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# VLAN and S-VLAN Platform Considerations

You can configure VLAN and S-VLAN subinterfaces on the following E Series Broadband Services Routers:

- E120 router
- E320 router
- ERX1440 router
- ERX1410 router
- ERX710 router
- ERX705 router
- ERX310 router

## Module Requirements

For information about the modules supported on E Series routers:

- See the ERX Module Guide for modules supported on ERX7xx models, ERX14xx models, and the ERX310 router.
- See the E120 and E320 Module Guide for modules supported on the E120 and E320 routers.

## Interface Specifiers

The configuration task examples in this chapter use the format for ERX7xx models, ERX14xx models, and the ERX310 router to specify a VLAN or S-VLAN subinterface.

For ERX7xx models, ERX14xx models, and ERX310 router, use the slot/port[.subinterface ] format. For example, the following command specifies a VLAN subinterface configured on port 0 of an I/O module in slot 4.

`

host1(config)#interface fastEthernet 4/0.1

`

For E120 and E320 routers, use the slot/adapter/port[.subinterface ] format, which includes an identifier for the bay in which the I/O adapter (IOA) resides. For example, the following command specifies a VLAN subinterface configured on port 0 of the IOA installed in the upper adapter bay of slot 3.

`

host1(config)#interface gigabitEthernet 3/0/0.1

`

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

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