Bay Networks Marlin Manual

ISSUE 4.0 MAN-MARLIN-BRIDGE-ADDENDUM
MARLIN BRIDGE
ADDENDUM
Issue 4.0
All rights reserved. This document may not be in whole or in part copied,
photocopied, reproduced, translated or reduced to any electronic medium or machine-
readable form without the prior written permission of Bay Networks Inc.
The information contained in this manual is believed to be accurate. However, no
responsibility whatsoever is assumed by Bay Networks Inc. for its use, nor for any
infringements of patents or other rights of third parties resulting from its use.
All trade marks are acknowledged.
1996 Scorpion Logic Ltd. A Bay Networks company

MAN-MARLIN-BRIDGE-ADDENDUM ISSUE 4.0

ADDENDUM
Page 1
1. INTRODUCTION
The purpose of this addendum is to document the changes introduced between
Release 3 and Release 4 software. This addendum should be read in conjunction
with the Marlin Bridge Reference Manual Issue 3.0 to provide a full description of
the configuration and operation of the Marlin Bridge.
2. REFERENCE
The new features that have been added to the bridge Release 4.xx software that
have resulted in management system screen changes are:
• support for the PRI (Primary Rate Interface) ISDN TA
• non propagation of Banyan Vines routing packets to a ‘stub’ network
• static ARP for enhanced security
• restricted SAP learning mode for large Novell IPX networks
• enhanced TA configuration and information screens
• support for the integral U interface North American BRI ISDN TA
The sections listed below have been updated to reflect the changes to the
management screens.
• Port Management
• General Bridging Parameters
• Static ARP Configuration
• IPX SAP Filter Configuration
• ISDN TA Configuration
Information regarding the changes is detailed in the following pages.

ADDENDUM
Page 2
2.1 PORT MANAGEMENT
The port configuration screen displays a list of ports; LAN, WAN and ISDN that
have been detected by the unit. This screen is accessed by typing CO PO at the
command prompt.
N.MAR.mmm SYSTEM NAME PORT CONFIGURATION
___________________________________________________________________________________
Page No. m of n
No. Name Type Phys. Rx(%) Tx(%) LZC(/) State
LAN1 LAN Port No. 1ETHERNET CSMA/CD 02.4 00.0 UP
[WAN1 HDLC Link 1BRIDGE HDLC X.21 00.2 01.8 4.5 UP ]
ISDN1 TA Link 1BRIDGE TA ISDN 00.2 02.9 2.6 UP
ISDN2 TA Link 2 BRIDGE TA ISDN 58.7 12.6 3.8 UP
ISDN3 TA Link 3BRIDGE TA ISDN 00.0 00.0 DOWN
ISDN4 TA Link 4 BRIDGE TA ISDN 00.0 00.0 DOWN
ISDN5 TA Link 5 BRIDGE TA ISDN 00.0 00.0 DOWN
ISDN6 TA Link 6BRIDGE TA ISDN 00.0 00.0 DOWN
ISDN7 TA Link 7BRIDGE TA ISDN 00.0 00.0 DOWN
ISDN8 TA Link 8BRIDGE TA ISDN 00.0 00.0 DOWN
EDIT - Edit Port TYPE -Change Port Type
___________________________________________________________________________________
^G - Main Menu
^L - Prev Menu
___________________________________________________________________________________
(co po) Enter command :
Figure 2.1 Ports List Screen
If a PRI TA is installed in the unit, it will be automatically detected and the
appropriate number of ports supported by the TA will be displayed in addition to
any other ports on the unit. The number of ports is dependant on the quantity of
channels for which the PRI TA has been keyed, in addition, not all of the keyed
ports may have been activated. See section 2.3 TA CONFIGURATION for further
details.

ADDENDUM
Page 3
2.2 BRIDGE CONFIGURATION
The Bridge Configuration menu is accessed by typing CO BR at the command
line prompt.
N.MAR.mmm SYSTEM NAME BRIDGE CONFIGURATION
___________________________________________________________________________________
PARAM - General Bridging Parameters
STP - Spanning Tree Configuration
ADDRESS - Address Filter Table
TYPE - Type Filter Table
ARP - Static ARP Table
SAP - IPX SAP Filter
___________________________________________________________________________________
^G - Main Menu
^L - Prev Menu
___________________________________________________________________________________
(co br) Enter command :
Figure 2.2 Bridge Configuration Screen
The menu now has two additional menu items, these are described below:
ARP Access the Static ARP configuration form.
SAP Specify Restricted SAP filters.

