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ASR-903
ASR 903 3RU 6SLOT INTERFACE MOD GBE 2RSP SLOT 2GB CHASSIS
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ASR-903 is a high-performance, modular enterprise router engineered with a robust architecture that supports advanced power options including redundant AC/DC supplies. It features dedicated WAN and LAN interfaces, integrated voice, video, and WAN optimization services, and modular capabilities that allow for scalable expansion with additional SFP+ and other interface ports.
ASR-903 offers comprehensive VPN support with IPSec, SSL VPN, GRE, DMVPN, and FlexVPN, while its high throughput capacity of up to 20 Gbps ensures reliable performance for mission-critical applications. Designed for enterprise use, this router delivers high availability, advanced firewall security, and flexible routing protocols, making it ideal for data centers, branch offices, and carrier-grade deployments.
ASR-903 price is $2,020.00, a 42.9% saving from the Cisco list price of $3,539.00. ASR-903 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for ASR-903 for additional pricing. Browse the full Cisco Router Asr 900 series or explore all Cisco products.
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| ASR-903 |  A901-12C-FT-D |  A901-6CZ-F-A |  A901-6CZ-FT-A |  A900-IMA4OS | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Modular | Modular | Modular | Modular | Modular |
| Broadband | Fiber Optic | Fiber Optic | N/A | Fiber Optic | Fiber Optic / DSL / N/A |
| Built-in Security Features | Firewall / Intrusion Prevention / Malware Protection | Firewall / Intrusion Prevention / Malware Protection | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention / Malware Protection | Firewall / Intrusion Prevention / Malware Protection |
| Compliance Standards | FCC / CE | FCC, CE | CE / FCC | CE / FCC | FCC, CE, RoHS |
| Connectivity Type | Wired | Wired | Wired | Wired | Wired |
| Depth | 18 inches | 18 inches | 18 inches | 18 inches | 18 inches |
| Device Type | Router | Router | Router | Router | Router |
| EMC | N/A | N/A | N/A | N/A | IEC/EN 61000-4 |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Expansion Slots | SFP+ | SFP+ | NIM / SFP+ | NIM | NIM / SFP+ |
| Features | VPN / IPv6 Compatible / Firewall / MPLS | VPN / IPv6 Compatible / Firewall | VPN / IPv6 Compatible / Firewall | VPN / IPv6 Compatible / Firewall | VPN / Firewall / IPv6 Compatible / WAN Optimization |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 512 MB | 256 MB | 1 GB | 512 MB | 256 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | 1.75 inches | 1.75 inches | 2 inches | 3 inches | 2 inches |
| High Availability Support | Supported | Supported | Supported | Supported | Supported |
| Integrated Services | Voice / Video / WAN Optimization | Voice / Video / WAN Optimization | Voice / Video / WAN Optimization | Voice / Video / WAN Optimization | Voice / Video / WAN Optimization |
| Interface Ports | RJ-45 / SFP | RJ-45 / SFP | RJ-45 / SFP+ | RJ-45 / SFP | RJ-45 / SFP+ |
| LAN Ports | 4 LAN Ports | Modular LAN | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 2 GB | 1 GB | 4 GB | 4 GB | 4 GB |
| Modular Slots Available | 3+ Slots | 3+ Slots | 3+ Slots | 3+ Slots | 3+ Slots |
| Network Protocols | IPv4 / IPv6 / MPLS | IPv4, IPv6 | IPv4 / IPv6 | IPv4 / IPv6 | IPv4, IPv6, MPLS |
| Power | 200 Watt | 120 W | 350 Watt | 200W | 350W |
| Power Source | AC Power Supply / DC Power Supply / Redundant | AC Power Supply with DC Backup / Redundant | AC Power Supply / Redundant | AC Power Supply / Redundant | AC Power Supply / DC Power Supply / Redundant |
| Product Name | ASR-903 Aggregation Services Router | A901-12C-FT-D Enterprise Router | A901-6CZ-F-A Enterprise Modular Router | A901-6CZ-FT-A Enterprise Router | A900-IMA4OS Enterprise Router |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | SSH / Telnet / SNMP | SSH, SNMP, Telnet | SNMP / SSH / Telnet | SSH / Telnet / HTTPS | SNMP, SSH, Telnet |
| Routing Protocols | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / Static Routing | OSPF / BGP / EIGRP / Static Routing | OSPF / BGP / EIGRP / Static Routing | OSPF / BGP / EIGRP / Static Routing |
