text: Additionally, a benefit is realized in isolating remote replication traffic to dedicated ports, and 
  ensuring that any problems that affect the cluster-to-cluster interconnect do not affect all ports 
  on the local cluster. 
  
  IBM suggests the port designations for isolating both port-to-local and port-to-remote canister 
  traffic for Storwize V7000 Gen2 and Gen2+ canisters, as shown in Figure 3-6. 