Multilink Trunking Configuration Rules - Nortel 2000 Using Manual

Ensure that the chosen switch ports are set to Enabled, using either the Port
Configuration screen (see Chapter 3) or other network management system.
Trunk member ports must have the same VLAN configuration.
3
All network cabling should be complete and stable before configuring any
trunks, to avoid configuration errors.
4
Consider how the existing spanning tree will react to the new trunk
configuration (see
Chapter 1 for spanning tree group configuration guidelines).
5
Consider how existing VLANs will be affected by the addition of a trunk.

MultiLink Trunking configuration rules

The MultiLink Trunking feature is deterministic; that is, it operates according to
specific configuration rules. When creating trunks, consider the following rules
that determine how the MultiLink Trunk reacts in any network topology:
• Any port that participates in MultiLink Trunking must be an active port (set to
Enabled via the Port Configuration screen or through network management).
• All trunk members must have the same VLAN configuration before the Trunk
Configuration screen's Trunk Status field can be set to Enabled using CI
menus (see Chapter 3).
• When an active port is configured in a trunk, the port becomes a trunk member
when you set the Trunk Status field to Enabled. The spanning tree parameters
for the port then change to reflect the new trunk settings.
• All trunk members must be in the same spanning tree group and can belong to
only one spanning tree group.
• If you change the spanning tree participation of any trunk member to Enabled
or Disabled, the spanning tree participation of all members of that trunk
changes similarly (see
and Chapter 1 for spanning tree group configuration guidelines).
• When a trunk is enabled, the trunk spanning tree participation setting takes
precedence over that of any trunk member.
• If you change the VLAN settings of any trunk member, the VLAN settings of
all members of that trunk change similarly.
Chapter 2 Network configuration 133
"Spanning tree considerations for MultiLink
"Spanning tree considerations for MultiLink
Using the Business Policy Switch 2000 Version 1.2
Trunks" and
Trunks"