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Adjusting the spf algorithm parameters, Configuring the trill unicast equal-cost routes – H3C Technologies H3C S6300 Series Switches User Manual

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13

Step Command

Remarks

10.

Configure the minimum

LSP interval and the
maximum number of

LSPs transmitted per

time.

trill timer lsp interval [ count
count ]

By default, the minimum LSP interval is 10
milliseconds, and the maximum number of
LSPs transmitted per time is 5.

Adjusting the SPF algorithm parameters

Based on the LSDB, an RB uses the SPF algorithm to calculate a shortest path tree with itself as the root.

The RB uses the shortest path tree to determine the next hop to a destination network. By adjusting the SPF

calculation intervals, you can prevent resource overconsumption when the network changes frequently.
When the network is stable, the SPF calculation interval for continuous calculations is reduced to
minimum-interval. When the network changes frequently, the SPF calculation interval is added by

incremental-interval × 2

n-2

(where n is the times of continuous SPF calculations triggered) each time, but

the SPF calculation interval cannot exceed maximum-interval.
To adjust SPF algorithm parameters:

Step Command

Remarks

1.

Enter system view.

system-view

N/A

2.

Enter TRILL view.

trill

N/A

3.

Set the SPF calculation
interval for TRILL.

timer spf maximum-interval
[ minimum-interval

[ incremental-interval ] ]

By default, the maximum SPF calculation
interval is 10 seconds, the minimum SPF
calculation interval is 10 milliseconds, and

the SPF calculation incremental interval is 20

milliseconds.

Configuring the TRILL unicast equal-cost routes

Configuring multiple equal-cost routes to the same destination implements load balancing among these

links and improves the link efficiency. You can configure the maximum number of TRILL unicast equal-cost

routes.
To configure the maximum number of TRILL unicast equal-cost routes:

Step Command

Remarks

1.

Enter system view.

system-view

N/A

2.

Enter TRILL view.

trill N/A

3.

Configure the maximum

number of TRILL unicast
equal-cost routes.

max-unicast-load-balancing
number

The default setting is 8.