Handbook

Error! Use the Home tab to apply 見出し 1 to the text that you want to appear here. 6
Remote monitoring
Introduction ..............................................................................................................................................................132
Overview ...................................................................................................................................................................132
RMON group 1 — statistics ...............................................................................................................................132
RMON group 2 — history ..................................................................................................................................135
RMON group 3 — alarms ..................................................................................................................................138
RMON group 9 — events ..................................................................................................................................142
High availability
Introduction ..............................................................................................................................................................144
Uplink Failure Detection..........................................................................................................................................144
Failure Detection Pair ........................................................................................................................................145
Spanning Tree Protocol with UFD ....................................................................................................................145
Configuration guidelines ..................................................................................................................................145
Monitoring Uplink Failure Detection ...............................................................................................................145
Configuring Uplink Failure Detection .............................................................................................................146
VRRP overview .........................................................................................................................................................150
VRRP components .............................................................................................................................................150
VRRP operation ........................................................................................................................................................151
Selecting the master VRRP router ...................................................................................................................151
Failover methods .....................................................................................................................................................151
Active-Active redundancy ..............................................................................................................................152
Extensions to VRRP ...................................................................................................................................................152
Tracking VRRP router priority ............................................................................................................................152
Virtual router deployment considerations ..........................................................................................................153
Assigning VRRP virtual router ID .......................................................................................................................153
Configuring the switch for tracking ................................................................................................................153
High availability configurations .............................................................................................................................154
Active-Active configuration ............................................................................................................................154
Troubleshooting tools
Introduction ..............................................................................................................................................................165
Port Mirroring.............................................................................................................................................................165
Configuring Port Mirroring (AOS CLI example) .............................................................................................166
Configuring Port Mirroring (BBI example) ......................................................................................................167
Other network troubleshooting techniques .......................................................................................................169
Console and Syslog messages ........................................................................................................................169
Ping .......................................................................................................................................................................169
Traceroute ...........................................................................................................................................................169
Statistics and state information .......................................................................................................................169
Customer support tools .....................................................................................................................................169