H3C Technologies H3C S12500-X Series Switches - Manual (Page 54)

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Table 3 VXLAN IS-IS LSP timers
LSP timer Functionality Tuning guidelines
Minimum LSP transmit interval
Sets the minimum interval for
transmitting LSPs out of an interface.
You can also set the number of LSPs that
can be sent at each interval. Increase the interval to reduce LSP
traffic in the network.
Decrease the interval for quick
LSDB synchronization.
LSP lifetime
Sets the amount of time that an LSP can
be retained in an LSDB. Set the lifetime to a higher value
than the LSP refresh interval.
LSP refresh interval Controls the update interval for an LSP.
Increase the interval to protect the
CPU from frequent LSP generation.
Decrease the interval for quick
reaction to topology change
events.
Setting the minimum LSP transmit interval and the maximum number of LSPs sent at each interval
When LSDB changes, VXLAN IS-IS sends LSP updates to notify its neighbors.
To control VXLAN IS-IS LSP traffic on the network:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter VXLAN or NVE tunnel
interface view. interface tunnel tunnel-number
[ mode { nve | vxlan } ]
N/A
3. Set the minimum LSP transmit
interval and the maximum number
of LSP segments sent at each
interval.
overlay isis timer lsp time
[ count count ]
By default, the minimum LSP
transmit interval is 100
milliseconds. A maximum of five
LSP segments can be sent at each
interval.
Setting the maximum LSP lifetime
VTEPs add a lifetime in each LSP they advertise. A VTEP removes an LSP from the LSDB if it does not
receive an update for the LSP before the lifetime expires.
To set the maximum lifetime of the LSPs generated by the VTEP:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter VXLAN IS-IS view. vxlan-isis N/A
3. Set the maximum LSP
lifetime.
timer lsp-max-age seconds
The default maximum LSP lifetime is
1200 seconds.
Setting the LSP refresh interval
The VTEP sends LSP updates at the refresh interval to update MAC reachability information and VXLAN
autonegotiation information.
To set the LSP refresh interval: