Huawei Quidway NetEngine80E Configuration Manual page 577

HUAWEI NetEngine80E/40E Router
Configuration Guide - IP Routing
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Issue 02 (2014-09-30)
To synchronize all LSPs in the areas, IS-IS regularly transmits all the current LSPs to
neighbors.
By default, the LSP refresh interval is 900s, and the maximum lifetime of an LSP is
1200s. Ensure that the LSP refresh interval is more than 300s shorter than the
maximum LSP lifetime. This allows new LSPs to reach all routers in an area before
existing LSPs expire.
NOTE
The larger a network, the greater the deviation between the LSP refresh interval and the
maximum LSP lifetime.
Set the maximum lifetime for LSPs.
1. Run:
system-view
The system view is displayed.
2. Run:
isis [ process-id ]
The IS-IS view is displayed.
3. Run:
timer lsp-max-age age-time
The maximum lifetime is set for LSPs.
When a router generates the system LSP, it fills in the maximum lifetime for this LSP.
After this LSP is received by other routers, the lifetime of the LSP is reduced gradually.
If the router does not receive any more update LSPs and the lifetime of the LSP is
reduced to 0, the LSP will be deleted from the LSDB 60s later if no more updated
LSPs are received.
Set the minimum interval at which LSPs are sent.
1. Run:
system-view
The system view is displayed.
2. Run:
interface interface-type interface-number
The interface view is displayed.
3. Run:
isis timer lsp-throttle throttle-interval [ count count ]
The minimum interval at which LSPs are sent is set.
The count parameter specifies the maximum number of LSPs that can be sent within
the interval specified by throttle-interval. The value of count is an integer ranging
from 1 to 1000.
Enable LSP fast flooding.
1. Run:
system-view
The system view is displayed.
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7 IS-IS Configuration
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