Part No. 114079 Rev. BFebruary 1997Router Software Version 11.01Site Manager Software Version 5.01 Configuring Interface and Router Redundancy

114079 Rev. B xi Tables Table 2-1. Redundancy Protocol PDU Flow Diagram for Role Bidding ...2-2Table 2-2. Redundancy Protocol PDU F

114079 Rev. B xiii About This Guide Bay Networks ® redundancy services enhance router resilience by enabling a router to recover from either interf

Configuring Interface and Router Redundancyxiv 114079 Rev. B Refer to Configuring Routers for instructions.Make sure that you are running the latest

About This Guide 114079 Rev. B xv vertical line ( | ) Indicates that you enter only one of the parts of the command. The vertical line separates cho

114079 Rev. B xvii Technical Support and Online Services To ensure comprehensive network support to our customers and partners worldwide, Bay Networ

Configuring Interface and Router Redundancyxviii 114079 Rev. B Bay Networks Customer Service If you purchased your Bay Networks product from a distr

Technical Support and Online Services 114079 Rev. B xix Bay Networks Information Services Bay Networks Information Services provide up-to-date suppo

ii 114079 Rev. B4401 Great America Parkway 8 Federal StreetSanta Clara, CA 95054 Billerica, MA 01821 Copyright © 1988–1997 Bay Networks, Inc. All rig

Configuring Interface and Router Redundancyxx 114079 Rev. B Support Source CD This CD-ROM -- sent quarterly to all contracted customers -- is a compl

Technical Support and Online Services 114079 Rev. B xxi InfoFACTS InfoFACTS is the Bay Networks free 24-hour fax-on-demand service. This automated s

114079 Rev. B 1-1 Chapter 1Interface Redundancy Overview Interface redundancy provides backup of one interface by another within a single router. It

Configuring Interface and Router Redundancy1-2 114079 Rev. B Interface Roles Bay Networks interface redundancy software determines which interface in

Interface Redundancy Overview 114079 Rev. B 1-3 During normal data transfer, if the active interface fails, the following interfaces become active,

Configuring Interface and Router Redundancy1-4 114079 Rev. BOnly if the routing/bridging tables are on another slot from the new active interface is t

Interface Redundancy Overview114079 Rev. B 1-5 You find the complete MAC address for the active interface in the interface management information base

114079 Rev. B 2-1 Chapter 2Router Redundancy OverviewRouter redundancy protects a network from the irrecoverable failure of an entire router. You confi

114079 Rev. B iii Bay Networks Software License This Software License shall govern the licensing of all software provided to licensee by Bay Networ

Configuring Interface and Router Redundancy2-2 114079 Rev. BRedundancy ProtocolRouters in a redundancy group all begin in the secondary role. A router

Router Redundancy Overview114079 Rev. B 2-3 After the bidding period times out, the software determines that Router A is the best primary router. Rout

Configuring Interface and Router Redundancy2-4 114079 Rev. BThe primary router periodically monitors itself to make sure it is functioning normally. I

Router Redundancy Overview114079 Rev. B 2-5 Table 2-2. Redundancy Protocol PDU Flow Diagram for SOS PDUsRouter A PDU Router BRouter A, currently the p

Configuring Interface and Router Redundancy2-6 114079 Rev. BRole ChangeA router may change out of the primary role because of router failure, failure

Router Redundancy Overview114079 Rev. B 2-7 With a divisor value of 10, and a retries value of 4, the router takes 2 seconds to detect 4 missed BOFLs

114079 Rev. B 3-1 Chapter 3Implementation NotesThis chapter provides information about special features of Bay Networks interface and router redundanc

Configuring Interface and Router Redundancy3-2 114079 Rev. BWhen planning your network for router redundancy, follow these guidelines:• Determine the

Implementation Notes114079 Rev. B 3-3 Router Redundancy RequirementsAll members of a router redundancy group must • Be the same router type; for examp

iv 114079 Rev. B Bay Networks Software License (continued) 9. Licensee shall not reverse assemble, reverse compile, or in any way reverse engineer

