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Islshow – Dell POWEREDGE M1000E User Manual

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Fabric OS Command Reference

53-1001764-02

islShow

2

islShow

Displays interswitch link (ISL) information.

Synopsis

islshow

Description

Use this command to display the current connections and status of the interswitch link (ISL) for
each port on a switch. The command output includes the following information:

Node world wide name (WWN)

Domain ID

Switch name

ISL connection speed, if applicable

Bandwidth

Trunking enabled, if applicable

QoS enabled, if applicable

When issued on a switch that is part of a logical fabric configuration, the islShow command
displays logical interswitch links (LISLs) along with regular ISLs. However, speed (sp) displays N/A
for logical ports. The bandwidth (bw) displayed is the sum of the bandwidth of all extended ISLs
(XISLs) that form the LISL. A shared ISL (XISL) connects the base switches and is shared by
different logical fabrics. It allows devices to communicate with each other within the logical fabric.

Connection speed is not applicable to LE_Ports or VE_Ports. For these port types, speed displays as
“sp:-------”.

Note

The execution of this command is subject to Virtual Fabric or Admin Domain restrictions that may
be in place. Refer to chapter 1, “Using Fabric OS commands” and Appendix A, “Command
Availability”
for details.

Operands

none

Examples

When you issue islshow in a base fabric, the output displays as follows:

switch:user>

islshow

1: 2->300 10:00:00:05:1e:43:00:00 100 DCX sp: 8.000G bw: 32.000G TRUNK QOS

2: 8-> 3 10:00:00:05:1e:41:8a:d5 30 B5300 sp: 4.000G bw: 16.000G TRUNK QOS

3: 19-> 10 10:00:00:05:1e:41:43:ac 50 B300 sp: 8.000G bw: 64.000G TRUNK

When you issue islshow in a logical fabric, the output displays as follows:

switch:user>

islshow

1: 33-> 29 10:00:00:60:69:80:4f:84 3 B3200 sp: 2.000G bw: 4.000G TRUNK

2: 39-> 7 10:00:00:60:69:45:68:04 4 B3850 sp: 2.000G bw: 8.000G TRUNK

3: 41-> (incompatible)

4: 47-> (incompatible)

5: 95-> 0 10:00:00:05:1e:01:0b:4a 15 B200E sp: 2.000G bw: 2.000G TRUNK

6:162->160 10:00:00:60:69:e2:09:fa 5 B24000 sp:-------- bw: 0.001G

7:384-> 16 10:00:00:05:1e:37:02:73 39 DCX sp:-------- bw: 10.000G

8:385-> 16 10:00:00:05:1e:37:02:73 43 B5300 sp:--------

bw: 11.000G

See Also

switchShow, trunkShow