Белая книга для Cisco Cisco ASA 5585-X Adaptive Security Appliance
Cisco and Public Sector Cyberdefense
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Recovery in the WAN
Many of the recovery technologies previously discussed, such as NSF/SSO, ISSU, FPM, VSS, and EEM, also apply
and can be utilized at the headquarters WAN edge, for either Internet or site-to-site remote agency office connectivity.
Another problem to solve is the remote agency offices themselves. If they are cut off from the headquarters site, how
effectively can they operate in stand-alone mode?
and can be utilized at the headquarters WAN edge, for either Internet or site-to-site remote agency office connectivity.
Another problem to solve is the remote agency offices themselves. If they are cut off from the headquarters site, how
effectively can they operate in stand-alone mode?
The typical deployment for remote agency offices is a
Cisco Integrated Services Router, with either a Cisco
EtherSwitch
®
Service Module or a Cisco Catalyst Series Fixed switch. Figure 9 shows the different models in the
integrated services router portfolio.
The Cisco integrated services routers are known for the capability to easily integrate the functions of standalone
network appliances and components into the chassis itself. By integrating multiple branch services into a single
platform, the Cisco integrated services router series can help your organization optimize branch services and deliver
a consistent user experience with a lower total cost of ownership. Built on a foundation of comprehensive routing and
switching management capabilities, Cisco integrated services routers help maximize the power of your organization’s
network with unified network services, integrated security, mobility, and application intelligence.
network appliances and components into the chassis itself. By integrating multiple branch services into a single
platform, the Cisco integrated services router series can help your organization optimize branch services and deliver
a consistent user experience with a lower total cost of ownership. Built on a foundation of comprehensive routing and
switching management capabilities, Cisco integrated services routers help maximize the power of your organization’s
network with unified network services, integrated security, mobility, and application intelligence.
One such example of Cisco integrated services router series service integration and recovery is
Survivable Remote
Site Telephony (SRST). This mode helps guarantee call quality and preserves communication locally during
network outages, promoting higher availability. This complements other availability features like such as Unified CME
autoregistration and Cisco Unified CME DSP-based conferencing. Voicemail and automated attendant services can
be delivered directly inside the Cisco integrated services router using Cisco Unity
network outages, promoting higher availability. This complements other availability features like such as Unified CME
autoregistration and Cisco Unified CME DSP-based conferencing. Voicemail and automated attendant services can
be delivered directly inside the Cisco integrated services router using Cisco Unity
®
Express or delivered centrally
using Cisco Unity software. Customers can also implement Secure SRST to enable authentication and encryption
support for both signaling and media transmission during a WAN outage.
support for both signaling and media transmission during a WAN outage.
Cisco integrated services routers also offer several other integrated security capabilities to protect voice and unified
communications applications. Advanced VPN and Cisco IOS Firewall features deliver secure, high-quality voice
and video and protect against call eavesdropping, toll fraud, and DoS attacks. Cisco IOS Firewall also transparently
supports voice traffic, including application-level conformance of media protocol call flow and the associated
open channels. It supports voice protocols such as H.323v2, v3, and v4; Skinny Client Control Protocol (SCCP); and
Session Initiation Protocol (SIP) and assures protection of unified communications components such as Cisco Unified
Communications Manager, Cisco Unified Border Element, and their endpoints. By enabling advanced teleworking,
these solutions provide business resilience during disasters and pandemics.
communications applications. Advanced VPN and Cisco IOS Firewall features deliver secure, high-quality voice
and video and protect against call eavesdropping, toll fraud, and DoS attacks. Cisco IOS Firewall also transparently
supports voice traffic, including application-level conformance of media protocol call flow and the associated
open channels. It supports voice protocols such as H.323v2, v3, and v4; Skinny Client Control Protocol (SCCP); and
Session Initiation Protocol (SIP) and assures protection of unified communications components such as Cisco Unified
Communications Manager, Cisco Unified Border Element, and their endpoints. By enabling advanced teleworking,
these solutions provide business resilience during disasters and pandemics.
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