Cisco 7600 Series 2 & 4-Port OC-12c/STM-4 POS/SDH OSM
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High-Density, OC-12c/STM-4 Connectivity for Consolidated Service Provider POPs with Service Delivery over IP or MPLS Core Networks
Figure 1
4-Port OC-12c/STM-4 POS Enhanced OSM for Cisco 7600 Series Router
The rapid growth of Internet-enabled user applications has led to an increase in the bandwidth provisioned through service provider networks. To accommodate this growth, service providers are consolidating existing network architectures that deliver traditional Layer 2 WAN services, such as Frame Relay and ATM, with architectures that deliver Layer 3 WAN services, such as high-speed Internet access and Layer 3 VPNs. This network consolidation enables service providers to optimize their capital investments so that all such expenditures simultaneously benefit all network services.
Achieving network consolidation is particularly challenging at network aggregation points. The devices at these points must be able to deliver multiple Layer 2 and Layer 3 services, while providing efficient transfer of network traffic from customer access nodes to the core network and back. These aggregation devices must simultaneously provide scalable bandwidth and interface density between the access and core networks; support numerous network protocols, as well as quality-of-service (QoS), security, and accounting features; and be compatible with the existing SONET infrastructure.
Cisco
® 7600 Series routers provide the performance, density, and features needed for network aggregation devices in consolidated network architectures. To provide aggregation services over an existing SONET infrastructure, Cisco 7600 Series routers can be configured to support various SONET interface cards, such as the Cisco 2- and 4-port OC-12c/STM-4 Packet over SONET (POS) enhanced optical services module (OSM). These enhanced OSMs deliver advanced IP and Multiprotocol Label Switching (MPLS) services based on the Cisco Parallel Express Forwarding (PXF) network processor. The 2-port OC-12c POS OSM includes one PXF per interface card, whereas the 4-port OC-12c POS OSM includes two PXF processors per interface card.
Enhanced OC-12/STM-4 OSM Feature Summary
The Cisco 2- and 4-port OC-12c/STM-4 POS enhanced OSMs support the capabilities listed in Table 1.
Table 1. Features and Benefits of the OC-12c/STM-4 POS Enhanced OSM
Investment Protection
The Cisco 7600 Series enables Cisco customers to take advantage of their existing investments in Cisco equipment. In addition to the enhanced OSMs, the Cisco 7600 Series can be configured with any combination of traditional Cisco Catalyst
® 6000 Series LAN interfaces, and can also be configured with Cisco 7500 and 7200 Series WAN port adapters. As a result, the Cisco 7600 Series offers outstanding scalability, with WAN interfaces from DS-0 through OC-48/STM-16 and LAN interfaces from 10/100-Mbps Ethernet to Gigabit Ethernet and 10 Gigabit Ethernet.
Designed for Service Provider Environments
The Cisco 7600 Series is specifically designed to meet the high-availability requirements of service provider networks. Each Cisco 7600 Series router provides a Network Equipment Building Standards 3 (NEBS-3)-compliant chassis. Furthermore, the Cisco 7600 Series supports fully redundant route processing and forwarding configurations, with the ability to route using such core protocols as Border Gateway Protocol Version 4 (BGP4), Intermediate System-to-Intermediate System (IS-IS), and Open Shortest Path First (OSPF), as well as support for QoS and packet filtering. The Cisco 7600 Series supports a 720-Gbps switch fabric, providing high aggregate throughput, as well as high port density, enabling service providers to optimize space utilization in the central office. Table 2 shows the OC-12 port densities that can be supported with the Cisco 7600 Series.
Table 2. 2- and 4-Port OC-12c/STM-4 POS Enhanced OSM Chassis and Rack Density*
* Based on the following configuration:
· One Cisco Supervisor Engine 720 per Cisco 7609 chassis
· Seven 2- or 4-port OC-12 POS modules per Cisco 7609 chassis
· Two Cisco 7609 chassis per 7-foot rack
Ordering Information
Table 3 lists parts and ordering information for the 2- and 4-port OSMs.
