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This chapter explains the function and syntax of the DLSw+ commands. For more information about defaults and usage guidelines, see the corresponding chapter of the Cisco IOS Bridging and IBM Networking Command Reference, Volume 1, Release 12.1.
To cause all DLSw+ circuits to be closed, use the clear dlsw circuit privileged EXEC command.
clear dlsw circuit [circuit-id]
Syntax Description
circuit-id Circuit ID for a specific remote circuit. The valid range is 0 to 4294967295.
To remove all entries from the DLSw+ reachability cache, use the clear dlsw reachability privileged EXEC command.
clear dlsw reachabilitySyntax Description
This command has no arguments or keywords.
To reset to zero the number of frames that have been processed in the local, remote, and group cache, use the clear dlsw statistics privileged EXEC command.
clear dlsw statisticsSyntax Description
This command has no arguments or keywords.
To change the single-route explorer to an all-route broadcast for NetBIOS, use the dlsw allroute-netbios global configuration command. Use the no form of this command to return to the default single-route explorer.
dlsw allroute-netbiosSyntax Description
This command has no arguments or keywords.
To change the single-route explorer, use the dlsw allroute-sna global configuration command. Use the no form of this command to return to the default single-route explorer.
dlsw allroute-snaSyntax Description
This command has no arguments or keywords.
To map traffic on the local Ethernet bridge group interface to remote peers, use the dlsw bgroup-list global configuration command. Use the no form of this command to cancel the map.
dlsw bgroup-list list-number bgroups number
Syntax Description
list-number The ring list number. This number is subsequently used in the dlsw remote-peer command to define the segment to which the bridge-group should be applied. The valid range is 1 to 255. bgroups number The transparent bridge group list number. The valid range is 1 to 63.
To link DLSw+ to the bridge group of the Ethernet LANs, use the dlsw bridge-group global configuration command. Use the no form of this command to disable the link.
dlsw bridge-group group-number [llc2 [N2 number] [ack-delay-time milliseconds] [ack-max number] [idle-time milliseconds] [local-window number] [t1-time milliseconds] [tbusy-time milliseconds] [tpf-time milliseconds] [trej-time milliseconds] [txq-max number] [xid-neg-val-time milliseconds] [xid-retry-time milliseconds]] [locaddr-priority lu address priority list number] [sap-priority priority list number]
Syntax Description
group-number Transparent bridge group to which DLSw+ will be attached. The valid range is 1 to 63. llc2 (Optional) LLC2 interface subcommands. N2 number (Optional) Number of times router should retry various operations. The valid range is 1 to 255. ack-delay-time milliseconds (Optional) Maximum time the router allows incoming I-frames to stay unacknowledged. The valid range is 1 to 60000. ack-max number (Optional) Maximim number of I-frames received before an acknowledgment must be sent. The valid range is 1 to 255. idle-time milliseconds (Optional) Frequency of polls during periods of idle traffic. The valid range is 1 to 60000. local-window number (Optional) Maximum number of I-frames to send before waiting for an acknowledgment. The valid range is 1 to 127. t1-time milliseconds (Optional) Amount of time router waits for an acknowledgment to transmitted I-frames. The valid range is 1 to 60000. tbusy-time milliseconds (Optional) Amount of time router waits while the other LLC2 station is in a busy state before attempting to poll the remote station. The valid range is 1 to 60000. tpf-time milliseconds (Optional) Amount of time router waits for a final response to a poll frame before re-sending the original poll frame. The valid range is 1 to 60000. trej-time milliseconds (Optional) Amount of time router waits for a resend of a rejected frame before sending the reject command. The valid range is 1 to 60000. txq-max number (Optional) Queue for holding LLC2 information frames. The valid range is 20 to 200. xid-neg-val-time milliseconds] (Optional) Frequency of exchange of identification (XID). The valid range is 1 to 60000. xid-retry-time milliseconds (Optional) Amount of time router waits for reply to XID. The valid range is 1 to 60000. locaddr-priority lu address priority list number (Optional) Assigns an input SNA LU Addr priority list to this bridge group. The valid range is 1 to 10. sap-priority priority list number (Optional) Assigns an input sap priority list to this bridge group. The valid range is 1 to 10.
To prevent dlsw from caching netbios names when a datagram (0x08) NetBIOS command is received, use the dlsw cache-ignore-netbios-datagram global configuration command. Use the no form of this command to remove the filter.
dlsw cache-ignore-netbios-datagramSyntax Description
This command has no arguments or keywords.
To disable DLSw+ without altering the configuration, use the dlsw disable global configuration command. Use the no form of this command to reenable DLSw+.
dlsw disableSyntax Description
This command has no arguments or keywords.
To specify how DLSw+ handles duplicate paths to the same Media Access Control (MAC) address or NetBIOS name, use the dlsw duplicate-path-bias global configuration command. Use the no form of this command to return to the default (fault-tolerance).
dlsw duplicate-path-bias [load-balance]
Syntax Description
load-balance (Optional) Specifies that sessions are load-balanced across duplicate paths.
To disable the border peer caching feature, use the dlsw group cache disable global configuration command. Use the no form of this command to return to the default peer caching feature.
dlsw group-cache disableSyntax Description
This command has no arguments or keywords.
