary card and slot 8 hosts the secondary card.
•
The working line and protection line numbers must be identical for intercard APS configurations.
For example, you can assign the working line to line 9 on a primary PXM1E-COMBO card and the
protection line to line 9 on a secondary card. You cannot assign the working line to line 9 on one
card and the protection line to line 10 on the other.
•
The switches at both ends of the APS lines must be configured for APS, and the role of each line
(working or protection) must be the same at both ends of the line.
To establish redundancy between two lines on different cards, use the following procedure.
Note
For intercard APS to operate properly, an APS connector may need to be installed between the two cards.
For more information on APS connector requirements and how to install them, refer to the Cisco MGX
8850 (PXM1E/PXM45), Cisco MGX 8950, Cisco MGX 8830, and Cisco MGX 8880 Hardware
Installation Guide, Releases 2 Through 5.
Step 1
Establish a configuration session using a user name with GROUP1_GP privileges or higher.
Step 2
If you have not done so already, bring up the working line as described in the “
”
section.
Step 3
Ensure that the cards you are working on are functioning as a redundant pair.
Step 4
If an APS connector is required for your configuration, enter the dspapsbkplane command on both the
standby and active cards to verify that the APS connector is installed properly.
Note
This command can show different values for each of the two cards, which indicates the APS
connector is seated properly on one card, but not on the other.
Step 5
Enter the addapsln command as follows:
mgx8830b.2.PXM.a >
addapsln
<
workingIndex
> <
protectIndex
> <
archmode
>
Replace <workingIndex> with the location of the working line using the format slot.bay.line. For
example, to specify line 1 on the card in slot 2 of the lower bay, enter 2.2.1.
Replace <protectIndex> with the location of the protection line, using the same format used for the
working line.
Note
For intercard redundancy, the working index and protection index must specify the same line
numbers on different cards. Also, the working line index must identify a line on the primary card.
Replace <archmode> with an option number that defines the type of line redundancy you want to use.
shows the option numbers and the types of redundancy they select.
The following example assigns 1+1 APS redundancy to lines on different cards:
mgx8830b.2.PXM.a >
addapsln 1.2.2 2.2.2 1
Step 6
To display a list of all the APS lines on an PXM1E card, enter the dspapslns command.
