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The 2901, 2911, 2921 and 2951

 

The 2900 series is more widely used than it's 1900 and 3900 counterparts, as it is scalable enough to provide service to larger SMB networks, and also to large branch offices or callcenters. The 2900 series has 4 different sub-models, the 2901, 2911, 2921 and 2951.

 

 

The 2901 Router 

 

The 2901 is a 1U 19" rack mountable router, and is a good choice for branch locations or small businesses that need more options for interface support, power and services than the 1900 series can provide. With 2 WAN ports and 4 ehwic slots, the 2901 can be upgrade with a variety of port configurations and voice options. The 2901 also supports PVDM3 packet voice data modules, which can handle ip telephony processing for your network. More details on this router are available on our 2901 product information page, including specs, features, and pricing.  


 

General Specifications

Onboard 10/100/1000 WAN ports

2

RJ-45 Ports

2

EHWIC slots

4 (2 doublewide)

ISM Slots

1

Onboard PVDM Slots

2

Memory (ECC DRAM)

512 MB default/ 2.0 GB maximum

External Compact Flash

256 MB default/ 8.0 GB maximum (4 GB per slot)

External USB flash memory slots

2

Console ports

1 USB (mini type B)

1 Serial

Serial Aux Ports

1

 

 

The 2911 Router 

 

The 2911 series has a few direct upgrades over the 2901, including an additional WAN ports, and most notably the inclusion of an external service module slot. This SM slot can be used to integrate analog voice gateways, etherswitch modules, or SRE Service modules, making the 2911 a good base option for networks that need their routers to provide more than just general routing services. For additional information on the 2911, check out our 2911 product information page.

 

 

General Specifications

Onboard 10/100/1000 WAN ports

3

RJ-45 Ports

3

EHWIC slots

4 (2 doublewide)

Service Module slots

1

ISM slots

1

Onboard PVDM slots

2

Memory (ECC DRAM)

512 MB default/ 2.0 GB maximum

External Compact Flash

256 MB default/ 8.0 GB maximum (4 GB per slot)

External USB flash memory slots

2

Console ports

1 USB (mini type B)

1 Serial

Serial Aux Ports

1

 

 

The 2921 Router 

 

The 2921 is a step above the 2911, increasing the number of PVDM ports to 3, and providing support for additional users. The 2921 supports a higher maximum port density through Etherswitch ports, more SRST and CUCM users, twice as many concurrent SIP sessions, and so on. If your router needs to provide services to more than 50 users, you may want to compare your service requirements with the 2911 and 2921 datasheets to see which is right for you. For additional information on the 2921, check out our 2921 product information page.

 

 

General Specifications

Onboard 10/100/1000 WAN ports

3

RJ-45 Ports

3

SFP Ports

1 (disables use of corresponding RJ-45)

EHWIC slots

4 (2 doublewide)

Service Module slots

1 (fits doublewide)

ISM slots

1

Onboard PVDM slots

3

Memory (ECC DRAM)

512 MB default/ 2.0 GB maximum

External Compact Flash

256 MB default/ 8.0 GB maximum (4 GB per slot)

External USB flash memory slots

2

Console ports

1 USB (mini type B)

1 Serial

Serial Aux Ports

1

 

 

The 2951 Router 

 

The 2951 is a performance and scale upgrade to the 2921. With an additional service module slot, support for 4GB of memory and a greater number of users for all of its services, the 2951 offers the maximum amount of scalability and hardware customization in the 2900 series, before a 3900 is required. For full product specifications on the 2951 router, please refer to our 2951 product information page.

 

General Specifications

Onboard 10/100/1000 WAN ports

3

RJ-45 Ports

3

SFP Ports

1 (disables use of corresponding RJ-45)

EHWIC slots

4 (2 doublewide)

Service Module slots

2 (1 doublewide)

ISM slots

1

Onboard PVDM slots

3

Memory (ECC DRAM)

512 MB default/ 2.0 GB maximum

External Compact Flash

256 MB default/ 8.0 GB maximum (4 GB per slot)

External USB flash memory slots

2

Console ports

1 USB (mini type B)

1 Serial

Serial Aux Ports

1

 

 

More Info 


Back to our 1900 / 2900 / 3900 information page


1900 Series Information


3900 Series Information

 

   

Cisco 2900 Routers

CISCO2901/K9

Cisco 2901 ISR Router

Cisco 2901 router with 4 EHWIC slots.

License: IP Base

   

CISCO2901-SEC/K9

Cisco 2901 Security Router

Cisco 2901 security bundle with 4 EHWIC slots.

License: IP Base, SEC

   

CISCO2901-V/K9

Cisco 2901 Voice Router

Cisco 2901 voice bundle with 4 EHWIC slots.

License: IP Base, UC

   

CISCO2911/K9

Cisco 2911 Router

Cisco 2911 router with 1 SM and 4 EHWIC slots.

License: IP Base

   

2911-CME-SRST/K9

Cisco 2911 Router

Cisco 2911 SRST Bundle with 1 SM and 4 EHWIC slots.

License: IP Base, UC, CME-SRST

   

CISCO2911-SEC/K9

Cisco 2911 Security Router

Cisco 2911 Security Bundle w/ 1 SM & 4 EHWIC slots.

License: IP Base, SEC

   

CISCO2921/K9

Cisco 2921 Router

Cisco 2921 Router w/ 1 SM & 4 EHWIC slots.

License: IP Base

   

2921-CME-SRST/K9

Cisco 2921 SRST Router

Cisco 2921 SRST Bundle w/ 1 SM & 4 EHWIC slots.

License: IP Base, UC, SRST

   

CISCO2921-SEC/K9

Cisco 2921 SEC Router

Cisco 2921 Security Bundle w/ 1 SM & 4 EHWIC slots.

License: IP Base, SEC

   

CISCO2951/K9

Cisco 2951 Router

Cisco 2951 Router w/ 2 SM & 4 EHWIC slots.

License: IP Base