Instruction/ maintenance manual of the product 9032578-02 Cabletron Systems
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SmartSwitch Router User Reference Manual 90 3 25 7 8-0 2.
Notice 2 SSR User Refe rence Manu al.
SSR User Re f erence Manual 3 Notice Notice Cabletron Systems reserv es the right t o make changes in speci f i cations and other informatio n contained in this document without prior no tice . The reader should in all cases consult Cabletron Systems to determine whether a n y such changes h a v e bee n made.
Notice 4 SSR User Refe rence Manu al VCCI Notice This is a Class A product based on the stand ard of the V oluntary Control Cou ncil for Interference b y In formation T echnology Equipment (VCCI). I f this equipment is used in a domestic en vironment, radio disturb ance may arise.
SSR User Reference Manual 5 Notice DECLARA TION OF CONFORMITY ADDENDUM Applicati on of Co uncil Di rective(s): 89/336/ EEC 73/23/EEC Manufact ur er ’s Name : Cabletron Systems, Inc. Manufactur er ’s Address: 35 Industrial Way PO Box 5 005 Rochester, NH 03867 European Representative Nam e: Mr .
Notice 6 SSR User Refe rence Manu al.
SmartSwi tch Router User Reference Manual 7 Contents Preface ........... ......... .............. .......... .............. ......... .............. ......... ........... 1 5 About This Manual ............... ........... ................. ........... .
Contents 8 SmartSwitch Route r User Referenc e Manual Port-based VLANs .................... ................. ........... ................. ........... ................. ..... 3 5 MAC-address-ba sed VLANs ......... ................. ........... ......
SmartSwi tch Router User Reference Manual 9 Contents Assigning IP/IPX Interfaces ..................... ................. ................. ........... ................. ....... 51 Chapter 4: RIP Configuration Guide ...... .............. ..............
Contents 10 SmartSwitch Router User Reference M anual Notes on Using Communities ............ ................. ............ ................ ............ .......... 9 7 Local_Pref Attribute Example ................... ................. ............ .
SmartSwi tch Router User Reference Manual 11 Contents Creating an Aggre gate Destination ............... ................. ........... ................. ........... ..... 126 Creating an Aggre gate Source ............................ ............ ....
Contents 12 SmartSwitch Router User Reference M anual IPX Addresses .................. ................. ................. ........... ................. ........... ................. ... 15 3 Configuring IPX Interfaces a nd Parameters ................
SmartSwi tch Router User Reference Manual 13 Contents Configure ACL .................... ................. ............ ................. ........... ................. ................176 Defining an IP ACL ...................... ............ ........
Contents 14 SmartSwitch Router User Reference M anual Configuration for Ro uter R2..................... ................. ........... ................. ........... ... 19 7 Symmetrical Configuration .................. ................. ........... ...
SmartSwi tch Router User Reference Manual 15 Pr eface About Th is Manu al This manual pro vides detailed informat ion and procedur e s for configuring the SmartSwitch Router SSR softwa re.
Prefa ce 16 SmartSwitch Router User Reference M anual How to Use This Manual Related Documenta tion The Cabletr on Systems documentation set includes the following items.
SmartSwi tch Router User Reference Manual 17 Chapter 1 SmartSwitch Router Pr oduct Overview The SmartSwitch Router (S SR) pr ovides non-blocking, wire -speed Layer-2 (switching), Layer -3 (rou ting) and Layer-4 (application) switching.
Chapter 1: SmartSwitch Router Product O verview 18 SmartSwitch Router User Reference M anual The fol lowin g tab le li sts the b asic har dware and so ftw ar e spe cif icat ions f or th e SSR : T able 1.
SmartSwi tch Router User Reference Manual 19 Chapter 1: Sm artSwitch Ro uter Product Ove rview Suppo rted Medi a (Encaps ulati on T ype ) The SSR supports the following industry-standa rd networking med ia: • IP: IEEE 802 .3 SNAP and Ethernet T ype II • IPX: IEEE 80 2.
Chapter 1: SmartSwitch Router Product O verview 20 SmartSwitch Router User Reference M anual – Service Advert ising Pr otocol (SAP) Chapter 9: “IPX Routi ng Confi guration Guide” on page 151 describes these protocol s in detail.
SmartSwi tch Router User Reference Manual 21 Chapter 1: Sm artSwitch Ro uter Product Ove rview Access Modes The SSR CLI has four access mo des. • User – Allow s you to displa y basic inform ation .
Chapter 1: SmartSwitch Router Product O verview 22 SmartSwitch Router User Reference M anual User Mode After you log in to the SSR , you are automatically in User mode.
SmartSwi tch Router User Reference Manual 23 Chapter 1: Sm artSwitch Ro uter Product Ove rview T o list the Enable commands, enter : The Enable mode command prompt consist s of the SSR nam e followed .
Chapter 1: SmartSwitch Router Product O verview 24 SmartSwitch Router User Reference M anual T o exit Enable mode and r eturn to Use r mode, use one of the fo llowing commands: Config ur e Mode Configure mode provides the ca pabilities to configure all feat ures and functions on the SSR.
SmartSwi tch Router User Reference Manual 25 Chapter 1: Sm artSwitch Ro uter Product Ove rview T o exit Configur e mode and r eturn to Enable mode, use one of the following comma nds: Boot PROM Mode If your SSR does n ot find a valid system image on the external PCMCIA flash, the system might enter pr ogrammable r ead-only memo ry (PROM) mode.
Chapter 1: SmartSwitch Router Product O verview 26 SmartSwitch Router User Reference M anual SSR boots, the boot im age is executed first, followed by the syst em image and finish ing with a config uration file. Boot and System Image Only one boot image exists on the intern al flash of the SSR Contro l Module.
SmartSwi tch Router User Reference Manual 27 Chapter 1: Sm artSwitch Ro uter Product Ove rview Note: In this exampl e, the location “pc-flash” indicates th at the SSR is set to use the factory-installed softwar e on the flash car d. 2. Copy the softwar e upgrade you want to install on to a TF TP server that the SSR can access.
Chapter 1: SmartSwitch Router Product O verview 28 SmartSwitch Router User Reference M anual Here is an example: In this example, the locatio n “pc-flash” indicates that th e SSR is set to use the factory- installed software on the flash card. 2. Copy the softwar e upgrade you want to install onto a TF TP server that the SSR can access.
SmartSwi tch Router User Reference Manual 29 Chapter 1: Sm artSwitch Ro uter Product Ove rview 4. T he C LI di spla ys t he f ollo win g mes sage : 5. Enter yes or y to activate the changes.
Chapter 1: SmartSwitch Router Product O verview 30 SmartSwitch Router User Reference M anual Set SSR Name The SSR name is set to ssr by default. Y ou may customize the name for the SSR by entering the follo wing command in Conf igure mo de:. Set SSR Date and Time The SSR system time can keep track of time as entered by th e user or via NTP .
