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man pages section 1M: System Administration Commands     Oracle Solaris 11.1 Information Library
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Preface

Introduction

System Administration Commands - Part 1

6to4relay(1M)

acct(1M)

acctadm(1M)

acctcms(1M)

acctcon1(1M)

acctcon(1M)

acctcon2(1M)

acctdisk(1M)

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acctmerg(1M)

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acctprc(1M)

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adbgen(1M)

add_allocatable(1M)

addbadsec(1M)

add_drv(1M)

aimanifest(1M)

arp(1M)

asradm(1M)

asr-notify(1M)

atohexlabel(1M)

audit(1M)

auditconfig(1M)

auditd(1M)

auditrecord(1M)

auditreduce(1M)

auditstat(1M)

audit_warn(1M)

automount(1M)

automountd(1M)

autopush(1M)

bart(1M)

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cfgadm_ac(1M)

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idmapd(1M)

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in.iked(1M)

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init.wbem(1M)

inityp2l(1M)

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in.mpathd(1M)

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intrd(1M)

intrstat(1M)

in.uucpd(1M)

iostat(1M)

ipaddrsel(1M)

ipadm(1M)

ipf(1M)

ipfs(1M)

ipfstat(1M)

ipmgmtd(1M)

ipmon(1M)

ipmpstat(1M)

ipnat(1M)

ippool(1M)

ipqosconf(1M)

ipsecalgs(1M)

ipsecconf(1M)

ipseckey(1M)

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js2ai(1M)

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kernel(1M)

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killall(1M)

kmem_task(1M)

kmscfg(1M)

kprop(1M)

kpropd(1M)

kproplog(1M)

krb5kdc(1M)

ksslcfg(1M)

kstat(1M)

ktkt_warnd(1M)

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labelit_ufs(1M)

lastlogin(1M)

latencytop(1M)

ldapaddent(1M)

ldap_cachemgr(1M)

ldapclient(1M)

ldmad(1M)

link(1M)

llc2_loop(1M)

lldpadm(1M)

lldpd(1M)

lms(1M)

locator(1M)

lockd(1M)

lockfs(1M)

lockstat(1M)

lofiadm(1M)

logadm(1M)

logins(1M)

lshal(1M)

System Administration Commands - Part 2

System Administration Commands - Part 3

ipmpstat

- display IPMP subsystem status

Synopsis

ipmpstat [-n] [-o field[,...] [-P]] -a|-g|-i|-p|-t

Description

The ipmpstat command concisely displays information about the IPMP subsystem. It supports five different output modes, each of which provides a different view of the IPMP subsystem (address, group, interface, probe, and target), described below. At most one output mode may be specified per invocation, and the displayed information is guaranteed to be self-consistent. It also provides a parseable output format which may be used by scripts to examine the state of the IPMP subsystem. Only basic privileges are needed to invoke ipmpstat, with the exception of probe mode which requires all privileges.

Options

The following options are supported:

-a

Display IPMP data address information (“address” output mode).

-g

Display IPMP group information (“group” output mode).

-i

Display IP interface information (“interface” output mode).

-n

Display IP addresses numerically, rather than attempting to resolve them to hostnames. This option may be used in any output mode.

-o field[,...]

Display only the specified output fields, in order. The list of field names is case-insensitive and comma-separated. The field names that are supported depend on the selected output mode, described below. The special field name all may be used to display all fields for a given output mode.

-p

Display IPMP probe information (“probe” output mode).

-t

Display IPMP target information (“target” output mode).

-P

Display using a machine-parseable format, described below. If this option is specified, an explicit list of fields must be specified using the -o option.

Output Modes

The ipmpstat utility supports the output modes listed below. Note that these modes map to some of the options described above.

Address Mode

Address mode displays the state of all IPMP data addresses on the system. The following output fields are supported:

ADDRESS

The hostname (or IP address) associated with the information. Note that because duplicate down addresses may exist, the address must be taken together with the GROUP to form a unique identity. For a given IPMP group, if duplicate addresses exist, at most one will be displayed, and an up address will always take precedence.

