Avaya Partner Advanced Communications System 1600 Dsl Module User Guide

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D. USI Cables
DTE or DCE?
A Data Terminal Equipment (DTE) device transmits data on
the transmit pin and receives data on the receive pin, while a
Data Communication Equipment (DCE) device transmits
data on the receive pin and receives data on the transmit pin.
Usually, the DCE device supplies the transmit clock timing for
both the DTE and DCE devices.
You must use a straight through cable to connect a DTE to a
DCE device.  However, you must use a null modem cross
over cable to connect two DTE devices or two DCE devices.
For example, the serial port on a PC is a DTE device, while
most modems are DCE devices.  To connect a PC to a
modem, you use a straight through cable.  To connect two
PCs together, you use a null modem cross over cable.
Which
Hardware
Protocol?
You can configure the USI port on the PARTNER ACS 1600
DSL module for V.35 or RS-530.  Each of these hardware
interfaces uses different voltage levels, so they are not
compatible electrically.
However, there are other hardware interface standards that
use the same voltage levels, but with different connectors:
RS-449 and V.36 are the same electrical interface as
RS-530.
The DB25 connector, which must be shielded, is wired for RS-
530, which is a superset of all the other hardware interfaces.
Only RS-530 uses DB25 connectors - the other hardware
interfaces use different types of connectors. 
						

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The following figure lists the conversion from the RS-530
DB25 connector to the RS-449 DB37 conversion cable.
Signal RS-530 RS-449
Shield G round 1 1
Transm it Data (A) 2 4
Receive Data (A) 3 6
Request to Send (A) 4 7
Clear to Send (A) 5 9
DCE Ready (A) 6 13
Signal Ground 7 19
Receive Line Signal (A) 8 11
Receive DCE Clock (B) 9 26
Receive Line Signal (B) 10 29
Transmit DTE Clock (B) 11 35
Transmit DCE Clock (B) 12 23
Clear to Send (B) 13 27
Transm it Data (B) 14 22
Transmit DCE Clock (A) 15 5
Receive Data (B) 16 24
Receive DCE Clock (A) 17 8
18
Request to Send (B) 19 25
DTE Ready (A) 20 12
21
DCE Ready (B) 22 31
DTE Ready (B) 23 30
Transmit DTE Clock (A) 24 17
25 
						

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It is your responsibility to obtain the appropriate converter
cables from the DB25 RS-530 pin out to the configured
hardware interface.
The most common RS-530 to V.35 converter cable is
produced by Black Box (part # FA058)
The following figure lists the conversion from the RS-530
DB25 connector to the V.35 conversion cable.
Signal RS-530V.35
Shield Ground 1
A
Transmit Data (A) 2 P
Receive Data (A) 3 R
Request to Send (A) 4 C
Clear to Send (A) 5 D
DCE Ready (A) 6 E
Signal Ground 7 B
Receive Line Signal (A) 8 F
Receive DCE Clock (B) 9 X
Receive Line Signal (B) 10
Transmit DTE Clock (B) 11 W
Transmit DCE Clock (B) 12
AA
Clear to Send (B) 13
Transmit Data (B) 14 S
Transmit DCE Clock (A) 15 Y
Receive Data (B) 16 T
Receive DCE Clock (A) 17 V
18
Request to Send (B) 19
DTE Ready (A) 20 H
21
DCE Ready (B) 22
DTE Ready (B) 23
Transmit DTE Clock (A) 24 U
25 
						

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E. IP Filtering
The following assumes that you have a working knowledge of
IP protocols.
Filtering executes on the WAN port that you select.  There are
two different sets of filters and each filter maintains its own
statistics:
Input - Input packets are filtered after the network
address translation.
Output - Output packets are filtered before the network
address translation.
The maximum total number of filters is 128.
Packets pass through the appropriate set of filters in the order
in which the filters display in the list shown on the user
interface (Configure IP Router > Configure IP Filtering >
Display all filters of the chosen type).  Each packet moves
down the list of filters until it reaches the end or the attributes
of an active filter match the packet.
When a match occurs, the packet is then processed
according to the action field (Pass or Discard) of the first filter
that matched the packet:
Pass - packet passed to the next level.
Discard - packet discarded.  When output packets are
dropped, RTCS_OK is returned from IP_route.
When you create a new filter, all fields are set to an inactive
state.  An inactive filter passes all IP packets - you must
modify at least one field to narrow the range of packets to
pass or change the action to discard all packets.
To create a set of filters to pass only certain types of packets,
you need to create a default filter that discards all packets and
then insert narrower filters before the default filter.  For
example, you need to add a filter to cover each range of
packets.
If you want to select only the packet ranges to discard, then
there is no default filter needed, because the default action is
to pass all packets.  You only have to add filters that set the
range to discard and set the actions of those filters to discard.
The order of the filters matters if you are mixing filters with
different actions or if you want the overlapping filters to display
accurate statistics. 
						

