50
www.cooperbussmann.com/wirelessresources
Cooper Bussmann 5073E-T Managed Ethernet Switch User Manual
Rev Version 1.1
Type
Select the trunk group type for the port (Static or LACP).
•
Static
—When Static is selected as the trunk group type for a port, the port
belongs to the trunk group whose ID is selected in Group ID drop down menu
for that port. Static trunk groups are only allowed to aggregate traffic in two to
four ports.
When ports belong to a static trunk, the traffic in the trunk group is distributed
evenly among the ports belonging to the trunk group. No protocol handshake is
necessary between the 5073E-T Switch and the ports.
•
LACP
—When LACP is selected as the trunk group type for a port, the port
belongs to the trunk group whose ID is selected in Group ID drop down menu
for that port. LACP trunk groups are only allowed to aggregate traffic in two to
four ports.
The number of ports that carry traffic in LACP trunk is determined by the Group
ID Work Port drop down menu for that trunk. The number of ports that carry
traffic should be less than or equal to the number of ports selected for that
LACP trunk.
If the number of work ports selected for the LACP trunk is less than the number
of ports that belong to the LACP trunk, the non-working port(s) will remain idle
and in standby. In this configuration, if a working port fails, one of the non-
working ports will be brought in to carry traffic in place of the failed working
port. The 5073E-T Switch uses IEEE 802.3ad LACP protocol to negotiate an
agreement with its member ports.
Work Ports
This menu only applies to LACP trunks. Work Ports allow you to choose the total
number of ports that are used to carry packet traffic.
Apply
Click to apply the settings.
Aggregation Status
The Aggregation Status page displays the current port aggregation settings. To display this page, choose
Configure-->
Aggregation
-->
Status
.
Figure 52 Aggregation Status
6.5.4 Spanning Tree
Rapid Spanning Tree Protocol (RSTP) is an evolution of the Spanning Tree Protocol (STP) and provides faster
spanning tree convergence after a topology change. The system also supports STP, and will auto-detect whether
the connected device is running STP or RSTP protocol.