To limit the number of entries in the group cache, use the dlsw group-cache max entries global configuration command. Use the no form of this command to return to the default.
dlsw group-cache max-entries number
Syntax Description
number Maximum number of entries allowed in the group cache. The valid range is 0 through 12000. If the value is set to 0, then there is no limit to the number of entries. The default is 2000.
To configure a list of service access points (SAPs) not locally reachable by the router, use the dlsw icannotreach saps global configuration command. Use the no form of this command to remove the list.
dlsw icannotreach saps sap...
Syntax Description
sap. . . One or more SAPs.
To configure a resource that is locally reachable by this router, use the dlsw icanreach global configuration command. Use the no form of this command to remove the resource.
dlsw icanreach {mac-exclusive | netbios-exclusive [remote] | mac-address mac-addr [mask mask] | netbios-name name | saps}
Syntax Description
mac-exclusive Router can reach only the MAC addresses that are user configured. netbios-exclusive Router can reach only the NetBIOS names that are user configured. remote (Optional) Gives the NetBIOS workstations (that are local to the router and that are not already defined in the dlsw icanreach netbios-name name statement) access to remote servers. mac-address mac-addr Configures a MAC address that this router can locally reach. mask mask (Optional) MAC address mask in hexadecimal h.h.h. The "f" value represents the "don't care" bit and the "0" value represents the "care" bit. The mask indicates which bits in the MAC address are relevant. netbios-name name Configures a NetBIOS name that this router can locally reach. Wildcards (*) are allowed at the end of the name. Trailing white spaces are ignored when comparing against an actual name in a NetBIOS frame. saps (Optional) Array of SAPs.
To prevent the receiver not ready (RNR) message from being sent while establishing an LLC2 connection, use the dlsw llc2 nornr global configuration command. Use the no form of this command to return to the default.
dlsw llc2 nornrSyntax Description
This command has no arguments or keywords.
To enable load balancing and to select either round robin or circuit-count based load balancing, use the dlsw load-balance global configuration command. Use the no form of this command to disable the previous assignments.
dlsw load-balance [round-robin | circuit-count circuit weight]
Syntax Description
round-robin (Optional) Enables round-robin type of load balancing. circuit-count circuit weight (Optional) Enables the DLSw+ Enhanced Load Balancing feature. The value represents the default circuit-weight to be used for the peers that are not explicitly configured with a circuit-weight value in the dlsw remote-peer tcp command. The valid range is 1 to 100.
To define the parameters of the DLSw+ local peer, use the dlsw local-peer global configuration command. Use the no form of this command to cancel the definitions.
dlsw local-peer [cluster cluster-id] [peer-id ip-address] [group group] [border] [cost cost] [lf size] [keepalive seconds] [passive] [promiscuous] [biu-segment] [init-pacing-window size] [max-pacing-window size]
Syntax Description
cluster cluster-id (Optional) Implements the DLSw+ Peer Clusters feature and defines the router as part of a particular cluster. The valid range is 1 to 255. peer-id ip-address (Optional) Local peer IP address. This address is required when Fast-Sequenced Transport (FST) or TCP is used. group group (Optional) Peer group number for this router. The valid range is 1 to 255. border (Optional) Enables the router as a border peer. The group option must be specified to use the border peer option. cost cost (Optional) Peer cost advertised to remote peers in the capabilities exchange. The valid range is 1 to 5. lf size (Optional) Largest frame size for this local peer. Valid maximum frame sizes are as follows: keepalive seconds (Optional) Default remote peer keepalive interval in seconds. The valid range is 0 to 1200 seconds. The default is 30 seconds. The value 0 means no keepalives. passive (Optional) Specifies that this router does not initiate remote peer connections to configured peers. promiscuous (Optional) Accept connections from nonconfigured remote peers. biu-segment (Optional) DLSw+ spoofs the maximum receivable I-frame size in XID so that each end station sends its largest frame. init-pacing-window size (Optional) Size of the initial pacing window as defined in RFC 1795. The valid range is 1 to 2000. max-pacing-window size (Optional) Maximum size of the pacing window as defined in RFC 1795. The valid range is 1 to 2000.
To configure a static MAC address, use the dlsw mac-addr global configuration command. Use the no form of this command to cancel the configuration.
dlsw mac-addr mac-addr {ring ring-number | remote-peer {interface serial number | ip-address ip-address}| rif rif-string | group group}
Syntax Description
mac-addr Specifies the MAC address. ring ring-number Maps the MAC address to a ring number or ring group number. The valid range is 1 to 4095. remote-peer Maps the MAC address to a specific remote peer. interface serial number Specifies the remote peer by direct serial interface. ip-address ip-address Specifies the remote peer by IP address. rif rif-string Maps the MAC address to a local interface using a RIF string. The RIF string describes a source-routed path from the router to the MAC address. It starts at the router's ring-group and ends on the ring where the MAC address is located. The direction should be from the router toward the MAC address. See IEEE 802.5 standard for details. group group Maps the MAC address to a specified peer group. Valid numbers are in the range 1 to 255.
To enable caching of multiple RIFs per interface, use the dlsw max-multiple-rifs global configuration command. Use the no form of this command to turn off the feature.
dlsw max-multiple-rifs multiple-rifs-per-port
Syntax Description
multiple-rifs-per-port Number of multiple RIF entries per interface. The valid range is 1 to 4. The default value is 1.
