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C2811-SHDSL-V3/K9
2811 DSL bundle, WIC-1SHDSL-V3 (4-wire), SP Svcs, 128F/512D
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C2811-SHDSL-V3/K9 is a Cisco 2800 series integrated services router engineered with a modular architecture that combines dedicated SHDSL WAN connectivity with versatile LAN interfaces. Offering operation via an AC power supply, the device is built to deliver integrated voice, data, and secured VPN services in enterprise environments.
This router features a fixed form factor with modular expansion slots for interface cards, ensuring flexible WAN/LAN configurations and enhanced redundancy while supporting robust VPN features and firewall security. It is optimized for consistent throughput and scalable performance, making it well-suited for branch office connectivity and remote secure deployments.
C2811-SHDSL-V3/K9 price is $1,359.00, a 54.6% saving from the Cisco list price of $2,995.00. C2811-SHDSL-V3/K9 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for C2811-SHDSL-V3/K9 for additional pricing. Browse the full Router Isr 2800 series or explore all Cisco products.
A regional bank deploys the Cisco C2811-SHDSL-V3/K9 with WIC-1SHDSL-V3 (4-wire) and SP Svcs at 128F/512D to link 15 remote branches to its data center over bonded SHDSL circuits. The integrated 128 kbps upstream and 512 kbps downstream profile delivers symmetrical security tunnels, granular QoS and centralized firewalling. Outcome: Consistent encrypted access, 99.99% uptime SLA compliance and reduced MPLS costs by 40% while maintaining carrier-grade performance.
A global call center utilizes the C2811-SHDSL-V3/K9 DSL bundle with SP Svcs (128F/512D) to aggregate voice, CRM and real-time analytics traffic over four-wire SHDSL. Advanced QoS features on the WIC-1SHDSL-V3 module enable strict prioritization of SIP sessions and packet-loss protection. Outcome: 40% reduction in voice jitter, 30% improvement in application response times and streamlined carrier billing under a unified SP-managed service.
An electricity utility implements the Cisco C2811-SHDSL-V3/K9 with SP Svcs at 128 kbps upstream and 512 kbps downstream to connect remote substation RTUs over a 4-wire SHDSL circuit. The router’s embedded security, deterministic latency and service-provider-managed DSL ensure real-time telemetry for load balancing and fault detection. Outcome: 24/7 operational visibility, sub-second alarm delivery and 25% lower OPEX compared to legacy leased lines.
To get the detailed certification, please go to the Compliance Center.
 C2811-SHDSL-V3/K9 |  C2821-4SHDSL/K9 |  C2811-H-VSEC/K9 |  C2811-4SHDSL/K9 |  CISCO2851-HSEC/K9 | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Modular | Fixed | Modular | Fixed | Modular |
| Broadband | DSL | DSL | N/A | 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 / VPN |
| Compliance Standards | FCC / CE | IEEE 802.3, IEEE 802.3u | FCC / CE | FCC, CE | FCC, CE |
| Connectivity Type | Wired | Wired | Wired | Wired | Wired |
| Depth | N/A | N/A | N/A | N/A | 10.75 inches |
| Device Type | Router | Router | Router | Router | Router |
| EMC | N/A | N/A | N/A | N/A | FCC, CE |
| Ethernet Technology | 10/100 | 10/100 | 10/100 | 10/100 | 10/100 |
| Expansion Slots | NIM / EHWIC | EHWIC | EHWIC | 2 WIC / 2 NM | EHWIC |
| Features | VPN / IPv6 Compatible / Firewall | VPN, Firewall, IPv6 Compatible | Modular / VPN / Firewall / Integrated Security | VPN, Integrated DSL, Modular Expansion, VOIP, Firewall | VPN / IPv6 Compatible / Firewall |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 256 MB | 128 MB | 256 MB | 256 MB | 256 MB |
