Information
The Cisco NM-1A-OC3MM-EP is a network module manufactured by Cisco Systems. It is designed to be used with Cisco routers and provides connectivity for OC-3 (Optical Carrier Level 3) multimode fiber optic networks. The "NM" in the model number stands for Network Module, indicating that it is a modular component that can be inserted into compatible Cisco routers to expand their capabilities. The "OC3MM" refers to the specific type of optical connection supported, which is OC-3 over multimode fiber. The "EP" at the end of the model number indicates that it is an enhanced performance version of the module.
Specifications
Management
- CiscoWorks2000 and CiscoWorks network management integration
- Enhanced setup configuration
- Text-based command-line interface (CLI)
Product Name
WAN Network Module
Product Type
Network Module
Compatibility
- Cisco 3620
- Cisco 3640
Shipping Weight
3 lb
Distance Support
1.24 Mile Multi-mode Fiber
Interfaces/Ports
1 x OC-3c/STM-1 WAN
Status Indicators
- Enabled - Network module is seated correctly and is communicating to the bus
- RCLK - Carrier detect
- FERF - Far end Rx failure
- OOF - Out of frame error condition
- AIS - Alarm indication
Connectivity Media
Multi-mode Fiber OC-3c/STM-1
Data Transfer Rate
155Mbps OC-3c/STM-1
Interfaces Details
1 x SC Duplex Connector OC-3c/STM-1 WAN
Network Management
- MIB II
- Synchronous Optical Network (SONET) MIB
- ATM MIB
- ATM ILMI MIB
- LANE MIB
- RFC 406, 1595, 1695, and 2233
Shipping Dimensions
2.5 Height x 10.5 Width x 17.75 Depth
System Requirements
- Maximum recommended on a single Cisco 3640 and Cisco 3620 is one
- Max two high-speed network modules in a Cisco 3640 (includes Fast Ethernet, ATM, HSSI)
- Requires Plus feature sets of Cisco IOS Release 12.0(3)T or above
Additional Information
- NM-1A-OC3MM-EP provides a multimode (MM) fiber uplink port with enhanced performance
- 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 Standards Supported
- Multiprotocol encapsulation with support for Logical Link Control/Subnetwork Access Protocol (LLC/SNAP) encapsulation and VC multiplexing (Internet Engineering Task Force [IETF] RFC 1483)
- Classical IP and Address Resolution Protocol (ARP) over ATM; client and ARP server (IETF RFC 1577; IETF RFC 1755; IETF RFC 1626)
- MPOA for IP, Novell IPX, DECnet, AppleTalk Phases 1 and 2, Connectionless Network Service (CLNS), Xerox Network Systems (XNS), and Banyan VINES via IETF RFC 1483
- ATM Forum LAN Emulation (LANE) including LEC, BUS, LES, and LECS
- IETF PPP over ATM
- MPOA
- Tag Switching/MPLS (when approved)