McDATA Enterprise Operating System, User Manual

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2
CLI Commands
2-77
config
Parameters This command has one parameter.
Command Example
Root> config switch raTOV 20
config.switch.rerouteDelay
Syntax
rerouteDelay rerouteDelayState
Purpose This command enables or disables rerouting delay for the switch.
NOTE: The switch can be either offline or online when this command is
executed.
This command is only applicable if the configured switch is in a
multiswitch fabric. Enabling the rerouting delay ensures that frames
are delivered in order through the fabric to their destination.
If there is a change to the fabric topology that creates a new path (for
example, a new switch is added to the fabric), frames may be routed
over this new path if its hop count is less than a previous path with a
minimum hop count. This may result in frames being delivered to a
destination out of order because frames sent over the new, shorter
path may arrive ahead of older frames still in route over the older
path.
If rerouting delay is enabled, traffic ceases in the fabric for the time
specified in the config.switch.edTOV command. This delay allows
frames sent on the old path to exit to their destination before new
frames begin traversing the new path. Note that during this delay
period, frames addressed to the destinations that are being rerouted
are discarded if they are Class 3 frames and rejected if they are Class 2
or Class F frames.
timeoutValue Specifies the new R_A_TOV value. The units for
this value are tenths of a second. This parameter
must be an integer in the range 10–1200
(1 second to 120 seconds), and it must be larger
than the E_D_TOV.