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Figure 1: ATM OC-3 Network Modules
New Features
• RFC 1577 support for routing over ATM
• RFC 1483 support for multiple encapsulations over ATM
• ATM Forum UNI 3.0, 3.1, and 4.0
• ATM PVCs and SVCs
• LANE 2.0
• Layer 2 per-VC queuing
• Up to 1024 simultaneous Virtual Circuits (VCs)
• AAL5 ATM adaptation layer
• ATM Service classes: UBR, UBR+, VBR-rt, VBR-nrt, ABR, and CBR (data only)
• Permanent virtual paths (PVPs)
• ATM bandwidth (resource) manager
• MPOA client and server
• Tag Switching (MPLS when approved)
• IETF Point-to-Point Protocol (PPP) over ATM
• NHRP (Next Hop Resolution Protocol)
• F4 and F5 operations and management (OAM) cell support
• Interim Local Management Interface (ILMI)
System Requirements
• Supported on 2691, 3600 Series and 3725; EP version supported on 3745
• Requires “Plus” Feature sets of IOS Release 12.0(3)T or above
• Maximum of one ATM OC-3 network module supported on 2691, 3600 and 3725. Maximum of two ATM
OC-3 network module supported on 3745
• No additional Flash or DRAM memory requirements other then the Cisco IOS release 12.0(3)T Plus feature set
specified minimum memory requirements
• Operates in conjunction with all currently available Cisco 2600, 3600 and 3700 network modules and WAN
interface cards (WICs)
• No slot placement restrictions on all platforms
• Recommended maximum of two high-speed network modules in a Cisco 3640 (includes Fast Ethernet, ATM,
HSSI)








