ModifyCenRouteMap

The name of this action. Valid value: ModifyCenRouteMap.

The ID of the CEN instance.

The ID of the region to which the CEN instance belongs. To query the region ID, call DescribeRegions.

The action that is performed to a route if the route meets all the match conditions. Valid values:

• Permit: The route is permitted.
• Deny: The route is denied.

The priority of the route map. Value range: 1 to 100. A lower value indicates a higher priority.

The ID of the route map.

The priority of the next route map that is associated with the current route map. Value range: 1 to 100.

• If this parameter is not set, the current route map is not associated with any route map that is ordered next to the current route map.
• If this parameter is set to 1, the current route map is associated with the next route map.
• If this parameter is set to a value other than 1, the priority of the associated route map must be lower than the priority of the current route map, that is, the value of NextPriority must be greater than the value set for Priority.

Only when MapResult is set to Permit, the routes which match all the matching criteria will be evaluated by the associated route map that is configured with a specific priority value.

The description of the route map.

A match statement that indicates the list of IDs of the source regions. Up to 32 region IDs can be entered.

A match statement that indicates the list of IDs of the source instances.

IDs of Virtual Private Cloud (VPC) instances, Virtual Border Router (VBR) instances, mainland China Cloud Connect Network (CCN) instances, and Smart Access Gateway (SAG) instances are supported. Up to 32 instance IDs can be entered.

Indicates whether to enable the reverse match method of the SourceInstanceIds match condition. Valid values:

• false (default): If the ID of a route's source instance is included in SourceInstanceIds, the route is permitted.
• true: If the ID of a route's source instance is not included in SourceInstanceIds, the route is permitted.

A match statement that indicates the list of IDs of the destination instances.

IDs of VPC instances, VBR instances, mainland China CCN instances, and SAG instances are supported. Up to 32 instance IDs can be entered.

Indicates whether to enable the reverse match method of the DestinationInstanceIds match condition. Valid values:

• false (default): If the ID of a route's destination instance is included in DestinationInstanceIds, the route is permitted.
• true: If the ID of a route's destination instance is not included in DestinationInstanceIds, the route is permitted.

A match statement that indicates the list of IDs of the source route tables. Up to 32 route table IDs can be entered.

A match statement that indicates the list of IDs of the destination route tables. Up to 32 route table IDs can be entered.

A match statement that indicates the list of source instance types. Valid values:

• VPC: VPC
• VBR: VBR
• CCN: Mainland China CCN

A match statement that indicates the list of destination instance types. Valid values:

• VPC: VPC
• VBR: VBR
• CCN: Mainland China CCN

A match statement that indicates the prefix list. The prefix is in the CIDR format. Up to 32 CIDR blocks can be entered.

A match statement. It indicates the mode in which the prefix attribute is matched. Valid values:

• Include: Fuzzy match. If the prefix of a route is contained in the prefix in the match condition, the route matches the condition.

  For example, if the prefix in the match condition is set to 1.1.0.0/16 and the match method is set to Fuzzy Match, the route with the prefix of 1.1.1.0/24 matches the condition.

• Complete: Exact match. A route matches the condition only when the prefix of the route is the same as the prefix in the match condition.

  For example, if the prefix in the match condition is set to 1.1.0.0/16 and the match method is set to Exact Match, only the route with the prefix of 1.1.1.0/16 matches the condition.

A match statement that indicates the list of route types. Valid values:

• System: System routes generated by the system
• Custom: Custom routes added by users
• BGP: Routes advertised to BGP

Multiple route types can be entered.

A match statement that indicates the As path list. The AS path is a well-known mandatory attribute, which describes the numbers of the ASs that a BGP route passes through during transmission.

Only support AS SEQUENCE. AS SET, AS CONFED SEQUENCE, or AS CONFED SET are not supported. Specifically, only a list of AS numbers are supported. Sets or sub-lists are not supported.

A match statement. It indicates the mode in which the as-path attribute is matched. Valid values:

• Include: Fuzzy match. A route matches the condition if the AS path in the route overlaps the AS path in the match condition.
• Complete: Exact match. A route matches the condition only when the AS path of the route is the same as the AS path in the match condition.

A match statement that indicates the community set. The format of each community is nn:nn, which ranges from 1 to 65535. Up to 32 communities can be entered. Communities must comply with RFC 1997. Large communities (RFC 8092) are not supported.

A match statement. It indicates the mode in which the community attribute is matched. Valid values:

• Include: Fuzzy match. A route matches the condition if the community of the route overlaps the community in the match condition.
• Complete: Exact match. A route matches the condition only when the community of the route is the same as the community in the match condition.

An action statement. It indicates the mode in which the community attribute is operated. Valid values:

• Additive: Sets a value for the community attribute.
• Replace: Replaces the value of the community attribute.

An action statement that operates the community attribute. The format of each community is nn:nn, which ranges from 1 to 65535. Up to 32 communities can be entered. Communities must comply with RFC 1997. Large communities (RFC 8092) are not supported.

An action statement that modifies the preference of the route. Value range: 1 to 100. The default preference of a route is 50. A lower value indicates a higher preference.

Indicates AS Path prepending when a regional gateway receives or publishes a route.

The requirements for configuring AS Path prepending vary depending on the application direction of the route map. The requirements are described as follows:

• If the TransmitDirection parameter is set to RegionIn, and you want to configure the AS Path prepending, the match conditions must include the Source Instance IDs and the Source Region. Furthermore, you must specify the same value for Source Region and Region.
• If the TransmitDirection parameter is set to RegionOut, and you want to configure the AS Path prepending, the match conditions must include the Destination Instance IDs.