To enable the NetBIOS dial-on-demand routing (DDR) feature, use the dlsw netbios-keepalive-filter global configuration command. Use the no form of this command to turn off the feature.
dlsw netbios-keepalive-filterSyntax Description
This command has no arguments or keywords.
To configure a static NetBIOS name, use the dlsw netbios-name global configuration command. Use the no form of this command to cancel the configuration.
dlsw netbios-name netbios-name {ring ring-number | remote-peer {interface serial number | ip-address ip-address}| rif rif-string | group group}
Syntax Description
netbios-name Specifies the NetBIOS name. Wildcards are allowed. ring ring number Maps the NetBIOS name to a ring number or ring group number. Test frames for this name will only be sent to LAN ports in this ring group. remote-peer Maps the NetBIOS name to a specific remote peer. interface serial number Specifies the remote peer by direct interface. ip-address ip-address Specifies the remote peer by IP address. rif rif- string Maps the MAC address to a local interface using a RIF string. The RIF string describes a source-routed path from the router to the MAC address. It starts at the router's ring-group and ends on the ring where the MAC address is located. The direction should be from the router towards the MAC address. See the IEEE 802.5 standard for details. group group Maps the NetBIOS name to a specified peer group. Valid numbers are in the range 1 to 255.
To configure defaults for peer-on-demand transport, use the dlsw peer-on-demand-defaults global configuration command. Use the no form of this command to disable the previous assignment.
dlsw peer-on-demand-defaults [fst] [bytes-netbios-out bytes-list-name] [cost cost] [dest-mac destination-mac-address] [dmac-output-list access-list-number] [host-netbios-out host-list-name] [inactivity minutes] [keepalive seconds] [lf size] [lsap-output-list list] [port-list port-list-number] [priority] [rsvp {global | average-bit-rate maximum burst}] [tcp-queue-max]
Syntax Description
fst (Optional) Use FST encapsulation for all peers-on-demand established by this router. bytes-netbios-out bytes-list-name (Optional) Configures NetBIOS bytes output filtering for peer-on-demand peers. The bytes-list-name is the name of the previously defined NetBIOS bytes access list filter. cost cost (Optional) Specifies the cost to reach peer-on-demand peer. The valid range is 1 to 5. The default cost is 3. dest-mac destination-mac- address (Optional) Specifies the exclusive destination MAC address for peer-on-demand peers. dmac-output-list access- list-number (Optional) Specifies the filter output destination MAC addresses. host-netbios-out host-list-name (Optional) Configures NetBIOS host output filtering for peer-on-demand peers. The host-list-name is the name of the previously defined NetBIOS host access list filter. inactivity minutes (Optional) Configures the length of time after the peer's circuit count is 0 that the peer-on-demand is disconnected. The valid range is 0 to1440 seconds. The default is 600 seconds. keepalive seconds (Optional) Configures the peer-on-demand keepalive interval. The valid range is 0 to 1200 seconds. The default is 30 seconds. lf size (Optional) Largest frame size for this remote peer. Valid maximum frame sizes are the following: lsap-output-list list (Optional) Configures local service access point (LSAP) output filtering for peer-on-demand peers. Valid numbers are in the range 200 to 299. port-list port-list-number (Optional) Configures a port list for peer-on-demand peers. Valid numbers are in the range 0 to 4095. priority (Optional) Configures prioritization for peer-on-demand peers. The default state is off. rsvp global (Optional) Sets the RSVP parameters to the global values specified in the dlsw rsvp command. rsvp average-bit-rate (Optional) Average bit rate kilobits per second to reserve up to 75 percent of total bits on the interface. The valid range is 0 to 4,294,967. rsvp maximum-burst (Optional) Maximum burst size (kilobytes of data in queue). The valid range is 0 to 4,294,967. tcp-queue-max (Optional) Configures the maximum output TCP queue size for peer-on-demand peers.
To map traffic on a local interface (Token Ring or serial) to remote peers, use the dlsw port-list global configuration command. Use the no form of this command to disable the previous map assignment.
dlsw port-list list-number type number
Syntax Description
list-number Port list number. The valid range is 1 to 255. type Interface type. number Interface number.
To configure defaults for promiscuous transport, use the dlsw prom-peer-defaults global configuration command. Use the no form of this command to disable the previous assignment.