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Glossary
10/100BaseT10-Mbps baseband Ethernet specification that uses
two pairs of twisted-pair cabling: one pair for
transmitting data and the other for receiving data.
10/100BaseT has a distance limit of approximately
100 meters per segment.
100BaseT100-Mbps baseband Fast Ethernet specification that
uses UTP wiring.  Like 10/100BaseT, 100BaseT
sends link pulses over the network segment when
no traffic is present.  These link pulses contain more
information than those used in 10/100BaseT.
ADSLAsymmetric Digital Subscriber Line.
ARPAddress Resolution Protocol.  Enables routers to
obtain the Ethernet address for a known IP address.
See also Inverse ARP.
ATMAsynchronous Transfer Mode.
BOOTPBootstrap Protocol.  Used during network booting by
a network node to determine the IP address of its
Ethernet interfaces.
DLCIData-Link Connection Identifier.  Value that specifies
a PVC or SVC in a Frame Relay network.  In the
basic Frame Relay specification, DLCIs are locally
significant (connected devices might use different
values to specify the same connection).  In the LMI
extended specification, DLCIs are globally significant
(DLCIs specify individual end devices).
E1Network connection with a capacity of 2.048, divided
into 32 separate channels (or DS0s).
EEPROMElectrically Erasable Programmable read only
Memory.  Nonvolatile memory chips that can be
erased using electrical signals and reprogrammed.
Ethernet  Physical connection commonly used for LANs.
Runs over a variety of cable types and provides
bandwidth of 10 Mbps. Invented by Xerox
Corporation and developed jointly by Xerox, Intel,
and Digital Equipment Corporation.
Fast EthernetAny of a number of 100 Mbps Ethernet
specifications.
Frame Relaya network interface providing high-speed packet
transmission with minimum delay.  Uses variable-
length packets called frames.”  Contrast with
packet. 
						

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Full DuplexCapable of handling simultaneous data transmission
between a sending station and a receiving station.
ICMPInternet Control Message Protocol.  Internet protocol
that reports errors and provides other information
relevant to IP packet processing, such as routing
information.
Inverse ARPInverse Address Resolution Protocol.  Enables
routers to obtain the IP address of a known Ethernet
address of a device associated with a virtual circuit.
Method of building dynamic routes in a network.
IPInternet Protocol.  Part of the TCP/IP protocol.  IP
networks are connectionless, packet switching
networks.
IP address32-bit address assigned to hosts using TCP/IP.  An
IP address contains four octets separated by
periods, also known as a dotted quad address.
Each address consists of a network number, an
optional sub-network number, and a host number.
The network and sub-network numbers together are
used for routing, while the host number is used to
address an individual host within the network or sub-
network.
IP SNAPSub-network Access Protocol.  Internet protocol that
operates between a network entity in the sub-
network and a network entity in the end system.
SNAP specifies a standard method of encapsulating
IP datagrams and ARP messages on IEEE
networks.  The SNAP entity in the end system
makes use of the services of the sub-network and
performs three essential functions: data transfer,
connection management, and QOS selection.
LANLocal Area Network.  Privately owned network-
connecting devices over a limited geographic area.
May use TCP/IP or one of several other protocols. 
						

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LMILocal Management Interface.  a set of the following
enhancements to the basic Frame Relay
specification.  Called “LMT” in ANSI terminology.
a keep-alive mechanism that verifies that data is
flowing.
a multi-cast mechanism, which provides the network
server with its local DLCI and the multi-cast
DLCI.
Global addressing; this gives DLCIs global rather
than local significance in Frame Relay networks.
a mechanism that provides an on-going status report
on the DLCIs known to the switch.
MACMedia Access Control.  Lower of the two sub-layers
of the data link layer defined by the IEEE.
MAC addressStandardized data link layer address that is required
for every port or device that connects to a LAN.
Other devices in the network use these addresses to
locate specific ports in the network and to create and
update routing tables and data structures.  MAC
addresses are six bytes long and are IEEE-
controlled.  Also known as a hardware address, a
MAC-layer address, or a physical address.
MPEGMoving Pictures Expert Group.
OSI Reference
ModelNetwork architectural model developed by ISO and
ITU-T.  The model consists of the following seven
layers, each of which specifies particular network
functions.
The lowest layer is closest to the media technology,
and the highest layer is closest to the user.  The
hardware and software implement the lower two
layers, while only the software implements the upper
five layers.
Physical layer - the actual wires and connections in
the network.
Data link layer – responsible for physical
addressing, network topology, error notification,
and ordered delivery.
Network layer – responsible for connectivity, path
selection, and routing.
Transport layer – responsible for network
communication, virtual circuit management, fault
detection, and flow control.
Session layer - manages sessions between
applications. 
						

