Tuning Isis-Spb Adjacency Maintenance Settings - HP 5920 series Configuration Manual

To configure NSR for ISIS-SPB:
Step
1. Enter system view.
2. Enter SPBM view.
3. Enable NSR for ISIS-SPB.

Tuning ISIS-SPB adjacency maintenance settings

ISIS-SPB uses the ISIS-SPB hello interval and the hello multiplier for adjacency establishment and
maintenance.
Configuring the ISIS-SPB hello interval
ISIS-SPB sends hellos over links to establish and maintain adjacencies between SPBM nodes.
A short interval improves network convergence time, but it requires more system resources.
To configure the ISIS-SPB hello interval on an interface:
Step
1. Enter system view.
2. Enter Layer 2 Ethernet
interface view or Layer 2
aggregate interface view.
3. Configure the ISIS-SPB hello
interval.
Configuring the hello multiplier for calculating the adjacency hold time
Adjacency hold time sets the maximum amount of time for one SPBM node to retain the adjacency with
another. This timer determines how quick it takes for an SPBM node to detect a failed link.
The adjacency hold time equals the ISIS-SPB hello interval multiplied by the hello multiplier.
An SPBM node sends its adjacency hold time in hello packets to update the adjacencies with its neighbor.
The neighbor removes the adjacency with the advertising node and recalculates routes, if it does not
receive a hello packet before the timer expires.
To configure the multiplier for calculating the adjacency hold time on an interface:
Step
1. Enter system view.
2. Enter Layer 2 Ethernet
interface view or Layer 2
aggregate interface view.
Command
system-view
spbm
non-stop-routing
Command
system-view
interface interface-type
interface-number
spbm timer hello seconds
Command
system-view
interface interface-type
interface-number
24
Remarks
N/A
N/A
By default, NSR is disabled for
ISIS-SPB.
Remarks
N/A
N/A
The default hello interval is 10
seconds. The maximum adjacency
hold time is 65535 seconds. If this
value is exceeded, the original
hello interval remains unchanged.
Remarks
N/A
N/A