dlsw prom-peer-defaults [fst] [bytes-netbios-out bytes-list-name] [cost cost] [dest-mac destination-mac-address] [dmac-output-list access-list-number] [host-netbios-out host-list-name] [keepalive seconds] [lf size] [lsap-output-list list] [rsvp {global | learn | [average-bit-rate maximum burst]}] [tcp-queue-max size]
Syntax Description
fst (Optional) Use FST encapsulation for all promiscuous peers established by this router. bytes-netbios-out bytes-list-name (Optional) Configures NetBIOS bytes output filtering for promiscuous peers. The bytes-list-name is the name of the previously defined NetBIOS bytes access list filter. cost cost (Optional) Specifies the cost to reach promiscuous peers. The valid range is 1 to 5. The default cost is 3. dest-mac destination-mac-address (Optional) Specifies the exclusive destination MAC address for promiscuous peers. dmac-output-list access-list-number (Optional) Specifies the filter output destination MAC addresses. host-netbios-out host-list-name (Optional) Configures NetBIOS host output filtering for promiscuous peers. The host-list-name is the name of the previously defined NetBIOS host access list filter. keepalive seconds (Optional) Configures the promiscuous keepalive interval. The valid range is 0 to 1200 seconds. The default is 30 seconds. lf size (Optional) Largest frame size for this promiscuous peer. Valid maximum frame sizes are the following: lsap-output-list list (Optional) Configures LSAP output filtering for promiscuous peers. Valid numbers are 200 to 299. rsvp global (Optional) Sets the RSVP parameters to the global values. rsvp learn (Optional) Configures RSVP parameters (average-bit-rate and maximum burst rate) to be those of the remote peer to which the promiscuous peer is connecting. average-bit-rate (Optional) Configures RSVP parameters for this peer connection, which are different from the global values. Average bit rate (kilobits per second) to reserve up to 75 percent of the total bits on the interface. The valid range is 0 to 4,294,967. maximum-burst (Optional) Maximum burst size (kilobytes of data in queue). The valid range is 0 to 4,294,967. tcp-queue-max size (Optional) Configures the maximum output TCP queue size for promiscuous peers.
To eliminate caching problems and explorer looping when multiple DLSw+ peers are connected to a single Token Ring LAN where the virtual ring numbers configured in those DLSw+ routers are different, use the dlsw redundant-rings global configuration command. Use the no form of this command to disable the previous settings.
dlsw redundant-rings [ring]...
Syntax Description
ring (Optional) Virtual ring number. Up to 10 redundant rings can be configured
To specify the remote peer with which the router will connect, use the dlsw remote-peer frame-relay global configuration command. Use the no form of this command to disable the previous assignments.
dlsw remote-peer list-number frame-relay interface serial number dlci-number [backup-peer [ip-address | frame-relay interface serial number dlci-number | interface name]] [bytes-netbios-out bytes-list-name] [circuit-weight weight] [cost cost] [dest-mac mac-address] [dmac-output-list access-list-number] [host-netbios-out host-list-name] [keepalive seconds] [lf size] [linger minutes] [lsap-output-list list] [passive] pass-thru
Syntax Description
list-number Ring list number. The valid range is 1 to 255. The default is 0, which means DLSw+ forwards explorers over all ports or bridge groups on which DLSw+ is enabled. interface serial number Serial interface number of the remote peer with which the router is to communicate. dlci-number DLCI number of the remote peer. backup-peer ip-address (Optional) IP address of the existing TCP/FST peer for which this peer is the backup peer. backup-peer frame-relay interface serial number dlci-number (Optional) Serial interface and DLCI number of the existing Direct/LLC2 Frame-Relay peer for which this peer is the backup peer. backup-peer interface name (Optional) Interface name of the existing direct peer for which this peer is the backup peer. bytes-netbios-out bytes-list-name (Optional) Configures NetBIOS bytes output filtering for this peer. The bytes-list-name argument is the name of the previously defined NetBIOS bytes access list filter. circuit weight weight (Optional) Configures circuit-weight for this remote peer. cost cost (Optional) Cost to reach this remote peer. The valid range is 1 to 5. dest-mac mac-address (Optional) Permits the connection to be established only when there is an explorer frame destined for the specified 48-bit MAC address written in dotted triplet form. dmac-output-list access-list-number (Optional) Establishes the connection only when the explorer frame passes the specified access list. The access-list-number is the list number specified in the access-list command. host-netbios-out host-list-name (Optional) Configures NetBIOS host output filtering for this peer. The host-list-name is the name of the previously defined NetBIOS host access list filter. keepalive seconds (Optional) Sets the keepalive interval for this remote peer. The range is 0 to 1200 seconds. lf size (Optional) Largest frame size, in bytes, this local peer will use on a circuit to avoid segmented frames. Valid sizes are 516, 1470, 1500, 2052, 4472, 8144, 11407, 11454, and 17800 bytes. linger minutes (Optional) Configures length of time the backup peer remains connected after the primary peer connection is reestablished. The valid range is 1 to 300 minutes. The default is 5 minutes. lsap-output-list list (Optional) Filters output IEEE 802.5 encapsulated packets. Valid access list numbers are in the range 200 to 299. passive (Optional) Designates this remote peer as passive. pass-thru (Optional) Selects pass-thru mode. The default is local acknowledgement mode.
To specify an FST encapsulation connection for remote peer transport, use the dlsw remote-peer fst global configuration command. Use the no form of this command to disable the previous FST assignments.
