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Branch and multi-site networking with policy-based path selection across fibre, fixed wireless and LTE, so one degraded circuit does not take a site offline.
A traditional branch network sends everything back to a central site over a single private circuit. That is simple, and it fails in two ways: the circuit is a single point of failure, and cloud traffic makes a pointless round trip to head office and back out again, adding latency to exactly the applications people now use most.
SD-WAN separates the decision from the circuit. Several links — fibre, fixed wireless, LTE — are treated as one pool, and policy decides which traffic uses which: a voice call pinned to the lowest-jitter path, bulk backup pushed onto the cheapest, and everything failing over automatically when a link degrades rather than when it dies completely. That distinction matters, because most circuits deteriorate before they drop, and a system watching only for a dead link will keep sending calls down a path that has become unusable.
The other reason to deploy it is administrative. Configuration, policy and firmware are pushed centrally, so a new branch is provisioned from a template rather than by sending an engineer with a console cable.
ما يشمله هذا المجال
Multi-path transport
Fibre, fixed wireless and LTE bonded into one logical WAN, with per-application steering rather than a single default route.
Application-aware policy
Voice, video, ERP and general browsing each given the path that suits them, measured continuously on latency, jitter and loss.
Sub-second failover
Traffic moved off a degrading circuit before users notice, instead of after a link has failed outright.
Zero-touch branch provisioning
New sites brought up from a central template, so opening a branch does not depend on an engineer travelling to it.
Encrypted site-to-site
IPsec overlays between sites and into cloud regions, so the underlying transport does not have to be private to be safe.
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هذه هي الأسئلة التي تحدّد المواصفات. جهوزية الإجابات هي ما يحوّل المحادثة الأولى إلى عرض سعر فعلي.
- 01
What is actually running over the WAN?
Policy is only as good as the traffic profile behind it. Voice, video conferencing and a hosted ERP have very different tolerances, and the design should name them rather than treat the WAN as one pipe.
- 02
What circuits are available at each site?
SD-WAN needs at least two paths to do anything useful. In some locations the realistic second path is LTE or fixed wireless rather than a second fibre.
- 03
Where does internet traffic break out?
Local breakout is faster; central breakout is easier to inspect and control. This is a security decision as much as a performance one, and it should be made deliberately.