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Configuring MX Series Router Cloud CPE VRRP Services with Multiple VRRP Groups and Subnets (Load Sharing)

This procedure configures two VRRP groups in two subnets with load balancing. To support load sharing, we need to split the customer LAN into two subnets. There is one VRRP group and one virtual IP address for each subnet. One cCPE has a higher priority than the other cCPE in one VRRP group but a lower priority in the other VRRP group. So, when both access links are available, one virtual IP address exists in one cCPE instance and the other virtual IP address exists in the other cCPE instance. Traffic from hosts in one subnet flows through the access link connected to the cCPE instance with the virtual IP virtual address, which is the default gateway for the subnet. So both links are used. When one access link is down, both virtual addresses are moved to the same cCPE instance so that connectivity is maintained.

Note: A maximum of 1024 VRRP instances are supported per chassis.

Before you begin, make sure you have completed the steps for the cCPE common configuration. See Configuring the Common Configuration for MX Series Router Cloud CPE Services.

Then complete the following tasks to configure the primary PE router:

  1. Configure the subscriber access link. See Configuring the Subscriber Access Link for MX Series Router Cloud CPE Services.
  2. Configure the bridge domain. See Configuring the Bridge Domain for MX Series Router Cloud CPE Services.
  3. Configure the routing instance. See Configuring the VPN Routing Instance for MX Series Router Cloud CPE Services.
  4. Configure the first VRRP group. The virtual IP address for the VRRP group is the gateway address of the corresponding subnet in the cloud CPE LAN. See Configuring a VRRP IPv4 Group for MX Series Router Cloud CPE Services.
  5. Configure tracking of the CPE-facing Layer 2 interface for the first VRRP group. See Enabling Tracking of the CPE-Facing Layer 2 Interface.
  6. Configure a second VRRP group. The virtual IP address for the VRRP group is the gateway address of the corresponding subnet in the cloud CPE LAN. Be sure to set either a higher or lower priority as compared to the first VRRP group. See Configuring a VRRP IPv4 Group for MX Series Router Cloud CPE Services.
  7. Configure tracking of the second CPE-facing Layer 2 interface for the second VRRP group. See Enabling Tracking of the CPE-Facing Layer 2 Interface.

Complete the following tasks to configure the secondary PE router:

  1. Configure the subscriber access link. See Configuring the Subscriber Access Link for MX Series Router Cloud CPE Services.
  2. Configure the bridge domain. See Configuring the Bridge Domain for MX Series Router Cloud CPE Services.
  3. Configure the routing instance. See Configuring the VPN Routing Instance for MX Series Router Cloud CPE Services.
  4. Configure the first VRRP group. The virtual IP address for the VRRP group is the gateway address of the corresponding subnet in the cloud CPE LAN. See Configuring a VRRP IPv4 Group for MX Series Router Cloud CPE Services
  5. Configure tracking of the CPE-facing Layer 2 interface for the first VRRP. See Enabling Tracking of the CPE-Facing Layer 2 Interface.
  6. Configure a second VRRP group. The virtual IP address for the VRRP group is the gateway address of the corresponding subnet in the cloud CPE LAN. Be sure to set either a higher or lower priority as compared to the first VRRP group. See Configuring a VRRP IPv4 Group for MX Series Router Cloud CPE Services.
  7. Configure tracking of the second CPE-facing Layer 2 interface for the second VRRP group. See Enabling Tracking of the CPE-Facing Layer 2 Interface.
 

Related Documentation

 

Modified: 2015-11-04

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