bids are invited for concurrent ssl vpn users ( numbers ) should support minimum 5000 concurrent vpn users from day one. 2 ssl vpn concurrent user scalability scalable up to 20, 000 3 ssl throughput ( maximum ) 20 gbps or higher 4 hardware based ssl acceleration yes 5 ram ( gb ) 48 gb or higher 6 input - output ports 4 x 1 gbps sfp and 4 x 10 gbps sfp+ fiber ports from day one and shall support 4x40g qsfp+ ports on the same appliance for future use. 8 clustering ( active-standby / active-active ) up to appliances 10. should support active-active and active-standby configuration when deployed in dual mode and should have seamless takeover in-case if one device fails. 9 user based access control ad, ladp query authentication ldap, radius, oauth 11 os compatibility , the solution should be able to support robust endpoint posture inspection, and deny access for non-compliance endpoints. able to perform antivirus / malware software checks, including checks for enabled state, engine & database version, last scan, and last update of the antivirus software. able to perform domain check to auto connect to vpn when outside the office network. able to perform ip address / geolocation check to restrict access from unwanted locations. able to perform operating system, windows registry, file or process checks. able to check if mobile devices have been jail broken. 13 application layer encryption the solution should support app-level field encryption to protect data and credentials as they pass between the user and server. 14 multi factor authentication must support multi factor authentication by delivering soft tokens using sms and email by integrating with sms gateway. the solution should be able to easily integrate with third party soft and hard tokens ( like rsa etc. ) from day one. 15 power supply dual 16 on site oem warranty ( years )