Ing Case Study Ing's Network Case Study

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Tunneling is defined as the organization of data into secured frames or packets, defined by a secured preamble or transit network frame and transit internetwork header (Cisco, 2010). ING needs to take these steps into account in determining if the extranet will actually be as effective as they hope it will; VPN networks running SSL connections can be bandwidth intensive if there are high percentage of transaction traffic on them (Cisco, 2010). ING would be best advised to complete several pilots of the extranet, varying options in the VPN configuration parameters and the SSL options to ensure optimal performance while also gaining the greatest level of speed as well. Figure 1, How VPN Tunnels Work, illustrates this concept of how Transit Internetwork Headers are critical for securing a VPN tunnel that will send data, and in the case of ING, policy requests, from brokerage partners to the mainframe in CT and back. ING needs to also interpolate the effects of running TN3270 emulation sessions over a VPN configured for SSL security. These are all burdens on the network that will impact its performance and become amplified in the broader, global Internet's performance is slowed down and not working at optimal speeds.

Figure 1: How VPN Tunnels Work

Source: (Cisco Tutorial, 2010)

Extranet Topology Critique

The extranet gives ING an increase in speed, yet additional testing is needed to see the extent to which SSL-based connections over VPN running TN3270 emulations will impact overall performance. The extranet and the download of the browser plug-in is still an interim solution to a much more fundamental problem, which is the performance degradation the network is experiencing from converting TCP/IP traffic to SNA for eventual delivering to the mainframe in CT. What is needed is a global Web platform in world headquarters that supports entirely Web-based applications with configured integration points to knowledge and data repositories in Canada.

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The use of this more global approach to Web-based applications for brokers hosted directly from CT will drastically reduce the time required to get policy information retrieved and used. The bottom line is the extranet is a stop in the right direction yet it is not enough to give ING a global competitive advantage where it needs it most -- in providing responsive support to its brokerage partners online 24/7.

Conclusion

ING is taking baby steps to where it needs to go from an architectural standpoint, and need to think more strategically and boldly. First, the extranet is a stop-gap measure; what is clearly needed are entirely Web-based applications running in AJAX or JAVA for optimal performance, hosted from corporate, with integration links via XML to the data repositories in Canada. ING needs to get away from the TCP/IP to SNA gateway and embrace a more Web-centric platform where HTTP and Secured HTTP, XML, and XBRL become the integration points. Running these next-generation Web applications in secured VPN connections via SSL will be more agile, scalable, secure and reliable over time......

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