Trunk Group Operation Using Lacp - HP ProCurve series 2500 Management And Configuration Manual

Optimizing Port Usage Through Traffic Control and Port Trunking
Port Trunking

Trunk Group Operation Using LACP

The switch can automatically configure a dynamic LACP trunk group or you
can manually configure a static LACP trunk group. The methods for displaying
N o t e
LACP requires full-duplex (FDx) links of the same media type (10/100Base-T,
100FX, etc.) and speed, and enforces speed and duplex conformance across
a trunk group.
LACP trunk status include:
Trunk Display Method
CLI
CLI
Port/Trunk Settings screen in menu interface
In most cases, trunks configured for LACP on the ProCurve 2512/ 2524
switches operate as described in table 6-6:
Table 6-6.
LACP Port Trunk Operation
Configuration
Dynamic LACP This option automatically establishes an
name and
Under the following conditions, the switch automatically establishes a dynamic LACP port trunk group:
• The ports on both ends of a link have compatible mode settings (speed and duplex).
• The port on one end of a link must be configured for LACP Active and the port on the other end of
the same link must be configured for either LACP Passive (the default) or LACP Active. For example:
Either of the above link configurations allow a dynamic LACP trunk link.
Standby Links: A maximum of four operating links are allowed in the trunk, but, with dynamic LACP, you
can configure one or more backup links that the switch automatically activates if a primary link fails.
To configure a link as a standby for an existing four-port dynamic LACP trunk, ensure that both ports
in the standby link are configured the same as either of the above examples.
Displaying Dynamic LACP Trunk Data: To list the configuration and status for a dynamic LACP trunk,
use the CLI
Note: The dynamic trunk is automatically created by the switch, and is not listed in the static trunk
listings available in the menu interface or in the CLI show trunk listing.
6-24
show lacp
command
show trunk
command
LACP Trunk Types
LACP
for the port Type parameter.
Switch 1
Port X:
LACP Enable: Active
Port Y:
LACP Enable: Active
show lacp
command.
Static LACP Trunk
Included in listing.
Included in listing.
Included in listing.
802.3ad-compliant
trunk group, with
Switch 2
Port A:
Active-to-Active
LACP Enable: Active
Port B:
Active-to-Passive
LACP Enable: Passive
Dynamic LACP Trunk
Included in listing.
Not included.
Not included
Dyn1
for the port Group