Download Configuration Note 3020 Ver. C (7/98)

Octel
Overture
Server
Configuration Note 3020 Ver. C (7/98)
Digital Networking
1.0 DIGITAL NETWORKING OVERVIEW
Digital Networking uses the existing
customer’s LAN to deliver voice and
fax messages
Digital Networking allows for the delivery of voice and fax messages
over an existing LAN/WAN network using TCP/IP protocols between
Octel Overture 250/350 Message Servers. Digital Networking works
with existing OctelNet and AMIS features to allow for a complete
networking solution.
Digital Networking ensures the quality of voice messaging by
transmitting the message in its digitally encoded format.
Transmitting messages digitally is significantly faster than traditional
analog networking,
Note: WAN network technologies and speed directly impact
transmission times.
Disclaimer: Configuration Notes are designed to be a general guide reflecting AVAYA Inc.’s experience configuring its systems.
These notes cannot anticipate every configuration possibility given the inherent variations in all hardware and software
products. Please understand that you may experience a problem not detailed in a Configuration Note. If so, please notify the
TAC/TSO at (408) 922-1822 and if appropriate we will include it in our next revision. AVAYA Inc. accepts no responsibility for
errors or omissions contained herein.
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2.0 OCTEL OVERTURE 250/350 ORDERING INFORMATION
• LAN Card
The new LAN card connects the 250/350 voice server to an existing
802.3-framed Ethernet LAN using TCP/IP protocols. The LAN card
connects to the LAN via an AUI (Attachment Unit Interface) DB-15
pin connector, on the card front of the 250 and via the distribution
panel for the 350.
Voice server requirements
Depending on the server configuration the card is installed in the slot
listed below:
250 single cabinet slot 8
250 dual cabinet slot 16
350 nonredundant 1 or 2 cabinet servers slot 5
350 redundant servers slot 19
2.1 OCTEL OVERTURE SERVER SOFTWARE REQUIREMENTS
• Minimum Software: Aria Release 2.0 or above
• Feature bit 44- Networking
• Feature bit 73- Connectivity
• Feature bit 74- Digital Networking
NOTE: For any two servers to use Digital Networking both servers must
have Digital Networking software, and must be at a software
level equal to or greater than Aria 2.0.
3.0 CUSTOMER PROVIDED NETWORK REQUIREMENTS
Requirements for LAN
connectivity
ISO OSI Model
• Layer 1
Transceiver or AUI port on HUB
• Layer 2
IEEE 802.3 Compliant Network
• Layer 3 & 4
TCP/IP router
NOTES: The LAN-to-WAN connectivity will be the responsibility of
the customer. A MAC Layer Bridge can be used in lieu of a router,
by ensuring the network portion of the address is identical.
The above information is provided by AVAYA Inc. as a guideline. See disclaimer on page 1
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Voice server Digital Networking
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4.0 VOICE SERVER & DIGITAL NETWORKING
CONNECTIONS
The Octel Overture 250/350 LAN card provides an AUI interface to the
Ethernet. In order to match the cabling media utilized in the customers’
network a Transceiver might be needed. Transceivers are small
connectors that have a DB-15 AUI connector on one end and a 10BaseT or
BNC connector on the other.
Ethernet common cabling media:
1.
Twisted-Pair RJ-45 (10 BaseT)
2.
Thin COAX (10 Base2)
3.
Thick COAX (10 Base5)
Note: Octel does not provide or recommend transceivers. Most
Companies have standardized on transceivers and network interface cards.
Overture 250/350
AUI DB-15
Connector
LAN
Card
LAN
802.3-Framed
Ethernet
Customer Provided
Transceiver
The above information is provided by AVAYA Inc. as a guideline. See disclaimer on page 1
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5.0 DIGITAL NETWORKING QUALIFICATION
Digital Networking Qualification
Question may arise during the sales cycle regarding the following:
1. Does the customer’s hardware meet the following requirements:

