Home > Storage > PowerScale (Isilon) > Product Documentation > Protocols > Dell Multipath Client Driver: Installation and Configuration Guide > Overview
Since NFS is a network protocol, when it comes to investigating, troubleshooting, and debugging multipath driver issues, one of the most useful and revealing troubleshooting tools is a packet capturing device or sniffer. These provide visibility into the IP packets as they are transported across the Ethernet network between the Linux client and the PowerScale cluster nodes.