SmartSwi tch Router User Reference Manual 31 Chapter 1: Sm artSwitch Ro uter Product Ove rview Configure SNMP Services The SSR accepts SNMP sets and gets fr om an SNMP manager . Y ou can configur e SSR SNMP parameters including com munity strings and trap server targ et addresses.
Chapter 1: SmartSwitch Router Product O verview 32 SmartSwitch Router User Reference M anual Show the SNMP communi ty strings. snmp show community Show SN MP related statist ics. snmp show statistics Show trap tar get r elated configuration. snmp show trap Show the active configuration of the system.
SmartSwi tch Router User Reference Manual 33 Chapter 2 Bridging Configuration Guide Bridgi ng Overview The SmartSwitch Router pr ovides the following bridging functions: • Complies with the IEEE 802.
Chapter 2: Bridging Con figuration Guid e 34 SmartSwitch Router User Reference M anual Note: W AN interfaces on the SSR do n ot currently support Spanning T ree operation s. However , future implementat ions of W AN for the SSR fam ily of routers will support Spanning T ree.
SmartSwi tch Router User Reference Manual 35 Chapter 2: B ridging Configuratio n Guide • MAC addr ess based • Protocol based • Subnet based • Multicast ba sed • Policy based Detailed informatio n about these types of VLANs is beyond the scope of this m anual.
Chapter 2: Bridging Con figuration Guid e 36 SmartSwitch Router User Reference M anual Multicast-based VLANs Multicast-based VLANs a re cr eated dynamically for mu lticast groups.
SmartSwi tch Router User Reference Manual 37 Chapter 2: B ridging Configuratio n Guide the SSR as a r esult of cr eating L3 interfaces for IP and/ or IPX. However , these implicit VLANs do not need to be cre ated or configur ed manually . The implicit VLANs created by the SSR ar e subnet-based VLANs.
Chapter 2: Bridging Con figuration Guid e 38 SmartSwitch Router User Reference M anual For example, if port 1 belongs to VLAN IPX_VLAN for IPX, VLAN IP_VLAN for IP and VLAN OTHER_VLAN for any other pr otocol, then an IP frame r eceived by por t 1 is classified as belongi ng to VLAN IP_ VLAN .
SmartSwi tch Router User Reference Manual 39 Chapter 2: B ridging Configuratio n Guide The corr esponding bridge tables for addr ess-based and flow-based bridging ar e shown below . As shown, the bridge table conta ins mor e information on the traf fic patterns when flow-based bridging ena bled compar ed to addr ess-based bridgin g.
Chapter 2: Bridging Con figuration Guid e 40 SmartSwitch Router User Reference M anual Note: If you ar e running spanni ng tree on one or mor e VLANs, you must enable spanning tr ee on all ports belonging to each VLAN.
SmartSwi tch Router User Reference Manual 41 Chapter 2: B ridging Configuratio n Guide T o set an interface priority , enter the following comma nd in Configur e mode: Assign Port Costs Each interface ha s a port cost associated with it. By co nvention, the port cost is 1 000/data rate of the a ttached LAN, in Mbps.
Chapter 2: Bridging Con figuration Guid e 42 SmartSwitch Router User Reference M anual Defi ne th e Max imu m Age If a bridge does no t hear BPDUs from the r o ot bridge within a specified interva l, it assumes that the netw ork has changed and r ecomputes the spanning-tr ee topology .
SmartSwi tch Router User Reference Manual 43 Chapter 2: B ridging Configuratio n Guide Config ur e Bridging for Non-IP/IPX Protocols By default, all non- routable pr otocols (AppleT alk and DECnet) ar e bridged within the SSR.
Chapter 2: Bridging Con figuration Guid e 44 SmartSwitch Router User Reference M anual Configurati on Examples Cr eating an IP or IPX VLAN VLANs are used to associate physical ports on the SSR with co nnected hosts that may be physically separated but need to participate in th e same bro adcast domain.
SmartSwi tch Router User Reference Manual 45 Chapter 3 IP Routing Configuration Guide This chapter describes how to configur e IP interfaces and general no n-proto col-specific routing para meters. IP Routi ng Overview Internet Pr otocol (IP) is a packet-based pr otocol used to e xchange data over com puter networ ks.
Chapter 3: IP Routing C onfiguration Gu ide 46 SmartSwitch Router User Reference M anual The SSR supports standar ds based TCP , UDP , and IP . IP Routing Protocols The SSR suppo rts standards based uni cast and mu lticast routing. Un icast routing protocol support include Interior Gateway Pr otocols and Exterior Gateway Pro tocols.
SmartSwi tch Router User Reference Manual 47 Chapter 3: IP Routing Configuratio n Guide Configuring I P Interfaces and Parameters Thi s sec tion p rovid es an over view of c onfi guri ng v ario us IP para met ers and s ettin g up IP interfaces. Configure IP Addr esses to Ports Y ou can configure one IP interface directly to physical ports.
Chapter 3: IP Routing C onfiguration Gu ide 48 SmartSwitch Router User Reference M anual • 802.3 SNAP: S NAP IEEE 802.3 encapsulation, in which th e type code becomes the frame le ngth for the IEEE 802 .
SmartSwi tch Router User Reference Manual 49 Chapter 3: IP Routing Configuratio n Guide Configure DNS Parameters The SSR can be conf igured to specify D NS servers which supply name services for DNS requests.
Chapter 3: IP Routing C onfiguration Gu ide 50 SmartSwitch Router User Reference M anual • NetBIOS Datagram Server (port 138) • T AC ACS S erv er ( port 4 9) • T ime Service (port 37) T o config.
SmartSwi tch Router User Reference Manual 51 Chapter 3: IP Routing Configuratio n Guide Configurati on Examples Assigning IP/IPX I nterfaces T o enable routing on the SSR, you must ass ign an IP or IPX interfa ce to a VLAN.
Chapter 3: IP Routing C onfiguration Gu ide 52 SmartSwitch Router User Reference M anual.
SmartSwi tch Router User Reference Manual 53 Chapter 4 RIP Configuration Guide RIP Overview This chapter describes how to conf igure Ro uting Information Pr otocol (RIP) in the SmartSwitch Router . RIP is a dista nce-vector routing pr otocol for use in sm all networks.
Chapter 4: R IP Configuration Gu ide 54 SmartSwitch Router User Reference M anual Enabling and Disabling RIP T o enable or disable RIP , enter one of the following comman ds in Configure mode. Configuring R IP Interfaces T o configure RIP in the S SR, you must first add interfaces to inform RIP about attached interfaces.
SmartSwi tch Router User Reference Manual 55 Chapter 4: RIP Configuration Guid e T o change RIP parameters, enter the fo llowing commands in Conf igure mode. Configure RIP Route Prefer ence Y ou can set the prefer ence of routes learned fr om RIP . T o configure RIP r oute prefer ence, enter the following command in Configure mode .
