The Cisco 2951 router, supporting voice module, is designed for small offices.
Figure 1 shows the appearance of the CISCO2951/k9.
Table 1 shows the Quick Specs of the CISCO2951/k9.
3 integrated 10/100/1000 Ethernet ports with 1 port capable of RJ-45 or SFP connectivity
2 service module slot
1 Internal Service Module slot
3 onboard digital signal processor slots
4 Enhanced high-speed WAN interface card (EHWIC) slots
512 MB (installed) / 2 GB (max) - DDR2 SDDRAM Memory
256 MB (installed) / 8 GB (max)
47 cm x 43.8 cm x 8.9 cm
Figure 2 shows the front panel of the Cisco 2951 router.
① AC OK ② On/Off switch ③ AC power connector ④ Optional RPS adapter(blank panel shown) ⑤ LEDs area
Table 2 shows the LEDs area description.
Solid green indicates normal operation.
System is booting or is in ROM monitor mode.
Power is off or system board is faulty.
Solid or blinking indicates packet activity between the forwarding and routing engine and any I/O port.
No packet transfers are occurring.
PoE is available.
Power supply is not supplying PoE power.
System is running on external RPS power supply.
System is running.
System is not running.
Figure 3 shows some LEDs on the back panel of the Cisco 2951 router.
① Compact flash 0 and 1 (0, right) ② ISM ③ PVDM3 0,1 and 2 (0 right) ④ EN (Enable USB console) ⑤ EN (Enable RJ-45 console) ⑥ SFP S ⑦ SFP EN ⑧ S (Speed) ⑨ L (Link)
Table 3 shows the description of these LEDs on the back panel.
Flash memory is busy.
Initialized with error.
Blinking Green then turns off
CompactFlash is ready for removal.
Flash memory is busy.
Initialized with error.
Blinking Green then turns off
CompactFlash is ready for removal.
1 blink + pause
GE port operating at 10Mb/s.
2 blink + pause
GE port operating at 100Mb/s.
3 blink + pause
GE port operating at 1000 Mb/s.
GE link is established.
No GE link is established.
EN (RJ-45 console port)
The RJ-45 console port is active.
EN (USB serial console port)
The USB console port is active.
Initialized with error.
Blinking frequency indicates port speed.
Present and enabled.
Present with failure.
PVDM 0, 1 and 2
PVDM is initialized.
PVDM is detected but not initialized.
No PVDM installed.
Figure 4 show the expansion slots and ports on the back panel.
The Cisco 2951/K9 supports expansion functions with modules and cards.
① Compact flash 0 and 1 (0, right) ② EHWIC 0,1,2 and 3 (0, far right) ③ USB serial port ④ RJ-45 serial console port ⑤ AUX port ⑥ AUX port
⑦ 10/100/1000 Ethernet port (GE 0/1 and GE 0/2) ⑧ 10/100/1000 Ethernet port GE 0/0 ⑨ Ground ⑩ USB 0 and 1 (1, top) ⑪ Service module slots
Figure 5 show the unboxing view of CISCO2951/K9.
Modules & Licenses
Table 4 shows some recommended models for this router.
