HP 1820, Management And Configuration Manual

Page: 56 / 110

6-2
Trunks
Trunk Configuration
Table 6-1. Trunk Configuration Fields
Modifying Trunk Settings
To modify a trunk, select it and click Edit . The Edit Existing Trunk page displays:
Figure 6-2. Edit Existing Trunk Page
You can define the trunk name, administratively enable and disable the trunk, and select between static and
dynamic mode, as described in Table 6-1 on page 6-2. You can also configure the following additional settings:
Field Description
Trunk The trunk ID.
Name The configurable trunk name, which is the same as the trunk ID by default.
Type Trunks can be either dynamic or static, but not both:
•
Dynamic —Dynamic trunks use the Link Aggregation Control Protocol (LACP, IEEE
standard 802.3ad). An LACP-enabled port automatically detects the presence of other
aggregation-capable network devices in the system and exchanges Link Aggregation Control
Protocol Data Units (LACPDUs) with links in the trunk. The PDUs contain information about
each link and enable the trunk to maintain them.
• Static —Static trunks are assigned to a bundle by the administrator. Members do not exchange
LACPDUs. A static trunk does not require a partner system to be able to aggregate its member
ports. This is the default port type.
Note that the loop protection feature is not supported on dynamic trunks. If loop protection is
enabled on a static trunk and the trunk is changed to a dynamic trunk, loop protection is disabled.
Admin Mode Whether the trunk is administratively enabled or disabled. This feature is enabled by default.
Link Status Indicates the operational status of the trunk interface, which can be Up , Up (SFP) for ports with
an installed SFP transceiver, or Down .
Members The ports that are members of the trunk. By default, no ports belong to any trunk.
Active Ports The ports that are actively participating members of a trunk. A member port that is operationally
or administratively disabled or does not have a link is not an active port.