Chapter 4: R IP Configuration Gu ide 56 SmartSwitch Router User Reference M anual Config ur e RIP Route Default-Metric Y ou can define the metric used when advertising r outes via RIP that wer e learned fr om other pr otocols. The defa ult value for this parameter is 16 (unr eachable).
SmartSwi tch Router User Reference Manual 57 Chapter 4: RIP Configuration Guid e Configurati on Example Show detailed info rmation of r esponse packets sent by the router . rip trace response send Show detailed informa tion of request packets sent by the router .
Chapter 4: R IP Configuration Gu ide 58 SmartSwitch Router User Reference M anual.
SmartSwi tch Router User Reference Manual 59 Chapter 5 OSPF Configuration Guide OSPF Ov erview Open Shortest Path First (OSPF) is a link-sta te r outing protocol tha t supports IP subnetting and authentication. Th e SSR supports OSPF V ersion 2 .0 as defined in RFC 1583.
Chapter 5: OSPF Config uration Guide 60 SmartSwitch Router User Reference M anual OSPF Multipath The SSR also suppo rts OSPF an d static Multi- path. If multiple equ al-cost OSPF or sta tic routes ha ve been defined for an y destination, then the SSR “d iscovers” and uses all of them.
SmartSwi tch Router User Reference Manual 61 Chapter 5: OSPF Configuratio n Guide Configure OSPF Interface Paramete rs Y ou can configure the OSPF interface parameters shown in the table below . T o configure OSPF inte rface parameters, ente r one of the fo llowing commands in Config ure mo de: T able 3.
Chapter 5: OSPF Config uration Guide 62 SmartSwitch Router User Reference M anual Configure an OSPF Ar ea OSPF areas are a collection of subnet s that are gr ouped in a logica l fashion. These areas communicate with o ther area s via the backbone ar ea.
SmartSwi tch Router User Reference Manual 63 Chapter 5: OSPF Configuratio n Guide Configure OSPF Ar ea Parameters The SSR al lows configu ration of various O SPF area parameters, includin g stub areas, stub cost and authen tication method. St ub areas ar e ar eas into which information on external routes is no t sent.
Chapter 5: OSPF Config uration Guide 64 SmartSwitch Router User Reference M anual T o configure virtual links, enter the following comm ands in the Configur e mode.
SmartSwi tch Router User Reference Manual 65 Chapter 5: OSPF Configuratio n Guide Monito ring OSPF The SSR provides display of OS PF statisti cs and config urations conta ined in the routing table. Informa tion displayed pr ovides routing an d performance informa tion.
Chapter 5: OSPF Config uration Guide 66 SmartSwitch Router User Reference M anual OSPF Configurati on Examples For all examples in th is section, ref er to the configura tion shown in Figu re 1 on page 70 .
SmartSwi tch Router User Reference Manual 67 Chapter 5: OSPF Configuratio n Guide Exporting All Interface & S tatic Routes to OSPF Router R1 has several static routes. W e would export these static routes as type-2 OSPF routes. The interfa ce routes would be r edistributed as type-1 OSPF routes.
Chapter 5: OSPF Config uration Guide 68 SmartSwitch Router User Reference M anual Router R1 would like to redistribute its OSPF , OSPF-ASE, RIP , Static and Interface/Dir ect routes into RIP . 1. Enable RIP on in terface 12 0.190.1. 1/16. 2. Cr eate a OSPF export destination for type-1 routes.
SmartSwi tch Router User Reference Manual 69 Chapter 5: OSPF Configuratio n Guide 9. Cr eate a RIP export destination. 10. Create OSPF export sour ce. 1 1. Create O SPF-ASE export sour ce. 12. Create the Expo rt-Policy for redistributing all interface, RIP , static, OSPF and OSPF- ASE routes into RIP .
Chapter 5: OSPF Config uration Guide 70 SmartSwitch Router User Reference M anual Figure 1. Exporting to OSPF BGP R1 R2 R3 R41 R42 R6 R11 A r e a B a c k b o n e A r e a 1 40.1. 0.0 (RIP V2) 140.1.1 .1/24 140. 1.2.1/ 24 140. 1.5/ 24 140. 1.4/2 4 190. 1.
SmartSwi tch Router User Reference Manual 71 Chapter 6 BGP Configuration Guide BGP Ov ervie w The Border Gateway Proto col (B GP) is an ext erior gatewa y protocol tha t allows IP r outers to exchange network rea chability information.
Chapter 6: B GP Configuration Guid e 72 SmartSwitch Router User Reference M anual The SSR BGP Implementation The SSR r outing prot ocol implementation is based on GateD 4.
SmartSwi tch Router User Reference Manual 73 Chapter 6: B GP Configuration Guid e Setting the Autonomous System Number An autonomous system number identifies your a utonomous system to other r outers. T o set the SSR’s auton omous system nu mber , enter the following command in Configure mode.
Chapter 6: B GP Configuration Guid e 74 SmartSwitch Router User Reference M anual wher e: peer -group <numb er-or -str ing > Is a gr oup ID, which can be a number or a character string.
SmartSwi tch Router User Reference Manual 75 Chapter 6: B GP Configuration Guid e Adding a BGP Peer There are two w ays to add BGP peers to peer gr oups.
Chapter 6: B GP Configuration Guid e 76 SmartSwitch Router User Reference M anual aspath_term {m} A regular expr ession followed by {m } (where m is a positive integer) means exactly m repet itio ns. aspath_term {m,} A regular expr ession followed by {m ,} (where m is a positive integer) means m or mo re re p et i t io n s .
SmartSwi tch Router User Reference Manual 77 Chapter 6: B GP Configuration Guid e T o import all routes (.* matches all AS paths) w ith the default preference: T o export all ac tive r outes fr om 284 or 813 o r 814 or 8 15 or 816 or 3369 or 3561 to autonom ous system 6 4800.
Chapter 6: B GP Configuration Guid e 78 SmartSwitch Router User Reference M anual Notes on Using the AS Pa th Pr epend Feature • Use the as-coun t option for external peer-hosts only . •I f t h e as-count option is enter ed for an active BGP session, r outes will not be res ent to reflect the n ew setting.
SmartSwi tch Router User Reference Manual 79 Chapter 6: B GP Configuration Guid e a BGP neighbo r relationship is the establis hment of a TCP connection (using TCP port 179) between peers.
Chapter 6: B GP Configuration Guid e 80 SmartSwitch Router User Reference M anual The CLI configuration fo r router SS R1 is as follows: The gated.conf file for r outer SSR1 is as f ollows: The CLI configuration fo r router SS R2 is as follows: interface create ip et.
