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Virtual router: Software applications that perform the same functions as a hardware router – this is typically used in software-defined networking (SDN) What are some other functions of routers? For example, a smartphone that can share its 4G/5G connection with other users basically acts like a wireless router.
It can also encompass a constantly growing laundry list of additional features such as firewall as a service (FWaaS), browser isolation, sandboxing, data loss prevention (DLP), and web application firewall (WAF). As previously noted, SASE adds SD-WAN. IDC splits the difference between SASE and SSE.
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