Cisco BPX 8650, Installation And Configuration Manual

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Cisco BPX 8600 Series Installation and Configuration
Release 9.3.30, Part Number 78-12907-01 Rev. E0, May 2005
Chapter 25 Configuring SONET Automatic Protection System
APS 1 +1 Annex B Card and Line Redundancy
Step 2
Execute cnfcdaps and verify chan half= yes (not default), and standard= GR-253 (default)
cnfcdaps 3.1 Y 1
Step 3
addapsln 3.1 3.2 2 { addapsln <slot.port> <slot.port> <1|2|3|4|5>
Step 4
upln 3.1 {or uptrk , as applicable
APS 1 +1 Annex B Card and Line Redundancy
The APS 1 +1 Annex B feature is similar to the APS 1+1 feature, with the main difference being that
APS 1+1 Annex B redundancy only can be configured for bi-directional operation and nonrevertive
switching.
General Criteria
APS 1 + 1 Annex B can be configured only for bidirectional operation and nonrevertive switching on a
line.
Note
In nonrevertive switching, to avoid data loss, a line is not automatically switched back to active after
a failure is corrected.
Configuring APS 1+1 Annex B
To configure APS 1+1 redundancy, use the following procedure:
Step 1 Verify that appropriate front and back cards are installed along with APS two-card daughterboard.
Step 2
Ensure that lines are connected, for example port 1 on BXM in slot 1 and port 1 on BXM in slot 2.
Step 3 Execute the following commands and verify chan half= no, and standard= GR-253 (default):
cnfcdaps 1.1 N 1
cnfcdaps 2.1 N 1
Step 4
Execute the following command, for example, for redundant line on port 1 for BXM OC-3 cards and
APS back cards in slots 1 and 2 of the BPX:
addcdred 1 2
Step 5
addapsln 1.1 2.1 3 { addapsln <slot.port> <slot.port> <1|2|3|..>
Note
The last entry, “3”, in the addapsln specifies the type of APS, in this example APS 1 + 1,
Annex B.
Step 6
cnfapsln 1.1
Step 7
upln 1.1 {or uptrunk , as applicable