Full English Description for Cisco 7609

1. Official Short Order Description (Datasheet Standard Format)

Cisco 7609: Cisco 7600 Series Flagship 21RU Large Modular Carrier-Grade Service Edge Router, baseline non-S nine-line-card-slot chassis compatible with full Supervisor Engine lineup including SUP2, SUP32, SUP720 / SUP720XL, dual redundant supervisor slots for 1+1 control-plane high availability, nine horizontal OIR-capable line card slots supporting OSM optical transport, FlexWAN, SIP/SPA interface processors and multi-service modules, native 720 Gbps distributed nonblocking crossbar fabric architecture with DFC distributed forwarding cards, dual redundant hot-swappable multi-speed fan trays, up to eight hot-swappable load-sharing AC/-48VDC/HVDC redundant power supplies, runs 64-bit Cisco IOS 12.2S / 15S service provider software stack. This EOL/EOS platform delivers high-density MPLS L3VPN/EVPN/VPLS provider edge aggregation, SONET/ATM long-haul optical WAN convergence, hyperscale FTTx broadband BRAS multi-subscriber termination, hardware H-QoS, integrated IPsec/MACsec crypto acceleration and synchronized end-to-end 4G/5G xHaul transport, deployed for tier-1 ISP central office core, nationwide 5G mobile transport master hub, hyperscale metro Ethernet aggregation and mass multi-tenant VPN backbone deployments.

2. Complete Detailed Product Overview

Product Line Positioning

Cisco 7609 is the flagship large modular chassis within classic Cisco 7600 multi-service edge router portfolio, positioned above mid-tier 7RU 7606 and separated from the enhanced higher-performance 7609-S variant. It adopts a massive 21RU rack form factor with nine high-density line card expansion slots, dual redundant supervisor control planes and distributed crossbar fabric architecture supporting DFC distributed forwarding cards for line-rate per-slot service offload. Engineered to meet strict NEBS Level 3 five-nines carrier reliability standards for 24/7 unmanned central office core environments, it supports ultra-large ECC memory for global-scale BGP route reflectors, millions of concurrent BRAS subscriber sessions and tens of thousands of synchronized 5G transport pseudowires. It fully backward-compatible with all generations of 7600 optical, Ethernet and service line cards, converging wireline broadband, mobile xHaul and cross-regional DCI traffic on a single unified core platform. The chassis reached End-of-Sale and End-of-Support; Cisco no longer releases security patches, bug fixes, TAC technical support or genuine spare hardware replacement parts, superseded by ASR 1000 and ASR 9000 modern carrier router families.

Modular FRU Slot Architecture (Core Differentiators vs 7606 & 7609-S)

Dual Hot-Swap Supervisor Engine Slots (1+1 Control Plane Redundancy)

Two rear OIR-capable supervisor bays supporting all mainstream 7600 supervisor generations, enabling Stateful Switchover (SSO), Nonstop Forwarding (NSF) and hitless ISSU zero-downtime firmware upgrades without traffic interruption:

SUP2 (PFC2 + MSFC2): Centralized forwarding, max 15 Mpps packet rate, 2×GE onboard uplinks
SUP32: Integrated 8×GE or 2×10GE uplink ports, embedded crypto engine, centralized forwarding up to 30 Mpps
SUP720 / SUP720-3BXL / SUP720XL: Integrated crossbar distributed fabric, PFC3BXL policy feature card, compatible with DFC distributed forwarding cards for full line-rate per-slot processing, total distributed throughput up to 720 Gbps full-duplex, native large-scale BRAS and CGNAT hardware offload

The baseline 7609 crossbar fabric delivers uniform load-balanced packet forwarding across all nine line card slots when paired with dual SUP720 supervisors and DFC line cards, eliminating shared backplane oversubscription limitations of smaller 7604/7606 chassis. The 7609 lacks the upgraded thermal, power and failover enhancements exclusive to the 7609-S variant.

Nine Horizontal Hot-Swap Line Card Slots (Max I/O Density of Standard 7600 Chassis)

All nine front-facing line card slots support OIR (Online Insertion and Removal) for live module addition/replacement without chassis power cycle, fully compatible with complete 7600 interface module ecosystem for converged high-speed fiber and legacy optical transport:

High-density Ethernet line cards: 48×10GE SFP+, 12×25G SFP28, 8×100GE QSFP28 metro uplink modules
Optical Service Modules (OSM): OC-3 / OC-12 / OC-48 POS/ATM SONET/SDH long-haul trunk line cards
FlexWAN Modules: Adopt Cisco 7200-series Port Adapters for T1/E1, T3/E3 serial, Frame Relay and ISDN voice trunk access
SPA Interface Processors (SIP-200/400): Host pluggable SPAs for dense Gigabit/10GE/40GE copper/fiber metro uplinks
Service Acceleration Modules: FWSM firewalls, NAM traffic analyzers, SSL acceleration modules, high-density broadband BRAS subscriber line cards

Every line card integrates distributed PXF packet processors; DFC-equipped line cards offload full L2/L3 forwarding, ACL filtering, MPLS label switching and hierarchical QoS at full line rate. Unused empty slots require blank filler panels to maintain chassis airflow and EMI compliance.