dlsw remote-peer list-number fst ip-address [backup-peer [ip-address | frame-relay interface serial number dlci-number | interface name]] [bytes-netbios-out bytes-list-name] [cost cost] [dest-mac mac-address] [dmac-output-list access-list-number] [host-netbios-out host-list-name] [keepalive seconds] [lf size] [linger minutes] [lsap-output-list list] [passive]
Syntax Description
list-number Ring list number. The valid range is 1 to 255. The default is 0, which means DLSw+ forwards explorers over all ports or bridge groups on which DLSw+ is enabled. ip-address IP address of the remote peer with which the router is to communicate. backup-peer ip-address (Optional) IP address of the existing TCP/FST peer for which this peer is the backup peer. backup-peer frame-relay-interface serial number dlci-number (Optional) Serial interface and DLCI number of the existing Direct/LLC2 Frame Relay peer for which this peer is the backup peer. backup-peer interface name (Optional) Interface name of the existing direct peer for which this peer is the backup peer. bytes-netbios-out bytes-list-name (Optional) Configures NetBIOS bytes output filtering for this peer. The bytes-list-name argument is the name of the previously defined NetBIOS bytes access list filter. cost cost (Optional) Cost to reach this remote peer. The valid range is 1 to 5. dest-mac mac-address (Optional) Permits the connection to be established only when there is an explorer frame destined for the specified 48-bit MAC address written in dotted triplet form. dmac-output-list access-list-number (Optional) Permits the connection to be established only when the explorer frame passes the specified access list. The access-list-number is the list number specified in the access-list command. host-netbios-out host-list-name (Optional) Configures NetBIOS host output filtering for this peer. The host-list-name is the name of the previously defined NetBIOS host access list filter. keepalive seconds (Optional) Sets the keepalive interval for this remote peer. The range is 0 to 1200 seconds. lf size (Optional) Largest frame size this local peer will use on a circuit to avoid segmented frames. Valid sizes are 516, 1470, 1500, 2052, 4472, 8144, 11407, 11454, and 17800 bytes. linger minutes (Optional) Configures length of time the backup peer remains connected after the primary peer connection is reestablished. The valid range is 1 to 300 minutes. The default is 5 minutes. lsap-output-list list (Optional) Filters output IEEE 802.5 encapsulated packets. Valid access list numbers are in the range 200 to 299. passive (Optional) Designates this remote peer as passive.
To specify a point-to-point direct encapsulation connection, use the dlsw remote-peer interface global configuration command. Use the no form of this command to disable previous interface assignments.
dlsw remote-peer list-number interface serial number [backup-peer [ip-address | frame-relay interface serial number dlci-number | interface name]] [bytes-netbios-out bytes-list-name] [cost cost] [dest-mac mac-address] [dmac-output-list access-list-number] [host-netbios-out host-list-name] [keepalive seconds] [lf size] [linger minutes] [lsap-output-list list] [passive] [pass-thru]
Syntax Description
list-number Ring list number. The valid range is 1 to 255. The default is 0, which means all. serial number Specifies the remote peer by direct serial interface. backup-peer ip-address (Optional) IP address of the existing TCP/FST peer for which this peer is the backup peer. backup-peer frame-relay interface serial number dlci-number (Optional) Serial interface and DLCI number of the existing Direct /LLC2 frame-relay peer for which this peer is the backup peer. backup-peer interface name (Optional) Interface name of the existing direct peer for which this peer is the backup peer. bytes-netbios-out bytes-list-name (Optional) Configures NetBIOS bytes output filtering for this peer. The bytes-list-name argument is the name of the previously defined NetBIOS bytes access list filter. cost cost (Optional) Cost to reach this remote peer. The valid range is 1 to 5. dest-mac mac-address (Optional) Permits the connection to be established only when there is an explorer frame destined for the specified 48-bit MAC address written in dotted triplet form. dmac-output-list access-list-number (Optional) Permits the connection to be established only when the explorer frame passes the specified access list. The access-list-number is the list number specified in the access-list command. host-netbios-out host-list-name (Optional) Configures NetBIOS host output filtering for this peer. The host-list-name is the name of the previously defined NetBIOS host access list filter. keepalive seconds (Optional) Sets the keepalive interval for this remote peer. The range is 0 to 1200 seconds. lf size (Optional) Largest frame size, in bytes, this local peer will use on a circuit to avoid segmented frames. Valid sizes are 516, 1470, 1500, 2052, 4472, 8144, 11407, 11454, and 17800 bytes. linger minutes (Optional) Configures length of time the backup peer remains connected after the primary peer connection is reestablished. The valid range is 1 to 300 minutes. The default is 5 minutes. lsap-output-list list (Optional) Filters output IEEE 802.5 encapsulated packets. Valid access list numbers are in the range 200 to 299. passive (Optional) Designates this remote peer as passive. pass-thru (Optional) Selects passthrough mode. The default is local acknowledgment mode.
To identify the IP address of a peer with which to exchange traffic using TCP, use the dlsw remote-peer tcp global configuration command . Use the no form of this command to remove a remote peer.
