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Cisco ONS 15300 Series

Field Notice: FN - 63053 - CTC - Bridge and Roll at STS and VT Levels May Not Complete Correctly

Cisco - Field Notice: FN - 63053 - CTC - Bridge and Roll at STS and VT Levels May Not Complete Correctly

Revised April 10, 2008
April 7, 2008


NOTICE:

THIS FIELD NOTICE IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTY OF MERCHANTABILITY. YOUR USE OF THE INFORMATION ON THE FIELD NOTICE OR MATERIALS LINKED FROM THE FIELD NOTICE IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS FIELD NOTICE AT ANY TIME.

Revision History

Revision Date Comment
1.1 10-APR-2008 Added CTC to Title, Updated Products Affected Table
1.0 07-APR-2008 Initial Public Release

Products Affected

Products Affected
Comments
15310CL - 15310CL
Releases 6.0, 6.x, 6.0x, 7.x, 7.0x, 7.2x, 8.0x, 8.5
15310MA - 15310MA
Releases 7.x, 7.0x, 7.2x, 8.0x, 8.5
15327 - 15327
Releases 6.0, 6.x, 6.0x, 7.x, 7.2x, 7.0x
15454 - 15454
Releases 6.0, 6.x, 6.0x, 7.x, 7.0x, 7.2x, 8.0x, 8.5
15454SDH - 15454SDH
Releases 6.0, 6.x, 6.0x, 7.x, 7.0x, 7.2x, 8.0x, 8.5

Problem Description

***** The following releases for each product family listed above are associated with this Field Notice 6.0,6.x,6.0x,7.x,7.0x,8.0x,8.5 (15310MA started in 7.0 and 15327 stopped in7.2x)*****

The database can become corrupted when a Bridge and Roll STS or VT circuit is in a hung state.

Background

This problem only occurs when using the CTC to perform Bridge and Roll (B&R) operations.
When performing VT Bridge and Rolls, when all VT circuits in a STS have been “Completed” and only a subset of those VT circuits are then put through the final step of “Finish”, the remaining VT circuits in the STS will be in a hung VT B&R condition.
Attempts to complete may result in an error message being displayed.
This problem may also occur when attempting to perform a “FINISH” operation on a large number of the VT circuits in an STS and the CTC is disconnected from the node during the operation.
Any subsequent reset of the Active Shelf Controller will result in the loss of the database.
When performing a STS Bridge and Roll, after issuing the “Complete” on STS circuits from a line card and then issuing a DELETE of the line card that held the roll-from-paths before performing the “Finish” on the STSs will result in a hung STS B&R condition.
On using a multi-rate card such as the MRC-12, the same hung Bridge and Roll STS circuit can occur if you delete the Port or PPM for the roll-from-paths that have not been “Finished”.
Any subsequent reset of the Active Shelf Controller will result in the loss of the database.

Problem Symptoms

Error messages on attempts to “Finish” the Bridge and Rolls that are in the hung state. After a CTC re-launch, the symptom is as follows: In the Circuits Pane, any circuit that is in the B&R hung state will have ROLL_PENDING in the status column on the Circuit tab and on the Rolls tab the circuit will not be present. Examples below:
See Below the Circuit Tab with a ROLL_PENDING in the Status.

See Below the Rolls Tab with no entry for the circuit that has the ROLL_PENDING status.

Workaround/Solution

Workaround - Use TL1 commands for VT Bridge and Roll operations. It is recommended that bridge and roll operations be performed on a per circuit basis if using the CTC.
For the STS Bridge and Roll issue, do not DELETE the Line Card, Port, or PPM object until all circuits on the entity has gone through the “Finish” on the Bridge and Roll sequence.

Please contact the Support Centers for additional assistance.

Note: B&R using TL1 is not affected.

DDTS

To follow the bug ID link below and see detailed bug information, you must be a registered customer and you must be logged in.

DDTS Description
CSCsk95390 (registered customers only) Database corrupted after CTC VT Bridge & Roll operation, (resolved in 8.5.1)
CSCsm85843 (registered customers only) Hung Bridge & Roll STS Circuit causes DB deleteion on reboot.

For More Information

If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:

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