Page 2 - DLSw Standard; IP Multicast, page 282; IP Multicast
Configuring Data-Link Switching Plus Technology Overview BC-282 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 DLSw Standard The DLSw standard, documented in RFC 1795, defines the switch-to-switch protocol between DLSw routers. The standard also defines a mechanism to terminat...
Page 3 - UDP Unicast; Peer groups and border peers
Configuring Data-Link Switching Plus Technology Overview BC-283 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 UDP Unicast DLSw Version 2 uses UDP unicast in response to an IP multicast. When address resolution packets (CANUREACH_EX, NETBIOS_NQ_ex, NETBIOS_ANQ, and DATAFRAME) ...
Page 4 - Local Acknowledgment
Configuring Data-Link Switching Plus Technology Overview BC-284 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 • UDP unicast support • Load balancing • Support for LLC1 circuits • Support for multiple bridge groups • Support for RIF Passthrough • SNA type of service feature su...
Page 5 - LLC2 Session without Local Acknowledgment; shows the LLC2 session with; LLC2 Session with Local Acknowledgment
Configuring Data-Link Switching Plus Technology Overview BC-285 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 Figure 127 LLC2 Session without Local Acknowledgment On backbone networks consisting of slow serial links, the T1 timer on end hosts could expire before the frames re...
Page 6 - Notes on Using LLC2 Local Acknowledgment
Configuring Data-Link Switching Plus Technology Overview BC-286 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 Enabling local acknowledgment for LLC2 has the following advantages: • Local acknowledgment for LLC2 solves the T1 timer problem without having to change any configur...
Page 7 - Avoid using NetBIOS applications on slow serial lines.; DLSw+ Support for Other SNA Features; In
Configuring Data-Link Switching Plus Technology Overview BC-287 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 If you are using NetBIOS applications, note that there are two NetBIOS timers—one at the link level and one at the next higher level. Local acknowledgment for LLC2 is...
Page 8 - VDLC Interaction with Higher-Layer Protocols; DLSw+ Configuration Task List; To configure DLSw+, complete the tasks in the following sections:; Defining a DLSw+ Local Peer for the Router; The following is a sample dlsw local peer statement:; Command
Configuring Data-Link Switching Plus DLSw+ Configuration Task List BC-288 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 Figure 129 VDLC Interaction with Higher-Layer Protocols The higher-layer protocols make no distinction between the VDLC and any other data-link control, but...
Page 9 - Defining a DLSw+ Remote Peer; TCP Encapsulation, page 289; TCP Encapsulation; Defines a remote peer with TCP encapsulation.
Configuring Data-Link Switching Plus DLSw+ Configuration Task List BC-289 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 Defining a DLSw+ Remote Peer Defining a remote peer in DLSw+ is optional, however, usually at least one side of a peer connection has a dlsw remote-peer sta...
Page 10 - TCP/IP with RIF Passthrough Encapsulation; Defines a remote peer with FST encapsulation.
Configuring Data-Link Switching Plus DLSw+ Configuration Task List BC-290 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 TCP/IP with RIF Passthrough Encapsulation To configure TCP/IP with RIF Passthrough encapsulation, use the following command in global configuration mode: Th...
Page 11 - Direct Encapsulation; DLSw+ Lite is described in the; DLSw Lite Encapsulation; Defines a remote peer with direct encapsulation.; Defines a remote peer with DLSw Lite encapsulation.
Configuring Data-Link Switching Plus DLSw+ Configuration Task List BC-291 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 Direct Encapsulation To configure direct encapsulation, use the following command in global configuration mode: Direct encapsulation is supported over High-...
Page 12 - Mapping DLSw+ to a Local Data-Link Control; Token Ring; Defines a virtual ring.; Defines SRB on interface.
Configuring Data-Link Switching Plus DLSw+ Configuration Task List BC-292 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 Mapping DLSw+ to a Local Data-Link Control In addition to configuring local and remote peers, you must map one of the following local data-link controls to ...
Page 13 - Ethernet; SDLC
Configuring Data-Link Switching Plus DLSw+ Configuration Task List BC-293 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 Ethernet Traffic that originates from Ethernet is picked up from the local Ethernet interface bridge group and transported across the DLSw+ network. Therefo...
Page 14 - Refer to the; QLLC
Configuring Data-Link Switching Plus DLSw+ Configuration Task List BC-294 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 Use the default option if you have more than 10 SDLC devices to attach to the DLSw+ network. To configure an SDLC multidrop line downstream, you configure t...
Page 15 - The following configuration enables QLLC connectivity for DLSw+:; FDDI; Configuring Advanced Features; Scalability, page 296; Specifies an interface as an X.25 device.
Configuring Data-Link Switching Plus DLSw+ Configuration Task List BC-295 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 • Remote X.25-attached SNA devices can access an FEP or an AS/400 over a Token Ring or over SDLC. For environments just beginning to migrate to LANs, our QL...
Page 16 - according to those capabilities.; Scalability; Peer Groups and Border Peers
Configuring Data-Link Switching Plus DLSw+ Configuration Task List BC-296 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 • Modes of Operation, page 306 ⎯ Dynamically detects the capabilities of the peer router and operates according to those capabilities. • Network Management,...