dlsw remote-peer list-number tcp ip-address [backup-peer [ip-address | frame-relay interface serial number dlci-number | interface name]] [bytes-netbios-out bytes-list-name] [cluster cluster-id] [circuit-weight value] [cost cost] [dest-mac mac-address] dmac-output-list access-list-number] [dynamic] [host-netbios-out host-list-name] [inactivity minutes] [dynamic] [keepalive seconds] [lf size] [linger minutes] [lsap-output-list list] [no-llc minutes] [passive] [priority] [rif-passthru virtual-ring-number] [rsvp {global | [average-bit-rate maximum burst]}] [tcp-queue-max size] [timeout seconds]
Syntax Description
list-number Remote peer ring group list number. This ring group list number default is 0. Otherwise, this value must match the number you specify with the dlsw ring-list, dlsw port-list, or dlsw bgroup-list command. ip-address IP address of the remote peer with which the router is to communicate. backup-peer ip-address (Optional) IP address of the existing TCP/FST peer for which this peer is the backup peer. backup-peer frame-relay interface serial number dlci-number (Optional) Serial interface and DLCI number of the existing Direct/LLC2 Frame Relay peer for which this peer is the backup peer. backup-peer interface name (Optional) Interface name of the existing direct peer for which this peer is the backup peer. bytes-netbios-out bytes-list-name (Optional) Configures NetBIOS bytes output filtering for this peer. The bytes-list-name argument is the name of the previously defined NetBIOS bytes access list filter. cluster cluster-id (Optional) Used to indicate to a border peer that a particular remote-peer should be treated as part of a specific peer cluster. The valid Range is 1 to 255. circuit-weight value (Optional) Configures the target state that DLSw+ tries to maintain. The valid range is 1 to 100. cost cost (Optional) Cost to reach this remote peer. The valid range is 1 to 5. dest-mac mac-address (Optional) Establishes the TCP connection only when there is an explorer frame destined for the specified 48-bit MAC address written in dotted triplet form. dmac-output-list access-list-number (Optional) Establishes the TCP connection only when the explorer frame passes the specified access list. The access-list-number is the list number specified in an access-list command. dynamic (Optional) Establishes the TCP connection only when there is DLSw+ data to send. host-netbios-out host-list-name (Optional) Configures NetBIOS host output filtering for this peer. The host-list-name is the name of the previously defined NetBIOS host access list filter. inactivity minutes (Optional) Configures the length of time a connection is idle before closing the dynamic remote peer connection. The valid range is 1 to 300 minutes. The default is 5 minutes. keepalive seconds Sets the keepalive interval for this remote peer. The range is 0 to 1200 seconds. lf size (Optional) Largest frame size, in bytes, this local peer uses on a circuit to avoid segmented frames. Valid sizes are 516, 1470, 1500, 2052, 4472, 8144, 11407, 11454, and 17800 bytes. linger minutes (Optional) Configures length of time the backup peer remains connected after the primary peer connection is reestablished. The valid range is 1 to 300 minutes. The default is 5 minutes. lsap-output-list list (Optional) Filters output IEEE 802.5 encapsulated packets. Valid access list numbers are in the range 200 to 299. no-llc minutes (Optional) Configures the length of time a remote peer remains connected after all LLC2 connections are gone. The valid range is 1 to 300 minutes. The default is 5 minutes. passive (Optional) Designates this remote peer as passive. priority (Optional) Enables prioritization features for this remote peer. Valid TCP port numbers are the following: High---2065 Medium---1981 Normal---1982 Low---1983 rif-passthru virtual-ring-number (Optional) Configures the remote peer as RIF-Passthru. The virtual-ring-number value is the same number as the ring number value assigned in the source-bridge ring-group commands of the DLSw+ Passthru peers. rsvp global (Optional) Configures the RSVP parameters for this specific peer back to the global values. rsvp average-bit-rate (Optional) Configures RSVP parameters for this peer, which are different from the global values. Average bit rate (kilobits per second) reserves up to 75 percent of the total bits on the interface. Range is 0 to 4,294,967. rsvp maximum burst (Optional) Maximum burst size (kilobytes of data in queue). Range is 0 to 4,294,967. tcp-queue-max size (Optional) Maximum output TCP queue size for this remote peer. The valid maximum TCP queue size is a number in the range 10 to 2000. timeout seconds (Optional) Retransmit time limit for TCP. The valid range is 5 to 1200 seconds. The default is 90 seconds.
To configure a ring list, mapping traffic on a local interface to remote peers, use the dlsw ring-list global configuration command. Use the no form of this command to cancel the definition.
dlsw ring-list list-number rings ring-number
Syntax Description
list-number Ring list number. The valid range is 1 to 255. rings Specify one or more physical or virtual rings. ring-number Physical or virtual ring number. The valid range is 1 to 4095.
To enable the DLSw+ RSVP Bandwidth Reservation feature on the local peer, use the dlsw rsvp global configuration command. Use the no form of this command to disable the DLSw+ RSVP Bandwidth Reservation feature for all peers in the router.
dlsw rsvp {default | [average-bit-rate maximum-burst]}
Syntax Description
default Sets the average bit rate to 10 Kbps and the maximum burst rate to 28 KBps. average-bit-rate (Optional) Average bit rate (kilobits per second) to reserve up to 75 percent of the total bits on the interface. The valid range is 1 to 4,294,967. maximum-burst (Optional) Maximum burst size (kilobytes of data in queue). The valid range is 1 to 4294967.