STATE

The state of the address. Either up if the address is IFF_UP (see ifconfig(1M)), or down if the address is not IFF_UP.

GROUP

The IPMP IP interface hosting the address.

INBOUND

The underlying IP interface that will receive packets for this address. This may change in response to external events such as IP interface failure. If this field is empty, then the system will not accept IP packets sent to this address (for example, because the address is down or because there are no active IP interfaces left in the IPMP group).

OUTBOUND

The underlying IP interfaces that will send packets using this source address. This may change in response to external events such as IP interface failure. If this field is empty, then the system will not send packets with this address as a source (for example, because the address is down or because there are no active IP interfaces left in the IPMP group).

If -o is not specified, all output fields are displayed.

Group Mode

Group mode displays the state of all IPMP groups on the system. The following output fields are supported:

GROUP

The IPMP IP interface name associated with the information. For the anonymous group (see in.mpathd(1M)), this field will be empty.

GROUPNAME

The IPMP group name. For the anonymous group, this field will be empty.

STATE

The state of the group:

ok

All interfaces in the group are usable.

degraded

Some (but not all) interfaces in the group are usable.

failed

No interfaces in the group are usable.

FDT

The probe-based failure detection time. If probe-based failure detection is disabled, this field will be empty.

INTERFACES

The list of underlying IP interfaces in the group. The list is divided into three parts:

  1. Active interfaces are listed first and not enclosed in any brackets or parenthesis. Active interfaces are those being used by the system to send or receive data traffic.

  2. INACTIVE interfaces are listed next and enclosed in parenthesis. INACTIVE interfaces are those that are functioning, but not being used according to administrative policy.

  3. Unusable interfaces are listed last and enclosed in brackets. Unusable interfaces are those that cannot be used at all in their present configuration (for example, FAILED or OFFLINE).

If -o is not specified, all output fields are displayed.

Interface Mode

Interface mode displays the state of all IP interfaces that are tracked by in.mpathd on the system. The following output fields are supported:

INTERFACE

The IP interface name associated with the information.

ACTIVE

Either yes or no, depending on whether the IP interface is being used by the system for IP data traffic.

GROUP

The IPMP IP interface associated with the IP interface. For IP interfaces in the anonymous group (see in.mpathd(1M)), this field will be empty.

FLAGS

Assorted information about the IP interface:

i

Unusable due to being INACTIVE.

s

Marked STANDBY.

m

Nominated to send/receive IPv4 multicast for its IPMP group.

b

Nominated to send/receive IPv4 broadcast for its IPMP group.

M

Nominated to send/receive IPv6 multicast for its IPMP group.

d

Unusable due to being down.

h

Unusable due to being brought OFFLINE by in.mpathd because of a duplicate hardware address.

LINK

The state of link-based failure detection:

up

The link is up.

down

The link is down.

unknown

The network driver does not report link state changes.

PROBE

The state of probe-based failure detection:

ok

Probes detect no problems.

failed

Probes detect failure.

unknown

Probes cannot be sent since no suitable probe targets are known.

disabled

Probes have been disabled because a unique IP test address has not been configured.

STATE

The overall state of the interface:

ok

The interface is online and functioning properly based on the configured failure detection methods.

failed

The interface is online but has a link state of down or a probe state of failed.

offline

The interface is offline.

unknown

The interface is online but may or may not be functioning because the configured failure detection methods are in unknown states.

If -o is not specified, all output fields are displayed.

Probe Mode

Probe mode displays information about the probes being sent by in.mpathd. Unlike other output modes, this mode runs until explicitly terminated using Ctrl-C. The following output fields are supported:

TIME

The time the probe was sent, relative to when ipmpstat was started. If the probe was sent prior to starting ipmpstat, the time will be negative.

PROBE

An identifier representing the probe. The identifier embeds a prefix denoting the probe type, followed by a numerical identifier for the probe. The permissible values for the probe type are:

i

ICMP probes

t

transitive probes

ICMP probes are sent from active interfaces; the numeric identifier of the probe is incremented for each IP probe sent by in.mpathd over a given active interface. The numeric identifier matches the icmp_seq field of the ICMP probe packet and can be used for a more detailed analysis by packet monitoring tools.