SmartSwi tch Router User Reference Manual 81 Chapter 6: B GP Configuration Guid e The gated.conf file for r outer SSR2 is as f ollows: IBGP Config uration Example Connections between BGP speakers within the same AS are referr ed to as internal links. A peer in the sa me AS is an internal peer .
Chapter 6: B GP Configuration Guid e 82 SmartSwitch Router User Reference M anual Note that for running IBGP usi ng group-type Routing you must run an IGP such as OS PF to resolve the next hops that com e with external routes. Y ou could also use protocol any so that all pr otocols ar e eligible to resolve th e BGP forwar ding address.
SmartSwi tch Router User Reference Manual 83 Chapter 6: B GP Configuration Guid e In this example, OSPF is configur ed as the IGP in the autonomous system.
Chapter 6: B GP Configuration Guid e 84 SmartSwitch Router User Reference M anual The following lines on the Cisco r outer set up IBGP peering with r outer SSR6.
SmartSwi tch Router User Reference Manual 85 Chapter 6: B GP Configuration Guid e Figure 4 illustrates a sa mple IBGP Internal group conf iguration . Figure 4. Sample IBGP Configuration (Internal Group T ype) The CLI configuration fo r router SS R1 is as follows: AS-1 SSR2 SSR1 17.
Chapter 6: B GP Configuration Guid e 86 SmartSwitch Router User Reference M anual The gated.conf file for r outer SSR1 is as f ollows: The CLI configuration fo r router SS R2 is as follows: The gated.conf file for r outer SSR2 is as f ollows: autonomoussystem 1 ; routerid 16.
SmartSwi tch Router User Reference Manual 87 Chapter 6: B GP Configuration Guid e The configuration for r outer C1 (a Cisco r outer) is as follows: The configuration for r outer C2 (a Cisco r outer) i.
Chapter 6: B GP Configuration Guid e 88 SmartSwitch Router User Reference M anual This sample con figuration shows External BGP peers, S SR1 and SS R4, which ar e not connected to the same subnet. The CLI configuration fo r router SS R1 is as follows: Physical Link Legend: Peering Relationship SSR1 16.
SmartSwi tch Router User Reference Manual 89 Chapter 6: B GP Configuration Guid e The gated.conf file for r outer SSR1 is as f ollows: The CLI configuration fo r router SS R2 is as follows: The gated.conf file for r outer SSR2 is as f ollows: The CLI configuration fo r router SS R3 is as follows: autonomoussystem 64800 ; routerid 0.
Chapter 6: B GP Configuration Guid e 90 SmartSwitch Router User Reference M anual The gated.conf file for r outer SSR3 is as f ollows: The CLI configuration fo r router SS R4 is as follows: The gated.conf file for r outer SSR4 is as f ollows: Community Attribut e Example The following configura tion illustrates the BG P community attribute.
SmartSwi tch Router User Reference Manual 91 Chapter 6: B GP Configuration Guid e Figure 5. Sample BGP Conf iguration (Specific Community) AS-64902 R11 172.26.1. 2/16 172.25.1. 2/16 192.168. 20.2/16 172.25.1. 1/16 1.1 R13 1.6 R10 192.169.20. 1/16 1 92.
Chapter 6: B GP Configuration Guid e 92 SmartSwitch Router User Reference M anual Figur e 6. Sample BGP Configuration (Well-Known Community) The Communi ty attribute can be used in three ways: 1.
SmartSwi tch Router User Reference Manual 93 Chapter 6: B GP Configuration Guid e In Figure 6 , router SSR11 has the follow ing configuration : # # Create an optional attribute lis t with identifier c.
Chapter 6: B GP Configuration Guid e 94 SmartSwitch Router User Reference M anual In Figure 6 , router SSR13 has the follow ing configuration : 3. In an Expor t Statement: The optio nal-attr ibutes-list option of the ip-route r policy create bgp-e xport-des tination command may be used to send the BGP community attribute.
SmartSwi tch Router User Reference Manual 95 Chapter 6: B GP Configuration Guid e In Figure 6 , router SSR10 has the follow ing configuration : In Figure 6 , router SSR14 has the follow ing configurat.
Chapter 6: B GP Configuration Guid e 96 SmartSwitch Router User Reference M anual The communi ty attribute may be a sin gle communit y or a set of communities .
SmartSwi tch Router User Reference Manual 97 Chapter 6: B GP Configuration Guid e Notes on Using Communities When origina ting BGP com munities, the set of com munities that is actually sent is the union of the comm unities received with the r oute (if any), those specified in group po licy (if any), an d those specified in export policy (if any).
Chapter 6: B GP Configuration Guid e 98 SmartSwitch Router User Reference M anual In the sample network in Figure 7 , all the traffic exits Autonomous System 64901 through the link between r outer SSR13 and r outer SSR1 1. This is accomplished by setting the Local_Pr ef attribute.
SmartSwi tch Router User Reference Manual 99 Chapter 6: B GP Configuration Guid e In router SS R12’s CLI configuration file, the impo rt prefer ence is set to 160: Using the formula for lo cal prefe.
Chapter 6: B GP Configuration Guid e 100 SmartSwi tch Router User Reference Manu al Figur e 8. Sample BGP Configuration (MED Attribute) Routers SSR4 and S SR6 inform rout er C1 abou t network 172.
SmartSwi tch Router User Reference Manual 101 Chapter 6: B GP Configuration Guid e EBGP Aggregati on Example Figure 9 shows a simple EBGP conf iguration in wh ich one peer is exporting an aggregated route to its upstrea m peer and restricting the advertisement of contributing r outes to the same peer .
Chapter 6: B GP Configuration Guid e 102 SmartSwi tch Router User Reference Manu al Router SSR9 ha s the following CLI configurat ion: Route Reflection Example In some ISP networks, the internal BGP mesh bec omes quite lar ge and the IBGP full mesh does not scale well.
SmartSwi tch Router User Reference Manual 103 Chapter 6: B GP Configuration Guid e Figure 10 shows a sample co nfiguration that uses r oute reflection . Figure 10. Sample BG P Configuration (Route Reflection) In this example, ther e ar e two clusters.
Chapter 6: B GP Configuration Guid e 104 SmartSwi tch Router User Reference Manu al Router SSR1 1 has r outer SSR12 and r outer SSR13 a s client peers and r outer SSR10 as n on- client peer .
SmartSwi tch Router User Reference Manual 105 Chapter 6: B GP Configuration Guid e Notes on Using Route Reflection • T wo types of route reflection are supported: – By default, all routes received by the route r eflector fr om a client are sen t to all internal peers (including th e client’s group, but not the client itself ).
Chapter 6: B GP Configuration Guid e 106 SmartSwi tch Router User Reference Manu al.
SmartSwi tch Router User Reference Manual 107 Chapter 7 Routing Policy Configuration Guide Route Import and Export Policy Overview The SSR family of routers supports extr emely flexible routing policies.
