1-15
Static Virtual LANs (VLANs)
VLAN Operating Rules
tagged member must have the same VID as that carried by the inbound,
tagged packets generated on that VLAN.)
Figure 1-8. Tagged VLAN Operation
See also “Multiple VLAN Considerations” on page 1-17.
Caution Rate-limiting may behave unpredictably on a VLAN if the VLAN spans
multiple modules or port-banks. This also applies if a port on a different
module or port-bank is added to an existing VLAN. HP does not recommend
configuring rate-limiting on VLANs that include ports spanning modules or
port-banks.
In figure 1-9 ports 2, 3, and 24 form one VLAN. The ports are in the same port-
bank, which includes ports 1 through 24. Ports 28, 29, and 32 form a second
VLAN. These ports are also in the same port-bank, which includes ports 25
through 48. Rate-limiting will operate as expected for these VLANs.
Yes
Port “X” receives
an inbound,
tagged Packet
From VLAN “A”.
Is port
“X” a tagged
member of
VLAN “A”?
No
Forward the
packet to any port
“Y” on VLAN “A”
for outbound
transmission.
Drop the
packet.
Note that the outbound
port can be either a
tagged or untagged
member of the VLAN.
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