ISR4451-X-VSEC/K9 - Cisco ISR 4000 Routers

Product Code

ISR4451-X-VSEC/K9

Bundle

 w/SEC and voice licenses

Aggregate Throughput

1 Gbps to 2Gbps

Total onboard WAN or LAN 10/100/1000 ports

4

RJ-45-based ports

4

SFP-based ports

4

Enhanced service-module (SM-X) slot

2

NIM (Network Interface Modules) slots

3

Onboard ISC slot

1

DDRM (data plane)

2 GB (default) / 2 GB (maximum)

DDRM (control/services plane)

4 GB (default) / 16 GB (maximum)

Flash Memory

8 GB (default) / 32 GB (maximum)

Power-supply options

Internal: AC, DC (roadmap) and PoE

Rack height

2 RU

Dimensions (H x W x D)

88.9 x 438.15 x 469.9 mm

Authentication and
Encryption Features

• Media encryption of voice RTP streams using SRTP

• Exchange of RTP Control Protocol (RTCP) information using secure RTCP

• SRTP to RTP fallback for calls between secure and insecure endpoints

• Secure calls supported in Cisco Unified Survivable Remote Site Telephony (SRST) mode during WAN failover

• Compressed RTP (CRTP) supported with media encrypted calls using SRTP

Authentication and
Encryption Algorithm

• Supports AES-128 encryption algorithm

• Supports the HMAC secure hash authentication algorithm (SHA 1)

Signaling Authentication and Encryption Features

• Gateway to Cisco Unified Communications Manager signaling and encryption uses IPSec for Media Gateway Control Protocol (MGCP), H.323 and SIP gateways

• IP phone to Cisco Unified Survivable Remote Site Telephony router signaling and encryption uses TLS 
 (Transport Layer Security)

Protocol Support

• MGCP 0.1 (supports MGCP gateways with Cisco Unified Communications Manager)

• H.323 (supported on H.323 gateways and CUBE; Cisco Unified Communications Manager interoperability is optional)

• Session Initiation Protocol (SIP)

• SCCP (Cisco Unified IP Phone) in SRST mode

Module Support

• Any module that has PVDM2, PVDM3 and/or built-in DSP

Codec Support

• G.711, G.729A, and G.729