In the first blog post in this two-part series, I covered the various ways that you can on-ramp traffic to a cloud-based secure web gateway (SWG), and why having this flexibility allows organizations to handle a work-from-anywhere workforce as well as diverse security use cases.  \r\n Along with these changes in working practices, organizations are rapidly moving from a data center–centric model to software as a service (SaaS) and infrastructure as a service ( Iaas ) models. Both SaaS and Iaas models dramatically reduce the amount of traffic hairpinning back to data centers and increase traffic sent directly to the public internet.  \r\n Changing traffic patterns \r\n This change in traffic has driven organizations to examine how they re-architect their existing wide area networks (WAN) to cope with this new paradigm.  \r\n In the past, companies used expensive multiprotocol label switching (MPLS) links to connect branch locations to head offices, and all internal application…