helper-role (OSPFv3)

Function

The helper-role command configures a switch to support the GR Helper mode.

The undo helper-role command cancels GR Helper mode.

By default, the switch is not enabled to support GR Helper mode.

Format

helper-role [ { ip-prefix ip-prefix-name | acl-number acl-number | acl-name acl-name } | max-grace-period period | planned-only | lsa-checking-ignore ]^*

Parameters

Parameter	Description	Value
ip-prefix ip-prefix-name	Specifies the name of the IP prefix list.	The name is a string of 1 to 169 case-sensitive characters, with spaces not supported. When double quotation marks are used around the string, spaces are allowed in the string.
acl-number acl-number	Specifies the number of the basic ACL.	The value is an integer that ranges from 2000 to 2999.
acl-name acl-name	Specifies the name of a IPv6 Named ACL.	The value is a string of 1 to 64 case-sensitive characters without spaces. The value must start with a letter.
max-grace-period period	Specifies the permitted maximum restart period.	The value is an integer ranging from 1 to 1800, expressed in seconds. By default, the value is 1800 seconds.
planned-only	Indicates that switches support Planned-GR only. By default, switches support Planned-GR and Unplanned-GR.	-
lsa-checking-ignore	Indicates that strict check is not performed on LSAs. By default, switches perform strict check on received LSAs.	-

Views

OSPFv3 view

Default Level

2: Configuration level

Usage Guidelines

Switches cannot use the helper mode during the GR process.

For an ACL, when the rule command is used to configure a filtering rule, the filtering rule is effective only with the source address range that is specified by the source parameter and with the time period that is specified by the time-range parameter.

Example

# Configure a switch to support the helper mode.

<HUAWEI> system-view
[HUAWEI] ospfv3 1
[HUAWEI-ospfv3-1] helper-role acl-number 2001 max-grace-period 250 planned-only lsa-checking-ignore