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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
Enter the dspapslns command to verify that the active line switched over from the protection line to the
working line, as shown in the following example:
mgx8830a.1.PXM.a > dspapslns
Working Prot. Conf Oper Active WLine PLine WTR Revt Conf Oper LastUser
Index Index Arch Arch Line State State (min) Dir Dir SwitchReq
------- ----- ---- ----- ------ ----- ----- ----- ---- ---- ---- ----------
1.1.1 2.1.1 1+1 1+1 working OK OK 5 Yes bi bi ManualP->W
Displaying APS Line Information
To display the APS line redundancy configuration for a PXM card, enter the dspapsln command as
described below.
Step 1 Establish a configuration session at any access level.
Step 2 To view the redundancy status, enter the following command after the switch prompt:
mgx8830a.1.PXM.a > dspapsln <working-slot.bay.line>
Table 9-5 switchapsln Command Parameters
Parameter Description
bay Working bay number to switch.
line Working line number to switch.
switchOption Method of performing the switchover. The possible methods are as follows:
• 1 = Clear previous user switchover requests. Return to working line only
if the mode is revertive.
• 2 = Lockout of protection. Prevents specified APS pair from being
switched over to the protection line. If the protection line is already
active, the switchover is made back to the working line.
• 3 = Forced working to protection line switchover. If the working line is
active, the switchover is made to the protection line unless the protection
line is locked out or in the SF condition, or if a forced switchover is
already in effect.
• 4 = Forced protection to working line switchover. If the protection line is
active, the switch is made to the working line unless a request of equal or
higher priority is in effect. This option has the same priority as option 3
(forced working to protection line switchover). Therefore, if a forced
working to protection line switchover is in effect, it must be cleared
before this option (forced protection to working line switchover) can
succeed.
• 5 = Manual switchover from working to protection line unless a request
of equal or higher priority is in effect.
• 6 = Manual switchover from protection to working line. This option is
only available in the 1+1 APS architecture.
service switch This is an optional parameter. When set to 1, this field causes all APS lines to
switch to their protected lines.
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