H3C Technologies H3C S12500-X Series Switches - Manual (Page 18)

12
Step Command Remarks
7. Set the Overload bit of
LSPs and set the lifetime
for the set Overload bit.
set-overload [ timeout ]
By default, the Overload bit is not set.
Do not set the Overload bit for LSPs sent by
the root bridge of a TRILL distribution tree.
Otherwise, the traffic to be forwarded
through the RB cannot be forwarded.
8. Return to system view. quit N/A
9. Enter Layer 2 Ethernet
or aggregate interface
view.
interface interface-type
interface-number
N/A
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 SFP
calculation intervals, you can prevent resource overconsumption when network changes are frequent.
When network changes are not frequent, the SPF calculation interval for continuous calculations is
reduced to minimum-interval. When the network changes are frequent, 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 SFP calculation
interval is 10 seconds, the minimum SPF
calculation interval is 10 milliseconds, and
the SFP 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: