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fixed structure

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Jeff Hill
2004-01-27 18:43:44 +00:00
parent a9abc6ee1c
commit 5bd8fe9148
1 changed files with 14 additions and 20 deletions
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src/ca/CAref.html
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@@ -1185,28 +1185,22 @@ setup and teardown overhead.</p>
<p>A well known negative side effect is that R3.14.5 CA clients will wait the
full (typically long) duration of TCP/IP's internal keep alive timer prior to
reconnecting under the following two scenarios:</p>
<ol>
<li>A vxWorks IOC is stopped and then reboots with a different IP
reconnecting under the following scenario (all of the following occur):</p>
<ul>
<li>An IOC's operating system crashes (or is abruptly turned off) or a
vxWorks system is stopped by any means</li>
<li>This operating system does not immediately reboot using the same IP
address</li>
<li>A duplicate of the IOC is started appearing at a different IP
address</li>
<li>All of the following occur:
<ul>
<li>An IOC's operating system crashes (or is abruptly turned off) or a
vxWorks system is stopped by any means</li>
<li>This operating system does not immediately reboot using the same IP
address</li>
<li>A duplicate of the IOC is started with a different IP address</li>
</ul>
</li>
</ol>
</ul>
<p>It is unlikely that any rational organization will advocate changing the
IP address of a server while the system is operational. Nevertheless, this
<em>is</em> undoubtedly a negative side effect because there are substantive
opportunities for users to become confused during control system development,
but it is felt that the improvements in operational system robustness justify
the confusion resulting in the small number of situations where the above
scenarios occur.</p>
<p>It is unlikely that any rational organization will advocate the above
scenario while the system is operational. Nevertheless, this <em>is</em>
undoubtedly a negative side effect because there are opportunities for users
to become confused during control system development, but it is felt that the
improvements in operational system robustness justify the confusion resulting
in the small number of situations where the above scenarios occur.</p>
<h3><a name="Problems">ENOBUFS Messages</a></h3>