Page 18 - Enables peer groups and border peers.
Configuring Data-Link Switching Plus DLSw+ Configuration Task List BC-298 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 To define peer groups, configure border peers and assign the local peer to a peer cluster, use the following command in global configuration mode: Use the g...
Page 19 - Defines the maximum entries in a group cache.
Configuring Data-Link Switching Plus DLSw+ Configuration Task List BC-299 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 To configure peer-on-demand defaults, use the following command in global configuration mode: To define the maximum entries maintained in a border peer’s gr...
Page 20 - Explorer Firewalls; Displays content of group, local and remote caches.; Tunes an existing configuration parameter.
Configuring Data-Link Switching Plus DLSw+ Configuration Task List BC-300 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 To display the contents of the reachability caches, use the following command in privileged EXEC command mode: Use the group keyword to display the reachabi...
Page 21 - The following command configures the SNA DDR feature:; Disables UDP Unicast.
Configuring Data-Link Switching Plus DLSw+ Configuration Task List BC-301 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 SNA Dial-on-Demand Routing This feature allows you to run DLSw+ over a switched line and have the Cisco IOS software take the switched line down dynamically...
Page 22 - LLC1 Circuits; Configures a dynamic peer.
Configuring Data-Link Switching Plus DLSw+ Configuration Task List BC-302 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 LLC1 Circuits Support for LLC1 circuits more efficiently transports LLC1 UI traffic across a DLSw+ cloud. With LLC1 circuit support, the LLC1 unnumbered inf...
Page 23 - Availability; Load Balancing, page 303; Configures promiscuous peer defaults.
Configuring Data-Link Switching Plus DLSw+ Configuration Task List BC-303 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 To configure promiscuous peer defaults, use the following command in global configuration mode: Availability DLSw+ supports the following features that allo...
Page 24 - for a sample configuration.; Adjusts the circuit weight on the remote peer.; Sets the time to wait for all stations to respond to explorers.
Configuring Data-Link Switching Plus DLSw+ Configuration Task List BC-304 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 For multiple peer connections, peer costs must be applied. The DLSw+ Enhanced Load Balancing feature works only with the lowest (or equal) cost peers. For e...
Page 25 - Ethernet Redundancy; Configures transparent redundancy.
Configuring Data-Link Switching Plus DLSw+ Configuration Task List BC-305 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 Ethernet Redundancy The DLSw+ Ethernet Redundancy feature, introduced in Cisco IOS Release 12.0(5)T, provides redundancy and load balancing between multiple...
Page 26 - Modes of Operation; Note
Configuring Data-Link Switching Plus DLSw+ Configuration Task List BC-306 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 Note If the linger keyword is set to 0, all existing sessions on the backup router immediately drop when the primary recovers. If the linger keyword is omit...
Page 27 - Network Management; Static Paths, page 309; DLSw+ Ring List or Port List; shows how port lists are used to map traffic.
Configuring Data-Link Switching Plus DLSw+ Configuration Task List BC-307 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 Network Management There are several network management tools available to the user to help them more easily manage and troubleshoot their DLSw+ network. Ci...
Page 28 - Mapping Traffic Using Port Lists
Configuring Data-Link Switching Plus DLSw+ Configuration Task List BC-308 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 Figure 130 Mapping Traffic Using Port Lists The definition of a port list is optional. If you want all peers and all interfaces to receive all traffic, you ...
Page 29 - Static Paths
Configuring Data-Link Switching Plus DLSw+ Configuration Task List BC-309 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 Static Paths Static path definitions allow a router to setup circuits without sending explorers. The path specifies the peer to use to access a MAC address ...
Page 30 - Configuring DLSw+ Timers; Displays the DLSw+ configuration of a specific peer.
Configuring Data-Link Switching Plus Verifying DLSw+ BC-310 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 Configuring DLSw+ Timers To configure DLSw+ timers, use the following command in global configuration mode: See the DLSw+ Design and Implementation Guide “Customization” ...
Page 31 - Monitoring and Maintaining the DLSw+ Network
Configuring Data-Link Switching Plus Monitoring and Maintaining the DLSw+ Network BC-311 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 Alternately, to verify that DLSw+ is configured, issue the following command in privileged EXEC mode: The global DLSw+ configuration statemen...
Page 32 - DLSw+ Configuration Examples; The following sections provide DLSw+ configuration examples:
Configuring Data-Link Switching Plus DLSw+ Configuration Examples BC-312 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 See the DLSw+ Design and Implementation Guide “Using Show and Debug Commands” chapter and the Cisco IOS Bridging and IBM Networking Command Reference (Volume...
Page 33 - terminated, the ring group numbers do not have to be the same.; DLSw+ with Local Acknowledgment—Simple Configuration
Configuring Data-Link Switching Plus DLSw+ Configuration Examples BC-313 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 Figure 131 illustrates a DLSw+ configuration with local acknowledgment. Because the RIF is terminated, the ring group numbers do not have to be the same. Fig...