Chapter 7: R outing Poli cy Configuration Gui de 108 SmartSwi tch Router User Reference Manu al Pr efer ence Prefer ence is the value the SSR routing process uses to or der prefer ence of r outes from one proto col or peer over another . Prefer ence can be set using several dif fer ent configuration commands.
SmartSwi tch Router User Reference Manual 109 Chapter 7: Ro uting Policy Con figuration Guide Impor t Polici es Import policies contr ol the importation of r outes fr om r outing protocol s and their installatio n in the r outing dat abases (Routing Information Base and Forwa r ding Information Base) .
Chapter 7: R outing Poli cy Configuration Gui de 110 SmartSwi tch Router User Reference Manu al It is only poss ible to restrict the importation of OSPF ASE routes when fun ctioning as an AS bor der r outer . Like the other interior pr otocols, pr efer ence cannot be used to cho ose between OSPF ASE routes.
SmartSwi tch Router User Reference Manual 111 Chapter 7: Ro uting Policy Con figuration Guide The r outes to be exported can be id entified by their associated attributes: • Their pro tocol type (RIP , OSPF , BGP , Static, Dir ect, Aggregate). • Interface or the gateway from which the route was received.
Chapter 7: R outing Poli cy Configuration Gui de 112 SmartSwi tch Router User Reference Manu al A route will match the most specific filter that a pplies. Specifying m or e than on e filter with the same d estination, ma sk and modifiers generates an err or .
SmartSwi tch Router User Reference Manual 113 Chapter 7: Ro uting Policy Con figuration Guide Route aggregation is also used by regiona l and nationa l network s to reduce the amount of routing information pa ssed around.
Chapter 7: R outing Poli cy Configuration Gui de 114 SmartSwi tch Router User Reference Manu al Route-Filter This component specifies the individual r outes that ar e to be aggr egated or summarized. The pr eference to be associated with these ro utes can also be explicitly specified using this component.
SmartSwi tch Router User Reference Manual 115 Chapter 7: Ro uting Policy Con figuration Guide Many protocols allow the specifica tion of two au thentication keys per interface. Packets are always sent using th e primary keys, but received packets are checked with both the primary and secondary keys befor e being discar ded.
Chapter 7: R outing Poli cy Configuration Gui de 116 SmartSwi tch Router User Reference Manu al The fr om-pr oto parameter specifies the pr otocol of the sour ce ro utes. The values for the fro m-proto para meter are rip, ospf, bgp, dir ect, static, aggregate an d ospf-ase.
SmartSwi tch Router User Reference Manual 117 Chapter 7: Ro uting Policy Con figuration Guide Redistributing RIP into RIP The SSR r outing process req uires RIP r edistribution into RIP if a pr otocol is redistributed into RIP .
Chapter 7: R outing Poli cy Configuration Gui de 118 SmartSwi tch Router User Reference Manu al T o redistribute aggregate r outes, enter on e of the following co mmands in Configur e mode: Simple Rou.
SmartSwi tch Router User Reference Manual 119 Chapter 7: Ro uting Policy Con figuration Guide Exporting a Given Static Route to All RIP Int erfaces Router R1 has several static routes of which one is t he default route. W e w ould export this default ro ute over all RIP interfa ces.
Chapter 7: R outing Poli cy Configuration Gui de 120 SmartSwi tch Router User Reference Manu al • Specify the static routes configured on the router • Determine its OSPF co nfigurati on Exporting All Interface & S tatic Routes to OSPF Router R1 has several static routes.
SmartSwi tch Router User Reference Manual 121 Chapter 7: Ro uting Policy Con figuration Guide In the configurat ion shown in F igure 12 on page 131, suppose if we decide to run RIP V ersion 2 on networ k 120.190.0.0 /16, connecting r o uters R1 and R2 .
Chapter 7: R outing Poli cy Configuration Gui de 122 SmartSwi tch Router User Reference Manu al routes to be exported can be identified by their associated attributes, such as proto col type, interface or the gateway from which the r oute was received, and so on.
SmartSwi tch Router User Reference Manual 123 Chapter 7: Ro uting Policy Con figuration Guide Cr eating an Export Destination T o create an export d estination, enter one the follo wing commands in Co.
Chapter 7: R outing Poli cy Configuration Gui de 124 SmartSwi tch Router User Reference Manu al T o create ro ute import policies, enter the following comman d in Configur e mode: The <imp-sr c-id> is the identif ier of the import-so urce that determines the source of the imported r outes.
SmartSwi tch Router User Reference Manual 125 Chapter 7: Ro uting Policy Con figuration Guide • Aggregate-Destin ation - This component s pecifies the ag gregate/summarized route. It also specifies the attributes associated with the aggregate r oute.
Chapter 7: R outing Poli cy Configuration Gui de 126 SmartSwi tch Router User Reference Manu al Cr eating an Aggregate Destination T o create an aggr egate destinat ion, enter the f ollowing command i.
SmartSwi tch Router User Reference Manual 127 Chapter 7: Ro uting Policy Con figuration Guide The f oll owing conf igur ati on com man ds fo r rout er R1 • Determine the IP address for ea ch interface. • Specify the static routes configured on the router .
Chapter 7: R outing Poli cy Configuration Gui de 128 SmartSwi tch Router User Reference Manu al Importing a Selected Subset of Routes from One RIP T rusted Gateway Router R1 has several RIP peers. Router R41 has an interface on the network 10.51.0.0 .
SmartSwi tch Router User Reference Manual 129 Chapter 7: Ro uting Policy Con figuration Guide 1. Add the peer 140.1.1.41 to the list of trusted and source gateways. 2. Cr eate a RIP import source with the gateway as 140.1.1.4 since we would like to import al l r outes except t he 10.
Chapter 7: R outing Poli cy Configuration Gui de 130 SmartSwi tch Router User Reference Manu al It is only poss ible to restrict the importation of OSPF ASE routes when fun ctioning as an AS bor der r outer . Like the other interior pr otocols, pr efer ence cannot be used to cho ose between OSPF ASE routes.
SmartSwi tch Router User Reference Manual 131 Chapter 7: Ro uting Policy Con figuration Guide Figure 12: Exporting to OSPF BGP R1 R2 R3 R41 R42 R6 R11 A r e a B a c k b o n e A r e a 140.1.0 .0 (RIP V2) 14 0.1.1 .1/2 4 140. 1.2.1 /24 140. 1.5/ 24 140.
Chapter 7: R outing Poli cy Configuration Gui de 132 SmartSwi tch Router User Reference Manu al The following configura tion commands for router R1: • Determine the IP address for ea ch interface • Specify the static routes configured on the router • Determine its OSPF co nfigurati on Importing a Selected Subset of OSPF-ASE Routes 1.
