What Is 802.1Q-in-802.1Q (QinQ)? - Huawei - Huawei Wireless Network ...
The technique specified by the standard is known informally as stacked VLANs or QinQ. The original 802.1Q specification allows a single virtual local area network (VLAN) header to be inserted into an Ethernet frame.
802.1Q Tunneling (Q-in-Q) Configuration - NetworkLessons.com
QinQ Overview. 802.1Q-in-802.1Q (QinQ) expands VLAN space by adding an additional 802.1Q tag to 802.1Q tagged packets. It allows services in a private VLAN to be transparently transmitted over a public network. Basic QinQ, also called QinQ tunneling, is performed on interfaces.
IEEE 802.1ad - Wikipedia
Learn the basic information and a summary of the frame fields for Inter-Switch Link (ISL) and IEEE 802.1Q encapsulation, two types of encapsulation that are used to carry data from multiple VLANs over trunk links. See the frame size, field descriptions, and requirements for ISL and 802.1Q trunking on Cisco switches.
IEEE 802.1Q Tunneling (QinQ) and L2PT on L2 - Cisco
QinQ, or IEEE 802.1ad, is a means of nesting VLAN tagged traffic inside of packets that are already tagged. Learn how to configure QinQ interfaces, groups, tags, and rules on pfSense software. See examples and screenshots of QinQ interface settings and configuration.
Q-in-Q Configuration - Network Direction
QinQ is an IEEE standard formally known an 802.1ad. It has been widely supported by enterprise switches and routers for some time. QinQ frames look very much like a normal VLAN tagged Ethernet frame. The only difference is the presence of a second VLAN tag. This means QinQ only adds 4 extra bytes to a frame.
Introduction to QinQ - Hewlett Packard Enterprise
Q-in-Q VLAN tunnels enable a service provider to segregate the traffic of different customers in their infrastructure, while still giving them a full range of VLANs for their internal use. Learn how to configure Q-in-Q tunnels and Layer 2 protocol tunneling on Cisco NX-OS devices, including licensing requirements, guidelines and limitations, and configuration examples.
Typical QinQ Configuration - S300, S500, S2700, S3700, S5700 ... - Huawei
QinQ is a flexible, easy-to-implement Layer 2 VPN technology based on IEEE 802.1Q. It enables the edge switch on a service provider network to insert an outer VLAN tag in the Ethernet frames from customer networks, so that the Ethernet frames travel across the service provider network with double VLAN tags. QinQ configuration is explained in this document.
How QinQ works - Hewlett Packard Enterprise
QinQ（802.1Q-in-802.1Q），也叫做VLAN Stacking或Double VLAN，由IEEE 802.1ad标准定义，是一项扩展VLAN空间的技术，通过在802.1Q标签报文的基础上再增加一层802.1Q的Tag来达到扩展VLAN空间的目的。一般应用在骨干网中，通过将用户私网VLAN Tag封装在公网VLAN Tag中，使报文带着两 ...
QinQ | FortiGate / FortiOS 6.4.5 | Fortinet Document Library
QinQ or QnQ is short for 802.1Q-in-802.1Q. The original 802.1Q specification allows a single VLAN header to be inserted into an Ethernet frame. QinQ enables service providers to use a single VLAN to support customers who have multiple VLANs, while preserving customer VLAN IDs and keeping traffic in different customer VLANs segregated.
QinQ - Aruba
Learn the differences and similarities between QinQ, VLAN and VXLAN, three technologies to segment network into broadcast domains. QinQ can extend VLAN IDs up to 4096×4096, VXLAN can provide layer 2 overlay networks on top of layer 3, and VLAN is simple and easy to configure.