Техническая Спецификация для Cisco Cisco Application Extension Platform for SRE
Solution Overview
© 2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
Page 1 of 6
Survivable Core Network Services at the Branch Office
Cisco
®
and Infoblox optimizes service delivery of critical applications such as email
messaging, web, and IP phone services at remote offices with automated core network
services that offer local service resiliency, centralized visibility, and management.
Introduction
Reliable core network services at branch offices are essential to maintain application availability for
critical business processes. Even minor interruptions in Domain Name System (DNS) services may
lead to lost transactions at a retail store or at a bank branch office, resulting in lost revenue and
affecting employee productivity. As we continue to experience an explosion of IP addresses at the
enterprise, IT organizations are challenged to contain costs and maintain proper address
management for ongoing service delivery. Current solutions for providing core network services
force trade-offs in performance and availability in order to gain easier management.
The Cisco Application Extension Platform (AXP) and Infoblox vNIOS together offer a solution that
automates tedious core network service tasks, reducing errors while increasing flexibility. Branch-
office network infrastructure becomes more available, more dynamic, and easier to manage,
thereby enabling server consolidation.
Industry Trends
Today’s enterprises continue to see a six percent growth in branch offices. That growth means
more remote locations serving more people, who all need core network services to get work done.
Enterprise IT organizations continue to face pressure to extend services to remote sites without
increasing costs. An important strategy to address this problem is virtualizing the network and
consolidating servers at the data center. Centralizing core network services in the data center can
create problems for end users in branch offices, compromising performance because of WAN
latencies and making remote networks unusable when WAN links fail. This approach can have
major implications on a business’ profitability if core network services such as DNS, Dynamic Host
major implications on a business’ profitability if core network services such as DNS, Dynamic Host
Configuration Protocol (DHCP), IP address management (IPAM), and Remote Authentication In
User Service (RADIUS) are temporarily unavailable to regional and branch-office users.
On the other hand, hosting core network services on general-purpose servers at each remote site
poses security and manageability challenges
—and dramatically increases equipment and
operational costs.
Figure 1 illustrates core network services.