06 February 2018
| Natalie Bannerman
Cisco's 7th annual Global Cloud Index (2016-2021) claims that data centre traffic will reach 95% by 2021, up 7% from 2016.
.According to the report, consumer
and business applications are contributing to the growing
dominance of cloud services over the internet.
Commenting on the findings, Kip Compton, vice president of
Cisco's cloud platform and solutions group, said: "Data centre
application growth is clearly exploding in this new multi-cloud
world. This projected growth will require new innovations
especially in the areas of public, private and hybrid
The report found that video streaming, social networking and
Internet search are the most popular applications for
consumers. For businesses, enterprise resource planning (ERP),
collaboration, analytics and other digital enterprise
applications are the most popular.
The biggest takeaway from the report is the prediction that
global cloud data centre traffic will represent 95% of all data
centre traffic by the year 2021. A figure that was only 88% in
2016. In addition the report suggests that global cloud data
centre traffic will reach 19.5 ZB per year by 2021, up from 6.0
ZB per year in 2016.
Where there was once concerns over security over the
adoption of cloud, the study says that due to Improvements in
data centre governance and data control, the risks to
enterprises using the cloud has been minimised. Advancements in
security coupled with the benefits of cloud computing such as
scalability and economies of scale have all been drivers in the
growth of the cloud, as indicated in the report. In addition,
with the growth of IoT applications such as the smart cars,
smart cities, connected health and digital utilities, all
require scalable computing and storage solutions to meet the
growing data centre demands. The report indicates that IoT
connections will reach 13.7 billion, up from 5.8 billion in
Another key finding from the
report, states that by 2021 there will be approximately 628
hyperscale data centres worldwide, up from only 338 in 2016.
Additionally, these new hyperscale facilities will support: 53%
of all data centre servers up from 27% in 2016, 69% of all data
centre processing power up from 41% in 2016, 69% of all data
centre processing power up from 41% in 2016 and 55% of all data
centre traffic up from 39% in 2016.
Other figures contained in the study, say that by 2021:
- 94% of workloads and compute instances will be processed
by cloud data centres, the remaining 6% will be processed by
traditional data centres.
- Globally, the data stored in data centres will nearly
quintuple to reach 1.3 ZB.
- The amount of data stored on devices will be 4.5 times
higher than data stored in data centres, at 5.9 ZB.
- Big data will account for 20% of traffic within data
centres, compared to 12% in 2016.
- Video streaming will account for 10% of traffic within
data centres, compared to 9% in 2016.
- Video will account for 85% of traffic from data centres to
end users, compared to 78% in 2016.
- Search will account for 20% of traffic within data
centres, compared to 28% in 2016.
- Social networking will account for 22% of traffic within
data centres, compared to 20% in 2016.
- As for SaaS, 75% of the total cloud workloads and compute
instances will be SaaS workloads and compute instances, up from
71% in 2016.
- 16% of the total cloud workloads and compute instances
will be IaaS workloads and compute instances, down from 21% in
- 9% of the total cloud workloads and compute instances will
be PaaS workloads and compute instances, which is up from 8% in
In December, Cisco partnered with the Zain
Group to extend the latter's IP/MPLS network with the
latest Cisco technologies. The news sets up the network for
future opportunities and new business models, as well as
allowing Zain’s network, which serves 45 million
customers across the Middle East and North Africa, to meet the
ever increasing demands of devices and growing connections.
Cisco Global Cloud Index,