Oswan network6/2/2023 Users should be required to connect to a WAN via a VPN, including network devices that are connected to a WAN from a remote site. The use of a VPN helps create connectivity in a WAN and has the added benefit of encrypting data. End users who use WAN should also use firewalls and antivirus software to prevent unauthorized access or compromises of their devices. WAN security should be expanded to wherever end users employ their devices, including at home. SD-WAN CPE or platforms provide another level of application performance control through the use of lower-cost bandwidth connections, usually in the form of commercial internet services, along with traffic shaping and quality of service tools, to increase reliability. WAN optimization appliances use a variety of techniques to counteract them, including deduplication, compression, protocol optimization, traffic shaping and local caching. ![]() Latency and bandwidth constraints often cause enterprise WANs to suffer from performance issues. The latter function has historically required network managers to manually reconfigure their networks any time they wanted to shape the direction of traffic over multiple routes.
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