Welcome to the ZyXEL Networking Glossary - your definitive source for descriptions of networking terms and ZyXEL's product features.
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Vendor Specific Attributes (VSAs), as defined in RFC 2865, are configuration data sent between a RADIUS server and a network access device (for example, an Ethernet switch). A company can create VSAs to increase the functionality of a RADIUS server. For example, VSAs can be used to change bandwidth management settings on a network switch. See RADIUS.