Extreme Networks ExtremeWorks Premier Plus - Extended service agreement - advance hardware replacement - 1 year - shipment - 24x7 - response time: 4 h - for P/N: A4H124-24P Premier support from Extreme Networks, is a proactive, high touch post sale support service that assists customers in supporting their Extreme Networks products and network. All resources and deliverables are designed to manage your day-to-day technical needs, provide analysis and recommendations while building strong customer relationships, all focused on keeping your network performing at optimal levels.