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Presentation layer – responsible for data structures
used by networked applications.
Application layer - networked software applications
such as e-mail, Telnet, and ftp.
PacketLogical grouping of information that includes a
header containing control information and (usually)
user data.  Packets refer to network layer units of
data, with messages divided into several packets.
Some networks use fixed packet sizes; others use
variable packet sizes.  Packets typically have
standard header information that identifies the
packet.  In contrast, frames contain only data;
information about the frames transmits on the
control plane.
The terms datagram, frame, message, and segment
describe logical information groupings at various
layers of the OSI reference model and in various
technology circles.
PPPPoint-to-Point Protocol.  a successor to SLIP that
provides router-to-router and host-to-network
connections over synchronous and asynchronous
circuits.
Poisoned
ReverseRIP feature to sets routes learned on the same port
as the transmitted RIP message an infinite distance.
Prevents the propagation of routes from crashed
routers through the network.
PVCPermanent Virtual Circuit.  PVCs save bandwidth
associated with circuit establishment and tear down
in situations where certain virtual circuits must exist
all the time.
RIPRouting Information Protocol.  Internet protocol used
to exchange routing information within a system.
RIP uses hop count as a routing metric.
RouterNetwork layer device that uses one or more metrics
to determine the optimal path to forward network
traffic.  Routers forward packets from one network to
another based on network layer information.  a
router may connect networks using various protocols
by encapsulating data within another networks
packet format or by removing layers of packet
formatting.
SNMPSimple Network Management Protocol.  Network
management protocol used in TCP/IP networks.
SNMP provides a way to monitor and control
network devices, and to manage configurations,
Statistics collection, performance, and security.
Subnet Mask32-bit address mask that indicates the bits of an IP
address used for the subnet address. 
						

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SVCSwitched Virtual Circuit.  Virtual circuit that is
dynamically established on demand and is torn
down when transmission is complete.
T1Network connection with a capacity of 1.544 Mbps,
divided into 24 separate channels (or DS0s).
TCP/IPProtocols used for IP networks, such as the Internet,
intranets, and many LANs.  IP networks are
connectionless, packet switching networks.
TFTPTrivial File Transfer Protocol.  Simplified version of
FTP that transfers files from one computer to
another over a network.
WANWide Area Network.  Data communications network
that serves users across a broad geographic area
and often uses transmission devices provided by
common carriers.  Frame Relay is an example of a
WAN. 
						

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Index
10
10/100BaseT, 184
100BaseT, 184
10BaseT ETHERNET,
176
specifications, 176
A
ACOS
upgrading, 87
upgrading using
TELNET, 89
upgrading using
TFTP, 87
Add a Static Route, 21
Add Interworking
Connection, 53
Add/Change Default
Route, 21
Add/Remove a Static
Route, 21
Add a Static Route,
21
Add/Change Default
Route, 21
Configure DHCP
Client, 23
Configure DNS
Client, 23
Display Route Table,
22
Remove a Route, 21
Remove the Default
Route, 22
Adding a default route,
126
Adding a DLCI, 106
Adding a PVC, 99Adding a static route,
125
ADSL, 184
ARP, 184
ATM, 184
ATM options
configuring, 102
ATM PVCs
configuring, 98
Auto Log off, 11
Avaya Help Line, 156
B
BOOTP, 184
Bridge aging timer
setting, 135
Bridge configuration
Disabling RIP
poisoned reverse,
136
enabling bridging,
133
Enabling STP, 138
Setting the bridge
aging timer, 135
Bridging
diabling, 127
disabling by port, 128
disabling globally,
127
Enable/Disable by
port, 31
enabling, 133
enabling by port, 134
enabling globally, 133
C
Call Control Settings
Display IAD State, 73
Ring Test, 72