What is a trunk link between two switches?
A trunk is a point-to-point link between one or more Ethernet switch interfaces and another networking device such as a router or a switch. Ethernet trunks carry the traffic of multiple VLANs over a single link, and you can extend the VLANs across an entire network.
What is an 802.1 Q trunk?
VLAN Trunking (802.1Q) allows physical network interfaces in a computing environment to be shared, or multi-homed. Network devices on the network then only interact with packets that have the correct tags. This allows multiple different logical networks to run on the same cable and switch infrastructure.
What is ISL used for?
ISL is used in Cisco switches for VLAN switching purpose. Cisco has also introduced facility to carry Token Ring, FDDI, and ATM frames over Ethernet ISL. ISL Trunking can be used to improve the performance, manageability, and reliability.
What is the purpose of 802.1 Q?
IEEE 802.1Q, often referred to as Dot1q, is the networking standard that supports virtual LANs (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 ISL port?
An ISL is a connection between two switches through an Expansion Port (E_Port). ISL Trunking simplifies network design and reduces the cost of storage management by optimizing bandwidth utilization and enabling load balancing of traffic at the frame-level.
What is ISL interface?
In the VSX solution topology, an Inter-Switch Link (ISL) is a layer 2 interface between two VSX peer switches. Each VSX switch must be configured with an ISL link connected to its peer VSX switch.
What is switch trunking?
A trunk port is a specific type of port on a network switch that allows data to flow across a network node for multiple virtual local area networks or VLANs. The typical VLAN network is made up of virtualized network nodes.
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