Specifications

CHAPTER
16
ShoreTel Mobility Router Administration Guide 227
16. Managing Redundancy
Clusters
The Mobility Router provides stateful high availability by using redundancy clusters. A redundancy
cluster consists of two Mobility Routers. One Mobility Router is the active (primary) node, and the other
Mobility Router is the standby (secondary) node. The standby node becomes the active node if the
original active node fails, ensuring that calls are not dropped. This chapter contains the following
sections:
 “About Redundancy Clusters” on page 228
 “Redundancy Cluster Prerequisites” on page 229
 “Redundancy Cluster Scenarios” on page 229
 “Creating a Cluster with Two New Mobility Routers” on page 230
 “Creating a Redundancy Cluster with a Configured Mobility Router and a New Mobility Router” on
page 233
 “Creating a Redundancy Cluster with a Configured Mobility Router with Remote Access and a
New Mobility Router” on page 237
 “Managing Redundancy Clusters” on page 242
 “Removing a Second Mobility Router from Redundancy Cluster” on page 243
 “Upgrading Redundancy Clusters” on page 243
 “Monitoring Cluster Status” on page 244
 “Troubleshooting” on page 244