This review is part of a KVM switch grouptest

One of two KVM-over-IP switches in this KVM grouptest, the DSR1031 from Avocent is a lot more flexible and expandable than standard analogue products, but is still quite easy to set up and use.

The switch itself can be rack mounted with a choice of PS/2 or USB connectors for the local console. A single Ethernet port connects to the network and alongside there is a pair of connectors to remotely manage power using Avocent’s optional SPC distribution products.

Remote servers are linked using custom DSRIQ modules. Little bigger than a matchbox, these attach to keyboard, video and mouse ports with a UTP port to connect back to the switch using ordinary Ethernet patch leads (up to 10 metres). DSIRQ modules are available for PS/2, USB and Sun keyboards/mice and also serial devices.

They are a very neat and easy solution to reduce cabling bulk, but cost much more than any of the other products we tested.

The DSR1031 can be used like a conventional KVM, by sitting in front of the local console and selecting attached servers using hotkeys or an on-screen menu system called Oscar. For maximum flexibility, administrators can also link to the Avocent switch remotely.

Some switches do this via a browser but this had optional virtual media facilities and could only be managed using Avocent’s custom DSView software (costing about £500 + VAT per user). This allows multiple switches to be managed together with comprehensive security facilities available to restrict access.

Only one console, local or remote, can be active on this model but two- and four-user systems are available if preferred. As with other IP-based products, performance is just as sharp as with an analogue KVM.