Figure 124: Mpls L2Vpn Tunnel Over Lag Configuration Example; Table 67: Martini Circuit Scenarios Without Ethernet Raw Mode - Juniper BGP - CONFIGURATION GUIDE V 11.1.X Configuration Manual

PE devices and the configuration of the S-VLAN subinterface on CE-facing devices,
a device in the Maritni circuit can be either S-VLAN-aware or S-VLAN-unaware.
Figure 124 on page 555 shows a Martini circuit deployment in which the CE-side
devices on either side of the network send and receive Ethernet frames. The packets
reaching the CE-side devices can be S-VLAN-aware or not. The MPLS network might
also be S-VLAN-aware or not, which means that S-VLAN tags might or might not be
sent over the MPLS cloud.

Figure 124: MPLS L2VPN Tunnel over LAG Configuration Example

CE1 PE1
Ethernet traffic
The cases in which the MPLS network is S-VLAN-aware, but the CE-side device is not
S-VLAN-aware, are supported because the Ethernet pseudowire operates in tagged
mode. When the pseudowire is configured for raw mode, only two cases are
supported: whether the CE-side device is S-VLAN-aware or not aware.
Table 67 on page 555 describes the different scenarios in which the Martini circuit
shown in Figure 124 on page 555 can be deployed depending on whether the various
network segments are S-VLAN-aware or not

Table 67: Martini Circuit Scenarios Without Ethernet Raw Mode

Case
number Sending CE device (CE1)
1 S-VLAN-Aware
2 S-VLAN-Aware
3 S-VLAN-Aware
4 S-VLAN-Aware
5 S-VLAN-Unaware
6 S-VLAN-Unaware
Pseudowire
Martini tunneling
MPLS network
MPLS network
between local and
remote routers, PE1 Receiving CE
and PE2 Device (CE2)
S-VLAN-Aware S-VLAN-Aware
S-VLAN-Unaware S-VLAN-Aware
S-VLAN-Aware S-VLAN-Unaware
S-VLAN-Unaware S-VLAN-Unaware
S-VLAN-Aware S-VLAN-Unaware
S-VLAN-Unaware S-VLAN-Unaware
Ethernet Raw Mode Encapsulation for Martini Layer 2 Transport Examples
Chapter 7: Configuring Layer 2 Services over MPLS
PE2 CE2
Ethernet traffic
Whether scenario is
supported, when raw
mode is not configured
on the S-VLAN
interface
Supported
Unsupported
Unsupported
Unsupported
Unsupported
Supported
555