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Feature Benefits
ATM Features
ATM Traffic Unspecified Bit Rate
(UBR), Non-Real-Time Variable Bit
Rate (VBR-nrt), Real-Time Variable Bit
Rate (VBR-rt), and Constant Bit Rate
(CBR) with Traffic Shaping
• Helps ensure QoS guarantees for real-time traffic, with ability to send traffic over the appropriate
virtual circuit to provide ATM-level shaping and ensure that no head-of-line blocking occurs between
circuits of different or equal traffic classes
Up to 23 Virtual Circuits per WIC
• Helps enable more sessions at a time; is relevant for small and medium-sized businesses and small
branch offices with 50 to 200 employees
• Supports per-virtual circuit queuing in Cisco IOS Software releases 12.2(2)XK, 12.2(4)XL, 12.2(13)T,
12.2(8)YN, and subsequent releases (per-virtual circuit queuing not supported in Cisco IOS Software
releases 12.2(4)T, 12.2(8)T1, or 12.2(11)T)
Point-to-Point Protocol (PPP)
over ATM
• Helps ensure compatibility with existing network
F5 OAM Continuity Check (F5OAMCC)
and Loopback
• Supported in Cisco IOS Software releases 12.2(4)XL, 12.2(11)T2, 12.2(8)YN, and subsequent
releases
Interim Local Management
Interface (ILMI)
• Supported in Cisco IOS Software releases 12.2(4)XL, 12.2(13)T, 12.2(8)YN, and subsequent
releases
PPP over Ethernet Client
• Meets service provider requirements and eliminates the need for additional network software on LAN-
connected client PCs
RFC 2684 Routing
• Supports RFC 2684 Routing
ATM Oversubscription for DSL
• Allows bandwidth oversubscription to be configured for VBR and UBR+ service classes
• Supported in Cisco IOS Software releases starting with 12.4(2)XA; also available in Release
12.4(3rd)T and above
Multiqueue
• Multiqueue for DSL lines helps enable a priority and a regular (nonpriority) queue for traffic streams
• Supported in Cisco IOS Software releases starting with 12.4(2)XA; also available in Release
12.4(3rd)T and above
Device Integration
Integrated Router, Voice Gateway,
Firewall, and VPN in a Single Device
• Reduces costs and simplifies management
IP QUALITY OF SERVICE
The Cisco 1800, 2800, 3800, 1700, 2600XM, 2691, and 3700 series with a G.SHDSL WIC support the integration of voice and data over the same
G.SHDSL circuit using VoIP. The Cisco 2800, 3800, 2600XM, 2691, and 3700 support VoATM, thus allowing for further reduction of recurring
monthly WAN charges. Table 2 describes all the IP QoS features that are supported on the new WIC. For more information about IP QoS, refer to
the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122limit/122y/122yn8/ft_ipqos.htm
(10 pages)
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