Havas’ Network had also grown to include multiple Internet services which were operated by many of the individual business units. As a result of this, the company was having to manage multiple firewalls and Internet service suppliers which was proving to be an area of concern.
The business wanted to consolidate its Network of disparate Wide Area Networks (WANs) into one unified platform, whilst maintaining security between business unit communities. At the same time it wanted to centralise its Internet provision and security services so the company could eliminate a complex array of providers, bandwidths and underlying technologies.
Single access pointsTo accommodate Havas’ requirements, we deployed a multi-site Virtual Private LAN Service (VPLS) WAN solution using single, converged connections from each of the Havas offices. Each Havas business unit is now supported by our resilient Next Generation Network.
VPLS communitiesTo consolidate Havas’ disparate WANs we needed to discover which agencies needed to be able to talk to each other. Once we had this information, we were able to group agencies into different VPLS pools to create mini-WANs. The fact that we were able to maintain LAN and WAN separacy means the solution is operationally simplistic and it gives Havas maximum control.
Centrally hosted hardware & servicesWe co-located the firewalls across two separate datacentres using VLANs into the firewall. This means Havas can now benefit from centrally hosted firewalls which it has complete control over. Havas are able to change security policies and routing itself from one central point. The company also has centrally hosted Internet connectivity removing considerable complexity, duplication and cost from its wide area Networking.
ResiliencyOur pioneering NGN design in this instance was based on providing resilient and automated failover to secondary circuits at each site, whereby the local router will switch traffic automatically into the secondary circuit in the event of a failure on the primary circuit. In addition, we provided resilient connections to the centralised firewall to achieve automatic failover on the Internet service.
Convergence & separationWe created one unified Network but managed to maintain 100% security and separation for its individual business units. Most importantly Havas is in control and unnecessary cost and duplication have been eliminated.
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