Configuring Q-In-Q Tunneling On Acx Series - Juniper ACX1000 Configuration Manual

Related
Documentation

Configuring Q-in-Q Tunneling on ACX Series

Copyright © 2017, Juniper Networks, Inc.
customer traffic within a single site or to enable customer traffic flows across geographic
locations.
Q-in-Q tunneling adds a service VLAN tag before the customer's 802.1Q VLAN tags. The
Juniper Networks Junos operating system implementation of Q-in-Q tunneling supports
the IEEE 802.1ad standard.
In Q-in-Q tunneling, as a packet travels from a customer VLAN (C-VLAN) to a service
provider's VLAN (S-VLAN), another 802.1Q tag for the appropriate S-VLAN is added
before the C-VLAN tag. The C-VLAN tag remains and is transmitted through the network.
As the packet exits from the S-VLAN space, in the downstream direction, the S-VLAN
802.1Q tag is removed.
In ACX Series routers, you can configure Q-in-Q tunneling by explicitly configuring an
input VLAN map with push
You can configure Q-in-Q tunneling on aggregated Ethernet interface by configuring
input and output VLAN map.
Layer 2 Bridge Domains on ACX Series Overview on page 755
Layer 2 Learning and Forwarding for Bridge Domains Overview on page 759
Configuring a Bridge Domain on ACX Series Routers on page 760
Configuring Q-in-Q Tunneling on ACX Series on page 771
Configuring VLAN Identifiers for Bridge Domains in ACX Series on page 764
Disabling MAC Learning for Bridge Domains on ACX Series on page 765
Configuring Static MAC Addresses for Logical Interfaces in a Bridge Domain in ACX
Series on page 766
Configuring the Size of the MAC Address Table for Bridge Domains in ACX Series on
page 766
To configure Q-in-Q tunneling, you need to configure the logical interface connected to
the customer network (user-to-network interfaces (UNI)) and the logical interface
connected to the service provider network (network-to-network interface (NNI)).
The following is an example to configure a logical interface connected to a customer
network:
[edit]
interface ge-1/0/1 {
flxible-vlan-tagging;
encapsulation flexible-ethernet-services;
unit 0 {
encapsulation vlan-bridge;
vlan-id-list 10-20;
input-vlan-map {
push;
Chapter 24: Configuring Layer 2 Bridging and Q-in-Q Tunneling
function on customer facing interfaces in a bridge domain.
771