Configuring Aps 1:1; Aps 1 +1 Annex B Card And Line Redundancy; General Criteria; Configuring Aps 1+1 Annex B - Cisco BPX-BXM-155-8DX Installation And Configuration Manual

APS 1 +1 Annex B Card and Line Redundancy

The user may add APS as long as the working and protection line are in the standby state. Lines and
trunks can only be upped after APS 1:1 is added.

Configuring APS 1:1

This is an example of configuring APS 1:1 redundancy:
Before configuring for APS 1:1 redundancy, all card connections must be deleted using
Note
the delcon command
Ensure that lines are connected, for example on ports 1 and 2 of a BXM in slot 3.
Step 1
Note
Execute cnfcdaps and verify chan half= yes (not default), and standard= GR-253 (default)
Step 2
cnfcdaps 3.1 Y 1
Step 3 addapsln 3.1 3.2 2
Step 4 upln 3.1
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 non-revertive
switching.

General Criteria

APS 1 + 1 Annex B can be configured only for bi-directional operation and non-revertive switching on
a line.
In non-revertive switching, to avoid data loss, a line is not automatically switched back to
Note
active after a failure is corrected.

Configuring APS 1+1 Annex B

The following is an example of configuring APS 1+1 redundancy:
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.
Cisco BPX 8600 Series Installation and Configuration
26-12
The last entry, "2", in the addapsln command specifies the type of APS, in this
example APS 1:1.
{addapsln<slot.port> <slot.port> <1|2|3|4|5>
{or uptrk, as applicable
Chapter 26 Configuring SONET Automatic Protection System
Release 9.3.0, Part Number 78-10674-01 Rev. D0, July 2001