Vsi - HP FlexFabric 5930 Series Command Reference Manual

Usage guidelines
The SPF calculation timer sets the delay between consecutive SPF calculations. You can increase the
timer for ISIS-SPB to react quickly to topology changes, and decrease the timer to protect the CPU from
frequent SPF calculations.
The SPF timer is an exponential generation timer. With this timer, ISIS-SPB quickly responds to the first
events that trigger SPF calculation and then slows down to protect the CPU from frequent SPF
calculations.
When the network is stable, the SPF calculation timer is set to the minimum interval for each SPF
computation. When the network is unstable, the SPF calculation timer increments by
incremental-interval×2
interval is reached. If an event triggers SPF calculation after the maximum interval is reached, the SPF
calculation timer re-initiates with the minimum interval.
NOTE:
The network is considered unstable if the interval between consecutive SPF calculations is smaller than two
times the maximum interval.
Examples
# Set the maximum SPF computation interval, the minimum SPF computation interval, and the base
number for the incremental interval to 10 seconds, 100 milliseconds, and 300 milliseconds,
respectively.
<Sysname> system-view
[Sysname] spbm
[Sysname-spbm] timer spf 10 100 300

vsi

Use vsi to create a VSI or enter VSI view.
Use undo vsi to delete a VSI.
Syntax
vsi vsi-name
undo vsi vsi-name
Default
No VSI is created.
Views
System view
Predefined user roles
network-admin
Parameters
vsi-name: Specifies a name for the VSI, a case-sensitive string of 1 to 31 characters.
Examples
# Create a VSI named vpls1 or enter its view.
<Sysname> system-view
(n is the number of calculations) for each SPF calculation until the maximum
n-2
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