BayStack 450 10/100/1000 Series Switches
302401-D Rev 00 1-47

VLAN Configuration Rules

VLANs operate acco rding to speci fic conf igu ration rule s. When creating VLANs ,
consider the fo llowing rules that de termin e how the con figured VLAN reacts in
any network topology:
All ports that are involved in port mirroring must have memberships in the
same VLANs. If a port is configured for port mirroring, the port’s VLAN
membership cannot be changed.
If a port is a trunk group member, all trunk members are added or deleted
from the VLAN.
All ports involved in trunking and port mirroring must have the same VLAN
configuration. If a port is on a trunk with a mirroring port, the VLAN
configuration cannot be changed.
VLANs are not dependent on Rate Limiting settings.
If a port is an IGMP member on any VLAN, and is removed from a VLAN,
the ports IGMP membership is also removed.
If a port is added to a different VLAN, and it is already configured as a static
router port, the port is configured as an IGMP member on that specific
VLAN.
For more information about configuring VLANs, see “VLAN Configuration
Menu” on page 3-22.
See also Ap pendix D, “Quick Steps to Fe atures,” for conf igur ation flo wch arts tha t
can help you use this feature.
kombk.book Page 47 Tuesday, June 29, 1999 3:25 PM