200-150 · Question #194
Which Fibre Channel interface port mode is used to connect multiple switches together?
The correct answer is B. E port. Fibre Channel E ports create Inter-Switch Links (ISLs) to connect multiple FC switches into a larger fabric.
Question
Which Fibre Channel interface port mode is used to connect multiple switches together?
Options
- AN port
- BE port
- CF port
- DNL port
How the community answered
(40 responses)- B93% (37)
- C5% (2)
- D3% (1)
Why each option
Fibre Channel E ports create Inter-Switch Links (ISLs) to connect multiple FC switches into a larger fabric.
N ports (Node ports) are used by end devices such as HBAs or storage targets to connect into the fabric, not for switch-to-switch links.
E ports (Expansion ports) are the Fibre Channel port type specifically designed to connect two FC switches together, forming an Inter-Switch Link (ISL). This allows multiple switches to be interconnected into a larger fabric, enabling devices on different switches to communicate within the same VSAN.
F ports (Fabric ports) are switch-side ports that accept connections from N port end devices such as hosts and storage, not from other switches.
NL ports (Node Loop ports) are used by end devices participating in an arbitrated loop topology, not for connecting switches together.
Concept tested: Fibre Channel port types and ISL connectivity
Source: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/mds9000/sw/8_x/config/san_switching/cisco_mds9000_san_switching_config_guide_8x/configuring_interfaces.html
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