HP PROCURVE 6120 User Manual download pdf (Page 271)

100

101

11-19

Port Trunking

Trunk Group Operation Using LACP

Table 11-4. LACP Trunk Types

LACP Port Trunk

Configuration

Operation

Dynamic LACP This option automatically establishes an 802.3ad-compliant trunk group, with LACP for the port Type

parameter and DynX for the port Group name, where X is an automatically assigned value from 1 to 60,

depending on how many dynamic and static trunks are currently on the switch. (The switch allows a

maximum of 60 trunk groups in any combination of static and dynamic trunks.)

Note: Dynamic LACP trunks operate only in the default VLAN (unless GVRP is enabled and Forbid is

used to prevent the trunked ports from joining the default VLAN). Thus, if an LACP dynamic port

forms using ports that are not in the default VLAN, the trunk will automatically move to the default

VLAN unless GVRP operation is configured to prevent this from occurring. In some cases, this can

create a traffic loop in your network. For more on this topic, refer to “VLANs and Dynamic LACP” on

page 11-23.

Under the following conditions, the switch automatically establishes a dynamic LACP port trunk group

and assigns a port Group name:

• The ports on both ends of each link have compatible mode settings (speed and duplex).

• The port on one end of each 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 or LACP Active. For example:

Either of the above link configurations allow a dynamic LACP trunk link.

Backup Links: A maximum of eight operating links are allowed in the trunk, but, with dynamic LACP,

you can configure one or more additional (backup) links that the switch automatically activates if a

primary link fails. To configure a link as a standby for an existing eight-port dynamic LACP trunk, ensure

that the ports in the standby link are configured as either active-to-active or active-to-passive between

switches.

Displaying Dynamic LACP Trunk Data: To list the configuration and status for a dynamic LACP trunk,

use the CLI

show lacp command.

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.

Switch 1

Port X:

LACP Enable: Active

Port Y:

LACP Enable: Active

Switch 2

Port A:

LACP Enable: Active

Port B:

LACP Enable: Passive

Active-to-Active

Active-to-Passive

1 2 ... 266 267 268 269 270 271 272 273 274 275 276 ... 588 589

Comments to this Manuals

No comments

HP PROCURVE 6120 User Manual Page 271

Comments to this Manuals

Related products and manuals for Software HP PROCURVE 6120