HP ProCurve 2520 Default Port Operation, Table 12-5.LACP Port Status Data

Port Trunking

Trunk Group Operation Using LACP

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, then the port does not try to detect a trunk configuration and operates as a standard, untrunked port. Table 12-5 lists the elements of per-port LACP operation. To display this data for a switch, execute the following command in the CLI:

ProCurve> show lacp

Table 12-5. LACP Port Status Data

Status Name	Meaning
Port Numb	Shows the physical port number for each port configured for LACP operation (C1, C2, C3 …). Unlisted port
	numbers indicate that the missing ports are assigned to a static Trunk group are not configured for any
	trunking.
LACP Enabled	Active: The port automatically sends LACP protocol packets.
	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 will 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.
Trunk Group	TrkX: This port has been manually configured into a static LACP trunk.
	Trunk Group Same as Port Number: The port is configured for LACP, but is not a member of a port trunk.
Port Status	Up: The port has an active LACP link and is not blocked or in Standby mode.
	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 due to 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 page 12-5.)
	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.
	Standby: The port is configured for dynamic LACP trunking to another device, but the maximum number
	of ports for the Dynamic trunk to that device has already been reached on either the switch or the other
	device. This port will remain in reserve, or “standby” unless LACP detects that another, active link in the
	trunk has become disabled, blocked, or down. In this case, LACP automatically assigns a Standby port,
	if available, to replace the failed port.

12-21