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Three new 155 Mbps ATM OC-3 network modules are available for the 3600 series with Cisco IOS release 12.0(3)T. These 3 network modules support STS-3c and STM-1 framing standards over Multimode, Singlemode Intermediate reach, and Singlemode Long reach fiber optic interfaces. All three versions consist of a single-port network module with SC connector types that support ATM Forum standard AAL5 for data only traffic. Voice-over-IP (VoIP) and H.323 over ATM can also be supported with VBR-rt Class of Service using SVC`s with the currently available analog Voice/Fax network modules and Voice Interface Cards.
The OC-3 ATM network modules are only supported on the 3600 Series. 12.0(3)T or above Cisco IOS Plus feature sets are required to support the ATM network modules. A maximum of one ATM OC-3 network module is recommended on the 3660, 3640, or 3620. There are no additional Flash or DRAM memory requirements, other then minimum memory requirements specified for the Cisco IOS 12.0(3)T Plus feature sets.
The ATM OC-3 network modules are ideal for connecting directly to ATM fiber Wide Area Network (WAN) at large remote Branch office sites to a central site via public or privately owned ATM WAN; or to provide LAN connectivity to a co-located Cisco ATM Switch. Voice over IP (VoIP) over ATM applications can be supported with VBR-rt Class of Service using SVCs and the currently available Voice/Fax network modules and Voice Interface Cards. Support is also provided for other advanced ATM Layer 2 features such as IETF PPP over ATM, Tag Switching, Multiprotocol over ATM (MPOA), and NHRP enhancing ATM performance for Enterprise and Service Providers alike.
Key Features of ATM OC-3 Network Modules in IOS Release 12.0(3)T
ATM Service Classes UBR, UBR+, VBR-rt, VBR-nrt, ABR, and CBR
UNI 3.0, 3.1 and 4.0 Traffic Management
RFC 1483 and 1577
Layer 2 per-VC Queuing and Traffic Shaping
Up to 1024 simultaneous VCs
F4/F5 Operations and Management (OAM) cell support
PVCs and SVCs
LANE 2.0 Client and Server
FUNI
Tag Switching
IETF PPP over ATM
MPOA Client and Server
ILMI
ABR SVC`s
ATM Bandwidth Manager
VP Tunnels (up to 3 Permanent Virtual Paths, PVPs)
NHRP
Early Packet Discard
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Product Number |
Cisco 2600 |
Cisco 3620/40 |
Cisco 3660 |
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NM-1A-OC3MM NM-1A-OC3SMI NM-1A-OC3SML |
No |
12.0(3)T |
12.0(5)T |
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Description |
Product Order Number |
|---|---|
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Single port ATM OC-3 Multimode network module |
NM-1A-OC3MM (=) |
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Single port ATM OC-3 Single-Mode Intermediate Reach network module |
NM-1A-OC3SMI (=) |
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Single port ATM OC-3 Single-Mode Long Reach network module |
NM-1A-OC3SML (=) |
The ATM OC-3 network modules are ideal for connecting directly to ATM fiber Wide Area Network (WAN) at large remote Branch office sites to a central site via public or privately owned ATM WAN; or to provide LAN connectivity to a co-located Cisco ATM Switch. Voice over IP (VoIP) over ATM applications can be supported with VBR-rt Class of Service using SVCs and the currently available Voice/Fax network modules and Voice Interface Cards. Support is also provided for other advanced ATM Layer 2 features such as IETF PPP over ATM, Tag Switching, Multiprotocol over ATM (MPOA), and NHRP enhancing ATM performance for Enterprise and Service Providers alike.
Cables: Standard fiber optic cable with SC connectors, not available by Cisco
Restrictions:
Only supported in 3620, 3640, and 3660
Maximum of one recommended per 3600
Requires Cisco IOS Plus Feature sets
No additional DRAM memory requirements
No slot placement restrictions on either platform
Cables: Standard fiber optic cable with SC connectors, not available by Cisco
Restrictions:
Only supported in 3620, 3640, and 3660
Maximum of one recommended per 3600
Requires Cisco IOS Plus Feature sets
No additional DRAM memory requirements
No slot placement restrictions on either platform
Cables: Standard fiber optic cable with SC connectors, not available by Cisco
Restrictions:
Only supported in 3620 and 3640
Maximum of one recommended per 3600
Requires Cisco IOS Plus Feature sets
No additional DRAM memory requirements
No slot placement restrictions on either platform