Guidelines For Configuring Vlan Id List-Bundled Logical Interfaces That Connect Cccs; Guidelines For Configuring Physical Link-Layer Encapsulation To Support Cccs; Guidelines For Configuring Logical Link-Layer Encapsulation To Support Cccs - Juniper JUNOS 10.1 - CONFIGURATION GUIDE 1-2010 Configuration Manual

JUNOS 10.1 Network Interfaces Configuration Guide
Guidelines for Configuring VLAN ID List-Bundled Logical Interfaces That Connect
CCCs
For MX Series routers, you can bind a list of VLAN IDs to a logical interface, configure
a Layer 2 VPN routing instance or Layer 2 circuit on the logical interface, and then
use the logical interface to configure a circuit cross-connect (CCC) to another Layer
2 VPN routing instance or Layer 2 circuit.
A CCC allows you to configure transparent connections between two circuits so that
packets from the source circuit are delivered to the destination circuit with, at most,
the Layer 2 address being changed. You configure a CCC by connecting circuit
interfaces of the same type. For more information, see "Circuit and Translational
Cross-Connects Overview" on page 229.
NOTE: The JUNOS Software supports binding of Ethernet logical interfaces to lists of
VLAN IDs on MX Series routers only. For all other routers, you can bind an Ethernet
logical interface to only a single VLAN ID or to a single range of VLAN IDs.
The following configuration guidelines apply to bundling lists of VLAN IDs to Ethernet
logical interfaces used to configure CCCs:

Guidelines for Configuring Physical Link-Layer Encapsulation to Support CCCs

To enable a physical interface to support VLAN-bundled logical interfaces that you
will use to configure a CCC, you must specify one of the following physical link-layer
encapsulation types as the value of the
interface-name]
For more information about configuring the encapsulation on a physical interface,
see "Configuring Interface Encapsulation on Physical Interfaces" on page 118.

Guidelines for Configuring Logical Link-Layer Encapsulation to Support CCCs

For VLAN-bundled logical interfaces that you use to configure a CCC, specific logical
link-layer encapsulation types are used inside the circuits themselves.
632

Guidelines for Configuring VLAN ID List-Bundled Logical Interfaces That Connect CCCs

Guidelines for Configuring Physical Link-Layer Encapsulation to Support
CCCs on page 632
Guidelines for Configuring Logical Link-Layer Encapsulation to Support
CCCs on page 632
hierarchy level:
[edit interfaces interface-name]
encapsulation (extended-vlan-ccc | flexible-ethernet-services);
extended-vlan-ccc —For Ethernet interfaces with standard TPID tagging.
flexible-ethernet-services
you want to configure multiple per-unit Ethernet encapsulations.
statement at the
encapsulation
—For supported Gigabit Ethernet interfaces for which
[edit interfaces