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BC-281 Cisco IOS Bridging and IBM Ne tw orking Configuration Guide 78-11737-02 Configuring Data-Link Switching Plus This chapter describes ho w to conf igure data-link sw itching plus (D LSw+), Cisco’ s implementation of the DLSw standard for Systems Network Architect ure (SN A) and NetBIOS de vices.
Configuring Data-Link Switching Plus Technology Overview BC-282 Cisco IOS Bridging and IBM Ne tw orking Configuration Guide 78-11737-02 DLSw Standard The DLSw standard, documented in RFC 1795 , defi nes the switch-to-switch protocol between DLSw routers.
Configuring Data-L ink Switching Plus Technology Overview BC-283 Cisco IOS Bridging and IBM Networking Con figu ratio n Guide 78-11737-02 UDP Unicast DLSw V ersion 2 uses UDP unicast in response to an IP multicast.
Configuring Data-Link Switching Plus Technology Overview BC-284 Cisco IOS Bridging and IBM Ne tw orking Configuration Guide 78-11737-02 • UDP unicast support • Load balancing • Support for LLC1 .
Configuring Data-L ink Switching Plus Technology Overview BC-285 Cisco IOS Bridging and IBM Networking Con figu ratio n Guide 78-11737-02 Figure 127 LLC2 Session without Local Acknowledgment On backbo.
Configuring Data-Link Switching Plus Technology Overview BC-286 Cisco IOS Bridging and IBM Ne tw orking Configuration Guide 78-11737-02 Enabling local ackn owledgment for LLC2 has t he following adv antages: • Local ackno wledgment for LLC2 solves the T1 ti mer problem without having to change any configuration on the end nodes.
Configuring Data-L ink Switching Plus Technology Overview BC-287 Cisco IOS Bridging and IBM Networking Con figu ratio n Guide 78-11737-02 If you are using NetBIOS applications, note that there are two NetBIOS timers—o ne at the link le vel and one at th e next higher le vel.
Configuring Data-Link Switching Plus DLSw+ Configuration Task List BC-288 Cisco IOS Bridging and IBM Ne tw orking Configuration Guide 78-11737-02 Figure 129 VDLC Interaction with Higher -La yer Prot o.
Configuring Data-L ink Switching Plus DLSw+ Configuration Task List BC-289 Cisco IOS Bridging and IBM Networking Con figu ratio n Guide 78-11737-02 Defining a DLSw+ Remote Peer Defin ing a remote peer in DLSw+ is optional, ho we ver , usually at least one side of a peer co nnection has a dlsw remote-peer statemen t.
Configuring Data-Link Switching Plus DLSw+ Configuration Task List BC-290 Cisco IOS Bridging and IBM Ne tw orking Configuration Guide 78-11737-02 TCP/IP with RIF Passthrough Encapsulation T o configur.
Configuring Data-L ink Switching Plus DLSw+ Configuration Task List BC-291 Cisco IOS Bridging and IBM Networking Con figu ratio n Guide 78-11737-02 Direct Encapsulation T o configure direct encapsulat.
Configuring Data-Link Switching Plus DLSw+ Configuration Task List BC-292 Cisco IOS Bridging and IBM Ne tw orking Configuration Guide 78-11737-02 Mapping DLSw+ to a Local Data-Link Control In addition.
Configuring Data-L ink Switching Plus DLSw+ Configuration Task List BC-293 Cisco IOS Bridging and IBM Networking Con figu ratio n Guide 78-11737-02 Ethernet T raff ic that origina tes from Ethe rnet is picked up from the local Ethernet interface bridge group and transported across th e DLSw+ network.
Configuring Data-Link Switching Plus DLSw+ Configuration Task List BC-294 Cisco IOS Bridging and IBM Ne tw orking Configuration Guide 78-11737-02 Use the default option if you ha ve more than 10 SDLC d evices to attach to the DLSw+ n etwork.
Configuring Data-L ink Switching Plus DLSw+ Configuration Task List BC-295 Cisco IOS Bridging and IBM Networking Con figu ratio n Guide 78-11737-02 • Remote X.25-attached SNA de vices can acce ss an FEP or an AS/400 over a T oken Ring or o ver SDLC.
