146
NE2552E Application Guide for ENOS 8.4
Example: Multiple VLANs with Tagging Adapters
Figure 8.
Multiple
VLANs
with
VLAN
‐
Tagged
Gigabit
Adapters
The
features
of
this
VLAN
are
described
in
the
following
table:
Component
Description
Switch
This
switch
is
configured
for
three
VLANs
that
represent
three
different
IP
subnets.
Two
servers
and
five
clients
are
attached
to
the
switch.
Server
#1
This
server
is
a
member
of
VLAN 3
and
has
presence
in
only
one
IP
subnet.
The
associated
internal
switch
port
is
only
a
member
of
VLAN
3,
so
tagging
is
disabled.
Server
#2
This
high
‐
use
server
needs
to
be
accessed
from
all
VLANs
and
IP
subnets.
The
server
has
a
VLAN
‐
tagging
adapter
installed
with
VLAN
tagging
turned
on.
The
adapter
is
attached
to
one
of
the
internal
switch
ports,
that
is
a
member
of
VLANs 1, 2,
and 3,
and
has
tagging
enabled.
Because
of
the
VLAN
tagging
capabilities
of
both
the
adapter
and
the
switch,
the
server
is
able
to
communicate
on
all
three
IP
subnets
in
this
network.
Broadcast
separation
between
all
three
VLANs
and
subnets,
however,
is
maintained.
PCs
#1
and
#2
These
PCs
are
attached
to
a
shared
media
hub
that
is
then
connected
to
the
switch.
They
belong
to
VLAN 2
and
are
logically
in
the
same
IP
subnet
as
Server 2
and
PC 5.
The
associated
external
switch
port
has
tagging
disabled.
PC
#3
A
member
of
VLAN 1,
this
PC
can
only
communicate
with
Server 2
and
PC 5.
The
associated
external
switch
port
has
tagging
disabled.
GbE
Switch Module
Switch Module
GbE
VLAN #1, 2, 3
VLAN #3
Server #1
Server #2
Gigabit/Tagged
adapter
Shared Media
PC #1
VLAN #2
PC #2
VLAN #2
PC #3
VLAN #1
PC #4
VLAN #3
PC #5
VLAN #1 & #2
Summary of Contents for ThinkSystem NE2552E
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