# Managing Modules

This chapter describes how to manage line modules, switch route processor (SRP) modules, switch fabric modules (SFMs), I/O modules, and I/O adapters (IOAs) in E Series routers.

This chapter contains the following sections:

- Overview
- Platform Considerations
- Disabling and Reenabling Line Modules, SRP Modules, and SFMs
- Disabling and Reenabling IOAs
- Removing an SRP Module
- Replacing Line Modules on ERX Routers, the E120 Router, and the E320 Router
- Replacing IOAs on the E120 Router and the E320 Router
- Software Compatibility
- Configuring Performance Rate of Line Modules on ERX7xx Models and the ERX1410 Router
- Managing Flash Cards on SRP Modules
- Updating the Router with JunosE Hotfix Files
- Managing the Ethernet Port on the SRP Module
- Enabling Warm Restart Diagnostics on Modules
- Ignoring Diagnostic Test Failures
- Monitoring Modules