Automatic firmware synchronization, Upgrading and downgrading firmware – Brocade Network OS Administrator’s Guide v4.1.1 User Manual
Page 113
Automatic firmware synchronization
When you replace or insert a second management module into a chassis, the active management
module automatically synchronizes the hot-plugged standby management module with the same
firmware version. The standby management module reboots with the upgraded firmware. The automatic
firmware synchronization takes place only if all of the following conditions are met:
• The standby management module is inserted while the chassis is already up (hot-plugged insert).
• There was no firmware download process running when the standby management module was
inserted.
• The active and standby firmware versions must be different.
NOTE
Automatic firmware synchronization is intrinsic to Network OS v4.0.0 and later and no corresponding
enable or disable commands are associated with the feature. As a result, the feature cannot be
disabled.
Upgrading and downgrading firmware
In most cases, you will be upgrading firmware by installing a more recent firmware version than the one
you are currently running. However, some circumstances may require that you downgrade the firmware
to an earlier version. The procedures described in the following section assume that you are upgrading
firmware, but they work for downgrading as well, provided that the firmware version you are
downgrading to is compatible with the version you are currently running. The following lists supported
firmware versions by platform.
Network OS firmware support by platform
TABLE 12
Platform
2.0.0
2.1.0
2.1.1
3.0.0
4.0.0
4.1.0
Brocade VDX 6710
no
yes
yes
yes
yes
yes
Brocade VDX 6720
yes
yes
yes
yes
yes
yes
Brocade VDX 6730
no
yes
yes
yes
yes
yes
Brocade VDX 6740
Brocade VDX 6740T
no
no
no
no
yes
yes
Brocade VDX 6740T-1G
no
no
no
no
no
yes
Brocade VDX 8770
no
no
no
yes
yes
yes
If you are using a Brocade VDX 6740, 6740T, or 6740T-1G, you cannot download firmware earlier than
Network OS 4.0.0.
Always refer to the release notes for compatibility information and take note of restrictions that may
exist regarding upgrades and downgrades under particular circumstances.
Automatic firmware synchronization
Network OS Administrator’s Guide
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