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Port Type Replacement Problem in the Case of BPS

Publication Date:  2012-07-25 Views:  48 Downloads:  0
Issue Description
After BPS protection is configured, replace the ports of the logical standby board. Reset the logical standby board before replacing the ports of the logical active board. When the logical standby board starts up, the types of the ports on the logical standby board are inconsistent with the types of the ports on the physical standby board. 
Alarm Information
Null 
Handling Process
1. Replace the port types of the logical active board.
2. Replace the port types of the logical standby board.
For example:
Notes on slots: Slots 1�2 house the TN11TBE boards, whose IP4 ports are white GE optical interfaces.
Problem introduction:
1. Configure the boards housed in slots 1�2 in a BPS protection group. Slot 1 houses the logical active board and slot 2 houses the logical standby board.
2. Replace the type of IP4 logical port of the board housed in slot 2 with the colored GE port type. Then, replace the physical optical module of IP4 port of the board housed in slot 2 with a colored GE optical module. As a result, the board housed in slot 2 is reset.
3. When the board housed in slot 2 starts up after the reset, IP4 port of the board housed in slot 2 reports the alarm, indicating that the types of the logical and physical ports are inconsistent.

Problem solution:
1. Replace the type of IP4 logical port of the board housed in slot 1 with the colored GE port type. Then, replace the physical optical module of IP4 port of the board housed in slot 1 with a colored GE optical module.
2. Replace the logical port type of IP4 port of the board housed in slot 2 with the colored GE port type. 
 
Root Cause
The BPS protection depends on the configuration of the logical active board. When starting up after the reset, the logical standby board synchronizes the configuration with the logical active board. The ports types of the logical standby board are replaced by the port types of the physical standby board. The physical ports of the logical standby board, however, are replaced. As a result, the logical port types are inconsistent with the physical port types. 
Suggestions
Null 

END