Enhanced EtherSwitch Service Module, L2/L3 switching, 16* 10/100/1000 GE ports, Enhanced POE, Cisco EnergyWise technology
Enhanced EtherSwitch Service Module, L2/L3 switching, 24 * 10/100/1000 GE ports, Enhanced POE, Cisco EnergyWise technology
Cisco Voice/WAN Card VWIC3-2MFT-G703
2-Port Serial WAN Interface Card Cisco Router High-Speed WAN Interface card
Cisco 1900, 2900, 3900 Router EHWIC WAN Card EHWIC-1GE-SFP-CU
Four port 10/100/1000 Base-TX Gigabit Ethernet switch interface card for Cisco 1900 2900 3900 Routers
Internal Services Module (ISM) with Services Ready Engine
16-channel high-density voice DSP module
256MB to 1GB Compact Flash Upgrade for Cisco 1900,2900,3900
256MB to 2GB Compact Flash Upgrade for Cisco 1900,2900,3900
256MB to 512MB CF Upgrade for Cisco 1900,2900,3900 ISR
256MB to 4GB Compact Flash Upgrade for Cisco 1900,2900,3900
1GB USB Flash Token
Cisco 2900 License L-SL-29-SEC-K9 Security E-Delivery PAK for Cisco 2901-2951
Cisco Application Experience License ISR 2900 Series - includes licenses for: AppX, DATA and WAASX
Cisco 2900 License L-SL-29-SECNPE-K9 SEC No Payload Encryption E PAK for Cisco 2901-2951
Cisco 2900 License L-SL-29-UC-K9= Unified Communication E-Delivery PAK for Cisco 2901-2951
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Rack-mountable - modular - 2U
Data Link Protocol
Ethernet, Fast Ethernet, Gigabit Ethernet
Network / Transport Protocol
OSPF, IS-IS, BGP, EIGRP, DVMRP, PIM-SM, static IP routing, IGMPv3, GRE, PIM-SSM, static IPv4 routing, static IPv6 routing, policy-
based routing (PBR), MPLS, Bidirectional Forwarding Detection (BFD), IPv4-to-IPv6 Multicast
Remote Management Protocol
SNMP, RMON, TR-069
Firewall protection, VPN support, MPLS support, Syslog support, IPv6 support, Class-Based Weighted Fair Queuing (CBWFQ),
Weighted Random Early Detection (WRED), Web Services Management Agent (WSMA), NetFlow
IEEE 802.3, IEEE 802.1Q, IEEE 802.3af, IEEE 802.3ah, IEEE 802.1ah, IEEE 802.1ag, ANSI T1.101, ITU-T G.823, ITU-T G.824
512 MB (installed) / 2 GB (max)
256 MB (installed) / 8 GB (max)
Link activity, power
Expansion and Connectivity
3 x 10Base-T/100Base-TX/1000Base-T - RJ-45 ¦ Management : 1 x console - RJ-45 ¦ Management : 1 x console - mini-USB Type B ¦
Serial : 1 x auxiliary - RJ-45 ¦ USB : 2 x 4 pin USB Type A ¦ 1 x SFP (mini-GBIC)
4 (total) / 4 (free) x EHWIC ¦ 3 (total) / 3 (free) x PVDM ¦ 2 (total) / 1 (free) x CompactFlash Card ¦ 1 (total) / 1 (free) x ISM ¦ 2 (total) /
2 (free) x service module (SM)
Power supply - internal
AC 120/230 V ( 50/60 Hz )
Dimensions (W × D × H)
17.2 × 18.5 × 3.5 in (47 x 43.8 x 8.9 cm)
39.3 lbs (17.82 Kg)
29.1 lbs (13.2 Kg)