When the IPMP group does not have any NOFAILOVER test addresses configured on any of the interfaces in the group, transitive probes are sent from all interfaces that are not actively being used for receiving data packets. The numeric identifier of transitive probes is incremented for each transitive probe sent from a given interface. The format of a probe packet is internal to the implementation.

INTERFACE

The IP interface the probe was sent on.

TARGET

The hostname (or IP address) of the target to which an ICMP probe is sent from an active interface or the name of the IP interface to which the transitive probe is sent.

NETRTT

The network round-trip-time for the probe. This is the time between when the IP module sends the probe and when the IP module receives the acknowledgment. If in.mpathd has concluded that the probe has been lost, this field will be empty.

RTT

The total round-trip-time for the probe. This is the time between when in.mpathd starts executing the code to send the probe, and when it completes processing the ack. If in.mpathd has concluded that the probe has been lost, this field will be empty. Spikes in the total round-trip time that are not present in the network round-trip time indicate that the local system itself is overloaded.

RTTAVG

The average round-trip-time to TARGET over INTERFACE. This aids identification of slow targets. If there is insufficient data to calculate the average, this field will be empty.

RTTDEV

The standard deviation for the round-trip-time to TARGET over INTERFACE. This aids identification of jittery targets. If there is insufficient data to calculate the standard deviation, this field will be empty.

If -o is not specified, all fields except for RTTAVG and RTTDEV are displayed.

Target Mode

Target mode displays IPMP probe target information. The following output fields are supported:

INTERFACE

The IP interface name associated with the information.

MODE

The probe target discovery mode:

routes

Probe targets found by means of the routing table.

multicast

Probe targets found by means of multicast ICMP probes.

disabled

All probe-based failure detection is disabled.

transitive

Failure detection is by means of transitive probing, where the health of the IP interface is determined by probing other active interfaces in the group.

TESTADDR

The source address used in outgoing probes. Active interfaces that are being used for data traffic, as well as interfaces that have been explicitly configured with NOFAILOVER test addresses, will have the hostname (or IP address) that is used for sending and receiving the ICMP probes. All other interfaces in the group will display the name of the interface from which the probes are sent. Note that if an active IP interface is configured with both IPv4 and IPv6 test addresses, probe target information will be displayed separately for each test address.

TARGETS

A space-separated list of probe target hostnames (or IP addresses) for ICMP probes, or target interfaces for transitive probes. The IP targets will be listed in firing order, and, if no probe targets could be found, this field will be empty.

If -o is not specified, all output fields are displayed.

Output Format

By default, ipmpstat uses a human-friendly tabular format for its output modes, where each row contains one or more fields of information about a given object, which is in turn uniquely identified by one or more of those fields. In this format, a header identifying the fields is displayed above the table (and after each screenful of information), fields are separated by whitespace, empty fields are represented by -- (double hyphens), and other visual aids are used. If the value for a field cannot be determined, its value will be displayed as “?” and a diagnostic message will be output to standard error.

Machine-parseable format also uses a tabular format, but is designed to be efficient to programmatically parse. Specifically, machine-parseable format differs from human-friendly format in the following ways:

Examples

Example 1 Obtaining Failure Detection Time of a Specific Interface

The following code uses the machine-parseable output format to create a ksh function that outputs the failure detection time of a given IPMP IP interface:

     getfdt() {
         ipmpstat -gP -o group,fdt | while IFS=: read group fdt; do
             [[ "$group" = "$1" ]] && { echo "$fdt"; return; }
         done
     }

Attributes

See attributes(5) for descriptions of the following attributes:

/usr/sbin/ipmpstat:

ATTRIBUTE TYPE
ATTRIBUTE VALUE
Availability
system/core-os
Interface Stability
Committed
Machine-Parseable Format
Committed
Human-Friendly Format
Not-an-Interface

/usr/sbin/ipmpstat is not a Committed interface.

See Also

if_mpadm(1M), ifconfig(1M), in.mpathd(1M), attributes(5)