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This chapter explains the function and syntax of the Remote Source-Route Bridging 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 assign a remote source-route bridging (RSRB) priority group to an input interface, use the locaddr-priority interface configuration command. Use the no form of this command to remove the RSRB priority group assignment from the interface.
locaddr-priority list-number
Syntax Description
list-number Priority list number of the input interface.
To map logical units (LUs) to queuing priorities as one of the steps to establishing queuing priorities based on LU addresses, use the locaddr-priority-list global configuration command. Use the no form of this command to remove that priority queuing assignment. You use this command in conjunction with the priority list command.
locaddr-priority-list list-number address-number queue-keyword [dsap ds] [dmac dm] [ssap ss] [smac sm]
Syntax Description
list-number Arbitrary integer between 1 and 10 that identifies the LU address priority list selected by the user. address-number Value of the LOCADDR= parameter on the LU macro, which is a one-byte address of the LU in hexadecimal. queue-keyword Enables a priority queue type: Valid queue-keyword values and their equivalent priority queue type level are: dsap ds (Optional) Indicates that the next argument, ds, represents the destination service access point address. The argument ds is a hexadecimal value. dmac dm (Optional) Indicates that the next argument, dm, is the destination MAC address. The argument dm is a dotted triple of four-digit hexadecimal numbers. ssap ss (Optional) Indicates that the next argument, ss, is the source service access point address. If this is not specified, the default is all source service access point addresses. smac sm (Optional) Indicates that the next argument, sm, is the source MAC address, written as a dotted triple of four-digit hexadecimal numbers. If this is not specified, the default is all source MAC addresses.
To establish queuing priorities based upon the protocol type as one of the steps to establishing queuing priorities based on logical unit (LU) addresses, use the priority-list protocol global configuration command. Use the no form of this command to remove the priority list. Use this command in conjunction with the locaddr-priority-list command.
priority-list list-number protocol protocol-name queue-keyword
Syntax Description
list-number Arbitrary integer between 1 and 10 that identifies the LU address priority list selected by the user. protocol-name Protocol you are using. In most cases, this will be ip. queue-keyword Priority queue name; one of high, medium, normal, or low.
To define service access point (SAP) filters by local SAP (LSAP) address on the remote source-route bridging WAN interface, use the rsrb remote-peer lsap-output-list global configuration command. Use the no form of this command to remove a SAP filter on the RSRB WAN interface.
rsrb remote-peer ring-group {tcp ip-address | fst ip-address | interface name} lsap-output-list access-list-number
Syntax Description
ring-group Virtual ring number of the remote peer. tcp TCP encapsulation. fst FST encapsulation. ip-address IP address. interface Direct encapsulation. name Interface name. access-list-number Number of the access list.
To filter packets by NetBIOS station name on a remote source-route bridging WAN interface, use the rsrb remote-peer netbios-output-list global configuration command. Use the no form of this command to remove a filter on an RSRB WAN interface.
rsrb remote-peer ring-group {tcp ip-address | fst ip-address | interface type} netbios-output-list name
Syntax Description
ring-group Virtual ring number of the remote peer. tcp TCP encapsulation. fst FST encapsulation. ip-address IP address. interface Direct encapsulation. type Interface name. name Name of a NetBIOS access filter previously defined with one or more netbios access-list host global configuration commands. host Host name.
To define a priority list on an interface, use the sap-priority interface configuration command. Use the no form of this command to remove a priority list on an interface.
sap-priority list-number
Syntax Description
list-number Priority list number you specified in the sap-priority-list command.
To define a priority list, use the sap-priority-list global configuration command. Use the no form of this command to remove a priority list.
sap-priority-list list-number queue-keyword [dsap ds] [ssap ss] [dmac dm] [smac sm]
Syntax Description
list-number Arbitrary integer between 1 and 10 that identifies the priority list. queue-keyword Priority queue name or a remote source-route bridge TCP port name. dsap ds (Optional) Destination service access point address. The argument ds is a hexadecimal number. ssap ss (Optional) Source service access point address. The argument ss is a hexadecimal number. dmac dm (Optional) Destination MAC address. The argument dm is written as a dotted triplet of four-digit hexadecimal numbers. smac sm (Optional) Source MAC address. The argument sm is written as a dotted triplet of four-digit hexadecimal numbers.
To display the current state of any current local acknowledgment for both LLC2 and SDLLC connections, as well as for any configured passthrough rings, use the show local-ack privileged EXEC command.
show local-ackSyntax Description
This command has no arguments or keywords.
To force the Cisco IOS software to read the contents of the format identification (FID) frames to prioritize traffic when using TCP, use the source-bridge cos-enable global configuration command . Use the no form of this command to disable prioritizing.
source-bridge cos-enableSyntax Description
This command has no arguments or keywords.
