<div>Folks,<br> I am running Tahi scripts for RFC 4862: IPv6 St=
ateless Address Autoconfiguration for our product which has IPv6 support.</=
div>
<div>Facing an issue with the following testcase and description is as=
follows:</div>
<div><br><strong>Test Case:</strong> "Test v6LC.3.2.3: Multiple P=
refixes and Network Renumbering (Hosts only) "</div>
<div><strong>Problem:</strong> Inconsitant behaviour (Test case passes=
some time and some time it fails)<br><br><strong>Test case passes for foll=
owing Sequence:<br></strong>1. Two Router advertisement is sent with prefix=
es p1 and p2.<br>
2. DAD NS is received from NUT for both the addresses (A1 and A2) that are<=
br>formed using the prefixes (P1 and P2) got in RA.<br>3. Tahi waits for 5 =
Sec.<br>4. Solicited NS is sent from TN to NUT for both addresses.<br>5. NA=
's are received from NUT.<br>
<font color="#ff0000"><strong>6. Tahi script waits for 16 Sec<br></strong=
></font>7. Solicited NS is sent from TN to NUT for both addresses (A1 and A=
2).<br>8. NA is sent for address "A2" and address "A1" =
is deleted.<br>
<font color="#ff0000"><strong>9. Tahi script waits for 5 sec.<br></strong=
></font>10. Solicited NS is sent from TN to NUT for address A2.<br>11=
. No NA is received because address A2 is deleted from NUT.<br><br><strong>=
Test case fails for following two sequences:<br>
Sequence 1:</strong><br>1. Two Router advertisement is sent with prefixes p=
1 and p2.<br>2. DAD NS is received from NUT for both the addresses (A1 and =
A2) that are<br>formed using the prefixes (P1 and P2) got in RA.<br>3. Tahi=
waits for 5 Sec.<br>
4. Solicited NS is sent from TN to NUT for both addresses.<br>5. NA's a=
re received from NUT.<br><font color="#ff6666"><font color="#ff0000"><s=
trong>6. Tahi waits for 15 Sec</strong></font><br></font>7. Solicited NS is=
sent from TN to NUT for both addresses (A1 and A2).<br>
8. NA is sent for address "A2" and address "A1" is dele=
ted.<br><font color="#ff0000"><strong>9. Tahi waits for 5 sec.</strong></=
font><br>10. Solicited NS is sent from TN to NUT for address A2.<br>1=
1. NA is received because address A2 is not yet deleted from NUT.<br>
<br><strong>Sequence 2:</strong><br>1. Two Router advertisement is sent wit=
h prefixes p1 and p2.<br>2. DAD NS is received from NUT for both the addres=
ses (A1 and A2) that are<br>formed using the prefixes (P1 and P2) got in RA=
.<br>
3. Tahi waits for 5 Sec.<br>4. Solicited NS is sent from TN to NUT for both=
addresses.<br>5. NA's are received from NUT.<br><font color="#ff0000=
"><strong>6. Tahi waits for 16 Sec<br></strong></font>7. Solicited NS is se=
nt from TN to NUT for both addresses (A1 and A2).<br>
8. NA is sent for address "A2" and address "A1" is dele=
ted.<br><font color="#ff0000"><strong>9. Tahi waits for 4 sec.</strong></=
font><br>10. Solicited NS is sent from TN to NUT for address A2.<br>1=
1. NA is received because address A2 is not yet deleted from NUT.<br>
<br><strong>Note:</strong> The differences seen in the test execution for f=
ailure and success case is marked in red.<br><br>Because of the timing issu=
e, Test case is failed. Please clarify...</div>
<div><br>Q1. What is the condition for tahi scripts to wait for 1=
6 and 5 sec? <br>Q2. Is this inconsistant behabiour of Tahi=
script is expected? </div>
<div><br>Test Setup Details:</div>
<div> 1. IPv6 Conformance Self test version: Self_test_4.=
0.4<br> 2. IPv6 Conformance test tool version: v6eval-3.1.0<br=
><br>Also i faced the same problem in Self_test_4.0.3, are there any known =
issues with this script. </div>
<div> </div>
<div>Kindly update with your valuable inputs ASAP...<br><br><strong>Thank Y=
ou and Regards,<br>Shobha</strong></div>