# Tunnel Service Module (TSM) Module Combination

> Line module label | TUNNEL SERVICE
> I/O module label | No I/O module
> Number of I/O ports | Not applicable
> Software release | First supported: 3.0.2 Final supported: 8.0.x
> Description | 130 W Tunnel Service for IP tunnels and LNS termination
> Type | ASIC
> Capability | IP tunnels LNS termination Network Address Translation Stateful firewall
> Software features | See ERX Module Guide, Appendix A, Module Protocol Support for information about the layer 2 and layer 3 protocols and applications that this module combination supports.
> Model compatibility | ERX7xx models ERX14xx models ERX310 router
> SRP module compatibility | SRP-5G+ SRP-10G SRP-40G SRP-40G PLUS SRP-SE10G
> Module redundancy support | Multiple TSMs provide redundancy. See the Managing Tunnel-Service and IPSec-Service chapter of the JunosE Physical Layer Configuration Guide for Release 8.0.x and earlier.
> Cables and connectors | Not applicable
> LEDs | See ERX Module Guide, Appendix B, Module LEDs.
> Alarms, errors, and events | See Monitoring Tunnel-Service Interfaces in the Managing Tunnel-Service and IPSec-Service Interfaces chapter of the JunosE Physical Layer Configuration Guide for Release 8.0.x and earlier.