Software Increment Release Notes
================================
Increment ID:   I37A1800
Release:        AN1800
Date created:   5-30-2003
Increment Type: TDM

Title: TDM: MLC failures during Protection Switching Activities
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Following is a list of issues addressed in this Increment. See below
for more details.
1. MLC failures during Protection Switching Activities
2. TDM901 LOG: Invalid D-link address 0
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1. MLC failures during Protection Switching Activities
* Description: Primary optic protection switching may cause the 
UE9000 to momentarily fail Multiple-circuit Line Card (MLC) circuit 
packs.
* Pre-Increment Impact and work-around: Tests have shown that action
is not required by the customer to restore service to the impacted 
lines. However, under adverse conditions (such as several UE9000 shelves 
reporting multiple MLC failures) a more controlled recovery may speed
overall system return to service. This can be accomplished by taking
all the UE9000 shelves in trouble offline, and allowing each to recover
in a serial fashion.
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2. TDM901 LOG: Invalid D-link address 0
* Description: During normal operation on the UE9000 shelves, the ABM 
would periodically generate a TBM901 log with the text "Invalid D-link 
Address 0" in the log. 
* Pre-Increment Impact and work-around: There is no adverse affect to 
this log, it should be considered as a nuisance log only. 
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Increments Needed:
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Increments I01A1800 through I36A1800 need to be successfully applied
prior to application of this increment.

Loads Affected:
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After successful application of this increment, the TDM load will be:
ANTDM18BZ

Special Instructions:
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None.

Installation Instructions:
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Please refer to the Incremental Software Delivery Users Guide for
general installation instructions. This document may be obtained from
either the AccessWeb ISD web site located on the Zhone web page at
(http://www.zhone.com/support/patches/index.html), or you may request
document 830-00374-01 from your Zhone Technologies Account Manager or
Order Manager. Issues with this increment should be directed to
Zhone Global Services and Support at 1-877-ZHONE-20 (1-877-946-6320).