Technical data

Getting Started
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• STP field --- indicates the spanning tree participation setting for each of the
trunks:
– Trunks I1 through I4 --- indicates that trunks I1 through I4 are
enabled for spanning tree participation.
• Trunk Mode field --- indicates the Trunk Mode for each of the trunks:
– Trunks I1 through I4 --- The Trunk Mode fields for trunks I1 through
I4 are set to Enhanced. When in this mode, the switch evenly
distributes source MAC addresses to the trunk members, balancing
traffic throughout each trunk.
• Trunk Status field --- indicates the Trunk Status for each of the trunks. When
set to Enabled, the configuration settings for that specific trunk are activated.
VLAN Configuration Screen for Switch SW1
This section shows how the VLAN Configuration screen for switch SW1 displays
the new trunk configuration (Figure 1-21
and Figure 1-22). The addition of a
trunk updates this screen and other related screens (for example the Spanning Tree
Configuration screen) with the new trunking information.
As stated earlier in this chapter, the VLAN Configuration screen changes to allow
only five VLANs when you activate the MultiLink Trunking feature. VLAN
columns V6 to V8 are not displayed when any trunk is created.
If any VLANs are already configured in VLANs V6 to V8 when you activate the
MultiLink Trunking feature, the trunk configuration screen prompts you to
reconfigure VLANs V6 to V8 (for example, move those ports to any VLAN other
than V6 through V8).
Note: Certain protocols, such as Local Area Transport (LAT), require proper
sequencing of received packets for correct operation. Using Enhanced mode
may cause some packets to be received out of sequence. If your application is
using a protocol requiring proper sequencing of packets, use the Basic mode.
Note: The VLAN Configuration screens for the other switches described in
Figure 1-16
(SW2, SW3, and SW4) are not shown here, but they also change
to show the configurations for the specific switch.