SmartSwi tch Router User Reference Manual 133 Chapter 7: Ro uting Policy Con figuration Guide Examples of E xport Policies Example 1: Ex porting to RIP Exporting to RIP is con trolled by any of protocol, interface or gateway . If more than one is specified, they ar e processed fr om most general (protocol) to m ost specific (gateway).
Chapter 7: R outing Poli cy Configuration Gui de 134 SmartSwi tch Router User Reference Manu al Exporting a Given Static Route to All RIP Int erfaces Router R1 has several static ro utes, of which one is the default route. W e would export this default ro ute over all RIP interfa ces.
SmartSwi tch Router User Reference Manual 135 Chapter 7: Ro uting Policy Con figuration Guide 4. Create a Dir ect export source since we would like to export direct/interface r outes. 5. Cr eate the export-policy redistributing the statically cr eated default r o ute, and all (RIP , Direc t) routes int o RIP .
Chapter 7: R outing Poli cy Configuration Gui de 136 SmartSwi tch Router User Reference Manu al Exporting All Static Route s Reachable Over a Given Interface to a Specific RIP- Interfa ce In this case, router R1 would export/redistribute all static routes accessible through it s inter face 130 .
SmartSwi tch Router User Reference Manual 137 Chapter 7: Ro uting Policy Con figuration Guide 1. Cr eate an Aggregat e-Destination which r epresents the aggr egate/summarized r oute. 2. Cr eate an Aggregat e-Source which qualifies the source of the r outes contributing to the aggregate.
Chapter 7: R outing Poli cy Configuration Gui de 138 SmartSwi tch Router User Reference Manu al 8. Create th e Export-Policy redistributing all (RIP , Dir ect) routes and the aggr egate route 140.
SmartSwi tch Router User Reference Manual 139 Chapter 7: Ro uting Policy Con figuration Guide Exporting All Interface & S tatic Routes to OSPF Router R1 has several static routes. W e would export these static routes as type-2 OSPF routes. The interfa ce routes would redistributed as type 1 OSPF routes.
Chapter 7: R outing Poli cy Configuration Gui de 140 SmartSwi tch Router User Reference Manu al 4. Create a Direct export source since we would like to export int erface/direct ro utes. 5. Create th e Export-Policy for redistributing all interface r outes and static routes into OSPF .
SmartSwi tch Router User Reference Manual 141 Chapter 7: Ro uting Policy Con figuration Guide 5. Cr eate a RIP export source. 6. Cr eate a Static export source . 7. Cr eate a Direct expor t source. 8. Create th e Export-Policy for redistributing all interface, RIP and static r outes into OSPF .
Chapter 7: R outing Poli cy Configuration Gui de 142 SmartSwi tch Router User Reference Manu al 12. Create the Expo rt-Policy for redistributing all interface, RIP , static, OSPF and OSPF- ASE r outes into RIP .
SmartSwi tch Router User Reference Manual 143 Chapter 8 Multicast Routing Configuration Guide IP M ultic ast Overv iew Multicast routing on th e SSR is supported through DV MRP and IG MP . IGMP is used to determine host membership on directly attach ed subnets.
Chapter 8: M ulticast Routing C onfiguration Guide 144 SmartSwi tch Router User Reference Manu al The SSR allows per-interfa ce contr ol of the host que ry interval and r esponse time. Q uery interval defines the time between IGMP que ries. Response time defin es the time the SSR will wait for host r esponses to IGMP queries.
SmartSwi tch Router User Reference Manual 145 Chapter 8: Mul ticast Routin g Configuration Guid e Configur e IGMP Y ou configure IGMP on the SSR by perfor ming the follow ing configura tion tasks.
Chapter 8: M ulticast Routing C onfiguration Guide 146 SmartSwi tch Router User Reference Manu al T o configure the host respon se wait time, en ter the following comma nd in Configure mode: Configure Per -Interface Contr ol of IGMP Me mbership Y ou can configure the SSR to control IGMP membership on a per-interface basis.
SmartSwi tch Router User Reference Manual 147 Chapter 8: Mul ticast Routin g Configuration Guid e T o start or stop DVMRP , enter one of the following commands in Configur e mode: Config ur e DVMRP on an Interface DVMRP can be contr olled/configur ed on per-in terface basis.
Chapter 8: M ulticast Routing C onfiguration Guide 148 SmartSwi tch Router User Reference Manu al Configure DVMRP TTL & Scope For contr ol over internet traffic, per -interface co ntrol is allowed thr ough Sco pes and TTL thresholds. The TTL value contr ols whether packets ar e forwa rded fr om an interface.
SmartSwi tch Router User Reference Manual 149 Chapter 8: Mul ticast Routin g Configuration Guid e DVMRP tunnels need to be cr eated befor e being enabled. T unnels ar e r ecognized by the tunnel name. Once a DVMRP tunnel is cr eated, you can enable DVMRP on the inter face.
Chapter 8: M ulticast Routing C onfiguration Guide 150 SmartSwi tch Router User Reference Manu al Configurati on Examples The following is a sample SSR con figuration f or DVMRP and IGMP . Seven subnet s are created. IGMP is enabled on 4 IP interfaces.
SmartSwi tch Router User Reference Manual 151 Chapter 9 IPX Routing Configuration Guide IPX Routi ng Overview The Internetwork Packet Exchange ( IPX) is a datagram connectionless pr otocol for the Novell NetW ar e envir onment. Y ou can configure the SSR for IPX r outing and SAP .
Chapter 9: IP X Routing Configu ration Guide 152 SmartSwi tch Router User Reference Manu al this informa tion is imme diately broadcast to any neig hboring routers. Routers a lso send periodic RIP broadcast pack ets containin g all routing informatio n known to the router .
SmartSwi tch Router User Reference Manual 153 Chapter 9: IPX Routing Configuratio n Guide Configuring I PX RIP & SAP This section prov ides an overview of configuring various IPX pa rameters and setting up IPX interfaces. IPX RI P On the SSR, RIP automatically runs on all IPX interfa ces.
Chapter 9: IP X Routing Configu ration Guide 154 SmartSwi tch Router User Reference Manu al Configuring I PX Interfaces and Parameters This section prov ides an overview of configuring various IPX pa rameters and setting up IPX interfaces. Configure IPX Addres ses to Ports Y ou can configure one IPX interface dir ectl y to a physical port.
SmartSwi tch Router User Reference Manual 155 Chapter 9: IPX Routing Configuratio n Guide • 802.2: 80 2.2 encapsulation m ethod used within Novell IPX envir onments Configur e IPX Routing By default, IPX r outing is enabled on the S SR. Enable IPX RIP IPX RIP is enabled by def ault on the S SR.
Chapter 9: IP X Routing Configu ration Guide 156 SmartSwi tch Router User Reference Manu al Configure Stati c SAP T able Entries Servers in an IPX network use SAP to advertise services via bro adcast packets. Services fro m servers are stor ed in the Server Information T able.
