4.10 Adjusting and Optimizing VRRP.................................................................................................................119

4.10.1 Establishing the Configuration Task...................................................................................................119

4.10.2 Configuring the Interval for Sending VRRP Advertising Messages...................................................120

4.10.3 Configuring the Preemption Delay Time of Backup Group Router s.................................................121

4.10.4 Enabling the Reachability Test of the Virtual IP Address...................................................................123

4.10.5 Disabling a Router from Checking Number of Hops in VRRP Packets.............................................123

4.10.6 Configuring the Timeout Time of Sending Gratuitous ARP Packets by the Master router................124

4.10.7 Checking the Configuration.................................................................................................................125

4.11 Configuring mVRRP Backup Groups..........................................................................................................126

4.11.1 Establishing the Configuration Task...................................................................................................126

4.11.2 Configuring mVRRP Backup Group...................................................................................................128

4.11.3 (Optional) Configuring Member VRRP Backup Groups and Binding them to the mVRRP Backup Group

........................................................................................................................................................................129

4.11.4 (Optional) Binding Member Interface and Management Backup Group............................................130

4.11.5 (Optional) Binding the PW to the mVRRP Backup Group Through VPLS.......................................131

4.11.6 Checking the Configuration.................................................................................................................131

4.12 Configuring VRRP Version Upgrade...........................................................................................................132

4.12.1 Establishing the Configuration Task...................................................................................................133

4.12.2 Configuring VRRPv3..........................................................................................................................133

4.12.3 Checking the Configuration.................................................................................................................134

4.13 Maintaining VRRP.......................................................................................................................................134

4.13.1 Monitoring the VRRP Running...........................................................................................................134

4.14 Configuration Examples...............................................................................................................................135

4.14.1 Example for Configuring VRRP in Master/Backup Mode.................................................................135

4.14.2 Example for Configuring VRRP in Load Balancing Mode................................................................139

4.14.3 Example for Configuring the Multi-Instance VRRP...........................................................................143

4.14.4 Example for Configuring VRRP Fast Switchover..............................................................................149

4.14.5 Example for Configuring VRRP Fast Switchover (Using One-Arm Echo Function)........................153

4.14.6 Example for Configuring VRRP Fast Switchover (Using BFD Sampling)........................................160

4.14.7 Example for Configuring Ignorance of the Down of an Interface Where the mVRRP Backup Group Is

Configured......................................................................................................................................................179

4.14.8 Example for Configuring VRRP on VLANIF Interfaces....................................................................199

4.14.9 Example for Configuring VRRP on Sub-interfaces for QinQ VLAN Tag Termination to Reduce the

Number of Gratuitous ARP Packets to Be Sent.............................................................................................206

4.14.10 Example for Configuring VRRP for IPv6 on Sub-interfaces for QinQ VLAN Tag Termination to

Reduce the Number of ND Packets to Be Sent..............................................................................................214

4.14.11 Example for Configuring a VRRP6 Backup Group in Master/Backup Mode..................................222

4.14.12 Example for Configuring VRRP6 Backup Groups in Load Balancing Mode..................................227

5 BFD Configuration....................................................................................................................232

5.1 Introduction to BFD........................................................................................................................................234

5.1.1 BFD Overview.......................................................................................................................................234

5.1.2 BFD Features Supported by the NE80E/40E........................................................................................234

5.2 Configuring Single-hop BFD.........................................................................................................................242

Issue 02 (2011-09-10)

Huawei Proprietary and Confidential

Contents

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Table of Contents