Working with Wiretap > Configuring Wiretap and Lustre >

# Configuring Dual Network Support

If your facility has both a GigE network and an InfiniBand network, you can configure Wiretap to use both. The Wiretap server will then make use of the high-bandwidth network for moving media, greatly improving network performance and increasing reliability. The behaviour is transparent to end-users.

To configure the Wiretap server to use InfiniBand for media transfers:

1. On the workstation hosting the Wiretap server, open the Wiretap configuration file, wiretapd.cfg, using a text editor.

   The file is located in the following directory:

   /usr/discreet/sw/cfg

2. Scroll down to the [Server] section.

   This section lists the IP addresses of the network interfaces used by Wiretap, in the order in which the connections are attempted.

3. In the case of a facility with both a GigE and an InfiniBand network, the IP address of the InfiniBand network must be first in the list, at IP0.

   In the following example, the InfiniBand network IP address is 10.10.11.213, and the GigE network IP address is 192.168.129.3:

   [Server]

   IP0=10.10.11.213

   IP1=192.168.129.3

4. Make the appropriate entries for your own networks, then save and close the file.
5. You must restart the Wiretap server for your changes to take effect:

   /usr/discreet/sw/sw_restart