To tune an existing configuration parameter, use the dlsw timer global configuration command. Use the no form of this command to restore the default parameters.
dlsw timer {icannotreach-block-time | netbios-cache-timeout | netbios-explorer-timeout | netbios-group-cache | netbios-retry-interval | netbios-verify-interval | sna-cache-timeout | explorer-delay-time | sna-explorer-timeout | explorer-wait-time | sna-group-cache | sna-retry-interval | sna-verify-interval} time
Syntax Description
icannotreach-block-time Cache life of unreachable resource; during this time searches for the resource are blocked. The valid range is 1 to 86400 seconds. The default is 0 (disabled). netbios-cache-timeout Cache life of NetBIOS name location for the local and remote reachability caches. The valid range is 1 to 86400 seconds. The default is 960 seconds (16 minutes). netbios-explorer-timeout Length of time that the Cisco IOS software waits for an explorer response before marking a resource unreachable (on both a LAN and a WAN). The valid range is 1 to 86400 seconds. The default is 6 seconds. netbios-group-cache Cache life of NetBIOS entries in the group cache. The valid range is 1 to 86000 seconds. The default is 240 seconds (4 minutes). netbios-retry-interval NetBIOS explorer retry interval (on a LAN only). The valid range is 1 to 86400 seconds. The default is 1 second. netbios-verify-interval Number of seconds between a cache entry's creation and its marking as stale. If a search request comes in for a stale cache entry, a directed verify query is sent to ensure the cache still exists. The valid range is 1 to 86400 seconds. The default is 240 seconds (4 minutes). sna-cache-timeout Length of time that an SNA MAC/service access point (SAP) location cache entry exists before it is discarded (for local and remote caches). The valid range is 1 to 86400 seconds. The default is 960 seconds (16 minutes). explorer-delay-time Time to wait before sending or accepting explorers. The valid range is 1 to 5 minutes. The default is 0. sna-explorer-timeout Length of time that the Cisco IOS software waits for an explorer response before marking a resource unreachable (on a LAN and WAN). The valid range is 1 to 86400 seconds. The default is 180 seconds (3 minutes). explorer-wait-time Time to wait for all stations to respond to explorers. The valid range is 1 to 86400 seconds. The default is 0. sna-group-cache Cache life of SNA entries in the group cache. The valid range is 1 to 86000 seconds. The default is 240 seconds (4 minutes). sna-retry-interval Interval between SNA explorer retries (on a LAN). The valid range is 1 to 86400 seconds. The default is 30 seconds. sna-verify-interval Number of seconds between a cache entry's creation and its marking as stale. If a search request comes in for a stale cache entry, a directed verify query is sent to ensure that the cache still exists. The valid range is 1 to 86400 seconds. The default is 240 seconds (4 minutes).
To disable any TOS bits in DLSw+ generated packets, use the dlsw tos disable global configuration command. Use the no form to return to the default setting.
dlsw tos disableSyntax Description
This command has no arguments or keywords.
To associate a TOS value for priority peers, use the dlsw tos map global configuration command. Use the no form of this command to return to the default setting.
dlsw tos map [high value [medium value | normal value | low value]]
Syntax Description
high value (Optional) Overrides the default values set for the port labeled "high." The value is the TOS bit value. Valid ranges are 0 to 7. medium value (Optional) Overrides the default values set for the port labeled "medium." The value is the TOS bit value. Valid ranges are 0 to 7. normal value (Optional) Overrides the default values set for the port labeled "normal." The value is the TOS bit value. Valid ranges are 0 to 7. low value (Optional) Overrides the default values set for the port labeled "low." The value is the TOS bit value. Valid ranges are 0 to 7.
To enable MAC address mapping in a switch-based environment, use the dlsw transparent map interface configuration command. To disable MAC address mapping, use the no form of this command.
dlsw transparent map local mac mac address remote mac mac address [neighbor mac address]
Syntax Description
local mac mac address MAC address that is created and given to the remote device. This MAC address is mapped to the actual MAC address that is specified in the remote mac mac address option. remote mac mac address MAC address of the remote device. neighbor mac address (Optional) MAC address of the DLSw+ device that takes over mapping if the primary DLSw+ device becomes unavailable.
To configure transparent redundancy, use the dlsw transparent redundancy-enable interface configuration command. To disable transparent redundancy, use the no form of this command.
dlsw transparent redundancy-enable multicast-mac-address [master-priority value]
Syntax Description
multicast-mac-address MAC address to which all DLSw+ devices on a transparent bridged domain advertise their presence by sending the master present frame. master-priority value (Optional) Configures the router as a master device. The valid range is 0 to 254. The lower the value, higher the priority. The default value is 100.
To enable the special support that is required for the interfaces connected to an ethernet switch with the dlsw transparent redundancy-enable command configured, use the dlsw transparent switch-support global configuration command. To disable dlsw transparent switch support, use the no form of this command.
dlsw transparent switch-supportSyntax Description
This command has no arguments or keywords.
To configure the timeout value the master router waits for all requests for a circuit before giving the permission for a router for a circuit, use the dlsw transparent timers interface configuration command. To disable the timeout value, use the no form of this command.
dlsw transparent timers [netbios value | sna value]
Syntax Description
netbios value (Optional) Timeout value for the NetBIOS session. The valid range is 100 to 900 ms. The default value is 400 ms. sna value (Optional) Timeout value for the SNA session. The valid range is 100 to 5000 ms. The default value is 1000 ms (1 second).
To disable the UDP unicast feature, use the dlsw udp-disable global configuration command. Use the no form of this command to return to the default UDP unicast feature.
dlsw udp-disableSyntax Description
This command has no arguments or keywords.
