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Omni Switch/Router 2
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Omni Switch/Router 1
FDDI Backbone
Device D
IP
Device A
IPX
Slot 3 Port 1
Device Source Port VLAN Membership
A 3-1 2
B 2-1 2
C 2-2 3
D 3-1 3
Device Source Port VLAN Membership
A 2-1 2
B 3-1 2
C 3-1 3
D 2-2 3
Group 1
Slot 2 Port 1
Device B
IPX
Device C
IP
Slot 2 Port 2Slot 3 Port 1
All traffic entering switch 1 from the backbone
port, port 3-1, is checked against switch 1’s poli-
cies for VLAN membership in the Group(s) being
trunked. In this example only Group 1 is being
trunked, so traffic is checked against the VLAN
policies defined for Group 1’s VLANs. If you want
devices from switch 2 included in switch 1’s
VLANs, you must define policies on switch 1 that
will so include them. In this example, an IPX pol-
icy was defined for VLAN 2 and
an IP policy was
defined for VLAN 3.
Group 1
Slot 2 Port 1
All traffic entering switch 2
from the backbone port, port 3-1, is
checked against switch 2’s policies for
VLAN
membership in the Group(s) being trunked. In
this example only Group 1 is being trunked, so
traffic is checked against the VLAN policies
defined for Group 1’s VLANs. If you want devices
from switch 1 included in switch 2’s VLANs, you
must define policies on switch 2 that will so
include them. In this example, an IPX policy was
defined for VLAN 2 and an IP policy was defined
for VLAN 3.
An Example of VLAN Assignment Using Logical Policies and
Current Port Policy Functionality (
reg_port_rule = 0)
VLAN 3
Port rule: 3-1
Protocol rule:
IP
(assigns devices C & D)
(assigns no devices)
VLAN 2
Port rule: 3-1
Protocol rule:
IPX
(assigns devices A & B)
(assigns no devices)
VLAN 3
Port rule: 3-1
Protocol rule:
IP
(assigns devices C & D)
(assigns no devices)
VLAN 2
Port rule: 3-1
Protocol rule:
IPX
(assigns devices A & B)
(assigns no devices)
Slot 2 Port 2
Because the back-
bone port, port 3-
1, is assigned to
VLANs 2 and 3 in
switch 1 via a port
policy, traffic can
flow out of these
VLANs onto the
backbone.
Because the back-
bone port, port 3-
1, is assigned to
VLANs 2 and 3 in
switch 2 via a port
policy, traffic can
flow out of these
VLANs onto the
backbone.