ADDENDUM
Page 4
2.2.1 GENERAL BRIDGING PARAMETERS
This configuration menu is reached by typing CO BR PAR at the command line.
N.MAR.mmm SYSTEM NAME GENERAL BRIDGING PARAMETERS
___________________________________________________________________________________
Ageing Time(Sec) : 660
Learning : ENABLE
Action on Match : FORWARD
Filter Multicast : DISABLE
Type Matching : DISABLE
Unmatched Type Action : FORWARD
Learn Src on Multicast: ENABLE
Learn Novell 802.3 : DISABLE
Learn Novell Ethernet2: DISABLE
Learn Novell 802.2 : DISABLE
Learn Banyan : STUB
Strip Novell RIP/SAP : DISABLE
PC Anywhere over IPX : DISABLE
MS WINS Server : DISABLE
___________________________________________________________________________________
^G - Main Menu
^E - Submit ^L - Prev Menu
___________________________________________________________________________________
Figure 2.3 General Bridging Parameters Entry Form
The only difference to the General Bridging Parameters form is that the ‘Learn
Banyan’ parameter has an additional option.
Learn Banyan ENABLE allows the bridge to learn the Banyan Vines
network topology and add router and server information to
the Autocall table. STUB performs the same learning process
as the previous option but in addition inhibits the Banyan
routing updates (RTP) from being forwarded to any
WAN/ISDN port. In this mode of operation the RTP
broadcasts will still be sent out on the LAN port as normal.

ADDENDUM
Page 5
2.2.2 STATIC ARP
The Static ARP list is obtained by typing CO BR ARP at the command line
prompt.
N.MAR.mmm SYSTEM NAME STATIC ARP LIST
___________________________________________________________________________________
Page No. n of m
IP Address MAC Address
1.1.1.1 222222222222
EDIT - Edit Entry ADD - Add Entry DELETE - Delete Entry
___________________________________________________________________________________
^G - Main Menu
^L - Prev Menu
___________________________________________________________________________________
(co br arp) Enter command :
Figure 2.4 Static ARP Screen
Use of the Static ARP option restricts remote access to the management system
from either the LAN or a WAN/ISDN port. If an entry is present in the table, then
responses to ARP requests will only be sent to those devices whose IP address
appears in the table. This feature is disabled if the table is empty and ARP
responses will be sent for all valid ARP requests.
To either ADD or EDIT an entry, enter the IP Address and MAC Address in the
form.
IP Address Responses to ARP requests from this host IP address will be
sent.
MAC
Address The MAC address associated with the IP address.

ADDENDUM
Page 6
2.2.3 SAP FILTERS
The SAP Filter list is obtained by typing CO BR SAP from the command line
prompt.
N.MAR.mmm SYSTEM NAME SAP FILTERS
___________________________________________________________________________________
Page No. n of m
Name
Server*
ADD <name> - Add filter DELETE - Delete filter
___________________________________________________________________________________
^G - Main Menu
^L - Prev Menu
___________________________________________________________________________________
(co br sap) Enter command :
Figure 2.5 SAP Filters Screen
Large Novell IPX networks can contain many servers and services which are
continually advertised via the Service Advertising Protocol (SAP). IPX routing
information is also advertised, via the Routing Information Protocol (RIP). When
any of the ‘Learn Novell’ options are enabled in the CO BR PAR screen, the
received SAPs and RIPs are examined and automatically converted into Autocall
entries. It is therefore possible, in a large Novell network, to fill up the Autocall
table before the required entries have been learned. By specifying a server/service
name in the SAP Filter table, only those SAPs and their associated RIP entries will
be created in the Autocall table.
To either ADD or EDIT an entry, enter the IP Address and MAC Address in the
form.

ADDENDUM
Page 7
Name The server or service for which SAP and RIP entries should
be learned. The * wildcard character can be used instead of
one or multiple characters in the name. The wildcard must be
the last character in the name string. In the example above
the entry Server* will learn all SAPs starting with the string
‘Server’ e.g. Server1, ServerB, Server-Accounts.

ADDENDUM
Page 8
2.3 ISDN CONFIGURATION
The ISDN Bridge configuration menu is accessed by typing CO ISDN at the
command line prompt.
N.MAR.mmm SYSTEM NAME ISDN BRIDGE CONFIGURATION
___________________________________________________________________________________
AUTHORISE - Remote Bridge Authorisation
AUTOCALL - ISDN Automatic Calls
BANDS - ISDN Time Bands
NUMBERS - ISDN Numbers
CLI - ISDN Calling Line Id
WINS - MS TCP-32 WINS
TA - Installed TAs
___________________________________________________________________________________
^G - Main Menu
^L - Prev Menu
___________________________________________________________________________________
(co isdn) Enter command :
Figure 2.6 ISDN Configuration Screen
Parameters associated with the physical configuration of the ISDN Terminal
Adaptor have been moved from the Port list to the TA form on this menu.
TA Display the list of installed TAs and optionally edit their
parameters.