Enterasys Networks 1G58x-09 - Manual (Page 193)

Port Configuration Command Set
Configuring Link Aggregation
Matrix E1 Series (1G58x-09 and 1H582-xx) Configuration Guide 4-47
• None of the ports in a trunk or LAG should be configured as a mirror source port or mirror target
port. If a port with an active LACP link is configured as a mirror source or target port, the LACP
link will be brought down. Note that all eight ports in the same port group are affected—once
one port in the group is mirrored, any other LACP ports in the same group will be removed from
the trunk.
• All the ports in a trunk or LAG have to be treated as a whole when moved from/to, added or
deleted from a VLAN.
• The Spanning Tree Algorithm will treat all the ports in a trunk or LAG as a whole.
• The Spanning Tree state of a trunk or LAG will be the Spanning Tree state of the lowest
numbered port. All other member ports will assume a Spanning Tree state of disabled.
• Before removing a static port trunk via CLI commands, you must remove all network cables.
Otherwise, a loop may be created.
• To disable a single link within a port trunk, you should first remove the network cable, and then
disable both ends of the link. This allows the traffic passing across that link to be automatically
distributed to the other links in that trunk, without losing any significant amount of traffic.
4.3.10.2 Port Grouping Considerations
When configuring the Matrix E1 for link aggregation, it is important to understand how ports are
grouped in the device’s fixed front panel and optional expansion module(s). All ports in a trunk or
a link aggregation group (LAG) must belong to the same port group. Port groupings are designated
as follows:
• The fixed front panel in the 1H582-51 has six groups of eight ports, as shown in Figure 4-3 and
Table 4-5 .
• The fixed front panel in the 1H582-25 has three groups of eight ports, as shown in Figure 4-4
and Table 4-5 .
• Depending on the module(s) installed, optional expansion modules have two groups of up to
eight ports, as shown in
Figure 4-3 and Figure 4-4 . When the 1H-16TX expansion module is
installed, it provides 16 RJ45 ports which belong to two port groups, as shown in Table 4-6 .
Important Notice
The port grouping designations detailed below apply only to the Matrix E1 1H582-51 and 1H582-25 models,
as well as the 1H-16TX and the 1H-8FX expansion modules.