Remote Applications Drive Bandwidth Demand
Remote Applications Drive Bandwidth Demand
Multiprotocol Label Switching is not adequate to meet the demands created by remote applications, which are driving the requirements for greater bandwidth.
Data Is Exploding Globally
Data is exploding worldwide, driven by big data, the internet of things (IoT), video, the proliferation of network-attached and wireless devices, virtualization, and public and private cloud use.
Trends Affecting WAN Traffic
Trends Affecting WAN Traffic.
Rising adoption of cloud services.
Data center consolidation.
Globalization.
Increased data volume.
Outsourcing.
Bring your own device (BYOD)
Increase in WAN Traffic Across Verticals
Software and internet verticals combined show the greatest increase between 2015 and 2016, growing from 307% to 526%. Manufacturing rose from 296% to 441%, and Financial Services jumped from 111% to 371%.
HTTP and HTTPS Dominate
Nearly 50% of today’s enterprise traffic is a combination of HTTP and HTTPS, as applications continue to transition from monolithic on-premises models to web-based consumption and delivery models.
Bandwidth at Non-HQ Sites
Globally, only 12% of respondents have links with bandwidths that are less than 10 Mbps, and 25% have more than 100 Mbps links. In developing countries, access-site bandwidth is 2 Mbps.
Response Times Vary With Distance
TCP application responses times have a variation of 200%, depending on the distance between sites. As the distance increases, the problem gets worse.
Infrastructure Affects Response Times
Inconsistency in application response times depends on network infrastructure. In the Middle East and parts of Asia, conductivity makes matters worse, resulting in response times as high as 153% and an average application response time of one second.
Top Types of WAN Traffic
HTTPS: 28%.
HTTP: 19%.
CIFS: 16%.
SSH: 13%.
FTP: 5%
ISP Handoff Gets Worse
Internet bandwidths and quality are increasing at the WAN edge and over short distances. But the handoff between ISPs over the internet or IP-VPN is getting worse, affecting the performance of business-critical applications.
