Specifications

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Cisco MGX 8850 (PXM45) and MGX 8950 Software Configuration Guide
Release 3, Part Number 78-14788-01 Rev. C0, January 2004
Chapter 3 Preparing AXSM Cards and Lines for Communication
Establishing Redundancy Between Two Lines with APS
Adding Intercard APS Lines
To establish redundancy between two lines on different cards, use the following procedure.
Note For intercard APS to operate properly, an APS connector must be installed between the two cards. For
more information in the APS connector and how to install it, refer to either the
Cisco MGX 8850 Hardware Installation Guide (PXM45/B and PXM1E) or the
Cisco MGX 8950 Hardware Installation Guide.
Note APS is not supported on AXSM-1-2488/B cards. For the AXSM-16-155/B and AXSM-4-622/B front
cards, you must use /B version back cards. You can use an AXSM front card and back card in one slot
and configure redundancy with an AXSM/B front card and AXSM/B back card in another slot. The
switch supports APS when the front and back cards are the same revision.
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, add card redundancy as described in the “Establishing Redundancy
Between Two AXSM Cards” section.
Step 3 If you have not done so already, bring up the working and protection lines as described in “Bringing Up
Lines.”
Step 4 Verify that an APS connector is installed between the cards that host the working and protection lines
by entering the dspapsbkplane command.
Step 5 Enter the addapsln command as follows:
pop20one.7.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 the line on card 2, bay 1, line 2, enter 2.1.2.
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 ports 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.
Table 3-6 shows the option numbers and the types of redundancy they select.
In the following example, 1+1 APS redundancy is assigned to lines on two different cards:
pop20one.1.AXSM.a > addapsln 1.1.2 2.1.2 1