Информационное Руководство для Cisco CiscoWorks LAN Management Solution 4.0

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The RSAF also uses a Cisco ONS 15454 SONET Multiservice Provisioning Platform, 
supporting common interfaces such as DS-1, DS-3, and EC-1. In addition, the RSAF 
operates MPLS Traffic Engineering and its Fast Reroute Link Protection feature to 
improve resilience and maintain quality of service by routing traffic along the least 
congested links. 
In the campus networks, RSAF built three layers: core, distribution, and access. 
The design incorporates MPLS software running on the core and distribution layers 
to support PE and PE-Aggregation (PE-Agg) layers functionalities. Each PE-Agg or 
PE consists of two Cisco Catalyst 6509E Series Switches configured as a Virtual 
Switching System (VSS) and forming eight PE-Agg and 50 PE systems in total, in 
addition to 38 PEs routers for remote sites around KSA. The access layer comprises 
Cisco Catalyst 3750E and 3750X Series Switches, ensuring direct Layer 2 logical 
connections from PEs and providing the network with almost permanent stability 
and convergence through the elimination of cloud routing table updates. 
The equipment is managed using a Cisco Prime LAN Management Solution, in 
addition to other third-party products. The network upgrade covers 30 RSAF sites 
and spans across the KSA with connections to organizations such as the army 
and navy, other forces in the Gulf region, and even large suppliers such as BAE 
Systems. Traffic is segmented using VLANs and in some cases also VPNs, partly 
for security reasons and partly to provide quality of service.
Results
The RSAF has met its main objectives and goals and eliminated its challenges. The 
Cisco solution has allowed the RSAF to realize optimum value from its network 
investment in a way that protects against technology obsolescence and responds 
to planned and unforeseen future IT requirements. At the current time, the RSAF 
believes that no other model in the market could have addressed these challenges, 
enabled the new features it needed, and performed so well.
Scalability and flexibility can be achieved with a few line commands or by adding 
small inexpensive module cards, without compromising RSAF security policy. At 
the same time, security, manageability, and control have been maximized thanks to 
built-in hardware security and manageability tools. 
Unlike before, the number of engineers required to manage cloud services has 
become fixed and will not change irrespective of whether new customers or services 
are added. Power consumption, cooling, and space requirements have dramatically 
reduced and, similarly, are almost fixed independent of future expansions.
The RSAF is better placed to serve various internal departments with a service 
provider model and customer-centric approach. The Cisco network’s access layer 
provides direct Layer 2 logical connections which almost completely negate the need 
to make routing changes and updates, in turn improving stability and convergence. 
This new operational model includes a built-in selective reachability mechanism for 
security between MPLS-based VPNs. This important new feature improves routing 
processing security and is traditionally only found in public service providers networks.
By centralizing and standardizing IT operations on a single Cisco network foundation, 
the RSAF is benefiting from reduced costs and administration effort, as well as 
having simpler supplier and contract arrangements. Voice communications now have 
full redundancy between sites, enabling the RSAF to cut costs and management 
complexity with a single point of management.
The RSAF has maximum management control with minimum staff and operating 
expense. For example, it can now easily set up Layer 1 and Layer 2 VPNs, and has 
been able to reduce the number of external encryption devices that it needs at 
each site, from more than 20 to just two. The user experience has been enhanced 
thanks to improved network performance, enabling information exchange across 
the RSAF, while downtime has been vastly reduced with improved automation. 
Customer Case Study
© 2013 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. 
 
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