| Form Factor | Rack-mount | Rack-mount / Desktop | Rack-mount | Rack-mount | Rack-mount |
| Height | N/A | N/A | N/A | N/A | 1.73 inches |
| High Availability Support | Supported | Supported | Not Supported | Supported | Supported |
| Integrated Services | Voice | Voice, Video, WAN Optimization | Voice / Security | Voice, Data, Security | Voice / Video |
| Interface Ports | RJ-45 | RJ-45 | RJ-45 | RJ-45 | RJ-45 |
| LAN Ports | Modular LAN | 2 LAN Ports | 2 LAN Ports | 2 LAN Ports | Modular LAN |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 256 MB | 256 MB | 256 MB | 128 MB | 256 MB |
| Modular Slots Available | 2 Slots | 2 Slots | 2 Slots | 2 Slots | 2 Slots |
| Network Protocols | IPv4 / IPv6 | IP, UDP, TCP, ICMP | IPv4 / IPv6 | IPv4, IPv6, MPLS, VPN | IPv4, IPv6 |
| Power | 250W | N/A | 350 W | 130 Watts | 80 W |
| Power Source | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply / Redundant |
| Product Name | Cisco C2811-SHDSL-V3/K9 | Cisco 2821 Integrated Services Router - 4SHDSL/K9 | Cisco 2811 Integrated Services Router - High Security (C2811-H-VSEC/K9) | Cisco C2811-4SHDSL/K9 Integrated Services Router | Cisco 2851 Integrated Services Router - High Security (CISCO2851-HSEC/K9) |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | Telnet / SSH / SNMP | HTTP, HTTPS, SSH, Telnet | Telnet / SSH / SNMP / HTTP/HTTPS | Telnet, SSH, SNMP | Telnet, SSH, SNMP, HTTP/HTTPS |
| Routing Protocols | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF, BGP, EIGRP, RIP, Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing |
| Safety | N/A | N/A | N/A | N/A | N/A |
| Speed/Capacity | N/A | N/A | 10/100 | Fast Ethernet | N/A |
| Stacking Capability | No | No | No | No | No |
| Telecom | N/A | N/A | N/A | N/A | N/A |
| Throughput Capacity | N/A | 75 Mbps | 50 Mbps | 28 Mbps | 0.025 Gbps |
| Use Case | Enterprise | Enterprise | Enterprise | Enterprise, Business | Enterprise |
| VPN Support | IPSec | IPSec | IPSec / SSL VPN | IPSec / SSL VPN | IPSec / SSL VPN |
| WAN Configuration | WAN | Dedicated WAN | WAN | WAN | Dual WAN |
| WAN Ports | 1 WAN | 4 WAN | 2 WAN | 4 WAN | 2 WAN |
| Weight | N/A | N/A | N/A | N/A | 12 lbs |
| Wi-Fi Standard | N/A | N/A | N/A | N/A | N/A |
| Width | N/A | N/A | N/A | N/A | 18 inches |
| Wireless Support | No | No | No | No | No |
2811 SHDSL V3 bundle ensures reliable WAN connectivity. WIC-1SHDSL-V3 supports stable UC and voice services for branch offices.
Durable and predictable. Maintains stable SHDSL connections with consistent voice and UC performance.
Easy to deploy and manage. Provides seamless DSL WAN connectivity for small to medium branches.
Reliable Cisco solution. Supports branch offices with stable UC, voice, and data communications over SHDSL.
High-performing and robust. Ensures smooth voice and UC operations across branch offices with SHDSL links.
The Cisco 2811 DSL Bundle (C2811-SHDSL-V3/K9) is an integrated branch router with a WIC-1SHDSL-V3 4-wire SHDSL interface, SP Svcs license, and 128K forwarding/512K data-plane memory to deliver reliable business-class connectivity.
The WIC-1SHDSL-V3 module supports symmetrical data rates from 192 kbps up to 15 Mbps per pair, enabling scalable bandwidth over four-wire copper loops.
The WIC-1SHDSL-V3 uses a four-wire SHDSL configuration, leveraging two pairs for transmit and two pairs for receive to maximize symmetrical throughput.
The SP Svcs license unlocks advanced features like BGP, MPLS VPN, quality-of-service, and enhanced traffic management for carrier-grade deployments.