Juniper JUNOS 10.1 - CONFIGURATION GUIDE 1-2010 Configuration Manual page 1173

—For interfaces that carry IPv4 traffic, use Ethernet TCC encapsulation
ethernet-tcc
on interfaces that must accept packets carrying standard TPID values. For 8-port,
12-port, and 48-port Fast Ethernet PICs, TCC is not supported.
ethernet-vpls —Use Ethernet VPLS encapsulation on Ethernet interfaces that have
VPLS enabled and that must accept packets carrying standard TPID values.
extended-frame-relay-ccc —Use Frame Relay encapsulation on CCC circuits. This
encapsulation type allows you to dedicate DLCIs 1 through 1022 to CCC.
—Use Frame Relay encapsulation on TCC circuits to connect
extended-frame-relay-tcc
unlike media. This encapsulation type allows you to dedicate DLCIs 1 through
1022 to TCC.
extended-vlan-bridge —Use extended VLAN bridge encapsulation on Ethernet interfaces
that have IEEE 802.1Q VLAN tagging and bridging enabled and that must accept
packets carrying TPID 0x8100 or a user-defined TPID.
extended-vlan-ccc —Use extended VLAN encapsulation on CCC circuits with Gigabit
Ethernet and 4-port Fast Ethernet interfaces that must accept packets carrying
802.1Q values. For 8-port, 12-port, and 48-port Fast Ethernet PICs, extended
VLAN CCC is not supported. For 4-port Gigabit Ethernet PICs, extended VLAN
CCC is not supported.
—For interfaces that carry IPv4 traffic, use extended VLAN
extended-vlan-tcc
encapsulation on TCC circuits with Gigabit Ethernet interfaces on which you
want to use 802.1Q tagging. For 4-port Gigabit Ethernet PICs, extended VLAN
TCC is not supported.
extended-vlan-vpls —Use extended VLAN VPLS encapsulation on Ethernet interfaces
that have VLAN 802.1Q tagging and VPLS enabled and that must accept packets
carrying TPIDs 0x8100, 0x9100, and 0x9901.
NOTE: The built-in Gigabit Ethernet PIC on an M7i router does not support extended
VLAN VPLS encapsulation.
—For Gigabit Ethernet IQ interfaces and Gigabit Ethernet
flexible-ethernet-services
PICs with small form-factor pluggable transceivers (SFPs) (except the 10-port
Gigabit Ethernet PIC and the built-in Gigabit Ethernet port on the M7i router),
use flexible Ethernet services encapsulation when you want to configure multiple
per-unit Ethernet encapsulations. Aggregated Ethernet bundles can use this
encapsulation type. This encapsulation type allows you to configure any
combination of route, TCC, CCC, Layer 2 virtual private networks (VPNs), and
VPLS encapsulations on a single physical port. If you configure flexible Ethernet
services encapsulation on the physical interface, VLAN IDs from 1 through 511
are no longer reserved for normal VLANs.
Chapter 62: Summary of Interface Configuration Statements
encapsulation (Physical Interface)
1103