Setting Up Tri-Cascading Network Gateway Connections Using a Predefined Network Topology

You can use predefined network topologies to configure tri-cascading network gateway connections of client type servers.

Before You Begin

• Create the following five client groups to be used in the network gateway topology:

  • An infrastructure group, which will contain the CommServe server and internal MediaAgents.

  • A client group, which will contain all clients.

  • Three network gateway client groups: one that resides near the infrastructure machines group; one that resides near the servers group; and one that resides in between these two.

• You must have administrative management permissions on the client groups that you plan to use in the network topology instance.

• If you have clients in your network gateway client group that belong to other client groups that are not designated for network gateway connections, then the network gateway settings on the clients might be lost. To prevent this issue, perform the following steps:

  • Access the network properties of the client. On the Network Route Configuration tab, select the Configure Network Route Settings check box. Click Advanced, and then click OK when the warning message appears.

  • On the Options tab, select the This computer is in DMZ and will work as a network gateway check box.

Procedure

1. From the Command Center navigation pane, go to Manage > Network.

2. Click Network topologies.

   The Network topologies page appears.

3. Click Add topology.

   The Add topology page appears.

4. In the Name box, enter a name for the topology.

5. For Client type, select Servers.

6. From the Topology Type list, select Tri-cascading Gateways.

7. Click Next.

8. Perform the following steps using the image shown below as reference:

   

   Note

   See Using a Smart Network Topology When Setting Up Network Connections.

   1. In the Servers list, select a client group that will initiate connections to the network gateway group that resides near the servers group.

   2. Optional: Click the advanced toggle next to the Servers list to edit the following options:

      • Tunnel port. Set this to Default (8403), or enter another port number.

      • Keep-alive interval. The interval (in seconds) for sending keep-alive packets, to maintain the session if backup traffic has an extended pause. Set this to 180 (default), or enter another interval. To avoid idle session timeouts on cloud-based clients, set the interval to 200 seconds or less.

   3. In the Server gateways list, select the client group that you want to designate as the network gateway group that resides near the servers group.

   4. Optional: Click the advanced toggle next to the Server gateways list to edit the Tunnel port and Keep-alive interval options, as described above.

   5. In the Secondary network gateways list, select the client group that you want to designate as the network gateway group that works as a bridge between the Server gateways and the Primary network gateways.

   6. Optional: Click the advanced toggle next to the Secondary network gateways list to edit the Tunnel port and Keep-alive interval options, as described above.

   7. In the Primary network gateways list, select the client group that you want to designate as the network gateway group that resides near the infrastructure group.

   8. Optional: Click the advanced toggle next to the Primary network gateways list to edit the Tunnel port and Keep-alive interval options, as described above.

   9. In the Backup infrastructure list, select a client group that will initiate connections to the network gateway group that resides near the infrastructure group.

   10. Optional: Click the advanced toggle next to the Backup infrastructure list to edit the Tunnel port and Keep-alive interval options, as described above.

9. Click Next.

10. Optional: Edit the following advanced options:

    • Move the Encrypt traffic toggle key to the right to encrypt network traffic (HTTPS).

    • Select Encrypted, Authenticated, Regular, or Raw from the tunnel protocol list.

    • Select the Parallel data transfer streams for long distance networks (default value is 1, and maximum value is 8).

11. Click Submit.