Rack Mounting Kit
CISPR 22 Class A, CISPR 24, EN55024, EN55022 Class A, EN50082-1, AS/NZS 60950-1, ICES-003 Class A, CS-03, R&TTE,
FCC CFR47 Part 15, EN300-386, UL 60950-1, IEC 60950-1, EN 60950-1, BSMI CNS 13438, AS/NZS 3548 Class A, CAN/CSA
C22.2 No. 60950-1, VCCI V-3, EN 61000, TIA/EIA/IS-968
Software / System Requirements
Cisco IOS IP Base
Service & Support
90 days warranty
Service & Support Details
Limited warranty - 90 days
Min Operating Temperature
Max Operating Temperature
Humidity Range Operating
5 - 85%
SMARTnet Support Quick Guide
Cisco SMARTnet Overview - Cisco SMARTnet Service Codes - Cisco SMARTnet Types
Cisco SMARTnet F.A.Q
CISCO2951/K9 SMARTnet Service Tool
Product Name Detail Price CON-3SNT-2951 3YR SNTC 8X5XNBD Cisco 2951 w/3 GE Inquiry CON-3SNTP-2951 3YR SNTC 24X7X4 Cisco 2951 w/3 GE Inquiry CON-3OSP-2951 3YR SNTC 24X7X4OS Cisco 2951 w/3 GE Inquiry CON-SNT-2951 SNTC-8X5XNBD Cisco 2951 w/3 GE Inquiry CON-SNTE-2951 SNTC-8X5X4 Cisco 2951 w/3 GE Inquiry CON-SNTP-2951 SNTC-24X7X4 Cisco 2951 w/3 GE Inquiry CON-OS-2951 SNTC-8X5XNBDOS Cisco 2951 w/3 GE Inquiry CON-OSE-2951 SNTC-8X5X4OS Cisco 2951 w/3 GE Inquiry CON-OSP-2951 SNTC-24X7X4OS Cisco 2951 w/3 GE Inquiry CON-ECMU-2951 SWSS UPGRADES Cisco 2951 w/3 GE.4 EHWIC.3 DSP.2 SM.256MB CF. Inquiry CON-NCD2-2951 CMB SVC 24X7X2 NCD2 Cisco 2951 w/3 GE Inquiry CON-NCD2P-2951 CMBSV 24X7X2OS NCD2P Cisco 2951 w/3 GE Inquiry CON-NCD4P-2951 CMBSV 24X7X4OS NCD4P Cisco 2951 w/3 GE Inquiry CON-NCD4S-2951 CMB SV 8X5X4OS NCD4S Cisco 2951 w/3 GE Inquiry CON-NCDAU-2951 CMB SVC SAU NCDAU Cisco 2951 w/3 GE Inquiry CON-NCDCS-2951 CBSV 8X5XNBDOS NCDCS Cisco 2951 w/3 GE Inquiry CON-NCDE-2951 CMB SVC 8X5X4 NCDE Cisco 2951 w/3 GE Inquiry CON-NCDP-2951 CMB SVC 24X7X4 NCDP Cisco 2951 w/3 GE Inquiry CON-NCDS1-2951 CMBSVC 8X5XNBD NCDS1 Cisco 2951 w/3 GE Inquiry CON-NCDS3-2951 CMB SVC 24X7X4 NCDS3 Cisco 2951 w/3 GE Inquiry CON-NCDSO-2951 CMBSV 24X7X4OS NCDSO Cisco 2951 w/3 GE Inquiry CON-NCDT-2951 CMBSVC 8X5XNBD NCDT Cisco 2951 w/3 GE Inquiry CON-NCDW-2951 CMB SPT SVC SW NCDW Cisco 2951 w/3 GE Inquiry CON-NCF2-2951 CMB SVC 24X7X2 Cisco 2951 w/3 GE Inquiry CON-NCF2P-2951 CMB SVC 24X7X2OS Cisco 2951 w/3 GE Inquiry CON-NCF4P-2951 CMB SVC 24X7X4OS Cisco 2951 w/3 GE Inquiry CON-NCF4S-2951 CMB SVC 8X5X4OS Cisco 2951 w/3 GE Inquiry CON-NCFAU-2951 CMB SVC SAU + UPGR Cisco 2951 w/3 GE Inquiry CON-NCFCS-2951 CMB SVC 8X5XNBDOS Cisco 2951 w/3 GE Inquiry CON-NCFE-2951 CMB SVC 8X5X4 Cisco 2951 w/3 GE Inquiry CON-NCFP-2951 CMB SVC 24X7X4 Cisco 2951 w/3 GE Inquiry CON-NCFS1-2951 CMB SVC SU1 8X5XNBD Cisco 2951 w/3 GE Inquiry CON-NCFS3-2951 CMB SVC SU3 24X7X4 Cisco 2951 w/3 GE Inquiry CON-NCFSO-2951 