SmartSwi tch Router User Reference Manual 157 Chapter 9: IPX Routing Configuratio n Guide Create an IPX T ype 20 Access Control List IPX typ e 20 acce ss c ontrol lis ts co ntrol the forw ardi ng of I PX type 20 p acke ts .
Chapter 9: IP X Routing Configu ration Guide 158 SmartSwi tch Router User Reference Manu al Create an IPX RIP Access Contro l List IPX R IP ac cess con tro l li sts contr ol which RIP updat es a re allo wed .
SmartSwi tch Router User Reference Manual 159 Chapter 9: IPX Routing Configuratio n Guide • Adds a SAP access list • Adds a G NS access list ! Create interface ipx1 with ipx addre ss AAAAAAAA interface create ipx ipx1 address AAAA AAAA port et.1.1 output-mac- encapsulation ethernet_802.
Chapter 9: IP X Routing Configu ration Guide 160 SmartSwi tch Router User Reference Manu al.
SmartSwi tch Router User Reference Manual 161 Chapter 10 Security Configuration Guide Security Overview The SSR pr ovides security featur es that help contr ol access to the SSR and filter traf fic going thr ough the SSR.
Chapter 10: Security Co nfiguration Guide 162 SmartSwi tch Router User Reference Manu al Configurin g SSR Access Sec urity Config ur e RADIU S Y ou can secure login or Enable mode access to th e SSR by enabling a R emote Authentication Dial- In Service (RADIUS ) client.
SmartSwi tch Router User Reference Manual 163 Chapter 10: Sec urity Configuration Guid e T o configure T ACACS security , enter the fo llowing commands in the Configur e mode: Monitor T ACACS Y ou can monitor T ACACS config uration and statisti cs within the SSR.
Chapter 10: Security Co nfiguration Guide 164 SmartSwi tch Router User Reference Manu al T o monitor T ACACS Plus, enter the fo llowing commands in Enable m ode: Configure Passwords The SSR pr ovides password au thentication for accessing the User and Enable modes.
SmartSwi tch Router User Reference Manual 165 Chapter 10: Sec urity Configuration Guid e Configuring Layer -2 Address Filters If you want to control access to a source or destinatio n on a per-MAC address basis, you can conf igure an address filter . Address filters a re always co nfigured an d applied to the input port.
Chapter 10: Security Co nfiguration Guide 166 SmartSwi tch Router User Reference Manu al Configuring Layer -2 Static Entry Fil ters Static entry filters allow or force tra ffic to go to a set of desti.
SmartSwi tch Router User Reference Manual 167 Chapter 10: Sec urity Configuration Guid e • Combine a destination secur e port filter with a flow static entry to dro p all received traffic but allow .
Chapter 10: Security Co nfiguration Guide 168 SmartSwi tch Router User Reference Manu al Layer -2 Filter Ex amples Figure 13. Source Filter Example Example 1: Address Filters Source filt er: The consultant is not allowed to access any file servers.
SmartSwi tch Router User Reference Manual 169 Chapter 10: Sec urity Configuration Guid e Destinati on stat ic entry: Restrict "login multi casts" origina ting from the engineering segment (port et.
Chapter 10: Security Co nfiguration Guide 170 SmartSwi tch Router User Reference Manu al Destination secure port: T o block access to all file servers on all ports fr om port et.1.1 use the foll owin g comm and: T o allow all engineers access to the engineering servers, you must "punch" a hole through the secure-port wall.
SmartSwi tch Router User Reference Manual 171 Chapter 10: Sec urity Configuration Guid e • T ype of Service (T OS) For IPX ACLs, the following fie lds can be specified: • Source network addr ess .
Chapter 10: Security Co nfiguration Guide 172 SmartSwi tch Router User Reference Manu al ahead of r ules that ar e less specific. For example, the following ACL permits all TCP traf fic except t hose fro m subnet 10.2.0.0/1 6: When a TCP packet comes from subnet 10.
SmartSwi tch Router User Reference Manual 173 Chapter 10: Sec urity Configuration Guid e If a packet comes in and doesn't match the first two rules, the packet will be dropped. This is because the third rule (implicit deny) will match al l packets.
Chapter 10: Security Co nfiguration Guide 174 SmartSwi tch Router User Reference Manu al When a packet comes into a router a t an interface wher e an inbo und ACL is applied, the router compa res the packet with the r ules specified by that ACL. If it is permitted, th e packet is allowed into the r outer .
SmartSwi tch Router User Reference Manual 175 Chapter 10: Sec urity Configuration Guid e creating a dditional delay . Therefor e, one should consider th e potential performa nce impact before turn ing on ACL Logging. Maintaining ACLs Offline Using TF TP or RCP The SSR pr ovides two mechanisms to m aintain and manipulate ACLs.
Chapter 10: Security Co nfiguration Guide 176 SmartSwi tch Router User Reference Manu al Maintaining ACLs Using the ACL Editor In addition to the tra ditional method of maintain ing ACLs using TF TP or RCP , the SSR provides a simpler and more user-frien dly mechanism to m aintain ACL: the ACL Editor .
SmartSwi tch Router User Reference Manual 177 Chapter 10: Sec urity Configuration Guid e Defining an IPX ACL T o define an IPX ACL, pe rform the following in the Co nfigur e mode: Applying an ACL to a.
Chapter 10: Security Co nfiguration Guide 178 SmartSwi tch Router User Reference Manu al Show ACLs on all IPX interfa ces. acl show interface all- ipx Show static entry filters.
SmartSwi tch Router User Reference Manual 179 Chapter 11 QoS Configuration Guide QoS & Layer -2/Layer -3/Layer -4 Flow Overview The SSR allows netw ork managers to identify traf fic and set Quality of Service (QoS ) policies without co mpromising wire speed performance.
Chapter 11: QoS Configura tion Guide 180 SmartSwi tch Router User Reference Manu al For Layer -3 (IP and IPX) traf fic, you can defin e “flows”, blueprints or templates of IP and IPX packet hea ders.
SmartSwi tch Router User Reference Manual 181 Chapter 11: QoS Configuration Guid e Configur e Layer -2 QoS QoS polici es applied to layer-2 flows all ow you to as sign priorities based on source and destination MA C addresses.
Chapter 11: QoS Configura tion Guide 182 SmartSwi tch Router User Reference Manu al • Layer -3 source -destination flows • Layer -4 source -destination flows • Layer-4 application flo ws Configuring IP QoS Policies T o configure an IP QoS policy , perfo rm the following tasks: 1.
SmartSwi tch Router User Reference Manual 183 Chapter 11: QoS Configuration Guid e Setting an IPX QoS Policy T o set a QoS policy on an IPX traf fic flow , enter the following co mmand in Conf igure m.