Configuring Data-Link Switching Plus DLSw+ Configuration Task List BC-296 Cisco IOS Bridging and IBM Ne tw orking Configuration Guide 78-11737-02 • Modes of Operation, page 306 ⎯ Dynamically detects the capabilities of the peer rout er and operates according to those capabili ties.
Configuring Data-L ink Switching Plus DLSw+ Configuration Task List BC-297 Cisco IOS Bridging and IBM Networking Con figu ratio n Guide 78-11737-02 The DLSw+ Peer Clusters fe ature is configured l ocally on the member peer or on a border peer .
Configuring Data-Link Switching Plus DLSw+ Configuration Task List BC-298 Cisco IOS Bridging and IBM Ne tw orking Configuration Guide 78-11737-02 T o define peer groups, conf igure border peers and a .
Configuring Data-L ink Switching Plus DLSw+ Configuration Task List BC-299 Cisco IOS Bridging and IBM Networking Con figu ratio n Guide 78-11737-02 T o configure peer -on-demand defaults, use the fo l.
Configuring Data-Link Switching Plus DLSw+ Configuration Task List BC-300 Cisco IOS Bridging and IBM Ne tw orking Configuration Guide 78-11737-02 T o display the contents of the reachabili ty caches, use the followi ng command in privile ged EXEC command mode: Use the group k eyword to display th e reachability information for the bord er peer .
Configuring Data-L ink Switching Plus DLSw+ Configuration Task List BC-301 Cisco IOS Bridging and IBM Networking Con figu ratio n Guide 78-11737-02 SNA Dial-on-Demand Routing This feature allo w s you to run DLSw+ over a switch ed line and ha ve the Cisco IOS software tak e the switched line do wn dynamically when it is not in use.
Configuring Data-Link Switching Plus DLSw+ Configuration Task List BC-302 Cisco IOS Bridging and IBM Ne tw orking Configuration Guide 78-11737-02 LLC1 Circuits Support for LLC1 circuits more ef ficiently transp orts LLC1 UI traff ic across a DLSw+ cloud.
Configuring Data-L ink Switching Plus DLSw+ Configuration Task List BC-303 Cisco IOS Bridging and IBM Networking Con figu ratio n Guide 78-11737-02 T o c onfigure promiscuous p eer defaults, use the f.
Configuring Data-Link Switching Plus DLSw+ Configuration Task List BC-304 Cisco IOS Bridging and IBM Ne tw orking Configuration Guide 78-11737-02 For multiple peer connections, peer costs must be applied. The DLSw+ Enhanced Load Balancing feature works only with the lo west (or equal) cost peers.
Configuring Data-L ink Switching Plus DLSw+ Configuration Task List BC-305 Cisco IOS Bridging and IBM Networking Con figu ratio n Guide 78-11737-02 Ethernet Redundancy The DLSw+ Ethernet Redundanc y feature, introdu ced in Cisco IOS Release 12.0(5)T , provides redundanc y and load balancing betw een multiple DLSw+ peers in an Ethernet en vironment.
Configuring Data-Link Switching Plus DLSw+ Configuration Task List BC-306 Cisco IOS Bridging and IBM Ne tw orking Configuration Guide 78-11737-02 Note If the linger ke yword is set to 0, all e xisting sessions on the backup router immediately drop when the primary recove rs.
Configuring Data-L ink Switching Plus DLSw+ Configuration Task List BC-307 Cisco IOS Bridging and IBM Networking Con figu ratio n Guide 78-11737-02 Network Management There are se v eral network management tools a vailable t o the user to help them more easily manage and troubleshoot their DLSw+ netw ork.
Configuring Data-Link Switching Plus DLSw+ Configuration Task List BC-308 Cisco IOS Bridging and IBM Ne tw orking Configuration Guide 78-11737-02 Figure 130 Mapping T raf fic Using Por t Lists The defi nition of a port list is optio nal. If you want all peers and all interf aces to receiv e all traff ic, you do not ha ve to defi ne a port list.
