File System Synchronization Mode

File system synchronization is the default behavior mode for E-series routers that contain redundant SRPs. Available only to SRP modules, this mode has been available since the 2.x release. In this mode:

• Files and data (for example, configuration files and releases) in nonvolatile storage (NVS) remain synchronized between the primary and standby SRP modules.
• SRP modules will reload all line modules and restart from saved configuration files.
• If the active SRP module switches over to the standby SRP, the router cold-restarts as follows:
  • All line modules are reloaded.
  • User connections are lost, and forwarding through the chassis stops until the router SRP module recovers.
  • The standby SRP module boots from the last known good configuration from NVS.

For additional information about the default SRP functionality, see Managing Modules.

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