What protocol is used for trunking?
What protocol is used for trunking?
802.1Q and ISL are used to configure trunking on a port.
What does N 802.1Q mean under trunking?
It means it “negotiated” the trunking encapsulation type because it was not explicitly set in the config . If you actually put the “switchport trunk encapsulation dot1q” on the switchport , that “n” will disappear. When using desirable to set trunks it will negotiate on its own. 20 Helpful.
What is encapsulated in the 802.1Q protocol?
Defining the VLAN Encapsulation Format Specifies the subinterface the VLAN will use. Defines the encapsulation format as IEEE 802.1Q (dot1q), and specifies the VLAN identifier.
What is the function of the VLAN trunking protocol?
VLAN Trunking Protocol (VTP) is a Cisco proprietary protocol that propagates the definition of Virtual Local Area Networks (VLAN) on the whole local area network. To do this, VTP carries VLAN information to all the switches in a VTP domain. VTP advertisements can be sent over 802.1Q, and ISL trunks.
What is VLAN trunking?
VLAN trunking enables the movement of traffic to different parts of the network configured as a VLAN. A trunk is a point-to-point link between two network devices that carry more than one VLAN. With VLAN trunking, you can extend your configured VLAN across the entire network.
What is the significance of dot1q encapsulation?
802.1Q is the networking standard that defines virtual LANs (VLANs) on an Ethernet network. VLANs are logical networks that share a single physical connection using 802.1Q tagged frames. An Ethernet frame can contain an 802.1Q tag, with fields that specify VLAN membership and user priority.
What is the IEEE 802 1Q protocol?
802.1q is a VLAN tagging protocols developed by IEEE (Institute of Electrical and Electronics Engineers). Since it is an open standard, it can be used between switches from different vendors, so if you’re trunking between a Cisco switch and a different brand of switch, you’ve can use 802.1q for the trunk to work.
What are the different types of trunking protocols?
There are two trunking protocols: 802.1Q: This is the most common trunking protocol. It’s a standard and supported by many vendors. ISL: This is the Cisco trunking protocol. Not all switches support it.
What is Q-in-Q tunneling and how does it work?
802.1Q tunneling (aka Q-in-Q) is a technique often used by Metro Ethernet providers as a layer 2 VPN for customers. 802.1Q (or dot1q) tunneling is pretty simple…the provider will put an 802.1Q tag on all the frames that it receives from a customer with a unique VLAN tag.
What is Dot1q in Cisco switch?
802.1q (also known as dot1q) is an IEEE industry standard trunking protocol. Cisco switches supports both ISL (Inter Switch Link – Cisco propietory) and 802.1q.The IEEE 802.1Q standard defines the operation of VLAN Bridges that permit the definition, operation and administration of Virtual LAN topologies within a Bridged LAN infrastructure.
