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Show fabric isl – Brocade Network OS Command Reference v4.1.0 User Manual

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Network OS Command Reference

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show fabric isl

2

show fabric isl

Displays Inter-Switch Link (ISL) information in the fabric.

Synopsis

show fabric isl [rbridge-id | all]

Operands

rbridge-id

Specifies the RBridge ID. This is not valid in standalone mode.

all

Specifies all switches in the fabric.

Defaults

None

Command Modes

Privileged EXEC mode

Description

Use this command to display ISL information in the fabric. If the ISL is segmented then
“(segmented - incompatible)” displays in the output.

The command output includes the following information:

Rbridge-id

RBridge-id of the switch. Valid values range from 1 through 239.

#ISLs

Number of ISLs connected.

Src Index

Source index of the local RBridge.

Src Interface

Source interface of the local RBridge in the format
“local-rbridge-id/slot/port”. If the ISL is not up, then “?/?/?” displays for a
Te interface and “-/-/-” displays for an Fi interface.

Nbr Index

Neighbor Index of the ISL connected from local port. If the link is
segmented and the NBR rbridge details are unavailable, “?” displays in this
field.

Nbr Interface

Neighbor interface of the ISL connected from the local RBridge in the
format “nbr-rbridge-id/slot/port”. If the ISL is not completely up, this field
will be displayed as “?/?/?”.

Nbr-WWN

Neighbor WWN of the switch. If the ISL is segmented and the neighbor
RBridge details are not available, then “??:??:??:??:??:??:??:??” displays in
this field.

BW

Bandwidth of the traffic.

Trunk

Displays “Yes” if trunk is enabled in the ISL.

Nbr-Name

Neighbor switch name.

Usage Guidelines

This command is not available in standalone mode.

If this command is executed without operands, the output displays the ISL information of the local
RBridge.

The show fabric family of commands displays neighbor and local port information when connected
to a down-level RBridge.

For segmented links, “(segmented - incompatible)” is displayed to indicate that the ISL is
segmented. The Nbr Index, Nbr Interface, and Nbr-WWN files show question marks if the
information is not known.