What is trunk mode in switches?
Trunk ports are generally used in the switch to switch communication or switch to Router (Router on a stick). Trunks carry multiple Vlans across devices and maintain VLAN tags in Ethernet frames for receiving directly connected device differentiates between different Vlans.
What is encapsulation dot1q command?
One command (encapsulation) enables trunking and defines the VLAN whose frames are considered to be coming in and out of the subinterface. The ip address command works the same way it does on any other interface.
What is encapsulation dot1q Cisco?
IEEE 802.1Q encapsulation is configurable on Ethernet and EtherChannel interfaces. IEEE 802.1Q is a standard protocol for interconnecting multiple switches and routers and for defining VLAN topologies. Use the encapsulation dot1q command in subinterface range configuration mode to apply a VLAN ID to the subinterface.
What is encapsulation DOT1Q command?
What is VLAN DOT1Q tag native?
The global command “vlan dot1Q tag native” is a common command found on ciscos devices which makes the native vlan on trunk ports require a tag or its dropped (essentially drops all untagged traffic on trunk ports).
What is the purpose of 802.1Q tagging?
The 802.1Q tagging protocol allows the Ethernet frame size to increase by four bytes to a range of 68 to 1522 bytes. This size increase is due to the insertion of a four-byte VLAN tag into the frame. The tags, which include a VLAN Identifier (VID), are attached to each Ethernet frame by MAC address.
What is encapsulation dot1q in Cisco?
What is dot1q protocol?
IEEE 802.1Q, often referred to as Dot1q, is the networking standard that supports virtual local area networking (VLANs) on an IEEE 802.3 Ethernet network. The standard defines a system of VLAN tagging for Ethernet frames and the accompanying procedures to be used by bridges and switches in handling such frames.
What is an ISL trunk?
Inter-Switch Link (ISL) Trunking is optional software requiring a license that allows you to create trunking groups of ISLs between adjacent switches.
What is encapsulation dot1q router?
Router(config-subif)# encapsulation dot1q 1. Enables IEEE 802.1Q encapsulation of traffic on a specified subinterface in VLANs, and defaults the associated VLAN as a native VLAN. Step 3. Router(config-subif)# bridge-group bridge-group. Assigns each network interface to a bridge group.