CMBSVC SUO3 24X7X4OS Cisco 2951 w/3 GE Inquiry CON-NCFT-2951 CMB SVC 8X5XNBD Cisco 2951 w/3 GE Inquiry CON-NCFW-2951 CMB SVC SW Cisco 2951 w/3 GE Inquiry CON-NCH2-2951 CMB SVC 24X7X2 NCH2 Cisco 2951 w/3 GE Inquiry CON-NCH2P-2951 CMBSV 24X7X2OS NCH2P Cisco 2951 w/3 GE Inquiry CON-NCH4P-2951 CMBSV 24X7X4OS NCH4P Cisco 2951 w/3 GE Inquiry CON-NCH4S-2951 CMB SV 8X5X4OS NCH4S Cisco 2951 w/3 GE Inquiry CON-NCHAU-2951 CMB SVC SAU NCHAU Cisco 2951 w/3 GE Inquiry CON-NCHCS-2951 CBSV 8X5XNBDOS NCHCS Cisco 2951 w/3 GE Inquiry CON-NCHE-2951 CMB SVC 8X5X4 NCHE Cisco 2951 w/3 GE Inquiry CON-NCHP-2951 CMB SVC 24X7X4 NCHP Cisco 2951 w/3 GE Inquiry CON-NCHT-2951 CMBSVC 8X5XNBD NCHT Cisco 2951 w/3 GE Inquiry CON-NCHW-2951 CMB SPT SVC SW NCHW Cisco 2951 w/3 GE Inquiry CON-NCJ2-2951 CMB SVC 24X7X2 NCJ2 Cisco 2951 w/3 GE Inquiry CON-NCJ2P-2951 CMBSV 24X7X2OS NCJ2P Cisco 2951 w/3 GE Inquiry CON-NCJ4S-2951 CMB SV 8X5X4OS NCJ4S Cisco 2951 w/3 GE Inquiry CON-NCJAU-2951 CMB SVC SAU NCJAU Cisco 2951 w/3 GE Inquiry CON-NCJCS-2951 CBSV 8X5XNBDOS NCJCS Cisco 2951 w/3 GE Inquiry CON-NCJE-2951 CMB SVC 8X5X4 NCJE Cisco 2951 w/3 GE Inquiry CON-NCJT-2951 CMBSVC 8X5XNBD NCJT Cisco 2951 w/3 GE Inquiry CON-NCJW-2951 CMB SPT SVC SW NCJW Cisco 2951 w/3 GE Inquiry CON-PREM-2951 SNTC-24X7X2OS Cisco 2951 w/3 GE Inquiry CON-S2P-2951 SNTC-24X7X2 Cisco 2951 w/3 GE Inquiry CON-SAU-2951 SW APP SUPP + UPGR Cisco 2951 w/3 GE Inquiry CON-SSC2P-2951 SOLN SUPP 24X7X2OS 2951w3GE4 EHWIC3 DSP2 SM256MB CF512MBDRAM Inquiry CON-SSCS-2951 SOLN SUPP 8X5XNBDOS 2951w3GE4 EHWIC3 DSP2 SM256MB CF512MBDRA Inquiry CON-SSS2P-2951 SOLN SUPP 24X7X2 2951w3GE4 EHWIC3 DSP2 SM256MB CF512MBDRAM.I Inquiry CON-SSSAU-2951 SOLN SUPP SAU Cisco 2951 w/3 GE Inquiry CON-SSSNE-2951 SOLN SUPP 8X5X4 2951w3GE4 EHWIC3 DSP2 SM256MB CF512MBDRAM.IP Inquiry CON-SSSNP-2951 2951 w3 GE4 EHWIC3 DSP2 SM256MB CF512MB DRAMIPB REFURBISHED Inquiry CON-SSSNT-2951 SOLN SUPP 8X5XNBD 2951w3GE4 EHWIC3 DSP2 SM256MB CF512MBDRAM. Inquiry CON-SU1-2951 IPS SVC. AR NBD Cisco 2951 w/3 GE Inquiry CON-SU2-2951 IPS SVC. AR 8X5X4 Cisco 2951 w/3 GE Inquiry CON-SU3-2951 IPS SVC. AR 24X7X4 Cisco 2951 w/3 GE Inquiry CON-SU4-2951 IPS SVC. AR 24X7X2 Cisco 2951 w/3 GE Inquiry CON-SUO1-2951 IPS SVC. ONSITE NBD Cisco 2951 w/3 GE Inquiry CON-SUO2-2951 IPS SVC.ONSITE 8X5X4 Cisco 2951 w/3 GE Inquiry CON-SUO3-2951 IPS SVC.ONSITE24X7X4 Cisco 2951 w/3 GE Inquiry CON-SUO4-2951 IPS SVC.ONSITE24X7X2 Cisco 2951 w/3 GE Inquiry CON-SW-2951 SMARTNET NO RMA Cisco 2951 w/3 GE Inquiry
I need for 2 units Cisco2951 for connecting to T3 network. Is these specifications can work: 2 GB RAM, with min IOS 15.0(1)M, NM-1t3/E3 module and 8 ports Gbps RJ-45?