To set up a Fast-Sequenced Transport (FST) peer name, use the source-bridge fst-peername global configuration command. Use the no form of this command to disable the IP address assignment.
source-bridge fst-peername local-interface-address
Syntax Description
local-interface-address IP address to assign to the local router.
To assign the keepalive interval of the remote source-bridging peer, use the source-bridge keepalive interface configuration command. Use the no form of this command to cancel previous assignments.
source-bridge keepalive seconds
Syntax Description
seconds Keepalive interval in seconds. The valid range is 10 to 300. The default value is 30 seconds.
To configure the largest frame size that is used to communicate with any peers in the ring group, use the source-bridge largest-frame global configuration command. Use the no form of this command to cancel previous assignments.
source-bridge largest-frame ring-group size
Syntax Description
ring-group Ring group number. This ring group number must match the number you have specified with the source-bridge ring-group command. The valid range is 1 to 4095. size Maximum frame size. The default is that no frame size is assigned.
To configure some sessions on a few rings to be locally acknowledged and the remaining to passthrough, use the source-bridge passthrough global configuration command. Use the no form of this command to disable passthrough on all the rings and allow the session to be locally acknowledged.
source-bridge passthrough ring-group
Syntax Description
ring-group Ring group number. This ring is either the start ring or destination ring of the two IBM end machines for which the passthrough feature is to be configured. This ring group number must match the number you specified with the source-bridge ring-group command. The valid range is 1 to 4095.
To specify a point-to-point direct encapsulation connection, use the source-bridge remote-peer frame-relay global configuration command. Use the no form of this command to disable previous interface assignments.
source-bridge remote-peer ring-group frame-relay interface name [mac-address] [dlci-number] [lf size]
Syntax Description
ring-group Ring group number. This ring group number must match the number you specified with the source-bridge ring-group command. The valid range is 1 to 4095. interface name Name of the interface over which to send source-route bridged traffic. mac-address (Optional) MAC address for the interface on the other side of the virtual ring. This argument is required for nonserial interfaces. You can obtain the value of this MAC address by using the show interface command, and then scanning the display for the interface specified by name. dlci-number (Optional) Data-link connection identifier (DLCI) number for Frame Relay encapsulation. lf size (Optional) Maximum-sized frame to be sent to this remote peer. The Cisco IOS software negotiates all transit routes down to this size or lower. This argument is useful in preventing timeouts in end hosts by reducing the amount of data they have to transmit in a fixed interval. The legal values for this argument are 516, 1500, 2052, 4472, 8144, 11407 and 17800 bytes.
Syntax Description
ring-group Ring group number. This ring group number must match the number you specified with the source-bridge ring-group command. The valid range is 1 to 4095. ip-address IP address of the remote peer with which the router will communicate. lf size (Optional) Maximum-sized frame to be sent to this remote peer. The Cisco IOS software negotiates all transit routes down to this size or lower. Use this argument to prevent timeouts in end hosts by reducing the amount of data they have to transmit in a fixed interval. The legal values for this argument are 516, 1500, 2052, 4472, 8144, 11407, and 17800 bytes.
To identify the IP address of a peer in the ring group with which to exchange source-bridge traffic using TCP, use the source-bridge remote-peer tcp global configuration command. Use the no form of this command to remove a remote peer for the specified ring group.
source-bridge remote-peer ring-group tcp ip-address [lf size] [tcp-receive-window wsize] [local-ack] [priority]
Syntax Description
ring-group Ring group number. This ring group number must match the number you specified with the source-bridge ring-group command. The valid range is 1 to 4095. ip-address IP address of the remote peer with which the router will communicate. The default is that no IP address is identified. lf size (Optional) Maximum-sized frame to be sent to this remote peer. The Cisco IOS software negotiates all transit routes down to this size or lower. Use this argument to prevent timeouts in end hosts by reducing the amount of data they have to transmit in a fixed interval. The valid values for this argument are 516, 1500, 2052, 4472, 8144, 11407, and 17800 bytes. tcp-receive-window wsize (Optional) The TCP receive window size in bytes. The range is 10240 to 65535 bytes. The default window size is 10240 bytes. local-ack (Optional) LLC2 sessions destined for a specific remote peer are locally terminated and acknowledged. Use local acknowledgment for LLC2 sessions going to this remote peer. priority (Optional) Enables prioritization over a TCP network. You must specify the keyword local-ack earlier in the same source-bridge remote-peer command. The keyword priority is a prerequisite for features such as System Network Architecture (SNA) class of service and SNA LU address prioritization over a TCP network.
To modify the size of the backup queue for remote source-route bridging, use the source-bridge tcp-queue-max global configuration command. This backup queue determines the number of packets that can wait for transmission to a remote ring before packets start being thrown away. Use the no form of this command to return to the default value.
source-bridge tcp-queue-max number
Syntax Description
number Number of packets to hold in any single outgoing TCP queue to a remote router. The default is 100 packets.
Posted: Wed Jul 26 11:18:05 PDT 2000
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