/mcpArchitectural Features
Benefits/Description
Cisco Network Interface
Modules (NIMs)3
● Up to three integrated NIM slots on the Cisco 4000 Family allow for flexible
configurations.
● Each NIM slot offers options of up to two 2Gbps connections. One towards the route
processor and one for direct module to module communication. The ISR 4221 has
only one 1Gbps connection to the Route Processor.
● NIMs support OIR.
● Special NIMs add support Solid-State Drives (SSDs) and Hard Disk Drives (HDDs)1.
Cisco Integrated Services Card
(ISC) slot on motherboard
● Integrated Services Card natively supports the new Cisco High-Density Packet Voice
Digital Signal Processor Modules (PVDM4s), providing greater-density rich-media
voice.
● Each Integrated Services Card slot connects to the system architecture through an
up-to 2-Gbps link.
● Future modules can be hosted on the Integrated Services Card slot, improving
system functions.
Flash memory support
● A single flash memory slot is available to support high-speed storage densities,
upgradable to up to 32 GB. The ISR4221 ships with a fixed quantity of 8GB of flash
memory.
● Two USB type A 2.0 ports provide capabilities for convenient storage1.
DRAM
● For the ISR 4400 Series, the default control-plane memory is 4 GB, upgradable to 16
GB to provide additional scalability for control-plane features. Data-plane memory is
2 GB, non-upgradable.
● For the ISR 4300 Series, the default memory is 4 GB, upgradable to 16 GB (only 8GB
for 4321) to provide additional scalability.
● The ISR 4200 Series comes in two versions: ISR4221- 4GB fixed DRAM and
ISR4221X – 8GB fixed DRAM.
NEBS (Network Equipment
Building System)
● The ISR 4461 is NEBS certified to maintain reliable operations in harsh and
demanding environments. A NEBS kit is orderable with dual 650W-DC reverse-
airflow power supplies and a reverse airflow fan assembly.
Managing your Cisco ISR 4000 Family ISRs
The Cisco network management applications listed at the top of Table 3 are standalone products that can
be purchased or downloaded to manage your Cisco network devices. The applications are built specifically
for the different operational phases; select those that best fit your needs. Those management capabilities
listed under the “Cisco IOS Software XE Embedded Management” heading are directly integrated into the
routers’ software operating system.