Network - Overview

In a CommCell instance, the hardware components, such as CommServe computer, Client computer, MediaAgent and storage media, are interconnected to each other to form a network. This network is used to send or receive data and other important information to each other for the proper working of the CommCell instance.

Apart from the hardware devices, the network consists of the following components for quick and lossless transmission of information.

CommCell Network Requirements

All CommCell computers (like CommServe, MediaAgent and Client computers) must be interconnected using a network configured with TCP/IP protocol. However, there are few network requirements which should be met for the proper functioning of the CommCell like unique name for each NIC in the Domain Name Server, Internet Protocol versions like IPv4 and IPv6, TCP ports assigned to CommServe services, etc.

For detailed information on the network requirements, see CommCell Network Requirements.

Client Connectivity

Before running an operation in the CommCell, you can check the connectivity between the client and the CommServe either from the CommCell console or from the command prompt.

For detailed information on the connectivity, see Client Connectivity.

Data Pipe

In a CommCell network setup, Data Pipe transfers data between the client and the MediaAgent with the help of the parameters like Data Pipe Buffers, Network Agents and Application Read Size.

For detailed information on data pipe, see Data Pipe.

Data Interface Pairs

Data Interface Pairs creates an exclusive network route between two client computers to allow faster data transfer and communication between them in the CommCell.

For detailed information on the client interface, see Data Interface Pairs.


You can separate various CommCell components by a firewall. However, during operations like backup and restore, these components can be configured to seamlessly communicate with each other across the firewall.

For detailed information on configuring the components across the firewall, see Firewall.

Network Bandwidth Throttling

Network Bandwidth Throttling is useful to regulate network traffic and minimize bandwidth congestion for the clients and the MediaAgents in a CommCell network setup.

For detailed information on bandwidth throttling, see Network Bandwidth Throttling.

Network Password

The CommCell network password is an internal security measure used to ensure that communication occur only between the CommCell computers. By default, the software assigns each computer in the CommCell a different password which can be later changed by the administrator, if required.

For detailed information on the network password, see Network Password.

Network Tools

Network tools allow you to verify network connectivity between the CommCell components, to troubleshoot network connectivity between any two CommCell computers and to change the network password of one or more clients.

For detailed information on the different types of network tools, see Network Tools.

Robust Network Layer

Robust Network Layer allows the network connections between the CommCell components to be retried at set intervals, if there is any loss of connectivity during an operation.

For detailed information on the robust network layer, see Robust Network Layer.