87 VRRP CONFIGURATIONIntroduction to VRRP 1073Configuring VRRP for IPv4 1081Configuring VRRP for IPv6 1084IPv4-Based VRRP Configuration Examples 1088IPv6-Based VRRP Configuration Examples 1096Troubleshooting VRRP 110588 SSH C ONFIGURATIONSSH2.0 Overview 1107Configuring the Device as an SSH Server 1110Configuring the Device as an SSH Client 1115Displaying and Maintaining SSH 1118SSH Server Configuration Examples 1119SSH Client Configuration Examples 112589 SFTP S ERVICESFTP Overview 1131Configuring an SFTP Server 1131Configuring an SFTP Client 1132SFTP Configuration Example 113590 RRPP C ONFIGURATIONRRPP Overview 1139RRPP Configuration Task List 1146Configuring Master Node 1147Configuring Transit Node 1148Configuring Edge Node 1149Configuring Assistant Edge Node 1151Displaying and Maintaining RRPP 1152RRPP Typical Configuration Examples 115291 P ORT SECURITY C ONFIGURATIONIntroduction to Port Security 1161Port Security Configuration Task List 1164Enabling Port Security 1164Setting the Maximum Number of Secure MAC Addresses 1165Setting the Port Security Mode 1165Configuring Port Security Features 1167Configuring Secure MAC Addresses 1168Ignoring the Authorization Information from the Server 1168Displaying and Maintaining Port Security 1169Port Security Configuration Examples 1169Troubleshooting Port Security 1178