Specifications

7-22
Cisco MGX 8850 (PXM45) and MGX 8950 Software Configuration Guide
Release 3, Part Number 78-14788-01 Rev. C0, January 2004
Chapter 7 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:
M8850_LA.1.AXSM.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
switchOption The method of performing the switchover.
• 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.
Table 7-5 switchapsln Command Parameters (continued)
Parameter Description