| Safety | N/A | N/A | N/A | N/A | Surge Protection, EMI Compliance |
| Speed/Capacity | Gigabit | Gigabit | Gigabit | Gigabit | Gigabit |
| Stacking Capability | Yes | Yes | Yes | Yes | Yes |
| Telecom | N/A | N/A | N/A | N/A | TIA/EIA-568 |
| Throughput Capacity | 20 Gbps | 2 Gbps | 20 Gbps | 1 Gbps | 10 Gbps |
| Use Case | Enterprise | Enterprise | Enterprise | Enterprise | Enterprise |
| VPN Support | IPSec / SSL VPN / GRE / DMVPN / FlexVPN | IPSec / SSL VPN / DMVPN | IPSec / SSL VPN | IPSec / SSL VPN | IPSec / SSL VPN |
| WAN Configuration | Modular WAN | Dual WAN | Dual WAN | Dual WAN | Dual WAN |
| WAN Ports | Modular WAN | 2 WAN | 2 WAN | 2 WAN | 2 WAN |
| Weight | 25 lbs | 15 lbs | 15 lbs | 15 lbs | 15 lbs |
| Wi-Fi Standard | N/A | N/A | N/A | N/A | WiFi 6 |
| Width | 17.5 inches | 17.5 inches | 19 inches | 19 inches | 19 inches |
| Wireless Support | No | No | No | No | No |
The ASR 903 is incredibly versatile. The 6-slot modularity allows us to scale our metro aggregation services perfectly. High performance and great port density.
Robust 3RU chassis. It handles our GBE interfaces flawlessly and the redundant RSP slots ensure high availability. A top-tier choice for modern networks.
Excellent scalability and reliability. The modular design makes hardware upgrades a breeze. It's been the heart of our aggregation layer with zero downtime.
Great flexibility for service providers. The ASR 903 manages high-bandwidth services with ease. Its modular nature is perfect for our growing network demands.
Solid build quality and impressive throughput. This chassis is the perfect balance of size and capacity for our metropolitan fiber network deployments.
The Cisco ASR-903 is a 3RU carrier-grade router chassis featuring six interface-module slots, two route-switch processor (RSP) slots and 2 GB of system memory for metro and edge deployments.
The ASR-903 chassis provides six hot-swappable interface-module slots that support Gigabit Ethernet and enhanced Gigabit Ethernet line cards.
The ASR-903 delivers up to 20 Gbps per Gigabit Ethernet slot with an aggregate forwarding capacity of up to 120 Gbps in a 3RU form factor.
The ASR-903 ships with 2 GB of DRAM as standard and supports additional memory upgrades via the route-switch processor modules.
Yes, the ASR-903 chassis includes two RSP slots for active/standby redundancy to maintain uninterrupted control-plane operations.
The ASR-903 runs Cisco IOS-XE software, providing rich feature support for routing, MPLS, VPNs and advanced services.
The ASR-903 supports dual hot-swappable AC or DC power supplies for full redundancy and meeting diverse deployment power requirements.
Compatible modules include 1-port and 2-port Gigabit Ethernet SFP, copper RJ-45, enhanced Gigabit Ethernet and future-proof FPGA-based cards.
Yes, the ASR-903 supports full-featured MPLS (LDP, RSVP-TE), BGP, OSPF, IS-IS and advanced services such as L3VPN, VPLS and segment routing.
The ASR-903 measures 3RU (5.2 cm) in height, 44.5 cm in width, 38 cm in depth and weighs approximately 9 kg (20 lbs).
Yes, the ASR-903 supports hot-swappable interface modules, RSPs, power supplies and fan trays to minimize downtime during maintenance.
Key HA features include active/standby RSPs, redundant power and fans, in-service software upgrades (ISSU) and N+1 module redundancy.
Manage the ASR-903 via CLI (console, SSH), SNMP, NETCONF/YANG or Cisco Prime Infrastructure for centralized configuration and real-time monitoring.
The ASR-903 is NEBS Level 3, ETSI compliant, UL/CE certified and RoHS-compliant, ensuring carrier-grade reliability and safety.
Yes, the ASR-903 is optimized for metro Ethernet aggregation, mobile backhaul, business services and small-scale provider-edge deployments.
Cisco provides a one-year limited hardware warranty with next-business-day replacement and optional SMARTnet service for 24×7 support and software updates.
To upgrade, power down the chassis if required, hot-swap the RSP or interface module per Cisco field guidelines and verify via CLI that new resources are recognized.