ISP system engineer with great experience in design ,operate & troubleshoot complex ISP networks and other networks. i have implemented ISP system from scratch including below : >Implementing L2TP tunnel between LAC & LNS routers for pppoe calls with AAA with radius servers and integrating it with Cisco routers. >implementing Routing and routing protocols between routers with best design for reliability and loop avoidance. >building and compiling squid on that support best options for ISP, such as Tproxy,WCCP,SMP,Web filtering & bandwidth saving. > Implementing BGP & Cisco QOS , with best solutions for ISP especially for Youtube ,VOIP, Browsing. >Implementing IPV6 networks for ADSL customers and design infrastructure for ISP network >solving High CPU reasons on Routers & switches and offering solutions that require less hardware consumption for Cisco Equipment. >Implenting Elastix VOIP servers and fix all issue of echo and interrupt with full security solutions. >Implementing Linux DNS servers including filtering based DNS. >Implementing windows server 2008 domain controllers and DNS for small business with file sharing and security >Implementing PRTG Monitoring system for system with sms for urgent problems