svcadm(8)을 검색하려면 섹션에서 8 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.
ipmpstat(8)
ipmpstat(8) System Administration Commands ipmpstat(8)
NAME
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 sub‐
system. 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, de‐
scribed 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 ad‐
dress 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(8)), 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(8)), 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 us‐
able.
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 re‐
ceive 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 admin‐
istrative 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 be‐
ing 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(8)), 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 un‐
known 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 explic‐
itly terminated using Ctrl-C. The following output fields are sup‐
ported:
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 identi‐
fier 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 iden‐
tifier 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 inter‐
nal 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 be‐
tween 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 be‐
tween 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 ta‐
ble.
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 prob‐
ing, where the health of the IP interface is de‐
termined 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 ad‐
dresses, 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 ad‐
dresses) 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 out‐
put 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:
o No headers are displayed.
o Fields with empty values yield no output, rather than show‐
ing --.
o Fields are separated by a single colon (:), rather than
variable amounts of whitespace.
o If multiple fields are requested, and a literal : or a back‐
slash (\) occur in a field's value, they are escaped by pre‐
fixing them with \.
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(7) for descriptions of the following attributes:
/usr/sbin/ipmpstat:
tab() box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE TYPEAT‐
TRIBUTE VALUE _ Availabilitysystem/network _ Interface StabilityCommit‐
ted _ Machine-Parseable FormatCommitted _ Human-Friendly FormatNot-an-
Interface
/usr/sbin/ipmpstat is not a Committed interface.
SEE ALSO
attributes(7), if_mpadm(8), ifconfig(8), in.mpathd(8)
Oracle Solaris 11.4 11 Sep 2014 ipmpstat(8)