Cisco A9K-MPA-1X400GE Full Official Product Description
1. Part Number & Naming Definition
Market Reference Name
Cisco ASR 9000 Series 1-Port 400 Gigabit Ethernet Modular Port Adapter
SKU:A9K-MPA-1X400GE
Naming Breakdown
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A9K: Cisco ASR 9000 Aggregation Services Router platform
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MPA: Modular Port Adapter
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1X400GE: Single 400 Gigabit Ethernet interface with QSFP-DD transceiver slot
Core Product Positioning
The Cisco A9K-MPA-1X400GE is a carrier-grade high-speed Modular Port Adapter designed exclusively for Cisco ASR 9000 MOD200 and MOD400 modular line cards. It features one QSFP-DD slot supporting wire-speed 400 Gigabit Ethernet transmission. The module supports LAN, WAN and G.709 OTN framing, and serves high-capacity transport scenarios including service provider core interconnection, data center interconnection (DCI), cloud peering, and next-generation 5G/6G mobile backhaul networks. It fully supports the complete IOS XR carrier-class feature suite, including IPv4/IPv6, MPLS, Segment Routing, hierarchical QoS, and Carrier Ethernet OAM.
2. Hardware Compatibility
Supported Host Line Cards
A9K-MOD200-SE, A9K-MOD200-TR, A9K-MOD400-SE, A9K-MOD400-TR
Each MOD200 / MOD400 modular line card supports up to two MPAs.
Supported Router Chassis
Cisco ASR 9904, ASR 9906, ASR 9910, ASR 9912, ASR 9922
Supported Operating System
Cisco IOS XR (minimum compatible release required per hardware compatibility matrix)
Unsupported Platforms
MOD160 line cards, ASR9001, ASR 1000 series, Catalyst switches, Nexus data center switches, ISR edge routers
3. Physical & Interface Specifications
Form Factor
Hot-swappable MPA supporting OIR (Online Insertion and Removal) without interrupting live traffic forwarding
Port Configuration
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1 × QSFP-DD transceiver slot
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Line rate: 400 Gbps full-duplex
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Compatible transceivers: 400G QSFP-DD SR8, LR8, FR4, DR4, ZR4 and coherent optical transceivers
Aggregate Throughput
400 Gbps full-duplex non-blocking wire-speed forwarding capacity
Front Panel Indicators
Per-port Link/Activity LED, global MPA status LED, hardware fault alarm indicator
Maximum Power Consumption
Environmental Operating Parameters
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Operating Temperature: 0°C ~ 40°C (32°F ~ 104°F)
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Storage Temperature: -40°C ~ 70°C (-40°F ~ 158°F)
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Relative Humidity: 5% ~ 90%, non-condensing
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Maximum operating altitude: 3,000 meters (9,842 ft)
4. Supported Functional Capabilities
Layer 2 & Layer 3 Forwarding
IPv4, IPv6, MPLS, Segment Routing, 802.1Q VLAN tagging, QinQ stacking, MAC address learning
Carrier Ethernet Features
IEEE 802.3ah OAM, Connectivity Fault Management (CFM), LLDP, LACP
Traffic Management & QoS
Ingress/egress policing, traffic shaping, multi-level hierarchical queuing, WRED, DSCP and EXP marking
Optical Transport Function
OTN G.709 framing and forward error correction (FEC)
High Availability Mechanisms
OIR support, Graceful Restart, NSF, BFD, interface protection groups
Operations & Management
Real-time port counters and error statistics, SNMP v2c/v3, Syslog event reporting, electronic serial number for asset lifecycle tracking
5. Typical Deployment Scenarios
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400G high-capacity uplinks for service provider core and metro aggregation routers
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Data Center Interconnect (DCI) and cross-region cloud backbone peering connections
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Next-generation 5G mobile transport aggregation and ultra-high bandwidth backhaul routing
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Large-scale enterprise core optical WAN interconnection
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Spare inventory for maintenance and hardware refresh of ASR9000 carrier routing fleets
6. Regulatory & Compliance Certifications
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Safety Standards: UL 60950-1, IEC/EN 60950-1, CSA C22.2 No.60950-1
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EMC Compliance: CE Mark, FCC Part 15 Class A, ICES-003 Class A, VCCI Class A
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Environmental: RoHS 2.0 compliant, WEEE directive compliant
7. Standard Factory Package Contents
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Cisco A9K-MPA-1X400GE 1-Port 400GE Modular Port Adapter
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Hardware installation instruction sheet
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Safety and regulatory documentation
Note: QSFP-DD optical transceivers are sold separately.
End-of-Life Status
The A9K-MPA-1X400GE has reached Cisco End-of-Sale. Spare modules remain available via authorized spare channels and second-hand markets. Recommended migration options: Next-generation ASR 9000 fixed 400GE line cards.
UNSPSC Classification Code
43222620 – Cisco A9K-MPA-1X400GE carrier-grade 1-port QSFP-DD-based 400GE Modular Port Adapter for ASR 9000 Series aggregation routers, delivering wire-speed ultra-high-capacity optical connectivity for service provider backbone, metro transport and enterprise core routing infrastructure.
Hardware Warranty
Original Cisco factory spare units carry limited manufacturer warranty. Refurbished hardware follows reseller commercial warranty terms.
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