Chapter 11: QoS Configura tion Guide 184 SmartSwi tch Router User Reference Manu al Monito ring Qo S The SSR pr ovides display of QoS statistics and configurations contained in the S SR. T o display QoS information, enter the fo llowing command in Enable mode: Show al l IP QoS flo ws qos show ip Show al l IPX QoS f lows.
SmartSwi tch Router User Reference Manual 185 Chapter 12 Performance Monitoring Guide Performanc e Monitoring Overview The SSR is a full wir e-speed layer -2, 3 and 4 switching r outer . As packets enter the S SR, layer-2, 3, and 4 flow tables ar e populated on each line card.
Chapter 12: Perform ance Monitori ng Guide 186 SmartSwi tch Router User Reference Manu al Show all L2 flows (for po rts in flow- bridging mode. l2-tables show all-flows Show information abo ut the master MAC table. l2-tables show mac-table-stats Show inf ormatio n about a particular MA C address.
SmartSwi tch Router User Reference Manual 187 Chapter 12: Perform ance Monitoring Guid e Config uring the SSR for Port Mirroring The SSR allows yo u to monitor port activity with Port Mirroring. Port Mirroring allows you to monitor the pe rformance a nd activities of one or more ports on the SSR through just a single, separate port.
Chapter 12: Perform ance Monitori ng Guide 188 SmartSwi tch Router User Reference Manu al.
SmartSwi tch Router User Reference Manual 189 Chapter 13 Hot Swapping Line Car ds and Contr ol Modules Hot Swapping Overview This chapter describes the ho t swapping functionality of the SSR. Hot swapping is the ability to replace a li ne card or Control Module while the SSR is op erating.
Chapter 13: Hot Swapping Line Cards and Control Mod ules 190 SmartSwi tch Router User Reference Manu al Deactivating the Line Car d T o deactiv ate the lin e card, do one of the fol lowing: • Press the Hot Swap button on the line card. The Hot Swap butto n is recessed in the line card' s fr ont panel.
SmartSwi tch Router User Reference Manual 191 Chapter 13: Ho t Swapping L ine Cards and Control Modu les W arning : Do not r emove the line card unless the Of fline LED is lit. Doing so can cause the SSR to crash. 2. Loosen the c aptive screw s on each side of the line car d.
Chapter 13: Hot Swapping Line Cards and Control Mod ules 192 SmartSwi tch Router User Reference Manu al The procedur e for hot swapping a co ntrol module is similar to the pr ocedur e for hot swapping a line car d. Y ou must deactivate the Control Mo dule, remove it from the SS R, and insert ano ther Contr ol Module or line ca rd in the slot.
SmartSwi tch Router User Reference Manual 193 Chapter 13: Ho t Swapping L ine Cards and Control Modu les Installing the C ontrol Module T o install a new Control Module or line card in to the slot: Note: Y ou can install eit her a line card or a Control Module in sl ot CM/1, but you ca n install only a Control Module in slot CM.
Chapter 13: Hot Swapping Line Cards and Control Mod ules 194 SmartSwi tch Router User Reference Manu al The Online LED goes out and the Offline LED lights. Figu re 16 show s the loc ation of the Offline LED and Hot Swap button on a Switching Fabric Module.
SmartSwi tch Router User Reference Manual 195 Chapter 14 VRRP Configuration Guide VRRP Overview This chapter explains how to set up and monitor the V irtual Router Redundancy Pr otocol (VRRP) on the SSR. VR RP is defined in RFC 2 338. End host systems on a LAN a r e often co nfigured to send packets to a statically co nfigured default ro uter .
Chapter 14: VRRP Configuration Guide 196 SmartSwi tch Router User Reference Manu al Basic VRRP Config uration Figure 17 shows a basic VRRP co nfiguration with a single virtual router . Routers R1 and R2 ar e both configur ed with one virtual r outer ( VRID=1 ).
SmartSwi tch Router User Reference Manual 197 Chapter 14 : VRRP Con figuration Guide In VRRP , the router that ow ns the IP addr ess associated with the virtual r outer is the Master . Any oth er routers that pa rticipate in this virtual router ar e Backups.
Chapter 14: VRRP Configuration Guide 198 SmartSwi tch Router User Reference Manu al Figur e 18. Symmetrical VRRP Configuration In this configuration, half the hosts use 10.0.0.1/ 16 as their default r oute, and half use 10.0.0.2/16 . IP addre ss 10.0.
SmartSwi tch Router User Reference Manual 199 Chapter 14 : VRRP Con figuration Guide On line 5, Router R1 associates IP addr ess 10.0.0.2/ 16 with virtual r outer VRID=2 . However , since Router R1 does not own IP address 10.0.0. 2/16, it is not the default Mast er for virtual r outer VRID=2 .
Chapter 14: VRRP Configuration Guide 200 SmartSwi tch Router User Reference Manu al Figur e 19. Multi-Backup VRRP Configuration In this configuration, Router R1 is the Master for virtual r outer VRID=1 and the primary Backup for virtual routers VRID=2 and VRID=3 .
SmartSwi tch Router User Reference Manual 201 Chapter 14 : VRRP Con figuration Guide Configuration of Router R1 The following is the configu ration file for Router R1 in Figure 19 . Router R1’s IP addr ess on interface test is 10.0.0 .1. Ther e ar e three virtual routers on this interface: • VRID=1 – IP addr ess=10.
Chapter 14: VRRP Configuration Guide 202 SmartSwi tch Router User Reference Manu al The following table shows the priorities for ea ch virtual router conf igured on Router R1. Configuration of Router R2 The following is the configu ration file for Router R2 in Figure 19 .
SmartSwi tch Router User Reference Manual 203 Chapter 14 : VRRP Con figuration Guide Note: Since 100 is the default priority , line 9, which sets the priority to 100, is actually unnecessary . It is in cluded for illustration purpos es only . Configuration of Router R3 The following is the configu ration file for Router R3 in Figure 19 .
Chapter 14: VRRP Configuration Guide 204 SmartSwi tch Router User Reference Manu al Setting the Back up Priority As described in “Multi-Backup Co nfigurati on” on pag e 199 , you can specify w hich Backup ro uter takes over when the Master r outer goes down by setting the priority f or the Backup routers.
SmartSwi tch Router User Reference Manual 205 Chapter 14 : VRRP Con figuration Guide Setting an Authen tication Key By default, no authentic ation of VRRP packets is performed on the SSR. Y ou can specify a clear-text password to be used to authenticate VRRP exchang es.
Chapter 14: VRRP Configuration Guide 206 SmartSwi tch Router User Reference Manu al ip-redundancy show The ip-redundancy show command r eports informa tion about a VRRP co nfiguration. T o display VRRP information, en ter the following co mmands in Enable mo de.
SmartSwi tch Router User Reference Manual 207 Chapter 14 : VRRP Con figuration Guide • A virtual router will respond to ARP r equests with a virtual MAC address.
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