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Typical Configuration Examples

SD-WAN V100R018C00

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Configuring BGP Routes

Configuring BGP Routes

Related Products

Agile Controller-Campus: V300R003C00

AR: V300R003C00

Networking Requirements

Figure 1-8 shows the SD-WAN networking of Enterprise A. On this network, the MPLS network and Internet (both on the WAN side) provide BGP routes. During the setup of an SD-WAN network, the tenant administrator needs to configure connectivity between the CPEs and the WAN-side network.

Figure 1-8 Enterprise networking

Solution Design

Based on customer requirements and the networking plan, the tenant administrator has created the hub site and branch sites. To configure routes for the underlay network, perform the following tasks:

  1. BGP is supported in the WAN-side network, allowing BGP routes to be configured on the underlay network for connecting the CPEs to the WAN-side network. To improve the security of the BGP routing protocol, MD5 authentication is enabled.
  2. Information about BGP peers needs to be configured on the CPE at each site to enable interconnection between the site and the MPLS network and between the site and the Internet. No routing policy needs to be configured because currently there is no need to restrict the network segments in which BGP routes are advertised and received. This means all BGP routes are advertised and received in every network segment.
  3. The Internet link at Site2 obtains a dynamic IP address through PPPoE, and the IP address of the BGP peer is 10.100.3.1, as provided by the network provider.

Data Plan

Table 1-46 BGP route information

Item

Value

Site

Hub1

Site2

Site3

Advanced Settings

Default route redistribution

ON

OFF

OFF

Device

Hub1_1

Hub1_2

Site2_1

Site2_1

Site3_1

Site3_2

Peer IP

172.16.1.2

10.100.1.2

172.16.1.10

10.100.3.1

172.16.1.14

10.100.2.2

Peer AS

100

200

100

200

100

200

Local AS

101

102

104

104

105

106

Keepalive time (s)

60

60

60

60

60

60

Hold time (s)

180

180

180

180

180

180

MD5 encrypt

admin123

admin123

admin123

admin123

admin123

admin123

WAN link

MPLS

Internet

MPLS

Internet

MPLS

Internet

Routing Policy

Export

OFF

OFF

OFF

OFF

OFF

OFF

Import

OFF

OFF

OFF

OFF

OFF

OFF

Procedure

  1. Log in to the Agile Controller-Campus as a tenant administrator.
  2. Finish creating sites.
  3. Configure BGP routes for the underlay network of the hub site.

    1. Choose Configuration > Site > Underlay Configuration.
    2. Select Hub1 from the left list and click WAN Route.
    3. On the WAN Route page that is displayed, click Click Here to Add Routing Protocol and select BGP.
    4. On the BGP page, click Advanced Settings and enable Default route redistribution.

    5. On the BGP page, click Create and set BGP route parameters.

    6. Click Apply Changes.

  4. Configure BGP routes for the underlay networks of the branch sites.

    Perform the same operations as those for the hub site to complete BGP route parameter configuration for the branch sites and click Apply Changes.

    • BGP route configuration for Site2

    • BGP route configuration for Site3

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Updated: 2019-03-04

Document ID: EDOC1100036696

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