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
Line Type : sonetSts12c Number of SPVC : 0
Medium Type(SONET/SDH) : SONET Number of SVC : 4
Medium Time Elapsed : 248198
Medium Valid Intervals : 96
Medium Line Type : ShortSMF
Establishing Redundancy Between Two Lines with APS
The switch supports two types of line redundancy:
• Intracard redundancy, where the working and protection lines are connected to the same card
• Intercard redundancy, where the working line is connected to the primary card, and the protection
line is connected to the secondary card
The following sections describe how to add redundancy for these types of APS lines.
Adding Intracard APS Lines
To establish redundancy between two lines on the same card, use the following procedure.
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 “Bringing Up Lines”
section, which appears earlier in this chapter.
Step 3 Enter the addapsln command as follows:
pop20two.1.AXSM.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 intracard redundancy, the working index and protection index must specify ports on the same
card, so the slot number will always match.
Table 3-5 dspln Command Parameters
Parameter Description
type The parameter specifies the type of line that is connected to the switch. Replace
<type> with -sonet or -ds3. The -ds3 option works for DS3 and E3 lines.
bay Replace <bay> with 1 if the line is connected to a back card in the upper bay, or
replace it with 2 if the line is connected to a back card in the lower bay.
line Replace <line> with the number that corresponds to the back card port to which the
line is connected. Table 3-3 lists the valid line numbers for each AXSM card.