svcadm(8)을 검색하려면 섹션에서 8 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.
if_mpadm(8)
if_mpadm(8) System Administration Commands if_mpadm(8)
NAME
if_mpadm - administer interfaces in an IP multipathing group
SYNOPSIS
if_mpadm -d | -r ifname
DESCRIPTION
The if_mpadm utility administers IP interfaces that are part of an IP
Multipathing (IPMP) group. Currently, administration is limited to of‐
flining IP interfaces and undoing previous offline operations.
When an IP interface is taken offline, all IP data traffic that was
flowing over the IP interface is moved to another IP interface in the
IPMP group. In addition, all UP IP addresses hosted on the IP interface
are brought down, causing in.mpathd(8) to stop probe-based failure de‐
tection on the IP interface. As a result, an offline IP interface will
not be used for any inbound or outbound IP traffic. Only IP interfaces
that are in an IPMP group may be brought offline. If the IP interface
is the last functioning interface in the IPMP group, the offline opera‐
tion will fail.
When an offline operation is undone, any IP addresses hosted on that IP
interface are brought UP and will be considered by in.mpathd for probe-
based failure detection. In addition, provided the IP interface is oth‐
erwise active (see in.mpathd(8)), it will again be used to send and re‐
ceive IP data traffic for the IPMP group. Note that not all offline op‐
erations can be undone. For instance, in.mpathd may have offlined an IP
interface because its hardware address was not unique within its IPMP
group. The ipmpstat utility can be used to determine why an IP inter‐
face is offline, identify which IP interfaces in a group are being used
for inbound and outbound IP traffic, and more; see ipmpstat(8).
OPTIONS
The if_mpadm utility supports the following options:
-d ifname Offline the IP interface specified by ifname. If ifname is
not in an IPMP group, or the offline would cause the IPMP
group to lose network connectivity, the operation will
fail.
-r ifname Undo a previous offline of the IP interface specified by
ifname. If ifname is not offline, the operation will fail.
EXAMPLES
Example 1 Offlining an IP Interface
The following command offlines the IP interface under0, causing any IP
packets that were being sent and received through it to be handled by
another IP interface in its group.
example% if_mpadm -d under0
Example 2 Undoing a Previous Offline Operation
Use the following command to undo the operation in the previous exam‐
ple:
example% if_mpdadm -r under0
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
tab() box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE TYPEAT‐
TRIBUTE VALUE _ Availabilitysystem/network _ Interface StabilityUncom‐
mitted
SEE ALSO
attributes(7), ifconfig(8), in.mpathd(8), ipmpstat(8)
DIAGNOSTICS
cannot offline: no other functioning interfaces are in its IPMP group.
Description:
This message means that offlining the IP interface would leave the
IPMP group without network connectivity.
cannot offline: not a physical interface or not in an IPMP group
Description:
This means that the IP interface is not an underlying interface in
an IPMP group, and therefore is not eligible to be offlined.
Oracle Solaris 11.4 11 Sep 2014 if_mpadm(8)