A
DVANCE D
T
OPICS
4-4
•
End stations can belong to multiple VLANs
•
Passing traffic between VLAN-aware and VLAN-unaware
devices
•
Two-level priority tagging
Assigning Ports to VLANs
Before enabling VLANs for the switch, you must first assign each
port to the VLAN group(s) it will participate in. (By default all
ports are assigned to VLAN 1 as untagged ports.) Add a port as a
tagged port (that is, a port attached to a VLAN-aware device) if you
want it to carry traffic for one or more VLANs and the device at the
other end of the link also supports VLANs. Then assign the port at
the other end of the link to the same VLAN(s). However, if you
want a port on this switch to participate in one or more VLANs,
but the device at the other end of the link does not support
VLANs, then you must add this port as an untagged port (that is, a
port attached to a VLAN-unaware device).
Port-based VLANs are tied to specific ports. The switch’s
forwarding decision is based on the destination MAC address and
its associated port. Therefore, to make valid forwarding and
flooding decisions, the switch learns the relationship of the MAC
address to its related port—and thus to the VLAN—at run-time.
VLAN Classification
When the switch receives a frame, it classifies the frame in one of
two ways:
◆
If the frame is untagged, the switch assigns the frame to an
associated VLAN (based on the PVID of the receiving port).
◆
If the frame is tagged, the switch uses the tagged VLAN ID to
identify the port broadcast domain of the frame.
Содержание 8606SX - annexe 1
Страница 2: ......
Страница 124: ...WEB BASED MANAGEMENT 3 50 ...
Страница 134: ...ADVANCED TOPICS 4 10 ...
Страница 138: ...TROUBLESHOOTING A 4 ...
Страница 142: ...PIN ASSIGNMENTS B 4 ...
Страница 150: ...INDEX Index 4 ...
Страница 151: ......