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enterprise-router/umn/source/associations/association_overview.rst
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Association Overview

Each attachment can be associated with one route table for:

  • Packet forwarding: Packets from the attachment are forwarded through the routes specified in the associated route table.
  • Route propagation: The routes in the associated route tables are automatically propagated to the route table of the attachment.
Figure 1 Associations
Table 1 Association description
Attachment Type Route Learning Way to Create Association Description
VPC Not supported
  • Auto creation: If Default Route Table Association is enabled and the default association route table is specified, attachments are automatically associated with the default association route table.
    • If you want to enable this function when you create an enterprise router, refer to Creating an Enterprise Router <er_01_0069>.
    • If you want to enable this function after an enterprise router is created, refer to Modifying an Enterprise Router <er_01_0013>.
  • Manual creation: You can select a route table and create an association in it to associate an attachment with the route table. For details, see Creating an Association for an Attachment in a Route Table <er_01_0031>.

Each attachment can only be associated with one route table. Associations between attachments in Association Overview <er_01_0030> are described as follows:

  • Auto creation: The system automatically associates attachments, such as VPC 1, VPC 2, and virtual gateway 1 attachments, with the default route table of the enterprise router.
  • Manual creation: You need to manually create associations in the custom route table of the enterprise router for attachments, such as VPC 3, VPC 4, and virtual gateway 2 attachments.
Virtual gateway Supported