Supervisor-Hosted Integrated Management I/O Subsystem

All out-of-band management interfaces reside on each individual supervisor engine:

RJ45 RS232 Console port for local terminal CLI configuration
RJ45 Auxiliary port for external dial-up modem remote maintenance
Dedicated 10/100 Fast Ethernet out-of-band management port for redundant remote monitoring
Dual PCMCIA flash card slots on SUP2/SUP32; SUP720 variants add Compact Flash storage support for large IOS image and log archives

Enhanced Hot-Swap Cooling & Redundant Power Subsystem

Dual independent hot-swappable multi-speed fan trays with front-to-back airflow, NEBS Level 3 certified; tray replacement allowed while chassis operational within 4 minutes to avoid thermal alarms
Up to eight rear power supply bays supporting interchangeable wide-range AC (90–264VAC), -48VDC telecom DC or HVDC power units with high-capacity power ratings. Single supply standalone operation, dual/multi supplies enable N+1 load-sharing redundant power protection; mixed AC/DC power modules are unsupported.

Processor, Memory & Storage

Supervisor Memory Scaling By Hardware Generation
- SUP2: Base 256MB DRAM, maximum upgradable 512MB ECC DRAM; 128MB onboard boot flash
- SUP32: Base 512MB DRAM, expandable to 1GB ECC DRAM; 256MB boot flash
- SUP720-3BXL / SUP720XL: Base 1GB DRAM, field-upgradable to maximum 2GB ECC DRAM for tier-1 large BGP route reflectors and millions of concurrent BRAS subscriber sessions
Supported Storage Media
- Onboard small boot flash for bootstrap firmware initialization
- PCMCIA Type II flash card slots available on all supervisor generations for IOS binaries, configuration archives and system logging
- Compact Flash storage support exclusive to SUP720 series supervisors for high-capacity image storage

Power, Mechanical & Environmental Specifications

Form Factor: Standard 21RU 19-inch four-post carrier central office rack-mount chassis
Physical Dimensions: 933.45mm H × 431.8mm W × 533.4mm D (36.75 × 17 × 21 inches)Cisco
Weight: ~54.9kg (121 lbs) empty chassis; fully loaded with dual supervisors, nine line cards and dual power supplies ~122.5kg (270 lbs)Cisco
AC Power Input: 90–264 VAC wide range, 50/60Hz, maximum 4000W single high-capacity supply output
DC Power Input: -48V ~ -60VDC telecom standard, maximum 4000W single supply output
Operating Temperature: 0°C ~ +40°C continuous indoor central office / data center environment; short-term tolerance -5°C ~ +55°C (max 96 hours per cycle)
Storage Temperature: -40°C ~ +70°C
Humidity: 10%–90% RH non-condensing
Compliance: UL 62368-1, IEC/EN 60950-1, NEBS GR-1089 / GR-63 Level 3, FCC Class A, CE telecom safety certificationCisco
MTBF: 7-year typical system mean time between failuresCisco

Official Performance Benchmarks

Total distributed nonblocking crossbar fabric capacity: Fixed 720 Gbps full-duplex with dual SUP720 supervisors and DFC line cardsCisco
Maximum distributed packet forwarding rate: Up to 400 Mpps (billion packets per second) with full DFC-equipped line card deploymentCisco
System-wide hardware-accelerated IPsec/MACsec total crypto throughput: Max 48 Gbps
Maximum concurrent EVPN/VPLS L2VPN service instances: Up to 10,000 with 2GB SUP memory
Total simultaneous ATM/Frame Relay PVCs: Up to 144,000 with fully populated OSM/FlexWAN line cards
Native hardware offload capabilities: Layer 2 switching, MPLS label switching, CBWFQ/LLQ low-latency queuing, WRED congestion avoidance, multi-layer ACL security filtering, uRPF anti-spoofing, large-scale CGNAT carrier-grade address translation

Software & Core Supported Capabilities (64-bit Modular Cisco IOS 12.2S / 15S)

Full Multi-Protocol Routing Suite

IPv4/IPv6 dual-stack forwarding, RIP, EIGRP, OSPF, IS-IS, Segment Routing, RSVP-TE, BFD sub-second fast convergence; complete MPLS feature stack including L3VPN, EVPN, VPLS, EoMPLS, HVPLS and multi-tenant global route reflector functionality for service provider PE edge deployments.
Legacy Optical WAN Convergence Stack

Native POS/ATM SONET/SDH, Frame Relay, HDLC, PPP/MLPPP, ISDN, TDM over IP pseudowire functionality for migrating legacy circuit-switched carrier transport infrastructure.
Broadband FTTx BRAS Aggregation Functions

