reset bgp instance vpnv4 dampening

Format

reset bgp instance instance-name vpnv4 dampening

reset bgp instance instance-name vpnv4 dampening ipv4-address [ mask | mask-length ]

Parameters

Parameter	Description	Value
vpnv4	Clears route dampening information of BGP VPNv4 routes and releases suppressed routes.	-
instance instance-name	Specifies a BGP multi-instance.	The value is a string of 1 to 31 case-sensitive characters, spaces not supported. When double quotation marks are used around the string, spaces are allowed in the string.
ipv4-address	Specifies an IPv4 network address.	It is in dotted decimal notation.
mask	Specifies the network mask in dotted decimal notation. If neither of the mask nor mask length is specified, the address is considered as a classful address.	It is in dotted decimal notation.
mask-length	Specifies the network mask length. If neither of the mask nor mask length is specified, the address is considered as a classful address.	The value is an integer that ranges from 0 to 32.

Views

User view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
bgp	execute

Usage Guidelines

Usage Scenario

Route dampening is enabled to solve the problem of route instability. In most situations, BGP is applied to complex networks where routes change frequently. Route dampening is then used to suppress unstable routes.

The reset bgp dampening command is used to clear dampening information about specified routes on the public network and release specified suppressed routes. If no IP address is specified in the command, dampening information about all routes on the public network is cleared and all suppressed routes are released.

Prerequisites

You can use display bgp routing-table dampened command to view information about suppressed routes.

Configuration Impact

After the reset bgp dampening command is run, suppressed routes are released. If the status of some routes still changes frequently, route flapping may occur. Routing flapping consumes a large number of bandwidth and CPU resources.

When ipv6-address prefix-length is not specified, after you run the reset bgp ipv6 dampening command, IPv6 route dampening information in the whole BGP routing table is cleared.

Example

# Clear information about dampened VPNv4 routes in a BGP multi-instance.

<HUAWEI> reset bgp instance aa vpnv4 dampening