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200-150 · Question #197

Which description of a FLOGI database I ?

The correct answer is B. it indicates the devices that connect directly to the switch. The FLOGI database records all devices that have performed a Fabric Login directly to the local switch, identifying directly attached N ports and NL ports.

Cisco Data Center Storage

Question

Which description of a FLOGI database I ?

Options

  • AIt displays the status of the various VSANs in the fabric.
  • Bit indicates the devices that connect directly to the switch.
  • CIt shows the switch of the zones on the Local switch.
  • DIt travels VSAN s in the network.

How the community answered

(33 responses)
  • A
    3% (1)
  • B
    88% (29)
  • C
    6% (2)
  • D
    3% (1)

Why each option

The FLOGI database records all devices that have performed a Fabric Login directly to the local switch, identifying directly attached N ports and NL ports.

AIt displays the status of the various VSANs in the fabric.

VSAN status and operational state information is displayed by the 'show vsan' command, not by the FLOGI database, which is limited to device login records.

Bit indicates the devices that connect directly to the switch.Correct

When an end device such as an HBA or storage port connects to a Fibre Channel switch, it performs a FLOGI to register with the fabric and receive a Fibre Channel ID (FCID). The FLOGI database on each switch maintains a record of all N ports and NL ports that are directly attached and have completed this login process, making it specific to locally connected devices only.

CIt shows the switch of the zones on the Local switch.

Zone configuration and port membership on a local switch is viewed with the 'show zone' command, which is separate from the FLOGI database.

DIt travels VSAN s in the network.

The FLOGI database is local to each individual switch and does not traverse VSANs; fabric-wide device information is tracked in the Fibre Channel Name Server (FCNS) database instead.

Concept tested: Fibre Channel FLOGI database and fabric login process

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

Topics

#FLOGI#fabric login#device discovery#Fibre Channel

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