Module Requirements; Erx7Xx Models, Erx14Xx Models, And The Erx310 Router; E120 Router And E320 Router - Juniper JUNOSE 11.0.X IP SERVICES Configuration Manual

JUNOSe 11.0.x IP Services Configuration Guide

Module Requirements

The supported modules for creating IP tunnels depends on the type of E Series router
that you have.

ERX7xx Models, ERX14xx Models, and the ERX310 Router

To create dynamic IP tunnels on an ERX7xx model, ERX14xx model, or an ERX310
router, you must install a Service line module (SM) or a module that supports the use
of shared tunnel-server ports. For information about installing modules in the ERX
routers, see the ERX Hardware Guide.
SMs provide dedicated tunnel-server ports that are always configured on the module.
Unlike other line modules, SMs do not pair with corresponding I/O modules that
contain ingress and egress ports. Instead, they receive data from and transmit data
to other line modules with access to ingress and egress ports on their own associated
I/O modules. However, you must assign interfaces on other line modules or loopback
interfaces to act as source endpoints for the tunnel.
You can also create IP tunnels on router modules that support shared tunnel-server
ports. You can configure (provision) a shared tunnel-server port to use a portion of
the module's bandwidth to provide tunnel services. For a list of the modules that
support shared tunnel-server ports, see the ERX Module Guide.
To configure IPSec transport mode in the GRE or DVMRP destination profile, you
must install an IPSec Service Module (ISM).
For information about configuring tunnel services on dedicated and shared
tunnel-server ports, see Managing Tunnel Service and IPSec Service Interfaces in JUNOSe
Physical Layer Configuration Guide.
All line modules forward traffic to IP tunnels. For information about which line
modules accept traffic for IP tunnels, see the ERX Module Guide.

E120 Router and E320 Router

To create dynamic IP tunnels on an E120 router or an E320 router, you must install
an ES2 4G line module (LM) with an ES2-S1 Service I/O adapter (IOA), or an IOA that
supports the use of shared tunnel-server ports. For information about installing
modules in these routers, see the E120 and E320 Hardware Guide.
The ES2 4G LM and ES2-S1 Service IOA combination provides a dedicated
tunnel-server port that are always configured on the IOA. Unlike SMs, the ES2 4G
LM requires the ES2-S1 Service IOA to condition it to receive and transmit data to
other line modules. The ES2-S1 Service IOA also does not have ingress or egress
ports.
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Platform Considerations
See E120 and E320 Module Guide, Table 1, Modules and IOAs for detailed module
specifications.
See E120 and E320 Module Guide, Appendix A, IOA Protocol Support for information
about the modules that support IP tunnels.