Cisco 2900 Series Integrated Services Routers

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Cisco 2900 Series builds on the best-in-class offering of the existing Cisco 2800 Series Integrated Services Routers by offering four platforms (Figure 1): the Cisco 2901, 2911, 2921, and 2951 Integrated Services Routers. All Cisco 2900 Series Integrated Services Routers offer embedded hardware encryption acceleration, voice- and video-capable digital signal processor (DSP) slots, optional firewall, intrusion prevention, call processing, voicemail, and application services.

Cisco 2901 Cisco 2911 Cisco 2921 Cisco 2951
Services and Slot Density
Embedded Hardware-Based Cryptography and Acceleration (IPSec + SSL) Yes Yes Yes Yes
Cisco Unified SRST Sessions 35 50 100 250
Cisco Unified CCME Sessions 35 50 100 150
Total Onboard WAN 10/100/1000 Ports 2 3 3 3
RJ-45-Based Ports 2 3 3 3
SFP-Based Ports (use of SFP port disables the corresponding RJ-45 port) 0 0 1 1
Service Module Slots 0 1 1 2
Double-Wide Service Module Slots (use of a double-wide slot will occupy all single-wide service module slots in a 2900) 0 0 1 1
EHWIC Slots 4 4 4 4
Double-Wide EHWIC Slots (use of a double-wide EHWIC slot will consume two EHWIC slots) 2 2 2 2
ISM Slots 1 1 1 1
Onboard DSP (PVDM) Slots 2 2 3 3
Memory DDR2 ECC DRAM-Default 512 MB 512 MB 512 MB 512 MB
Memory (DDR2 ECC DRAM)-Maximum 2 GB 2 GB 2 GB 2 GB
Compact Flash (External)-Default slot 0: 256 MB

slot 1: none

slot 0: 256 MB

slot 1: none

slot 0: 256 MB

slot 1: none

slot 0: 256 MB

slot 1: none

Compact Flash (External)-Maximum slot 0: 4 GB

slot 1: 4 GB

slot 0: 4 GB

slot 1: 4 GB

slot 0: 4 GB

slot 1: 4 GB

slot 0: 4 GB

slot 1: 4 GB

External USB 2.0 Flash Memory Slots (Type A) 2 2 2 2
USB Console Port (Type B) (up to 115.2 kbps) 1 1 1 1
Serial Console Port 1 1 1 1
Serial Auxiliary Port 1 1 1 1
Power-Supply Options AC and PoE AC, PoE, and DC AC, PoE, and DC AC, PoE, and DC
RPS Support (External) No Cisco RPS 2300 Cisco RPS 2300 Cisco RPS 2300
Rack Height 1RU (rack unit) 2RU 2RU 2RU

 

Product Name Product Description
CISCO2901/K9 Cisco 2901 with 2 onboard GE, 4 EHWIC slots, 2 DSP slots, 1 ISM slot, 256MB CF default , 512MB DRAM default, IP Base
CISCO2911/K9 Cisco 2911 with 3 onboard GE, 4 EHWIC slots, 2 DSP slots, 1 ISM slot, 256MB CF default , 512MB DRAM default, IP Base
CISCO2921/K9 Cisco 2921 with 3 onboard GE, 4 EHWIC slots, 3 DSP slots, 1 ISM slot, 256MB CF default , 512MB DRAM default, IP Base
CISCO2951/K9 Cisco 2951 with 3 onboard GE, 4 EHWIC slots, 3 DSP slots, 1 ISM slot, 256MB CF default , 512MB DRAM default, IP Base
SL-29-DATA-K9 Data License for Cisco 2901-2951
SL-29-UC-K9 Unified Communications License for Cisco 2901-2951
SL-29-SEC-K9 Security License for Cisco 2901-2951

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