TCP/IP LAN/WAN Installed

Available bandwidth to add voice message traffic.
Digital Networking will introduce additional traffic on a customer’s
enterprise wide network. Remember 4 minutes of voice messaging is the
equivalent of 1MB of data.
Overture servers with Aria software digitize voice at a maximum rate of
approximately 24K bits per second. To digitally network voice and fax
messages, approximately 33% is added to this figure, to account for the
protocol overhead. This results in 32Kbps, or 240KB of data per minute
of voice.
1. Will the customer use fax applications?
2. What are the security requirements?
Octel messages are transported in their SBC (Sub Band Coding) format.
As such it would be impossible to recreate the message and listen to it by
capturing the data stream.
6.0 CONFIGURING DIGITAL NETWORKING ON ARIA
SERVERS
Configuring Digital Networking in
the Voice Server
The following is an overview of steps required to configure the Voice
Server for Digital Networking. For detailed installation information, refer
to the System Manager Guide.
Menu 15.1.2 - Specify System Parameters for Digital Networking
 Digital Networking 0-Enabled, 1- Disabled messages returned if no
fallback, 2- Disabled; messages retained
Note: for options 1 and 2, both outbound and inbound digital traffic
stop.
 Configure maximum digital connections between 1 and 16
16
 Configure maximum outgoing digital connections between 1 and 16
12
Note: Maximum outgoing connections is a site specific parameter.
 Network Messaging Retry Schedules
The above information is provided by AVAYA Inc. as a guideline. See disclaimer on page 1
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 Application Window Size
2
Note: Used to throttle traffic delivered from the voice server to the
LAN, leave at 2.
Menu 22 configure the Voice Server for the LAN.
 Menu 22.1 enter This Server’s IP Address.
Note: this is a four byte decimal address supplied by the LAN
administrator. This Servers’ IP Address: and IP Net Mask: fields do
not become active until the next upload takes place. This can be
accomplished with a system reboot, LAN card reset, or LAN card
hot-plug.
 Menu 22.1 enter the IP Net Mask
Note: Most LAN administrators know this as the subnet mask.
Traffic is routed to a host by looking at the network and subnet part of
its IP address. Class A, B, or C network part has a fixed size. But
organizations can choose their own subnet field sizes. Hosts and
routers identify this segmentation by the subnet part of the address.
 Menu 22.2 enter the Gateway IP Address
Note: This it the IP address of the router that the Octel Overture 350
will use to transmit network messages to systems that are not on the
same network.
 Menu 22.3 sets the SNMP manager IP address for specific SNMP
events. This address is available from the LAN administrator.
Menu 15.1.3 Node Profile has changed to support fields required for
digital networking, they include:
 Node Type: 2-Octel Digital
 IP Address:
Note: The IP address of the destination Overture 250/350 server.
 Fallback: 1- OctelNet Analog
Note: 0 - Disabled for Aria Domain.
Note: There are 2 ways for a digital node in analog fallback mode to
revert to digital networking. Network queue empties out, or manually
change the node type from digital to analog and then back to digital.
 Play Node Name: Y/N
Note: Yes for digital networking, No for Aria Domain.
The above information is provided by AVAYA Inc. as a guideline. See disclaimer on page 1
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7.0 TESTING AND TROUBLESHOOTING THE INSTALLATION
Verify the programming with these
test steps
The PING (Packet Internet Groper) utility verifies that the LAN card is
operating correctly, and verifies low level connectivity to the router and
remote hosts. The Echo Test utility provides further testing capability if
the network has another Octel Overture 250/350 with Aria 2.0 and a LAN
card installed and configured. Both utilities are provided in the LAN
utilities menu 20.
The PING utility is a standard TCP/IP network utility that uses ICMP
protocol to determine whether the host at a specified IP address is
responding. It does not test any function within the host beyond the host’s
attachment to the LAN. It does not provide round-trip times or throughput
data.
The PING utility can test any IP address; the destination address does not
have to be another Octel Overture 250/350. It sends 64 byte packets
including an ICMP header, to the specified IP address.
The Echo test is also used to check whether systems are active. The
system to which the echo test is sent must be an Octel Overture 250/350
with Aria 2.0 and a LAN card installed. The echo-test utility provides
round-trip times and throuput data.
Refer to the PING Utility and Echo Test Utility section in the 250/350
maintenance manuals.
Note: The following menus will require higher level of technical support
to interpret the output:
Display API Trace (Menu 20.3)
Digital Networking Trace (Menu 20.5)
NIC Trace/Profile/Error Log (Menu 20.7)
Reset NIC and NIC API (Menu 20.8)
The above information is provided by AVAYA Inc. as a guideline. See disclaimer on page 1
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8.0 CONSIDERATIONS
8.1 Messages that are CVSD encoded will not be sent using digital
networking. CVSD messages could be on systems that had converted
from older Aspen systems to 250/350 server.
8.2 DLC support: If messages that were converted from an Aspen,
Branch, or Maxum are transmitted digitally from another server to this
Octel Overture 350, these messages can be played through UDLC
cards but not through DLC cards. An AOI (area of interest) error
occurs every time the server tries to play these messages through
DLCs. To be played using DLCs, these messages must be sent through
analog telephone lines for re-recording at this server.
©2002 AVAYA Inc. All rights reserved. All trademarks identified by the ®, SM and TM are registered
trademarks, servicemarks or trademarks respectively. All other trademarks are properties of their respective
owners. The above information is based on knowledge available at the time of publication and is subject to
change without notice. Printed in U.S.A.
AVAYA
911 Murphy Ranch Road
Milpitas, CA 95035-7912
(408) 577-7000
http://www.avaya.com
The above information is provided by AVAYA Inc. as a guideline. See disclaimer on page 1
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