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show lacp interfaces
Syntax
show lacp interfaces<interface-name>
Release Information
Command introduced in Junos OS Release
7.6.
Description
Display Link Aggregation Control Protocol (LACP)
information about the specified aggregated Ethernet, Fast Ethernet,
or Gigabit Ethernet interface.
Options
none | — | Display
LACP information for all interfaces. |
interface-name | — | (Optional) Display LACP information for the specified
interface: - Aggregated Ethernet—aenumber
- Fast Ethernet—fe-fpc/pic/port
- Gigabit Ethernet—ge-fpc/pic/port
|
 | Note:
The show lacp interfaces command returns the
following error message if your system is not configured in either
active or passive LACP mode: “Warning: lacp subsystem not running – not needed
by configuration” |
Required Privilege Level
view
List of Sample Output
show lacp interfaces (Aggregated Ethernet)show lacp interfaces (Gigabit Ethernet)Output Fields
Table 1 lists the output fields for the show lacp interfaces command.
Output fields are listed in the approximate order in which they appear.
Table 1: show lacp interfaces Output Fields
Field Name | Field Description |
|---|
Aggregated interface | Aggregated interface value. |
LACP State | LACP state information for each
aggregated interface: - Role—Role played by the interface. It can
be one of the following:
- Actor—Local device participating in LACP
negotiation.
- Partner—Remote device participating in
LACP negotiation.
- Exp—Expired state. Yes indicates
the actor or partner is in an expired state. No indicates
the actor or partner is not in an expired state.
- Def—Default. Yes indicates that
the actor’s receive machine is using the default operational
partner information, administratively configured for the partner. No indicates the operational partner information in use has
been received in an LACP PDU.
- Dist—Distribution of outgoing frames. No indicates distribution of outgoing frames on the link is
currently disabled and is not expected to be enabled. Otherwise, the
value is Yes.
- Col—Collection of incoming frames. Yes indicates collection of incoming frames on the link is currently
enabled and is not expected to be disabled. Otherwise, the value is No.
- Syn—Synchronization. If the value is Yes, the link is considered synchronized. It has been allocated
to the correct link aggregation group, the group has been associated
with a compatible aggregator, and the identity of the link aggregation
group is consistent with the system ID and operational key information
transmitted. If the value is No, the link is not synchronized.
It is currently not in the right aggregation.
- Aggr—Ability of aggregation port to aggregate
(Yes) or to operate only as an individual link (No).
- Timeout—LACP timeout preference. Periodic
transmissions of LACP PDUs occur at either a slow or fast transmission
rate, depending upon the expressed LACP timeout preference (Long Timeout or Short Timeout).
- Activity—Actor or partner’s port
activity. Passive indicates the port’s preference for
not transmitting LAC PDUs unless its partner’s control value
is Active. Active indicates the port’s preference
to participate in the protocol regardless of the partner’s control
value.
|
LACP Protocol | LACP protocol information for each
aggregated interface: - Link state (active or standby) indicated in parentheses
next to the interface when link protection is configured.
- Receive State—One of the following values:
- Current—The state machine receives an LACP
PDU and enters the Current state.
- Defaulted—If no LACP PDU is received before
the timer for the Current state expires a second time, the
state machine enters the Defaulted state.
- Expired—If no LACP PDU is received before
the timer for the Current state expires once, the state machine
enters the Expired state.
- Initialize—When the physical connectivity
of a link changes or a Begin event occurs, the state machine enters
the Initialize state.
- LACP Disabled—If the port is operating
in half duplex, the operation of LACP is disabled on the port, forcing
the state to LACP Disabled. This state is similar to the Defaulted state, except that the port is forced to operate
as an individual port.
- Port Disabled—If the port becomes inoperable
and a Begin event has not occurred, the state machine enters the Port Disabled state.
- Transmit State—Transmit state of state
machine. One of the following values:
- Fast Periodic—Periodic transmissions are
enabled at a fast transmission rate.
- No Periodic—Periodic transmissions are
disabled.
- Periodic Timer—Transitory state entered
when the periodic timer expires.
- Slow Periodic—Periodic transmissions are
enabled at a slow transmission rate.
- Mux State—State of the multiplexer state
machine for the aggregation port. The state is one of the following
values:
- Attached—Multiplexer state machine initiates
the process of attaching the port to the selected aggregator.
- Collecting—Yes indicates that
the receive function of this link is enabled with respect to its participation
in an aggregation. Received frames are passed to the aggregator for
collection. No indicates the receive function of this link
is not enabled.
- Collecting Distributing—Collecting and
distributing states are merged together to form a combined state (coupled
control). Because independent control is not possible, the coupled
control state machine does not wait for the partner to signal that
collection has started before enabling both collection and distribution.
- Detached—Process of detaching the port
from the aggregator is in progress.
- Distributing—Yes indicates that
the transmit function of this link is enabled with respect to its
participation in an aggregation. Frames may be passed down from the
aggregator’s distribution function for transmission. No indicates the transmit function of this link is not enabled.
- Waiting—Multiplexer state machine is in
a holding process, awaiting an outcome.
|
LACP Statistics | LACP statistics are returned when the extensive option is used and provides the following information: - LACP Rx—LACP received counter that increments
for each normal hello.
- LACP Tx—Number of LACP transmit packet
errors logged.
- Unknown Rx—Number of unrecognized packet
errors logged.
- Illegal Rx—Number of invalid packets received.
|
Sample Output
show lacp interfaces (Aggregated Ethernet)
user@host> show lacp interfaces ae0 extensive Aggregated interface: ae0
LACP state: Role Exp Def Dist Col Syn Aggr Timeout Activity
ge-1/0/1 Actor No Yes No No No Yes Fast Active
ge-1/0/1 Partner No Yes No No No Yes Fast Passive
ge-1/0/2 Actor No Yes No No No Yes Fast Active
ge-1/0/2 Partner No Yes No No No Yes Fast Passive
LACP protocol: Receive State Transmit State Mux State
ge-1/0/1 CURRENT Fast periodic Collecting distributing
ge-1/0/2 CURRENT Fast periodic Collecting distributing
ge-1/0/1 (active) CURRENT Fast periodic Collecting distributing
ge-1/0/2 (standby) CURRENT Fast periodic WAITING
LACP Statistics: LACP Rx LACP Tx Unknown Rx Illegal Rx
ge-1/0/1 0 0 0 0
ge-1/0/2 0 0 0 0
show lacp interfaces (Gigabit Ethernet)
user@host> show lacp interfaces ge-0/3/0 Aggregated interface: ae0
LACP State: Role Exp Def Dist Col Syn Aggr Timeout Activity
ge-0/3/0 Actor No No Yes Yes Yes Yes Fast Active
ge-0/3/0 Partner No No Yes Yes Yes Yes Fast Active
LACP Protocol: Receive State Transmit State Mux State
ge-0/3/0 Current Fast periodic Collecting distributing
Published: 2013-08-29
