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CX11x, CX31x, CX710 (Earlier Than V6.03), and CX91x Series Switch Modules V100R001C10 Configuration Guide 12

The documents describe the configuration of various services supported by the CX11x&CX31x&CX91x series switch modules The description covers configuration examples and function configurations.
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Configuration Task Summary

Configuration Task Summary

After basic VRRP functions are configured, VRRP can work properly. To deploy special VRRP functions such as mVRRP and VRRP association, perform the configurations according to the following sections.

Table 11-15 describes the VRRP configuration tasks.

Table 11-15 VRRP configuration task summary

Scenario

Description

Task

Configure basic functions of a VRRP group

You can configure a VRRP group to implement gateway backup and ensure stable and high-efficient data forwarding.

Configuring Basic Functions of an IPv4 VRRP Group

Configuring Basic Functions of an IPv6 VRRP Group

Configure an mVRRP group

An mVRRP group can be bound to VRRP groups and determine the status of a VRRP group based on the binding. mVRRP is used when multiple VRRP groups coexist. mVRRP helps decrease the number of VRRP Advertisement packets to be sent and minimize network bandwidth and system resource consumption.

Configuring an mVRRP Group

Configuring an mVRRP6 Group

Configure association between VRRP and BFD to implement a rapid active/standby VRRP switchover

A VRRP group can be configured to monitor a BFD session. When the BFD session status changes, BFD notifies the VRRP group of the change. After receiving the notification, the VRRP group rapidly performs an active/standby switchover.

Configuring Association Between VRRP and BFD to Implement a Rapid Active/Standby Switchover

Configuring Association Between VRRP and Link/Peer BFD to Implement a Rapid Active/Standby Switchover

Configuring Association Between VRRP and VRID-based Dynamic BFD

Configuring Association Between VRRP6 and BFD to Implement a Rapid Active/Standby Switchover

Configure association between VRRP and the interface status

When the uplink interface of the master becomes faulty, VRRP cannot detect the status change of interfaces not in the VRRP group. This may interrupt services. You can associate a VRRP group with the interface status. When the monitored interface is faulty, the priority of the master is adjusted. This triggers an active/standby switchover and reduces the impact of services on the uplink interface.

Configuring Association Between VRRP and the Interface Status to Implement an Active/Standby Switchover

Configuring Association Between VRRP6 and the Interface Status to Implement an Active/Standby Switchover

Configure association between VRRP and BFD/NQA/routing to monitor the uplink status

Because VRRP cannot detect faults on the uplink of a VRRP group, services may be interrupted. Association between VRRP and BFD/NQA/routing allows the device to detect faults on the uplink of the master. When the uplink of the master fails, BFD/NQA/routing rapidly detects the fault and notifies the master of adjusting its priority. This triggers an active/standby switchover and ensures proper traffic forwarding.

BFD implements millisecond-level detection. Association between VRRP and BFD provides a rapid active/standby switchover.

NQA technology collects statistics on the delay, jitter, and packet loss ratio. You can configure the percentage of failed NQA test instances and NQA association to trigger an active/standby switchover when the uplink is unstable.

Configuring Association Between VRRP and BFD to Monitor the Uplink Status

Configuring Association Between VRRP and NQA to Monitor the Uplink Status

Configuring Association Between VRRP and Routing to Monitor the Uplink Status

Configure association between a VRRP group and a direct route

Uplink traffic passes the master, but downlink traffic is often transmitted through a route of a dynamic routing protocol. In this case, uplink and downlink traffic may be transmitted along different paths. If the firewall is configured for the VRRP group to improve security, the firewall blocks traffic that is sent and received along different paths. In addition, it is difficult to monitor such traffic and collect traffic statistics.

You can associate a VRRP group with a direct route so that VRRP affects route selection of a dynamic routing protocol. Association ensures that uplink traffic and downlink traffic are transmitted along the same path.

Configuring Association Between a VRRP Group and a Direct Route

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Updated: 2019-08-09

Document ID: EDOC1000041694

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