Configuring S-Vlan Tunnels For Layer 2 Services Over Mpls; Advantages - Juniper JUNOSE SOFTWARE 11.0.X - LINK LAYER CONFIGURATION GUIDE 4-1-2010 Configuration Manual

JUNOSe 11.0.x Link Layer Configuration Guide
svlan id

Configuring S-VLAN Tunnels for Layer 2 Services over MPLS

When you configure Ethernet layer 2 services over MPLS, you can create a special
type of S-VLAN called an S-VLAN tunnel that uses a single interface to tunnel traffic
from multiple VLANs across an MPLS network. The S-VLAN tunnel enables multiple
VLANs, each configured with a unique VLAN ID tag, to share a common S-VLAN ID
tag when they traverse an MPLS network.

Advantages

Using S-VLAN tunnels provides an easier and faster way to configure Ethernet layer
2 services over MPLS than using standard S-VLANs. For example, consider the network
configuration shown in Figure 19 on page 185.
184
Configuring S-VLAN Tunnels for Layer 2 Services over MPLS
9100 Specifies Ethertype value 0x9100, which is the default
Use an Ethertype value that matches the Ethertype value set on the customer
premises equipment (CPE) to which your router connects.
Example
host1(config-if)#svlan ethertype 8100
Use the no version to restore the default value, 9100.
See svlan ethertype.
Use to assign S-VLAN IDs and VLAN IDs to VLAN subinterfaces.
Use S-VLAN ID and VLAN ID numbers that are in the range 0–4095 and that are
unique within the Ethernet interface.
Use the mac-address keyword to specify a unique MAC address for the VLAN
subinterface. When you do not specify a unique MAC address, the VLAN uses
the MAC address of the Ethernet interface.
Examples
host1(config-if)#svlan id 4 255
host1(config-if)#svlan id 4 255 mac-address 0090.1a01.1234
Issue the svlan id command before any upper bindings are made, such as IP or
PPPoE.
There is no no version.
See svlan id.