Description:

The Cisco A901-12C-F-D ASR 901 Aggregation Services Router is used in service provider and enterprise edge networks to deliver high-performance Ethernet aggregation and routing. Commonly installed in mobile backhaul, metro Ethernet, and access network deployments to connect cell sites, enterprise locations, and aggregation points. Maintenance teams and system integrators use this router for network expansion, infrastructure upgrades, and replacement of legacy aggregation routers.

Applications:

The Cisco ASR 901 router is commonly used in telecom and enterprise environments, particularly for mobile network backhaul, small cell deployments, and metro Ethernet aggregation. It is designed for environments requiring compact, hardened routing platforms with high throughput and reliability.

Technical Specifications:

• Manufacturer Part Number (MPN): A901-12C-F-D
• Product Type: Aggregation Services Router
• Series: Cisco ASR 901
• Interfaces: 12 × Gigabit Ethernet combo ports (RJ-45/SFP)
• Uplinks: Optional 10GbE support (model dependent)
• Memory: 1 GB DDR3 system memory
• Flash Memory: 128 MB onboard flash
• Form Factor: 1U rack-mountable
• Power: DC power input
• Design: Fanless, hardened for harsh environments
• MAC Address Table: Up to ~32,000 entries
• Features: Advanced QoS, MPLS support, Carrier Ethernet capabilities
• Application Environment: Telecom, mobile backhaul, and enterprise edge networks

Common Replacements:

• Cisco ASR 920 Series (newer generation aggregation router)
• Cisco NCS 540 Series (higher performance edge routing)
• Cisco A901-12C-FT-D (adds TDM interfaces)