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by Cisco
Product Line: Cisco 2900 Series
Product Type: Router
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Product Description

The C2951-VSEC-SRE/K9 is a Cisco 2951 SRE Bundle featuring a SRE 700, PVDM3-32, UC, and SEC Lic. PAK, designed for modular expansion with 4 EHWIC slots, 2 SIM slots, and 1 SFP slot within a 2U form factor. It supports DDR2 SDRAM memory, with 512 MB installed and expandable up to 2 GB, alongside 256 MB of flash memory, upgradeable to 8 GB. This router facilitates a broad range of routing protocols including OSPF, IS-IS, BGP, EIGRP, and more, while offering Ethernet, Fast Ethernet, and Gigabit Ethernet data link protocols, capable of operating within a power range of AC 120 V to AC 230 V.

FAQs for the C2951-VSEC-SRE/K9

  • What is the form factor and size of the Cisco 2951 SRE Bundle?
    The Cisco 2951 SRE Bundle is external, modular, and has a 2U form factor, with dimensions of 47 cm in depth and 8.9 cm in height.
  • How many Enhanced High-Speed WAN Interface Card (EHWIC) slots does the Cisco 2951 have?
    The Cisco 2951 features 4 EHWIC slots.
  • What memory capacity does the Cisco 2951 support?
    It supports 512 MB of DDR2 SDRAM memory installed, with a maximum capacity of 2 GB.
  • Can you detail the routing protocols supported by the Cisco 2951?
    The router supports OSPF, IS-IS, BGP, EIGRP, DVMRP, PIM-SM, IGMPv3, GRE, PIM-SSM, static IPv4 routing, and static IPv6 routing.
  • What is the maximum Flash Memory capacity for the Cisco 2951?
    The maximum Flash Memory capacity is 8 GB.
  • What type of connectivity technology does the Cisco 2951 utilize?
    The Cisco 2951 utilizes Ethernet connectivity technology.
  • How many digital ports are available on the Cisco 2951 SRE Bundle?
    There are 32 digital ports available on the Cisco 2951 SRE Bundle.
  • What power specifications does the Cisco 2951 operate under?
    It operates under a minimum power of AC 120 V (47 Hz) and a maximum power of AC 230 V (63 Hz).
  • What is the weight of the Cisco 2951 router?
    The Cisco 2951 router weighs 16.56 Kilograms.
  • How many SFP slots does the Cisco 2951 offer?
    The Cisco 2951 offers 1 SFP slot.

Product Review

The CISCO C2951-VSEC-SRE/K9 offers a comprehensive set of features suitable for medium to large-scale operations, including support for a wide range of routing protocols such as OSPF, BGP, and EIGRP, and the capacity for significant expansion with its 4 EHWIC slots, 2 SIM slots, and a single SFP port. However, its initial DRAM and Flash memory capacities at 512 MB and 256 MB, respectively, may require upgrades for demanding applications, which adds to the total cost of ownership. Additionally, the unit's power consumption, requiring a minimum of AC 120 V and a maximum of AC 230 V, along with its 2U rack space requirement, should be considered when planning for integration into existing network infrastructure.


The CISCO C2951-VSEC-SRE/K9 is a versatile and powerful networking solution designed for medium to large-sized business applications. This product is a bundle that includes the Cisco 2951 SRE Bundle, SRE 700, PVDM3-32, UC, and SEC Lic. PAK, providing a comprehensive set of features to meet a variety of networking needs. At the heart of its design, the device offers three Gigabit Ethernet (GE) interfaces, ensuring high-speed connectivity and efficient network performance. To accommodate a range of expansion needs, the unit includes four Enhanced High-Speed WAN Interface Card (EHWIC) slots and two Subscriber Identity Module (SIM) slots, alongside a single Small Form-factor Pluggable (SFP) slot, providing flexibility in network configuration and connectivity options. With a 2U form factor, this external, modular device measures 47 cm in depth and 8.9 cm in height, fitting comfortably into standard networking racks and cabinets. The hardware specifications reveal a device built for scalability and performance: - DRAM Memory starts at 512 MB, installed with DDR2 SDRAM, and can be expanded up to 2 GB to support more demanding applications and improve overall system responsiveness. - Flash Memory is provided at 256 MB initially, with the capability to expand up to 8 GB, offering ample space for operating system images and configurations. The routing capabilities of the CISCO C2951-VSEC-SRE/K9 are extensive, supporting protocols such as OSPF, IS-IS, BGP, EIGRP, DVMRP, PIM-SM, IGMPv3, GRE, PIM-SSM, and both static IPv4 and IPv6 routing. This wide range of supported protocols ensures that the device can be deployed in various network architectures, facilitating efficient data routing and network management. Data Link Protocol support includes Ethernet, Fast Ethernet, and Gigabit Ethernet, enabling the device to handle high-speed data transmission and connect with a broad array of network devices. The inclusion of 32 digital ports enhances its capacity to interface with other devices, making it a central piece in any networking setup.
  • Power requirements are flexible, with a minimum input of AC 120 V (47 Hz) and a maximum of AC 230 V (63 Hz), accommodating various electrical environments.
  • The item weighs 16.56 Kilograms, indicating a sturdy build quality designed for durability and long-term operation.
  • Controller Type is categorized as Switch, emphasizing its role in managing network traffic efficiently.
Voltage support stands at 100 Volts, ensuring compatibility with standard power supplies. Connectivity technology is centered around Ethernet, facilitating easy integration into existing network infrastructures and supporting high-speed data transfer rates. Overall, the CISCO C2951-VSEC-SRE/K9 is engineered to meet the demanding requirements of modern network environments, offering scalable memory options, flexible connectivity, and comprehensive routing and data link protocol support. Its robust feature set makes it an ideal choice for businesses looking to enhance their network infrastructure with a reliable, high-performance device.


Model and MakeCISCO C2951-VSEC-SRE/K9
ConfigurationCisco 2951 SRE Package, SRE 700, PVDM3-32, Unified Communications, Security License PAK
Interfaces3 Gigabit Ethernet ports
EHWIC Slots4 slots
SIM Slots2 slots
SFP Slots1 slot
Size2 Rack Unit
Chassis TypeModular external - 2U
Depth47 centimeters
Height8.9 centimeters
Base Flash Storage256 MB
Maximum Flash Storage8 GB
Supported Routing ProtocolsOSPF, IS-IS, BGP, EIGRP, DVMRP, PIM-SM, IGMPv3, GRE, PIM-SSM, IPv4 static routes, IPv6 static routes
Network ProtocolsEthernet, Fast Ethernet, Gigabit Ethernet
Digital Signal Processors32 Ports
Minimum Input VoltageAC 120V (47 Hz)
Maximum Input VoltageAC 230V (63 Hz)
Weight16.56 kg
Total Ports3 Ethernet Ports
Operational Voltage100V
Management InterfaceSwitch
Network Connection TypeWired Ethernet

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