During an check-up on a network, I looked at the configuration of two HP ProCurve 5400zl switches. One of these switches functions as the core switch and default gateway for the various VLANs. To improve the availability and redundancy of the default gateway, I mentioned the configuration of VRRP (Virtual Router Redundancy Protocol).
On of the two core switches had the opportunity to enable VRRP with the command: router vrrp. The other core switch didn’t had the option to enable VRRP. I found this a bit strange, because both switches have the same hardware properties and firmware version. I spent some time looking at the HP Procure website.There I noticed that theHP ProCurve 5400zl switches require a Premium License to enable VRRP. I didn’t even knew that HP ProCurve switches had different kind of licenses, but after contacting the supplier and obtaining the license, I could enable VRRP and improve the availability of the network.