Table 3. Enhanced OSMs for 2- and 4-Port OC-12c/STM-4 POS Versions
Technical Specifications
OC-12c/STM-4 POS Specifications
SONET/SDH Compliance:
Telecordia (Bellcore) GR-253-CORE (as applicable)
ITU-T G.707, G.957, G.825 (as applicable)
Support for 1+1 SONET Automatic Protection Switching (APS) as per GR253-CORE-per port, per line card, per chassis (as applicable)
Support for 1+1 SDH Multiplex Section Protection (MSP) as per G.783 Annex A-per port, per line card, per chassis (as applicable)
Encapsulations:
IETF RFC 1661, Point-to-Point Protocol (PPP)
IETF RFC 1973, PPP in Frame Relay
IETF RFC 1662, PPP in High-Level Data Link Control (HDLC)-like framing
IETF RFC 2615, PPP over SONET/SDH with 1+x43 Self-Synchronous Payload Scrambling
SONET/SDH Errors, Alarms, and Performance Monitoring:
Signal Failure Bit Error Rate (SF-ber)
Signal Degrade Bit Error Rate (SD-ber)
Signal Label Payload Construction (C2)
Path Trace Byte (J1)
Section:
Loss of Signal (LOS)
Loss of Frame (LOF)
Error Counts for B1
Threshold Crossing Alarms (TCA) for B1
Line:
Line Alarm Indication Signal (LAIS)
Line Remote Defect Indication (LRDI)
Line Remote Error Indication (LREI)
Error Counts for B2
Threshold Crossing Alarms (TCA) for B2
Path:
Path Alarm Indication Signal (PAIS)
Path Remote Defect Indication (PRDI)
Path Remote Error Indication (PREI)
Error Counts for B3
Threshold Crossing Alarms (TCA) for B3
Loss of Pointer (LOP)
New Pointer Events (NEWPTR)
Positive Stuffing Event (PSE)
Negative Stuffing Event (NSE)
Path Unequipped Indication Signal (PUNEQ)
Path Payload Mismatch (PPLM) Indication Signal
SONET/SDH Synchronization:
Local (internal) timing (for inter-router connections over dark fiber or WDM equipment)
Loop (line) timing (for connection to SONET/SDH equipment)
-20 ppm clock accuracy over full operating temperature
Network Management:
Local loopback
Network loopback
NetFlow data export
RFC 1595, Performance Statistics for Timed Intervals (current, 15-minute, multiple-15-minute, and 1-day intervals)
Regenerator section
Multiplex section
Path errored seconds
Severely errored seconds
Severely errored framed seconds
Connector:
SC connector
Table 4. POS Optical Specifications
Gigabit Ethernet Specifications
IEEE 802.3z-compliant
GBIC-based Gigabit Ethernet interfaces with SC connectors:
Gigabit Ethernet Optical Specifications
GBIC Distance
1000BASE-LX: 50
µm multimode fiber up to 550 m
1000BASE-LX: 9/10
µm single-mode fiber up to 5 km
1000BASE-LH: 62.5
µm multimode fiber up to 550 m
1000BASE-LH: 50
µm multimode fiber up to 550 m
1000BASE-LH: 9/10
µm single-mode fiber up to 10 km
1000BASE-ZX: 9/10 µm single-mode fiber up to 70 km
1000BASE-ZX: dispersion-shifted fiber up to 100 km
Support for IEEE 802.1Q VLAN trunking with up to 4000 simultaneous VLANs
Support for Hot Standby Router Protocol (HSRP)
Support for Jumbo frames with a maximum transmission unit (MTU) of 9192 bytes
Cisco 7600 System Features
Hardware-based Cisco Express Forwarding at 30 Mpps
ACL application at 30 Mpps
QoS classification at 30 Mpps
Policy routing at 30 Mpps
Support for 128,000 traffic accounting entries per system
Support for online insertion and removal (OIR)
Support for 200 ms of packet buffering per WAN port
