Tricia Png, Silver Peak's director for Asia
WAN optimisation is said to be a key enabler for data protection, server consolidation and employee collaboration. In an interview with bankITasia, Tricia Png, Silver Peak's director for Asia further explains how the technology will benefit financial institutions. She also talks about the drivers and obstacles to WAN optimisation adoption as well as the factors to consider before embracing the technology.
Tell us more about WAN optimisation.
The wide area network (WAN) connects data centres, remote offices and the cloud. WAN optimisation is designed to overcome the bandwidth, distance and quality limitations that are inherent in today's WANs.
As data and applications become more centralised and users become more distributed and further from that data, WAN optimisation becomes the critical element to ensuring the productivity of a distributed workforce. WAN optimisation thus should enable fast, secure access to critical applications over any distance.
While WAN optimisation features will vary from vendor to vendor, core WAN optimisation capabilities have included some form of compression, deduplication, error correction, and TCP acceleration. However, with the increased proliferation of cloud services in today's enterprises, WAN optimisation should now ideally include:
- Advanced WAN routing to dynamically direct traffic over an optimal path and to route traffic over the shortest path to an application, including Software as a Service (SaaS) applications.
- Simplified IPsec VPN security without any performance degradation, using
- AES-256 encryption.
- WAN compression and deduplication to inspect all traffic in real-time, eliminating repetitive transmission of duplicate data.
- Path conditioning to reconstitute dropped and out-of-order packets in real- time without re-transmission.
- Traffic shaping that prioritises critical traffic classes while constraining recreational or personal-use traffic classes.
- Comprehensive visibility and orchestration of WAN optimisation deployments with advanced application classification and detailed performance metrics across enterprise and cloud applications.
Recent advances in WAN technology have enabled WAN acceleration to transition from a tactical fix to a strategic and more flexible IT investment. Virtualisation has driven most of the advancement in this area, and customers today demand virtual WAN optimisation options to counter the traditional, more expensive hardware-based deployment model.
Why should financial institutions in Southeast Asia and Asia leverage it?
Financial institutions typically have billions in assets that need to be protected. Adding to that is the demand for real-time remote access to several business critical applications, which can be located within the country or across branch and regional offices. Financial institutions also demand speed, up-to-date and accurate information, and the capability to protect and recovery data in the event of a disaster. This often requires high-performance replication of several terabytes or even petabytes of data across hundreds or even thousands of miles.
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