To enable DLSw+ over Qualified Logical Link Control (QLLC), use the qllc dlsw interface configuration command. Use the no form of this command to cancel the configuration.
qllc dlsw {subaddress subaddress | pvc pvc-low [pvc-high]} [vmac vmacaddr poolsize] [partner partner-macaddr] [sap ssap dsap] [xid xidstring] [npsi-poll]
Syntax Description
subaddress subaddress An X.121 subaddress. pvc Map one or more permanent virtual circuits (PVCs) to a particular QLLC service (in this case DLSw+). QLLC will attempt to reach the partner by sending and ID.STN.IND to DLSw+. pvc-low Lowest logical channel number (LCN) for a range of X.25 PVCs. Acceptable values for PVCs are decimal numbers between 1 and 4095. pvc-high (Optional) Highest LCN. If not specified the range of PVCs consists of just one PVC. vmac vmacaddr (Optional) Defines either the only virtual MAC address used for DLSw+ or the lowest virtual MAC address in a pool of virtual MAC addresses. poolsize (Optional) Specify the number of contiguous virtual MAC addresses that have been reserved for DLSw+. If the parameter is not present, then just one virtual MAC address is available. partner partner-macaddr (Optional) Virtual MAC address to which an incoming call wishes to connect. The qllc dlsw command must be repeated for each different partner. Each partner is identified by a unique subaddress. sap ssap dsap (Optional) Overrides the default SAP values (04) for a Token Ring connection. dsap refers to the partner's SAP address; ssap applies to the virtual MAC address that corresponds to the X.121 device. xid xidstring (Optional) XID format 0 type 2 string. npsi-poll (Optional) Inhibits forwarding a null XID on the X.25 link. Instead the Cisco IOS software will send a null XID response back to the device that sent the null XID command.
To attach SDLC addresses to DLSw+, use the sdlc dlsw interface configuration command. Use the no form of this command to cancel the configuration.
sdlc dlsw {sdlc-address | default | partner mac-address [inbound | outbound]}
Syntax Description
sdlc-address SDLC addresses are in hexadecimal. The valid range is 1 to FE. default Allows the user to configure an unlimited number of SDLC addresses to DLSw+. partner mac-address MAC address for default partner inbound (Optional) Partner will initiate connection. outbound (Optional) Initiate connection to partner.
To display the configuration of a specific peer or all peers, use the show dlsw capabilities privileged EXEC command.
show dlsw capabilities [interface type number | ip-address ip-address | local]
Syntax Description
interface type number (Optional) Specifies the interface type and number for which the DLSw+ capabilities are to be displayed. ip-address ip-address (Optional) Specifies a peer by its IP address. local (Optional) Specifies the local DLSw+ peer.
To display the state of all circuits involving this MAC address as a source and destination, use the show dlsw circuits privileged EXEC command.
show dlsw circuits [detail] [mac-address address | sap-value value | circuit id]
Syntax Description
detail (Optional) Display circuit state information in expanded format. mac-address address (Optional) Specifies the MAC address to be used in the circuit search. sap-value value (Optional) Specifies the SAP to be used in the circuit search. circuit id (Optional) Specifies the circuit ID of the circuit index.
To display the fast cache for FST and direct-encapsulated peers, use the show dlsw fastcache privileged EXEC command.
show dlsw fastcacheSyntax Description
This command has no arguments or keywords.
To display DLSw peer information, use the show dlsw peers privileged EXEC command.
show dlsw peers [interface type number | ip-address ip-address | ssp-dlx [interface type number | ip-address ip-address] | udp]
Syntax Description
interface type number (Optional) Specifies a remote peer by a direct interface. ip-address ip-address (Optional) Specifies a remote peer by its IP address. ssp-dlx (Optional) Details SSP and DLX primitive frames received and transmitted by a TCP or LLC2 peer. udp (Optional) Shows UDP frame forwarding statistics for specified peers.
To display DLSw+ reachability information, use the show dlsw reachability privileged EXEC command.
show dlsw reachability [[group [value] | local | remote] | [mac-address [address] [netbios-names [name]]
Syntax Description
group (Optional) Displays contents of group reachability cache only. value (Optional) Specifies the group number for the reachability check. Only displays group cache entries for the specified group. The valid range is 1 to 255. local (Optional) Displays contents of local reachabilty cache only. remote (Optional) Displays contents of remote reachabilty cache only. mac-address (Optional) Displays DLSw reachability for MAC addresses only. address (Optional) Specifies the MAC address for which to search in the reachability cache. netbios-names (Optional) Displays DLSw reachability for NetBIOS names only. name (Optional) Specifies the NetBIOS name for which to search in the reachability cache.
To display the number of frames that have been processed in the local, remote, and group cache, use the show dlsw statistics privileged EXEC command.
show dlsw statistics [border-peers]
Syntax Description
border-peers (Optional) Displays the number of frames processed in the local, remote, and group caches.
To display the master circuit cache for each transparent bridged domain, use the show dlsw transparent cache privileged EXEC command.
show dlsw transparent cacheSyntax Description
This command has no arguments or keywords.
To display MAC address mappings on the local router and any mappings for which the local router is acting as backup for a neighbor peer, use the show dlsw transparent map privileged EXEC command.
show dlsw transparent mapSyntax Description
This command has no arguments or keywords.
To display DLSw neighbors in a transparent bridged domain, use the show dlsw transparent neighbor privileged EXEC command.
show dlsw transparent neighborSyntax Description
This command has no arguments or keywords.
Posted: Wed Jul 26 11:07:16 PDT 2000
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