Configuring Data-L ink Switching Plus DLSw+ Configuration Task List BC-309 Cisco IOS Bridging and IBM Networking Con figu ratio n Guide 78-11737-02 Static Paths Static path def initions allo w a router to setup circui ts without send ing explorers. The path specif ies the peer to use to access a MAC address or NetBIOS name.
Configuring Data-Link Switching Plus Verifying DLSw+ BC-310 Cisco IOS Bridging and IBM Ne tw orking Configuration Guide 78-11737-02 Configuring DLSw+ Timers T o configure DLSw+ timers, use th e follow.
Configuring Data-L ink Switching Plus Monitoring and Maintaining th e DLSw+ Network BC-311 Cisco IOS Bridging and IBM Networking Con figu ratio n Guide 78-11737-02 Alternately , to verify that DLSw+ i.
Configuring Data-Link Switching Plus DLSw+ Configuration Examp les BC-312 Cisco IOS Bridging and IBM Ne tw orking Configuration Guide 78-11737-02 See the DLSw+ Design and Im plementation Guide “Using Sho w and Debug Commands” chapter and the Cisco IOS Bridging and IBM Networ king Command Refer ence (V olume 1 of 2) for details of the commands.
Configuring Data-L ink Switching Plus DLSw+ Configuration Examples BC-313 Cisco IOS Bridging and IBM Networking Con figu ratio n Guide 78-11737-02 Figure 131 illu strates a DLSw+ configuration with local ackn owledgment. Because the RIF is terminated, the ring group numbers do not have to be the same.
Configuring Data-Link Switching Plus DLSw+ Configuration Examp les BC-314 Cisco IOS Bridging and IBM Ne tw orking Configuration Guide 78-11737-02 DLSw+ Using TCP Encapsulation with Local Acknowledgment—Peer Group Configuration Example 1 Figure 132 illustrates border peers with TCP encapsula tion.
Configuring Data-L ink Switching Plus DLSw+ Configuration Examples BC-315 Cisco IOS Bridging and IBM Networking Con figu ratio n Guide 78-11737-02 ! interface serial 0 ip unnumbered tokenring 0 bandwidth 56 ! interface tokenring 0 ip address 128.207.150.
Configuring Data-Link Switching Plus DLSw+ Configuration Examp les BC-316 Cisco IOS Bridging and IBM Ne tw orking Configuration Guide 78-11737-02 DLSw+ Using TCP Encapsulation with Local Acknowledgment—Peer Group Configuration Example 2 Figure 133 illust rates a peer group confi guration that allo ws an y-to-any connection e xcept for Router B.
Configuring Data-L ink Switching Plus DLSw+ Configuration Examples BC-317 Cisco IOS Bridging and IBM Networking Con figu ratio n Guide 78-11737-02 dlsw local-peer peer-id 150.150.98.1 group 2 dlsw remote-peer 0 tcp 150.150.100.1 ! interface loopback 0 ip address 150.
Configuring Data-Link Switching Plus DLSw+ Configuration Examp les BC-318 Cisco IOS Bridging and IBM Ne tw orking Configuration Guide 78-11737-02 no ip address ring-speed 16 source-bridge 92 1 2000 source-bridge spanning ! .
Configuring Data-L ink Switching Plus DLSw+ Configuration Examples BC-319 Cisco IOS Bridging and IBM Networking Con figu ratio n Guide 78-11737-02 clockrate 19200 sdlc role primary sdlc vmac 4000.1234.5600 sdlc address C1 sdlc xid C1 05DCCCC1 sdlc partner 4001.
Configuring Data-Link Switching Plus DLSw+ Configuration Examp les BC-320 Cisco IOS Bridging and IBM Ne tw orking Configuration Guide 78-11737-02 Router A source-bridge ring-group 1111 dlsw local-peer peer-id 10.2.2.2 dlsw remote-peer 0 tcp 10.1.1.1 interface loopback 0 ip address 10.
Configuring Data-L ink Switching Plus DLSw+ Configuration Examples BC-321 Cisco IOS Bridging and IBM Networking Con figu ratio n Guide 78-11737-02 dlsw bridge-group 5 ! interface loopback 0 ip address 128.