Page 35 - Router C
Configuring Data-Link Switching Plus DLSw+ Configuration Examples BC-315 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 ! interface serial 0 ip unnumbered tokenring 0 bandwidth 56 ! interface tokenring 0 ip address 128.207.150.8 255.255.255.0 ring-speed 16 source-bridge 3 14 3...
Page 38 - Router E; DLSw+ with SDLC Multidrop Support Configuration Examples
Configuring Data-Link Switching Plus DLSw+ Configuration Examples BC-318 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 no ip address ring-speed 16 source-bridge 92 1 2000 source-bridge spanning ! .interface tokenring 0/2 no ip address ring-speed 16 source-bridge 93 1 2000 sou...
Page 40 - DLSw+ Translation Between Ethernet and Token Ring
Configuring Data-Link Switching Plus DLSw+ Configuration Examples BC-320 Cisco IOS Bridging and IBM Networking 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 10.2.2.2 255.255.255....
Page 41 - Router B; DLSw+ Translation Between FDDI and Token Ring
Configuring Data-Link Switching Plus DLSw+ Configuration Examples BC-321 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 dlsw bridge-group 5 ! interface loopback 0 ip address 128.207.111.1 255.255.255.0 interface Ethernet 0 no ip address bridge-group 5 ! bridge 5 protocol ieee ...
Page 42 - DLSw+ Translation Between SDLC and Token Ring Media Example; DLSw+ Translation Between SDLC and Token Ring Media
Configuring Data-Link Switching Plus DLSw+ Configuration Examples BC-322 Cisco IOS Bridging and IBM Networking 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 132.11.11.3 dlsw rem...
Page 44 - DLSw+ over Frame Relay Configuration Example; illustrates a DLSw+ configuration over Frame Relay with; DLSw+ over Frame Relay; The following configuration examples are based on
Configuring Data-Link Switching Plus DLSw+ Configuration Examples BC-324 Cisco IOS Bridging and IBM Networking 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 extends the DLSw+ capabilities...
Page 45 - DLSw+ over QLLC Configuration Examples; The following three examples describe QLLC support for DLSw+.
Configuring Data-Link Switching Plus DLSw+ Configuration Examples BC-325 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 interface serial 0 mtu 3000 no ip address encapsulation frame-relay frame-relay lmi-type ansi frame-relay map dlsw 30 DLSw+ over QLLC Configuration Examples ...
Page 46 - Example 3; DLSw+ with RIF Passthrough Configuration Example; Network Configuration with RIF Passthrough
Configuring Data-Link Switching Plus DLSw+ Configuration Examples BC-326 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 Example 3 In this example, two different X.25 resources want to communicate over X.25 to the same FEP. In the router attached to the X.25 network, every X.25...
Page 47 - DLSw+ with Enhanced Load Balancing Configuration Example; shows DLSw+ with the Enhanced Load Balancing feature.; DLSw+ with Enhanced Load Balancing; RTR B
Configuring Data-Link Switching Plus DLSw+ Configuration Examples BC-327 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 DLSw+ with Enhanced Load Balancing Configuration Example Figure 140 shows DLSw+ with the Enhanced Load Balancing feature. Figure 140 DLSw+ with Enhanced Load...
Page 48 - DLSw+ Peer Cluster Feature Configuration Example; DLSw+ Peer Cluster Feature; MPA; Peer cluster
Configuring Data-Link Switching Plus DLSw+ Configuration Examples BC-328 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 DLSw+ Peer Cluster Feature Configuration Example Figure 141 shows a DLSw+ network configured with the DLSw+ Peer Clusters feature. Figure 141 DLSw+ Peer Clus...
Page 49 - DLSW+ RSVP Bandwidth Reservation Feature Configuration Example; DLSw+ RSVP Bandwidth Reservation Feature Configured; DLSWRTR 1
Configuring Data-Link Switching Plus DLSw+ Configuration Examples BC-329 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 DLSW+ RSVP Bandwidth Reservation Feature Configuration Example Figure 142 shows a DLSw+ network with the DLSw+ RSVP Bandwidth Reservation feature configured....
Page 50 - shows a DLSw+ border peer network configured with DLSw+ RSVP.; DLSw+ RSVP Bandwidth Reservation Feature in a Border Peer Network; DLSWRTR1
Configuring Data-Link Switching Plus DLSw+ Configuration Examples BC-330 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 DLSw+ RSVP Bandwidth Reservation Feature with Border Peers Configuration Example Figure 143 shows a DLSw+ border peer network configured with DLSw+ RSVP. Fig...
Page 51 - DLSw+ with Ethernet Redundancy Configuration Example; DLSw+ with Ethernet Redundancy
Configuring Data-Link Switching Plus DLSw+ Configuration Examples BC-331 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 The following output of the show ip rsvp res command on the DLSWRTR1 verifies that the RSVP reservation was successful: DLSWRTR1# show ip rsvp rese To From P...
Page 52 - Router D; DLSw+ with Ethernet Redundancy in a Switched Environment
Configuring Data-Link Switching Plus DLSw+ Configuration Examples BC-332 Cisco IOS Bridging and IBM Networking 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 150.150.2.2 255.255.255.0 dlsw transparent redunda...