Management and Configuration Guide K/KA/KB.15.15

Table 11 LACP trunk types (continued)
OperationLACP port trunk configuration
• You want an LACP trunk group to operate in a VLAN other than the default VLAN
and GVRP is disabled.
• You want to use a monitor port on the switch to monitor an LACP trunk.
The trunk operates if the trunk group on the opposite device is running one of the
following trunking protocols:
• Active LACP
• Passive LACP
• Trunk
This option uses LACP for the port Type parameter and TrkX for the port Group
parameter, where X is an automatically assigned value in a range corresponding to
the maximum number of trunks the switch allows.
Displaying static LACP trunk data : To list the configuration and status for a static
LACP trunk, use the CLI show lacp command. To list a static LACP trunk with its
assigned ports, use the CLI show trunk command or display the menu interface
Port/Trunk Settings screen.
Static LACP does not allow standby ports.
Default port operation
In the default configuration, LACP is disabled for all ports. If LACP is not configured as Active on
at least one end of a link, the port does not try to detect a trunk configuration and operates as a
standard, untrunked port. Table 12 (page 154) lists the elements of per-port LACP operation. To
display this data for a switch, execute the following command in the CLI:
HP Switch show lacp
Table 12 LACP port status data
MeaningStatus name
Shows the physical port number for each port configured for LACP operation (C1, C2, C3 ….)
Unlisted port numbers indicate that the missing ports that are assigned to a static trunk group are
not configured for any trunking.
Port Numb
Active: The port automatically sends LACP protocol packets.LACP Enabled
Passive: The port does not automatically send LACP protocol packets and responds only if it receives
LACP protocol packets from the opposite device.
A link having either two active LACP ports or one active port and one passive port can perform
dynamic LACP trunking. A link having two passive LACP ports does not perform LACP trunking
because both ports are waiting for an LACP protocol packet from the opposite device.
NOTE: In the default switch configuration, LACP is disabled for all ports.
TrkX: This port has been manually configured into a static LACP trunk.Trunk Group
Trunk group same as port number: The port is configured for LACP, but is not a member of a port
trunk.
Up: The port has an active LACP link and is not blocked or in standby mode.Port Status
Down: The port is enabled, but an LACP link is not established. This can indicate, for example, a
port that is not connected to the network or a speed mismatch between a pair of linked ports.
Disabled: The port cannot carry traffic.
Blocked: LACP, Spanning Tree has blocked the port. (The port is not in LACP standby mode.) This
may be caused by a (brief) trunk negotiation or a configuration error, such as differing port speeds
on the same link or trying to connect the switch to more trunks than it can support. (See the table on
Table 10.)
NOTE: Some older devices are limited to four ports in a trunk. When eight LACP-enabled ports
are connected to one of these older devices, four ports connect, but the other four ports are blocked.
154 Port Trunking