11-23
Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
OL-8978-04
Chapter 11 Configuring VLANs
Configuring Private VLANs on the Switch
• The isolated and community ports should run the BPDU guard features to prevent the spanning-tree
loops due to misconfigurations.
• The primary VLANs and associated isolated/community VLANs must have the same spanning-tree
configuration. This configuration maintains the consistent spanning-tree topologies between the
associated primary, isolated, and community VLANs and avoids possible connectivity loss. These
priorities and parameters automatically propagate from the primary VLAN to the isolated and
community VLANs.
• You can create the private VLANs that run in MISTP mode as follows:
–
If you disable MISTP, any change to the configuration of a primary VLAN propagates to all
corresponding isolated and community VLANs, and you cannot change the isolated or
community VLANs.
–
If you enable MISTP, you can only configure the MISTP instance with the primary VLAN. The
changes will be applied to the primary VLAN and will propagate to the isolated and community
VLANs.
Table 11-3 Modules with Ports Listed by ASIC Groups
Module Number Description Ports by ASIC
WS-X6224-100FX-MT 24-port 100BASE-FX multimode,
MT-RJ
Ports 1–12
Ports 13–24
WS-X6324-100FX-SM
WS-X6324-100FX-MM
24-port 100BASE-FX single mode
or multimode, MT-RJ
Ports 1–12
Ports 13–24
WS-X6024-10FL-MT 24-port 10BASE-FL, MT-RJ Ports 1–12
Ports 13–24
WS-X6248-TEL
WS-X6248A-TEL
WS-X6348-RJ-21(V)
WS-X6148-RJ-21(V)
WS-X6148-21AF
48-port 10/100BASE-TX, RJ-21 Ports 1–12
Ports 13–24
Ports 25–36
Ports 37–48
WS-X6348-RJ-45
WS-X6348-RJ-45(V)
WS-X6248-RJ-45
WS-X6248A-RJ-45
WS-X6148-RJ-45(V)
WS-X6148-45AF
48-port 10/100BASE-TX, RJ-45 Ports 1–12
Ports 13–24
Ports 25–36
Ports 37–48
WS-X6148-GE-TX
WS-X6148V-GE-TX
WS-X6148-GE-45AF
WS-X6548-GE-TX
WS-X6548V-GE-TX
WS-X6548-GE-45AF
48-port 10/100/1000BASE-TX,
RJ-45
Ports 1–8
Ports 9–16
Ports 17–24
Ports 25–32
Ports 33–40
Ports 41–48
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