Nortel business policy switch 2000, Руководство пользователя

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Using the Business Policy Switch 2000 Version 2.0
• When you create a VLAN, that VLAN automatically belongs to STG 1, the
default STG. If you want the VLAN in another STG, you must move the
VLAN by assigning it to another STG.
• You move a newly created VLAN to an existing STG by following this order:
— Create the VLAN
— Add the VLAN to an existing STG
• You cannot delete or move VLAN1 from STG1.
• VLANs must be contained within a single STG; a VLAN cannot span
multiple STGs. By confining VLANs within a single STG, you avoid
problems with spanning tree blocking ports and causing a loss of connectivity
within the VLAN. When a VLAN spans multiple switches, the VLAN must
be within the same spanning tree group (have the same STG ID) across all the
switches.
• All VLANs in the same shared database (SVL) must be assigned to the same
STG.
• All members of a particular MultiLink Trunking (MLT) group must be
assigned to the same STG; that is, they can belong to one and only one STG.
• A port that is not a member of any VLAN cannot be added to any STG. The
port must be added to a VLAN, and that VLAN added to the desired STG.
• Tagged ports can belong to more than one STG, but untagged ports can belong
to
only one STG.
• When a tagged port belongs to more than one STG, the egress BPDUs are
tagged to distinguish the BPDUs of one STG from those of another STG.
Note: Beginning with software version 2.0, you can move VLANs
directly into STGs; you no longer need to delete them from the previous,
or default, STG first.