Tunnel-Service Interface Platform Considerations

You can configure tunnel-service interfaces on the following E Series Broadband Services Routers:

This section describes the line modules, I/O modules, and I/O adapters (IOAs) that support tunnel-service interfaces.

For detailed information about the modules that support tunnel-service interfaces on the ERX14xx models, ERX7xx models, and the ERX310 router:

For detailed information about the modules that support tunnel-service interfaces on the E120 and E320 routers:

Supported Modules for Dedicated Tunnel-Server Ports

All E Series routers support dedicated tunnel-server ports; however, the supported modules depend on the type of E Series router that you have.

ERX7xx Models, ERX14xx Models, and the ERX310 Router

ERX7xx models, ERX14xx models, and the ERX310 router all support Service Modules (SMs) and IPsec Service Modules (ISMs).

Unlike other line modules, SMs and ISMs do not pair with corresponding I/O modules that provide ingress and egress ports. Instead, they receive data from and transmit data to other line modules with ingress and egress ports.

See JunosE Release Notes, Appendix A, System Maximums for information about the number of tunnels and sessions that each module supports.

E120 and E320 Routers

The E120 and E320 routers support the ES2-S1 Service IOA with ES2 4G line modules (LMs) and ES2 10G ADV LMs.

Unlike SMs and ISMs, you must install the ES2-S1 Service IOA with the ES2 4G LM and ES2 10G ADV LM to use dedicated tunnel-server ports. The ES2-S1 Service IOA does not have ingress and egress ports, but it conditions the ES2 4G LM and ES2 10G ADV LM to receive and transmit data to other line modules.

See JunosE Release Notes, Appendix A, System Maximums for information about the number of tunnels and sessions that the ES2-S1 Service IOA supports.

Supported Modules for Shared Tunnel-Server Ports

Most E Series routers support shared tunnel-server ports; however, the supported modules depend on the type of E Series router that you have.

See JunosE Release Notes, Appendix A, System Maximums for information about the number of tunnels and sessions that each module supports.

ERX14xx Models and the ERX310 Broadband Services Router

The ERX1440 and ERX310 routers support line modules on which you can use shared tunnel-server ports. The following module combinations offer tunnel services in addition to regular access services:

E120 and E320 Routers

The E120 and E320 routers support shared tunnel-server ports on the following line module and IOA combinations:

Numbering Scheme

When configuring or managing tunnel-server ports, you must know the numbering scheme for identifying the physical location of the port in the E Series router. The numbering scheme depends on the type of E Series router that you have.

ERX7xx Models, ERX14xx Models, and the ERX310 Router

Use the slot/port format to identify dedicated and shared tunnel-server ports.

For information about installing tunnel-server modules in ERX routers, see the Installing Modules chapter in the ERX Hardware Guide.

E120 and E320 Routers

Use the slot/adapter/port format to identify dedicated and shared tunnel-server ports.

For information about installing tunnel-server modules in the E120 and E320 routers, see the Installing Modules chapter in the E120 and E320 Hardware Guide.

Interface Specifier

The configuration task examples in this chapter use the format for ERX7xx models, ERX14xx models, and the ERX310 router to specify a tunnel-server port. (The format is described in Numbering Scheme .)

For example, the following command specifies a dedicated tunnel-server port on port 0 of a tunnel-server module in slot 4.

host1(config)#tunnel-server 4/0

When you configure a tunnel-server port on an E120 or E320 router, you must include the adapter identifier as part of the interface specifier. For example, the following command specifies a dedicated tunnel-server port on port 0 of an ES2-S1 Service IOA installed in both the upper and lower bays of slot 3. (When a full-height IOA is installed in the E120 or E320 router, it is identified in the software by the upper adapter bay 0.)

host1(config)#tunnel-server 3/0/0

For more information about interface types and specifiers on E Series models, see Interface Types and Specifiers in JunosE Command Reference Guide.

Supported Applications for Dedicated and Shared Tunnel-Server Ports

Dedicated and shared tunnel-server ports provide support for some or all of the following applications and services, depending on the capabilities of the tunnel-server module on which the port resides:

For a list of applications and services that dedicated and shared tunnel-server modules support on ERX7xx models, ERX14xx models, and the ERX310 outer, see ERX Module Guide, Appendix A, Module Protocol Support.

For a list of applications and services that dedicated tunnel-server modules support on the E120 and E320 routers, see E120 and E320 Module Guide, Appendix A, IOA Protocol Support.

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