YES, but you should buy a SM-NM-ADPTR Network Module Adapter for your NM-1t3/E3 module and more, one EHWIC-D-8ESG card to support 8 Gbps RJ-45 port.
CISCO2951-V/K9, the CME will be activated on the device CISCO2951-V/K9?
YES, buying a FL-CME-SRST-25 license (25 seat license).
On the Cisco ISR G2 routers with the SEC-K9 license, what tunnel count and performance throughput are available?
The SEC-K9 permanent licenses apply to the Cisco 1900, 2900, and 3900 ISR G2 platforms; these licenses limit all encrypted tunnel counts to 225 tunnels maximum for IP Security (IPsec), Secure Sockets Layer VPN (SSL VPN), a secure time-division multiplexing (TDM) gateway, and secure Cisco Unified Border Element (CUBE) and 1000 tunnels for Transport Layer Security (TLS) sessions. The SEC-K9 license limits encrypted throughput to less than or equal to 85-Mbps unidirectional traffic in or out of the ISR G2 router, with a bidirectional total of 170 Mbps. This requirement applies for the Cisco 1900, 2900, and 3900 ISR G2 platforms.
What is the exact HSEC-k9 license?
The HSEC-K9 license removes the curtailment enforced by the U.S. government export restrictions on the encrypted tunnel count and encrypted throughput. HSEC-K9 is available only on the Cisco 2921, Cisco 2951, Cisco 3925, Cisco 3945, Cisco 3925E, and Cisco 3945E. With the HSEC-K9 license, the ISRG2 router can go over the curtailment limit of 225 tunnels maximum for IP Security (IPsec) and encrypted throughput of 85-Mbps unidirectional traffic in or out of the ISR G2 router, with a bidirectional total of 170 Mbps. The Cisco 1941, 2901, and 2911 already have maximum encryption capacities within export limits.
What countries are classified license-free zones?
Countries belonging to the EU license-free zone include Australia, Austria, Belgium, Bulgaria, Canada, Cypress, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Japan, Latvia, Lithuania, Luxembourg, Malta, Netherlands, New Zealand, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey, United Kingdom, and the United States.
Are there any restrictions with the memory modules for the new platforms?
The Cisco 2900 Series Integrated Services Routers ship with higher default memory (both DRAM and Compact Flash) than today's integrated services routers. The Cisco 2951, 3925, 3925E, 3945, and 3945E routers have two modular dual-inline-memory-module (DIMM) slots for error-correcting code (ECC) double-data-rate 2 (DDR2) synchronous dynamic random access memory (SDRAM)-each slot capable of integrating 512 MB to 2 GB DIMM.
What is an enhanced high-speed WAN interface card (EHWIC)?
The EHWIC is an updated and enhanced version of the HWIC already available with existing integrated services routers. It offers greater speeds and higher port density than the current HWIC. EHWIC slots can support modules that provide both product-based Cisco Inline Power and PoE. EHWICs are available in two form factors: a singlewide form factor that takes up 1 slot and a doublewide form factor that takes up 2 slots. Note: You can combine two EHWIC slots into one bigger slot (EHWIC-D) by removing the center rail between two individual slots. The EHWIC slot is also backward-compatible with existing HWICs, voice interface cards (VICs), and WICs.
What is an internal service module (ISM)?
The ISM is the evolution of the AIM slot available on earlier integrated services routers. It provides additional capabilities such as increased throughput and integration with the MGF in the integrated services routers generation 2. Note that existing AIMs will not work in the new ISM slot.
What module will replace the Cisco AIM-VPN Module?
There is currently no plan for any VPN acceleration ISM module. The integrated services routers generation 2 include built-in hardware acceleration for encrypted traffic, and in effect they already include AIM-VPN functions as part of the default platform hardware.
Can I reuse my existing PVDM2 DSP modules in the Cisco 2900 Series routers?
Yes. You can install PVDM2s on the motherboard PVDM slots using the PVDM adaptor cards (PVDM2-ADPTR). You can also insert the high-density voice network modules (NM-HDV2s) with PVDM2s into the service-module slots of the Cisco 2900 and 3900 Series routers by using the network module-to-service module adapter card (SM-NM-ADAPTR).
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