Support for SNMP versions 1 and 2 and four Remote Monitoring (RMON) groups per port: statistics, history, alarms, and events
Physical Specifications of 2- or 4- port OC-12c/STM-4 POS OSM
Occupies one slot in any Cisco 7600 Series chassis
Occupies one slot in any Cisco Catalyst 6500 Series chassis
WS-C6506-Cisco Catalyst 6506 chassis
WS-C6509-Cisco Catalyst 6509 chassis
WS-C6509-NEB-Cisco Catalyst 6509 chassis for NEBS environments
Two or four OC-12c/STM-4 ports supported per OSM
Four Gigabit Ethernet optical ports per OSM
Up to seven 2- or 4-port OC-12c/STM-4 optical modules supported in a 9-slot chassis
Required with either Cisco 7600 Series or Cisco Catalyst 6500 Series chassis:
Supervisor Engine 720: WS-SUP720-3BXL
Supervisor Engine 2: WS-X6K-S2-MFSC2
Recommended with either Cisco 7600 Series or Cisco Catalyst 6500 Series chassis:
Switch fabric module (only needed with Supervisor Engine 2)
256 Gbps crossbar fabric: WS-C6500-SFM
Dimensions (H x W x D): 1.2 x 14.4 x 16 in. (3.0 x 35.6 x 40.6 cm)
Weight: 11.0 lb (5 kg)
Power requirement: 141W (2-port); 201W (4-port)
Mean time between failure (MTBF): seven years for system configuration
Indicators and Interfaces
Status: green (operational)/red (faulty)/orange (module booting or running diagnostics)
Link good: green (port active)/orange (disabled)/off (not active/connected)/blinking orange (failed diagnostic and disabled)
Processors and Memory
One 262-MHz R7000 MIPS RISC processor
Configurable packet/route table memory options:
128 MB ECC SDRAM (default)
128 MB ECC SDRAM
256 MB ECC SDRAM
512 MB ECC SDRAM
Cisco PXF IP Services Processor(s):
Provides up to 5.5 Mpps of distributed IP service application per PXF IP Services Processor
Nonconfigurable PXF memory per line card:
256 MB SDRAM of route table memory per PXF IP Services Processor
128 MB SDRAM of packet buffer memory per PXF IP Services Processor (CRC Checks per Packet)
8 MB SSRAM of packet processing memory per PXF IP Services Processor
MIB Support
SONET MIB (RFC 1595)
RFC 1157 SNMP
RFC 1901 - 1907 SNMP v2c
SNMP v3 MIB
IF-MIB (RFC 1573)
CISCO-STACK-MIB
CISCO-CDP-MIB
RMON MIB (RFC 1757)
ENTITY-MIB (RFC 2037)
HC-RMON
RFC1213-MIB (MIB-II)
SMON-MIB
IP Statistics MIB
HSRP MIB
CAR MIB
WRED MIB
RSVP MIB
Cisco RTTMON MIB
Environmental Conditions
Operating temperature: 32 to 104°F (0 to 40°C)
Storage temperature: -4 to 149°F (-20 to 65°C)
Relative humidity: 5 to 90 percent, noncondensing
Operating altitude: -500 to 10,000 ft
Regulatory and Safety Compliance
UL 1950
CAN/CSA C22.2 No.950-95
EN 60825-1 Laser Safety (Class 1)
21CFR1040 Laser Safety
IEC60825-2
EN60950
IEC 60950
TS 001
AS/NZS 3260
EMC Compliance
FCC Part 15 (CFR 47) Class A
VCCI Class A
EN55022 Class A
CISPR 22 Class A
AS/NZS 3548 Class A
EN55024
CE Marking
NEBS Level 3 Compliance
The Cisco 7600 chassis has been certified as NEBS Level 3 compliant, according to the following specifications:
GR-63-CORE - NEBS: Physical Protection
GR-1089-CORE - NEBS: EMC and Safety
ETSI Compliance
ETS-300386-2 Switching Equipment
Minimum Software Version
Cisco IOS
® Software Release 12.1(12)E (when used with Supervisor Engine 2)
Cisco IOS Software Release 12.2(17a)SXA (when used with Supervisor Engine 720)
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