Configuring Data-Link Switching Plus DLSw+ Configuration Examp les BC-322 Cisco IOS Bridging and IBM Ne tw orking Configuration Guide 78-11737-02 interface fddi 0 no ip address source-bridge 26 1 10 source-bridge spanning Router B source-bridge ring-group 10 dlsw local peer peer-id 132.
Configuring Data-L ink Switching Plus DLSw+ Configuration Examples BC-323 Cisco IOS Bridging and IBM Networking Con figu ratio n Guide 78-11737-02 ! interface loopback 0 ip address 150.150.10.2 255.255.255.0 interface serial 8 ip address 150.150.11.2 255.
Configuring Data-Link Switching Plus DLSw+ Configuration Examp les BC-324 Cisco IOS Bridging and IBM Ne tw orking Configuration Guide 78-11737-02 source-bridge spanning ! router eigrp 202 network 150.150.0.0 DLSw+ over Frame Relay Configuration Example Frame Relay support e xtends the DLSw+ capabilities to include Frame Relay in direct mode.
Configuring Data-L ink Switching Plus DLSw+ Configuration Examples BC-325 Cisco IOS Bridging and IBM Networking Con figu ratio n Guide 78-11737-02 interface serial 0 mtu 3000 no ip address encapsulati.
Configuring Data-Link Switching Plus DLSw+ Configuration Examp les BC-326 Cisco IOS Bridging and IBM Ne tw orking Configuration Guide 78-11737-02 Example 3 In this e xample, two dif ferent X.25 resources want to communicate ove r X.25 to the same FEP .
Configuring Data-L ink Switching Plus DLSw+ Configuration Examples BC-327 Cisco IOS Bridging and IBM Networking Con figu ratio n Guide 78-11737-02 DLSw+ with Enhanced Load Balanc ing Configuration Example Figure 140 sho ws DLSw+ w ith the Enha nced Load B alancing feature.
Configuring Data-Link Switching Plus DLSw+ Configuration Examp les BC-328 Cisco IOS Bridging and IBM Ne tw orking Configuration Guide 78-11737-02 DLSw+ Peer Cluster Feature Configuration Example Figure 141 sho ws a DLSw+ network configured with the DLSw+ Peer Clusters feature.
Configuring Data-L ink Switching Plus DLSw+ Configuration Examples BC-329 Cisco IOS Bridging and IBM Networking Con figu ratio n Guide 78-11737-02 DLSW+ RSVP Bandwidth Reservation Feature Configuration Example Figure 142 sho ws a DLSw+ netw ork with the DLSw+ RSVP Bandwidth Reservatio n feature conf igured.
Configuring Data-Link Switching Plus DLSw+ Configuration Examp les BC-330 Cisco IOS Bridging and IBM Ne tw orking Configuration Guide 78-11737-02 DLSw+ RSVP Bandwidth Reservation Feat ure with Border Peers Configuration Example Figure 143 sho ws a DLSw+ border peer network co nfigured with DLSw+ RSVP .
Configuring Data-L ink Switching Plus DLSw+ Configuration Examples BC-331 Cisco IOS Bridging and IBM Networking Con figu ratio n Guide 78-11737-02 The follo wing output of the show ip rsvp r es comman.
Configuring Data-Link Switching Plus DLSw+ Configuration Examp les BC-332 Cisco IOS Bridging and IBM Ne tw orking Configuration Guide 78-11737-02 dlsw remote-peer 0 tcp 10.1.17.1 interface loopback 0 ip address 10.2.24.3 255.255.255.0 int e1 ip address 150.
Configuring Data-L ink Switching Plus DLSw+ Configuration Examples BC-333 Cisco IOS Bridging and IBM Networking Con figu ratio n Guide 78-11737-02 Router A dlsw local peer peer-id 10.2.17.1 dlsw remote-peer 0 tcp 10.3.2.1 dlsw transparent switch-support interface loopback 0 ip address 10.
Configuring Data-Link Switching Plus DLSw+ Configuration Examp les BC-334 Cisco IOS Bridging and IBM Ne tw orking Configuration Guide 78-11737-02.
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