Form Factor

Plug-in module

Interfaces

1 x network - OC-3 - 1

Additional Information

ATM Edge Connectivity

LAN-to-LAN Routing

Serial & Legacy Concentration

VPN & Firewall Solutions

Voice & Fax Integration

Support SDH G.707 and G.708 specifications

The Cisco 3620 and 3640 will not support full 155-Mbps OC-3 line rates. The actual maximum supported speed ranges between 20 and 80 Mbps, depending on packet size

RFC 1483 support for multiple encapsulations over ATM

RFC 1577 support for routing over ATM

ATM service classes: UBR, UBR+, VBR-rt, VBR-nrt, ABR, and CBR (data only)

ATM Forum UNI 3.0, UNI 3.1, and UNI 4.0

AAL5 ATM adaptation layer

Up to 1024 simultaneous Virtual Circuits (VCs)

Layer 2 per-VC queuing and traffic shaping

ATM PVCs and SVCs

Permanent Virtual Paths (PVPs) (up to three)

LANE 2.0 client and server

F4 and F5 Operations and Maintenance (OAM) cell support

ABR SVCs

MPOA client and server

Tag Switching (MPLS when approved)

IETF PPP over ATM

Next Hop Resolution Protocol (NHRP)

ATM bandwidth (resource) manager

Interim Local Management Interface (ILMI)

ATM UNI 4.0 traffic management

Frame User to Network Interface (FUNI)

ATM Traffic-Shaping Feature:

• Advanced Bandwidth Management Feature
• ATM Layer Management

Data Link Protocol

ATM

Line Rate

OC-3