System information

 Tunnel and Non-Tunnel Modes
Unified System Deployment
Tunnel & Non-Tunnel Modes
 Advantages and Disadvantages
VLAN Forwarding L3 Tunneling
Advantage
•
Easier Unified Switch
•
Better centralized policy with
Advantage
Easier Unified Switch
configuration
• Save more bandwidth in
Overlay topology
Better centralized policy with
ACL, QoS, DHCP Server, etc
• Transparent to customer
network (no ‘VLAN
explosion
’
issue
explosion issue
Disadvantage • May not use advanced
features, such as ACL, QoS,
DHCP Server, etc on the
U ifi d S it h i O l
• More complicated Unified
Switch configuration
• May consume more
bdidth i O l
U
n
ifi
e
d S
w
it
c
h i
n
O
ver
l
ay
topology
• ‘VLAN explosion’ issue –
setting up VLAN membership
l tk
b
an
d
w
idth i
n
O
ver
l
ay
topology
across
l
arge ne
t
wor
k
requires huge effort
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