Configuring Interface and Router Redundancy3-4 114079 Rev. BTable 3-1 demonstrates what happens when you configure interface redundancy across slots wh

114079 Rev. B 4-1 Chapter 4Configuring Interface RedundancyThis chapter describes how to configure interface redundancy. It assumes you have read Configu

Configuring Interface and Router Redundancy4-2 114079 Rev. BFigure 4-1. Add Circuit Window2.Select all other available LAN interfaces of the same type

Configuring Interface Redundancy114079 Rev. B 4-3 Figure 4-2. Edit Connector Window7.Select Edit Circuit.The Circuit Definition window opens (Figure 4-

Configuring Interface and Router Redundancy4-4 114079 Rev. BFigure 4-3. Circuit Definition Window8.In the Circuit Definition window, choose Lines > I

Configuring Interface Redundancy114079 Rev. B 4-5 Figure 4-4. Select Primary Window9.Select an interface from the list in the Select Primary window, a

Configuring Interface and Router Redundancy4-6 114079 Rev. B10. Choose File > Exit to exit the Circuit Definition window and return to the Configurat

Configuring Interface Redundancy114079 Rev. B 4-7 Removing Interface Redundancy from a CircuitTo remove interface redundancy from a circuit:1. In the

114079 Rev. B 5-1 Chapter 5Configuring Router RedundancyThis chapter describes how to configure router redundancy. It assumes you have read Configuring R

114079 Rev. B v Contents About This Guide Before You Begin ...

Configuring Interface and Router Redundancy5-2 114079 Rev. BEnabling Router RedundancyTo configure a router redundancy group, you create a group configu

Configuring Router Redundancy114079 Rev. B 5-3 Figure 5-1. Main Site Manager WindowThe standard file selection window opens.2. Enter template as the fil

Configuring Interface and Router Redundancy5-4 114079 Rev. BThe Add Circuit window opens (Figure 5-2).Figure 5-2. Add Circuit Window7.Select an availa

Configuring Router Redundancy114079 Rev. B 5-5 Figure 5-3. Select Protocols Window8. Scroll through the list and choose Router Redundancy. You can als

Configuring Interface and Router Redundancy5-6 114079 Rev. BFigure 5-4. Router Redundancy Circuit WindowThe Enable, Role Switch on Failure, and Send P

Configuring Router Redundancy114079 Rev. B 5-7 Figure 5-5. R.R. Group Global Parameters Configuration WindowSite Manager supplies default values for al

Configuring Interface and Router Redundancy5-8 114079 Rev. BRouter Redundancy Group ParametersUse the following descriptions as guidelines when you ed

Configuring Router Redundancy114079 Rev. B 5-9 Parameter: Send PDU Enable Default: Enable Options: Enable | Disable Function: Enables or disables sen

Configuring Interface and Router Redundancy5-10 114079 Rev. B Parameter: Automatic Role Switching Default: Auto Options: Manual | Auto | Switch on Fai

Configuring Router Redundancy114079 Rev. B 5-11 Parameter: Timeout Threshold Default: 5 Options: 1 to 100 Function: Specifies the number of time perio

vi 114079 Rev. B Chapter 2Router Redundancy Overview Primary Router ...

Configuring Interface and Router Redundancy5-12 114079 Rev. B Parameter: Role Switch Delay Period Default: 5 seconds Options: 1 to 86,400 seconds Func

Configuring Router Redundancy114079 Rev. B 5-13 To edit Resource parameters:1. Choose Protocols > Edit Router Redundancy > Resources in the Circ

Configuring Interface and Router Redundancy5-14 114079 Rev. BFigure 5-7. Router Redundancy Resource Window3.Enter the IP address of the device you wan

Configuring Router Redundancy114079 Rev. B 5-15 Parameter: Enable Status Update Default: Enable Options: Enable | Disable Function: This parameter is

Configuring Interface and Router Redundancy5-16 114079 Rev. B Parameter: Ping Timeout Default: 5 seconds Options: 1 to 10 seconds Function: Specifies t

Configuring Router Redundancy114079 Rev. B 5-17 Applying a Group Configuration FileTo apply the group configuration file template to each member of a rou

