Brocade Communications Systems 8 Administrator's Manual page 300

20
General Web Tools limitations
TABLE 23
Area
Firmware download
Firmware downgrade
HTTP timeout
Java cache
Java Plug-in
Java Plug-in
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DRAFT: BROCADE CONFIDENTIAL
Web Tools limitations (Continued)
Details
There are multiple phases to firmware download and activation. When Web Tools
reports that firmware download completed successfully, this indicates that a basic
sanity check, package retrieval, package unloading, and verification was successful.
Web Tools forces a full package install.
A restart is required to activate the newly downloaded firmware. This restart is done
automatically; however, although Web Tools screens continue to display during the
restart, they are not available. Wait approximately 10 minutes to ensure that all of the
application windows are restored. If Web Tools fails to respond after 20 minutes, you
might need to close all Web Tools applications windows and restart them, or to contact
your system administrator for network assistance.
The Web Tools loss of network connectivity during a failover or restart (initiated through
the firmwareDownload) varies for different configurations:
Brocade 48000 and DCX and DCX-4S enterprise-class platforms: loss of network
connectivity is up to 5 minutes if the power-on self-test (POST) is disabled. If POST is
enabled, the loss of network connectivity can exceed 5 minutes.
Brocade 200E, 300, 4012, 4016, 4018, 4020, 4024, 4100, 4900, 5000, 5100, 5300,
7500 and 7500E Extension switches, 7600, and the Encryption Switch: Loss of
network connectivity is up to 1 minute if POST is disabled. If POST is enabled, the loss of
network connectivity can exceed 1 minute.
If you try to run Web Tools on a switch after downgrading the firmware, Web Tools may
not open. This is due to the presence of old application cache files in Java. The
workaround is to delete the application cache files using the Java Control Panel.
Occasionally, you might see the following message when you try to get data from a
switch or to send a request to the switch:
Failed to get switch response. Please verify the status of your last operation and try
again if necessary.
This indicates that an HTTP request did not get a response. The request was sent to the
switch, but the connection was down, probably caused by a temporary loss of the Web
server on the switch. Due to the nature of an HTTP connection, Web Tools reports this
error after a 90-second default timeout.
In this case, verify the status of your last request, using Telnet to check related status,
or click the Refresh button from the Web Tools application you were working on to
retrieve related data. If your request did not get through to the switch, resubmit it.
Executing a refresh from Web Tools retrieves a copy of switch data at that moment; the
data you entered can be lost if it had not already committed to the switch.
If the Web Tools progress bar stops at 93 percent when initializing switch details, you
must clear the Java cache, as described in
Java applications"
If you remove the certificate (not recommended) from the Java Control Panel, you must
close and reopen the browser for the certificate removal to take effect.
If you have a Web Tools session open and you open a second session using the File >
New browser menu, this results in unexpected behavior of the original Web Tools
session. For example, you cannot change Admin Domains in the second session.
Web Tools supports only one browser instance per JRE, and when you open another
window using the File > New menu, the two windows share the same JRE environment.
Workaround: Open two independent browser sessions.
"Deleting temporary internet files used by
on page 6.
Web Tools Administrator's Guide
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