Alcatel Omni Switch/Router, Руководство пользователя

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Page 29-1
29 Managing Frame Relay
The
WAN
Switching Module (
WSX
) family supports Frame Relay on universal serial, T1 or E1
ports. Management, data handling, compression, and multi-protocol encapsulation are
compatible with current Frame Relay standards, such as
RFC 1490
and
FRF.9
. The
WSX
supports all three major
DLCMI
management protocols.
WSX
frame relay extends the power and flexibility of
LAN
switching over large geographic
distances using a Frame Relay network or a leased line, such as a
T1
. In a Frame Relay
network configuration, the
WSX
provides a cost effective link supporting multiple virtual
circuits. In a leased line configuration, the
WSX
provides dedicated bandwidth to a single
remote site.
VLAN
architectures are preserved and consistent on both sides of a
WAN
link. The
WSX
supports frame relay trunking, so
VLAN
Groups on one side of a Frame Relay link are compat-
ible with those on the other side. In addition, the
WSX
is capable of Frame Relay IP and IPX
routing and complies with Inverse Address Resolution Protocol (In
ARP
)
RFC 1293
.
In a typical configuration, the
WSX
occupies one slot in an Omni Switch/Router. Since it is
compatible with Omni Switch/Router any-to-any switching and
VLAN
architecture, you can
switch other topologies in the
LAN
to Frame Relay. The following diagram shows a typical
WSX
setup using a 56 Kbps Frame Relay line (up to 2 Mbps access rates are supported).
Typical WSX Frame Relay Setup Using Serial Ports
F F F Frrrra a a am m m me e e e R R R Re e e elllla a a ay y y y
N N
N Ne
e
e ettttw
w
w wo
o
o orrrrk
k
k k
WSX
5 5
5 56
6
6 6 K
K
K Kb
b
b bp
p
p ps
s
s s L
L
L Liiiin
n
n ne
e
e e
S S S Se e e errrriiiia a a allll
D D D DS S S SU U U U////C C C CS S S SU U U U
D D D DT T T TE E E E----D D D DC C C CE E E E C C C Ca a a ab b b blllle e e e
O O
O Om
m
m mn
n
n niiii S
S
S Sw
w
w wiiiittttc
c
c ch
h
h h////R
R
R Ro
o
o ou
u
u utttte
e
e errrr