H3C S7500 Series Ethernet Switches Command Manual

Table Of Contents
Command Manual – Routing Protocol
H3C S7500 Series Ethernet Switches Chapter 5 BGP Configuration Commands
5-8
View
BGP view
Parameters
half-life-reachable: Semi-dampening of a reachable route, in minutes, in the range of 1
to 45. The default value is 15.
half-life-unreachable: Semi-dampening of an unreachable, in minutes, in the range of 1
to 45. The default value is 15.
reuse: Threshold for disabling route suppression, in seconds. When the penalty value
is below this threshold, the route will be reused. The range is 1 to 20,000. The default
value is 750.
suppress: Threshold for enabling route suppression, in seconds. When the penalty
value is above the threshold, the route is suppressed. The range is 1 to 20,000. The
default value is 2,000.
ceiling: Upper penalty threshold in seconds, that is, the penalty value stops increasing
when it reaches the upper threshold. The range is 1,001 to 20,000. The default value is
16,000.
route-policy-name: Name of a route policy, in the range of 1 to 19 characters.
If no value is specified for the arguments, their default values will take effect. The
half-life-reachable, half-life-unreachable, reuse, suppress, and ceiling arguments are
independent of each other. Therefore, if you specify a value for any of these arguments,
you must specify a value for all the others.
Description
Use the dampening command to make BGP route attenuation valid or modify various
BGP route attenuation parameters.
Use the undo dampening command to make the characteristics invalid.
By default, no route attenuation is configured.
Related commands: reset bgp dampening, reset bgp flap-info, display bgp
routing-table dampened, display bgp routing-table flap-info.
Examples
# Configure BGP route dampening parameters.
<H3C> system-view
System View: return to User View with Ctrl+Z.
[H3C] bgp 100
[H3C-bgp] dampening 15 15 1000 2000 10000