This chapter provides information on how to distribute Virtual Central Processing Unit (vCPU) cores and RAM resources for Cisco IOx applications on Cisco Catalyst IR1835 router.

Note	vCPU is also known as physical processor.

Distributing the available resources efficiently allows you to run multiple IOx applications simultaneously.

Use these templates to distribute the vCPU and RAM resources:

• Data Plane Heavy—Refers to a router configuration where majority of system resources are dedicated to the data plane, which is responsible for processing and forwarding network packets.

  Data Plane Heavy template maximizes throughput and ensures high-speed packet transfer, which is essential for network traffic demands. This ensures more processing power and memory to handle the increased load on the data plane, enhancing router's ability to move large volumes of data efficiently.

  Note	The Data Plane Heavy is the default template for vCPU and RAM distribution in the IR1835 router.

• Service Plane Heavy—Refers to a router configuration where majority of system resources are allocated to the service plane, which is responsible for providing network services such as Quality of Service (QoS), security functions, and load balancing.

  Service Plane Heavy template allocates additional vCPU and RAM to IOx applications. However, it reduces data throughput (bandwidth).

Note	Routers with 2 GB RAM and a single core vCPU (IOx resources) cannot run multiple IOx applications such as Unified Threat Defense and Cisco Cyber Vision.

From Cisco IOS XE Release 17.15.1, the IR1835 router with 8 GB RAM supports Data Plane Heavy and Service Plane Heavy distribution templates. You can allocate 3 GB RAM and two vCPU cores to IR1835 router for hosting Cisco IOx applications. We recommend the Service Plane Heavy template to allocate resources for hosting IOx applications.