protected String getInterestRegionName() {
    return getBaseRegionName() + "_interest";
  }
Return the name of the region used for communicating interest changes between servers.

@return the name of the region used for communicating interest changes between servers
@since GemFire 5.6
geode-core/src/main/java/org/apache/geode/internal/cache/tier/sockets/ClientProxyMembershipID.java