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by Cisco
Product Line: Cisco 2900 Series
Product Type: Router
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Original price $0.00 - Original price $0.00
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Title: Surplus

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Product Description

The C2921CMESRSTK9 Cisco integrates a comprehensive set of networking features with three Ethernet ports supporting 10/100/1000 speeds and 32 digital ports, designed to accommodate a variety of communication needs. It includes a 2921 Voice Bundle with PVDM3-32, FL-CME-SRST-25, UC License PAK, and offers extensive scalability options through 10 expansion slots, two service module slots, one internal service module slot, and four enhanced high-speed WAN interface card slots. Supporting IPSec and IPv6, with capabilities for Class-Based Weighted Fair Queuing and Weighted Random Early Detection, this device ensures reliable and secure data transmission over Ethernet, Fast Ethernet, and Gigabit Ethernet protocols.

FAQs for the C2921CMESRSTK9

  • What is the maximum RAM capacity of the device?
    The device supports up to 2 GB of RAM.
  • How many Ethernet ports are available on the 2921 Voice Bundle?
    There are 3 RJ-45 Ethernet ports.
  • Can the device support IPv6?
    Yes, IPv6 is supported.
  • What is the speed of the Ethernet ports on this model?
    Ethernet ports support 10/100/1000 Mbps speeds.
  • Does the device have MPLS support?
    Yes, MPLS support is included.
  • What type of memory technology is used in the 2921 Voice Bundle?
    DRAM technology is used for memory.
  • How many enhanced high-speed WAN interface card slots does it have?
    There are 4 enhanced high-speed WAN interface card slots.
  • What is the flash memory capacity of the device?
    Flash memory is 256 MB installed, with a maximum capacity of 8 GB.
  • What remote management protocols are supported?
    SNMP and RMON protocols are supported for remote management.
  • What are the dimensions and weight of the device?
    The device measures 47 cm in width, 43.8 cm in depth, 8.9 cm in height, and weighs 13.2 kg.

Product Review

The Cisco C2921CMESRSTK9 offers a comprehensive networking solution with a notable capacity for voice and unified communications, supported by a PVDM3-32 for voice processing and a UC license pack, making it suitable for medium-sized businesses requiring advanced communication services. However, its initial RAM and Flash memory allocations are on the lower end, with 512 MB and 256 MB respectively, necessitating potential upgrades for demanding applications. Additionally, its versatility is highlighted by the inclusion of 10 expansion slots, 2 service module slots, and 4 enhanced high-speed WAN interface card slots, allowing for significant customization and scalability to meet varying networking needs.


The Cisco C2921CMESRSTK9 is a comprehensive networking solution designed to meet the demands of modern communication needs. As part of the 2921 Voice Bundle, this router is equipped with features tailored for voice communication over the network, ensuring seamless connectivity and reliable service delivery. Its hardware specifications are detailed below, highlighting its capacity to handle a wide range of networking tasks efficiently. This model comes with 32 digital ports, providing ample connectivity for digital voice channels, and three Ethernet ports supporting RJ-45 connectors. The Ethernet ports are capable of handling speeds of 10/100/1000, making it suitable for various network speeds and requirements. The bundle includes the PVDM3-32 for voice processing, FL-CME-SRST-25 for call management, and a UC License PAK, ensuring a comprehensive solution for voice communication needs. - Number of Digital Ports: 32 - Number of Ethernet Ports: 3 (RJ-45) - Ethernet Port Speed: 10/100/1000 For expansion, the Cisco C2921CMESRSTK9 offers 10 expansion slots, including two service module slots, one internal service module slot, and four enhanced high-speed WAN interface card slots. This array of slots allows for significant flexibility in configuring the router to meet specific network requirements. In terms of memory, the router comes with 512 MB of RAM installed, which can be expanded up to 2 GB. The flash memory starts at 256 MB and can also be upgraded to 8 GB. These memory capacities ensure that the router can handle complex routing tables, extensive firmware features, and future upgrades. The physical dimensions of the router are 47 cm in width, 43.8 cm in depth, and 8.9 cm in height, with a total weight of 13.2 kg. This size makes it suitable for rack mounting in a standard networking rack, ensuring it integrates well into a data center or networking closet. On the protocol front, the Cisco C2921CMESRSTK9 supports Ethernet, Fast Ethernet, and Gigabit Ethernet for data link protocols, IPSec for network/transport protocol, and SNMP and RMON for remote management protocols. This wide range of supported protocols ensures compatibility with most network infrastructures and the ability to manage the router remotely. Additional features include MPLS support, IPv6 support, class-based weighted fair queuing, and weighted random early detection, which are crucial for maintaining high-quality service levels across the network. The router also complies with IEEE standards 802.1ah and 802.1ag, ensuring interoperability with other networking equipment. For power supply, the router operates on a voltage of 120/230 VAC, making it adaptable to various power sources and ensuring reliable operation across different regions. In summary, the Cisco C2921CMESRSTK9 is designed to offer a versatile and efficient networking solution. Its range of features and expansion capabilities make it well-suited for businesses looking to deploy a reliable networking infrastructure that supports voice, data, and security services comprehensively.


Part Number Cisco C2921CMESRSTK9
Producer Cisco
Digital Port Count 32
Ethernet Port Count 3 (RJ-45)
Speed of Ethernet Ports 10/100/1000 Mbps
Configuration 2921 Voice Bundle with PVDM3-32, FL-CME-SRST-25, UC License PAK
Expansion Slot Quantity 10
Service Module Slot Number 2
Internal Service Module Slot Count 1
Enhanced HWIC Slot Quantity 4
Initial RAM / Maximum RAM 512 MB / 2 GB
Memory Type DRAM
Initial Flash Memory / Maximum Flash Memory 256 MB / 8 GB
Device Width 47 cm
Device Depth 43.8 cm
Device Height 8.9 cm
Device Weight 13.2 kg
Supported Data Link Protocols Ethernet, Fast Ethernet, Gigabit Ethernet
Supported Network/Transport Protocols IPSec
Protocols for Remote Management SNMP, RMON
Support for MPLS Yes
IPv6 Compatibility Yes
Support for Class-Based Weighted Fair Queuing Yes
Support for Weighted Random Early Detection Yes
Standards Compliance IEEE 802.1ah, IEEE 802.1ag
Power Requirements 120/230 VAC

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