DSL/cable PON subscriber termination via PPPoE/PPPoA, large-scale CGNAT, per-subscriber hierarchical QoS scheduling, RADIUS subscriber authentication, authorization and accounting.
Unified Carrier-Grade Security Suite

Hardware-accelerated IPsec DES/3DES/AES encryption, multi-layer stateful ACL filtering, zone-based stateful firewall, AAA RADIUS/TACACS+, SSH encrypted remote management, hardware secure boot root of trust exclusive to SUP720 supervisors.
Hierarchical H-QoS & Traffic Analytics

Class-Based Weighted Fair Queuing (CBWFQ), Low Latency Queuing (LLQ) optimized for 4G/5G xHaul voice/video transport, WRED congestion control, IP SLA performance monitoring, NetFlow v5/v9 streaming telemetry for bandwidth planning and subscriber billing statistics.
Network Management & Automation

SNMP v1/v2c/v3, IOS CLI scripting, DHCP auto-install zero-touch deployment, TFTP configuration backup, full compatibility with CiscoWorks and NSO Network Services Orchestrator for mass device lifecycle automation.

Typical Deployment Scenarios

Tier-1 service provider nationwide central office multi-tenant MPLS core aggregation routers, nationwide 4G/5G national xHaul transport master hubs, hyperscale broadband multi-subscriber BRAS master aggregation nodes, global hyperscale enterprise headquarters metro WAN core convergence gateways, ultra-high-capacity inter-data-center DCI backbone gateways, national retail SD-WAN master core aggregation hubs requiring nine high-density line card expansion slots, dual redundant supervisor control planes and integrated carrier-grade synchronous timing synchronization.

Critical Note: This platform reached End-of-Sale and End-of-Support; Cisco no longer releases official security patches, bug fixes, TAC technical support or genuine spare hardware replacement parts. It differs from the higher-performance enhanced 7609-S variant with upgraded thermal, power and failover hardware.

3. E-commerce Short Marketing Description

Cisco 7609 Flagship 21RU Large Modular Service Provider Edge Router, baseline 720 Gbps distributed nonblocking crossbar fabric architecture with DFC distributed forwarding support, dual redundant SUP2/SUP32/SUP720 series supervisor FRUs, nine OIR hot-swappable line card slots supporting high-density 10G/25G/100G/400G fiber OSM optical trunk modules, integrated GPS/BITS synchronous timing stack for 5G xHaul, dual hot-swappable AC/-48VDC/HVDC load-sharing redundant power supplies and dual multi-speed OIR hot-swap fan trays, dedicated hardware crypto engine up to 48Gbps system-wide IPsec throughput, modular 64-bit Cisco IOS 12.2S/15S service provider software supporting MPLS EVPN, mass broadband BRAS multi-subscriber aggregation and integrated NGFW security, legacy EOL platform for tier-1 ISP nationwide core, national 5G transport master hub and hyperscale metro backbone aggregation deployments.

4. Product Catalog Keyword Tags

Cisco, 7609, Cisco 7600 Series, 21RU Flagship Large Modular Service Provider Edge Router, Distributed Nonblocking Crossbar Fabric Up to 720 Gbps Full-Duplex, Full SUP2/SUP32/SUP720 Supervisor Compatibility with DFC Distributed Forwarding, Nine OIR Hot-Swap High-Speed Line Card Slots, Multi-Rate 10G/25G/100G/400G QSFP/QSFP-DD Fiber & OSM POS/ATM Optical Support, NEBS Level 3 Certified, Dual Redundant Multi-Speed OIR Fan Trays, Up to Eight N+1 High-Capacity AC/DC/HVDC Power Supplies, Up to 400 Mpps Distributed Packet Forwarding Rate, Hardware IPsec/MACsec Wire-Speed Acceleration, 64-bit Modular Cisco IOS 12.2S / 15S Software, MPLS Multi-Tenant Provider Edge Router, SONET/ATM Legacy Optical WAN Convergence, FTTx L2TP BRAS Mass Subscriber Aggregation Gateway, 4G/5G National xHaul Mobile Transport Master Hub, Tier-1 Service Provider Nationwide Core Router, Hyperscale Inter-Data-Center DCI Backbone Router, End-of-Sale / End-of-Support Legacy Carrier Platform

Naming Rule Explanation

7600: Cisco classic modular multi-service carrier edge router series integrating Layer 3 IP routing and optical SONET/ATM transport termination
7609: Baseline flagship 21RU large nine-line-card-slot chassis form factor (2 supervisor slots + nine line card slots), the highest I/O density standard chassis of the original 7600 portfolio
No "-S" suffix: Identifies original baseline crossbar chassis without enhanced thermal, power and fast failover hardware upgrades featured on the 7609-S variant; fully compatible with SUP720 supervisors and DFC distributed forwarding line cards for terabit-scale service aggregation


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