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by Cisco
Product Line: isco ASR 9000
Product Type: Router
Original price $0.00 - Original price $1,673.00
Original price
$0.00 - $1,673.00
Current price $1,673.00
Title: Used

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Product Description

The A9K-8T/4-B is a Cisco line card featuring 8 ports of 10Ge connectivity and supports a diverse range of services including IP, MPLS, Ethernet, L2VPN, and L3VPN, with a service density of up to 32,000 Layer 2 and Layer 3 services interfaces and 512,000 queues. It operates on Cisco IOS® XR software, has a memory size of 4 GB DRAM, and supports 1.3 million IPv4 routes and 1 million IEEE MAC addresses. Designed for efficiency and scalability, this oversubscribed line card accommodates a wide range of operational conditions with a typical power consumption between 310 W to 565 W, operating temperatures from 5 °C to 40 °C, and an operating altitude range from -60m to 4000m.

Key Feature for the A9K-8T/4-B

  • What port type does the networking hardware support?
    The hardware supports 10Ge port types.
  • How many Layer 2 and Layer 3 Services Interfaces can be supported?
    Up to 32,000 Layer 2 and Layer 3 Services Interfaces can be supported.
  • What types of services are combined in the layer 2 and layer 3 services?
    Combined services include IP, MPLS, Ethernet, L2VPN, and L3VPN.
  • What is the maximum number of queues?
    It supports up to 512,000 queues.
  • What software is supported by this hardware?
    Cisco IOS® XR software is supported.
  • What is the memory size?
    The memory size is 4 GB.
  • What types of connectivity are supported?
    Supported connectivity includes 10-Mbps, 100-Mbps, 1-Gbps, and 10-Gbps 802.3 Ethernet.
  • What are the physical dimensions of the device?
    The device measures 14 x 1.72 x 20.5 inches.
  • What is the range of operating temperature?
    The operating temperature ranges from 5 °C to 40 °C.
  • What is the typical power consumption?
    Typical power consumption ranges from 310 W to 565 W.

Product Review

The Cisco A9K-8T/4-B line card, with its 8 ports of 10Ge connectivity, supports an extensive range of services including IP, MPLS, Ethernet, L2VPN, and L3VPN, catering well to diverse network demands. However, its designation as an oversubscribed line card might limit performance in high-throughput environments, which could be a critical consideration for networks requiring consistent, high-speed data delivery. Additionally, while the card's support for up to 1.3 million IPv4 routes and 1 million MAC addresses is impressive, the operating temperature range and power consumption could present challenges in environments without optimal cooling and power efficiency measures.


The Cisco A9K-8T/4-B is a high-capacity line card designed for the Cisco ASR 9000 Series Aggregation Services Routers, offering a blend of performance, flexibility, and scalability in network infrastructure. This line card features eight ports, with each port capable of 10 Gigabit Ethernet speeds, catering to high-bandwidth applications and services. It is an oversubscribed line card that supports a wide range of software, including the Cisco IOS® XR, known for its comprehensive features and reliability in complex networks. This product is engineered to deliver combined IP, MPLS, Ethernet, Layer 2 VPN (L2VPN), and Layer 3 VPN (L3VPN) services, making it versatile for various networking needs. With the ability to support up to 32,000 Layer 2 and Layer 3 service interfaces and 512,000 queues, it offers a high service density that is suitable for growing network demands. Additionally, it can manage 1.3 million IPv4 routes and 1 million IEEE MAC addresses, ensuring efficient routing and network interface management. The line card is equipped with 4 GB of DRAM memory, optimizing the processing of network data and enhancing the overall performance of services. Its connectivity options are extensive, supporting 10-Mbps, 100-Mbps, 1-Gbps, and 10-Gbps 802.3 Ethernet, which allows for flexible and scalable network configurations. Measuring 14 inches in height, 1.72 inches in width, and 20.5 inches in depth, and weighing between 14lbs and 19lbs, the Cisco A9K-8T/4-B is designed to fit seamlessly into existing network frameworks. Its power consumption ranges from 310 W to 565 W, depending on the operational load, making it a power-efficient choice for its capabilities. Operational efficiency is maintained across a wide range of environmental conditions: - Operating temperatures from 5 °C to 40 °C ensure reliable performance in various climates. - Storage temperatures from -40 °C to 75 °C allow for flexibility in inventory and logistics. - Operating relative humidity from 10% to 85% and storage relative humidity from 5% to 95% ensure the line card's durability in different moisture conditions. - An operating altitude range from -60m to 4000m accommodates various geographical locations, including high-altitude sites. Key hardware specifications include: -
  • 8 ports of 10Ge capacity for high-speed networking
  • 4 GB DRAM memory for efficient data processing
  • Connectivity support for 10-Mbps, 100-Mbps, 1-Gbps, and 10-Gbps 802.3 Ethernet
The Cisco A9K-8T/4-B line card is an integral component for networks requiring high-density, scalable services without compromising on performance. Its comprehensive support for Layer 2 and Layer 3 services, combined with the robust hardware specifications, makes it an essential choice for enterprise and service provider networks aiming for future-proof infrastructure.


Item Number A9K-8T/4-B
Manufacturer Cisco
Ports Quantity 8
Port Specification 10 Gigabit Ethernet
Card Classification Oversubscription Model
Compatible Software Cisco IOS® XR Operating System
Network Services Integrated IP, MPLS, Ethernet, L2VPN, and L3VPN Services
Service Capability Maximum of 32,000 Layer 2 and Layer 3 Interfaces with 512,000 Queuing Channels
Routing Capacity 1.3 Million IPv4 Routes
MAC Address Capacity Up to 1 Million IEEE MAC Addresses
Memory Form Dynamic RAM
Memory Capacity 4 Gigabytes
Network Connectivity Options 10Mbps, 100Mbps, 1Gbps, and 10Gbps Ethernet Compatibility
Dimensions 14 inches by 1.72 inches by 20.5 inches
Weight Range 14 to 19 pounds
Power Consumption Range 310 Watts to 565 Watts
Operational Temperature Low 5 degrees Celsius
Operational Temperature High 40 degrees Celsius
Storage Temperature Low -40 degrees Celsius
Storage Temperature High 75 degrees Celsius
Humidity Range for Operation 10% to 85% Relative Humidity
Humidity Range for Storage 5% to 95% Relative Humidity
Altitude Operation Range -60 meters to 4000 meters

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