checklinks Command - Sun Datacenter InfiniBand Switch 648 Topic Set

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	Sun Datacenter InfiniBand Switch 648 Topic Set

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Administering the Switch

Understanding Administrative Commands

Monitoring the Switch

Monitoring the InfiniBand Fabric

Controlling the Switch

Controlling the InfiniBand Fabric

Diagnosing a Problem

Identifying the Problem

Troubleshooting the Switch

Understanding Signal Routing Through the Switch

Understanding Switch Startup and Component Addition

Switch GUIDs Overview

Remote Management

Understanding ILOM on the Switch

ILOM Documentation

Supported Features

Understanding ILOM Targets

Installing the ILOM Firmware

Firmware Layout

rupgrade_tool Application

Download the ILOM Firmware

Install the ILOM Firmware

Administering ILOM (CLI)

Access ILOM From the CLI

Switching Between the ILOM Shell and the Linux Shell

Monitoring ILOM Targets (CLI)

Controlling ILOM Targets (CLI)

Upgrading the Switch Firmware Through ILOM (CLI)

Administering ILOM (Web Interface)

Web Interface Overview

Access ILOM From the Web Interface

Monitoring ILOM Targets (Web Interface)

Controlling ILOM Targets (Web Interface)

Upgrading the Switch Firmware Through ILOM (Web Interface)

Understanding ILOM Commands

create Command

delete Command

version Command

Preparing the Site

Routing Service Cables

Understanding InfiniBand Cabling

Understanding Switch Specifications

Installing the Switch

Understanding the Installation

Installing the InfiniBand Software Stack

Unpacking the Chassis

Preparing the Chassis

Inspecting the Components

Installing the Components

Powering On the CMCs

Powering On the Fabric Cards

Powering On the Line Cards

Connecting InfiniBand Cables

Verifying the InfiniBand Fabric

Servicing the Switch

Understanding Service Procedures

Servicing the Power Supplies

Servicing the CMCs

Servicing the Fans

Servicing the Fabric Cards and Fabric Card Fillers

Servicing the InfiniBand Cables

Servicing the Line Cards

Doing Supportive Software Tasks

Command Reference

Understanding Switch-Specific Commands

activate Command

checkfans Command

checklinks Command

checkpowers Command

checkpwrfault Command

checkswitches Command

checkvoltages Command

clearboardstat Command

deactivate Command

disableboard Command

disablepsu Command

disablestby Command

disableswitchport Command

enableboard Command

enablehotinsert Command

enablepsu Command

enablestby Command

enableswitchport Command

env_test Command

findport Command

getbaseguid Command

getboardstat Command

getfwversion Command

getportcounters Command

getportstatus Command

getpsufwver Command

getserialnumbers Command

getsymerr Command

i2ctest Command

m9diag Command

mcmversion Command

psustatus Command

resetswitch Command

selectdebugport Command

setlinkspeed Command

showlogs Command

showpresent Command

showtemps Command

showvoltages Command

Understanding CLIA Commands

activate Command

deactivate Command

frucontrol Command

fruinfo Command

getfruledstate Command

getipmbstate Command

getlanconfig Command

LAN Configuration Parameters

localaddress Command

sensordata Command

session Command

setextracted Command

setfruledstate Command

setipmbstate Command

setlanconfig Command

setlocked Command

shelf Command

shelfaddress Command

shmstatus Command

showunhealthy Command

switchover Command

terminate Command

user [-v] Command

user add Command

user channel Command

user delete Command

user enable Command

user name Command

user passwd Command

version Command

Understanding InfiniBand Software Commands

ib_read_bw Command

ib_read_lat Command

ib_send_bw Command

ib_send_lat Command

ib_write_bw Command

ib_write_lat Command

ibaddr Command

ibcheckerrors Command

ibchecknet Command

ibchecknode Command

ibcheckport Command

ibcheckportstate Command

ibcheckportwidth Command

ibcheckstate Command

ibcheckwidth Command

ibclearcounters Command

ibclearerrors Command

ibdatacounters Command

ibdatacounts Command

ibdiagnet Command

ibdiagpath Command

ibhosts Command

ibnetdiscover Command

ibnodes Command

ibping Command

ibportstate Command

ibroute Command

ibrouters Command

ibstat Command

ibstatus Command

ibswitches Command

ibsysstat Command

ibtracert Command

ibv_devices Command

ibv_devinfo Command

ibv_rc_pingpong Command

ibv_srq_pingpong Command

ibv_uc_pingpong Command

ibv_ud_pingpong Command

ofed_info Command

opensm Command

opensmd Daemon

osmtest Command

perfquery Command

saquery Command

sminfo Command

smpdump Command

smpquery Command

vendstat Command

`checklinks` Command

Checks which links are down. Issued on the CMC.

Syntax

checklinks [-c][-e]

Description

This switch-specific command verifies that links are up for active line cards and fabric cards. Output is either a simple return of OK, or a comprehensive list of ports and respective switch chips on the component that are down.

Options

The following table describes the options to the checklinks command and their purposes:

Option	Purpose
`-c`	Output includes ports to line card connectors, stating which connector (for example 3A) on the respective line card is down.
`-e`	Attempt to enable links that are down. When this option is used, re-run the `checklinks` command to verify that links have been enabled.

Example

The following example shows how to check which links are down with the checklinks command.

# checklinks -c
LC 0 Active, checking links.....OK
LC 1 Active, checking links.....OK
LC 2 Active, checking links.....OK
LC 3 Active, checking links.....
Port 16 on I4 01 LC 3 is down         (Cable 3 A ) 
Port 17 on I4 01 LC 3 is down         (Cable 3 A ) 
Port 18 on I4 01 LC 3 is down         (Cable 3 A ) 
Port 22 on I4 03 LC 3 is down         (Cable 6 A ) 
Port 23 on I4 03 LC 3 is down         (Cable 6 A ) 
Port 24 on I4 03 LC 3 is down         (Cable 6 A ) 
.
.
.
#

In the example, switch chips 1 and 3 on line card 3 have downed links. These links route to cables at connector 3A and 6A on line card 3.

Note - The output in the example is just a portion of the full output.

Related Information

setlinkspeed Command

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