Configuring Interface and Router Redundancy5-18 114079 Rev. BFigure 5-9. Configuration Manager Window for Member ConfigurationThe R.R. Member Global Par

Configuring Router Redundancy114079 Rev. B 5-19 5.Enter values for the member global parameters, using the descriptions that follow this procedure for

Configuring Interface and Router Redundancy5-20 114079 Rev. BRouter Redundancy Member Global Parameters Use the following descriptions as guidelines w

Configuring Router Redundancy114079 Rev. B 5-21 Parameter: Priority Default: 1 Options: 1 to 128 Function: Indicates this router’s priority to become

114079 Rev. B viiConfiguring Router Redundancy on Model 5380 Routers ...5-22Configuring Router Redundancy on O

Configuring Interface and Router Redundancy5-22 114079 Rev. BSending the Configuration Files to the RoutersYou have now created configuration files for R

Configuring Router Redundancy114079 Rev. B 5-23 Configuring Router Redundancy on Different 5380 RoutersYou can configure router redundancy so that a slo

114079 Rev. B A-1 Appendix ASite Manager Default Parameter SettingsThis appendix lists the Site Manager default parameter settings for router redundan

Configuring Interface and Router RedundancyA-2 114079 Rev. BTable A-2. Router Redundancy Member Global ParametersParameter DefaultEnable EnableMember

114079 Rev. B B-1 Appendix BRouter Redundancy ExamplesThis appendix contains three examples of router configurations that use router redundancy.Example

Configuring Interface and Router RedundancyB-2 114079 Rev. BPossible ScenariosThe sections below describe possible scenarios and how they would affect

Router Redundancy Examples114079 Rev. B B-3 Possible ComplicationsThe following sections describe complications that can occur when you use router red

Configuring Interface and Router RedundancyB-4 114079 Rev. BExample 2: Three Routers at the Same SiteFigure B-2 illustrates a router redundancy group

Router Redundancy Examples114079 Rev. B B-5 Example 3: Router Redundancy with Wide Area NetworksBay Networks router redundancy services do not current

Configuring Interface and Router RedundancyB-6 114079 Rev. BTo provide redundancy for this WAN:1. Define the remote interface on the other side of the

Router Redundancy Examples114079 Rev. B B-7 Example 4: Router Redundancy with Ethernet SwitchesFigure B-4 illustrates a router redundancy group with p

114079 Rev. B C-1 Appendix CWorksheets for Configuring Router RedundancyThese worksheets assume a router redundancy group of three routers. Use them to

Configuring Interface and Router RedundancyC-2 114079 Rev. BTable C-2. Resource Planning WorksheetPlanning Issue/Parameter Router A Router B Router CE

114079 Rev. B D-1 Appendix DBOFL ParametersSetting BOFL ParametersBOFL parameters affect the speed of detecting failed interfaces. You set BOFL parame

Configuring Interface and Router RedundancyD-2 114079 Rev. BFigure D-1. Edit CSMA/CD Parameters Window Parameter: BOFL Enable Default: Enable Options:

BOFL Parameters114079 Rev. B D-3 Parameter: BOFL Timeout Default: 5 seconds Options: 1 to 60 seconds Function: Specifies the time between transmission

Configuring Interface and Router RedundancyD-4 114079 Rev. B Parameter: BOFL Timeout Divisor Default: 1 (10 when the interface is configured for Router

114079 Rev. B Index-1 Symbols100-Mb Ethernet, 3-210-Mb Ethernet, 3-2Aactive interface, defined, 1-1adding interfaces to a group, 4-6AppleTalk, 3-2apply

114079 Rev. B ix Figures Figure 4-1. Add Circuit Window ...4-2Figure 4

Configuring Interface and Router RedundancyIndex-2 114079 Rev. BGGood Bid Count parameter, 5-11group configuration filesapplying, 5-17creating, 5-2group

Index114079 Rev. B Index-3 changing out of primary role, 2-6defined, 2-1Priority parameter, 5-21priority rules for interface redundancy, 1-2protocol da