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Table of Contents

Source-Route Bridging Commands

Source-Route Bridging Commands

This section describes the function and displays the syntax of each source-route bridging command. For more information about defaults and usage guidelines, see the corresponding chapter of the Router Products Command Reference publication.

[no] access-expression {in | out} expression

Use the access-expression interface configuration command to define an access expression. Use the no form of this command to remove the access expression from the given interface. You use this command in conjunction with the access-list interface configuration command.

in | out Indicates whether the access expression is applied to packets entering or leaving this interface. You can specify both an input and an output access expression for an interface, but only one of each.
expression Boolean access list expression, built as explained in the "Usage Guidelines" section for this command in the Router Products Command Reference publication.

[no] access-list access-list-number {permit | deny} {type-code
wild-mask
| address mask}

Use the access-list global configuration command to configure the access list mechanism for filtering frames by protocol type or vendor code. Use the no form of this command to remove the single specified entry from the access list.

access-list-number Integer that identifies the access list. If the type-code and wild-mask arguments are included, this integer ranges from 200 through 299 indicating filtering is by protocol type. If the address and mask arguments are included, this integer ranges from 700 through 799 indicating filtering is by vendor code.
permit Permits the frame.
deny Denies the frame.
type-code 16-bit hexadecimal number written with a leading 0x; for example, 0x6000. Specify either a Link Service Access Point (LSAP) type code for 802-encapsulated packets or a SNAP type code for SNAP-encapsulated packets. (LSAP, sometimes called SAP, refers to the type codes found in the DSAP and SSAP fields of the 802 header.)
wild-mask 16-bit hexadecimal number whose ones bits correspond to bits in the type-code argument. The wild-mask indicates which bits in the type-code argument should be ignored when making a comparison. (A mask for a DSAP/SSAP pair should always be 0x0101 because these two bits are used for purposes other than identifying the SAP code.)
address 48-bit Token Ring address written in dotted triplet form. This field is used for filtering by vendor code.
mask 48-bit Token Ring address written in dotted triplet form. The ones bits in mask are the bits to be ignored in address. This field is used for filtering by vendor code.

clear netbios-cache

Use the clear netbios-cache EXEC command to clear the entries of all dynamically learned NetBIOS names. This command will not remove statically defined name cache entries.

clear rif-cache

Use the clear rif-cache EXEC command to clear the entire RIF cache.

clear source-bridge

Use the clear source-bridge EXEC command to clear the source-bridge statistical counters.

clear sse

Use the clear sse privileged EXEC command to reinitialize the Silicon Switch Processor (SSP) on the Cisco 7000 series.

ethernet-transit-oui {standard | 90-compatible | cisco}
no ethernet-transit-oui

Use the ethernet-transit-oui interface configuration command to choose the Organizational Unique Identifier (OUI) code to be used in the encapsulation of Ethernet Type II frames across Token Ring backbone networks. Various versions of this OUI code are used by Ethernet/Token Ring translational bridges. The standard keyword is used when you are forced to interoperate with other vendor equipment, such as the IBM 8209, in providing Ethernet and Token Ring mixed media bridged connectivity.

90-compatible (Optional) Default OUI form
standard (Optional) Standard OUI form
cisco (Optional) Cisco's OUI form

lnm alternate number
no lnm alternate

Use the lnm alternate interface configuration command to specify the threshold reporting link number. In order for a LAN Reporting Manager (LRM) to change parameters, it must be attached to the reporting link with the lowest reporting link number, and that reporting link number must be lower than this threshold reporting link number. Use the no form of this command to restore the default of 0.

number Threshold reporting link number. It must be in the range 0 through 3. The default is 0.

[no] lnm crs

Use the lnm crs interface configuration command to monitor the current logical configuration of a Token Ring. Use the no form of this command to disable this function.

lnm loss-threshold number
no lnm loss-threshold

Use the lnm loss-threshold interface configuration command to set the threshold at which the router sends a message informing all attached LNMs that it is dropping frames. Use the no form of this command to return to the default value.

number Percentage loss rate in hundredths of a percent. The valid range is 0 through 9999. The default is 10 (0.10 percent).

lnm password number string
no lnm password number

Use the lnm password interface configuration command to set the password for the reporting link. Use the no form of this command to return the password to its default value of 00000000.

number Number of the reporting link to which to apply the password. This value should be in the range 0 through 3.
string Password you enter at the keyboard. In order to maintain compatibility with LNM, the parameter string should be a six- to eight-character string to be of the type listed in the "Usage Guidelines" section for this command in the Router Product Command Reference publication.

[no] lnm rem

Use the lnm rem interface configuration command to monitor errors reported by any station on the ring, as in an IBM bridge. Use the no form of this command to disable this function.

[no] lnm rps

Use the lnm rps interface configuration command to ensure that all stations on a ring are using a consistent set of reporting parameters. Use the no form of this command to disable this function.

[no] lnm snmp-only

Use the lnm snmp-only global configuration command to prevent any LNM stations from modifying parameters in the router. Use the no form of this command to allow modifications.

lnm softerr milliseconds
no lnm softerr

Use the lnm softerr interface configuration command to set the time interval in which the router will accumulate error messages before sending them. Use the no form of this command to return to the default value.

milliseconds Time in tens of milliseconds between error messages. The valid range is 0 through 65535. The default is 200 milliseconds (2 seconds).

[no] locaddr-priority list-number

Use the locaddr-priority interface configuration command to assign a remote source-route bridging (RSRB) priority group to an input interface. Use the no form of this command to remove the RSRB priority group assignment from the interface.

list-number Priority list number of the input interface

[no] locaddr-priority-list list-number address-number queue-keyword [dsap ds] [dmac dm]

Use the locaddr-priority-list global configuration command to map logical units (LUs) to queuing priorities as one of the steps to establishing queuing priorities based on LU addresses. Use the no form of this command to remove that RSRB priority queuing assignment. You use this command in conjunction with the priority list command.

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 hex.
queue-keyword Priority queue name; one of high, medium, normal, or low.
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.

mac-address ieee-address

Use the mac-address interface configuration command to set the MAC layer address of the Cisco Token Ring.

ieee-address 48-bit IEEE MAC address written as a dotted triplet of four-digit hexadecimal numbers

[no] multiring {protocol-keyword | all | other}

Use the multiring interface configuration command to enable collection and use of RIF information. Use the no form of this command with the appropriate keyword to disable the use of RIF information for the protocol specified.

protocol-keyword Protocol. See the keyword list in the "Usage Guidelines" section for this command in the Router Products Command Reference publication.
all Enables the multiring for all frames.
other Enables the multiring for any routed frame not included in the previous list of supported protocols.

[no] netbios access-list bytes name {permit | deny} offset pattern

Use the netbios access-list bytes global configuration command to define the offset and hexadecimal patterns with which to match byte offsets in NetBIOS packets. Use the no form of this command to remove an entire list or the entry specified with the pattern argument.

name Name of the access list being defined.
permit Permits the condition.
deny Denies the condition.
offset Decimal number indicating the number of bytes into the packet where the byte comparison should begin. An offset of zero points to the very beginning of the NetBIOS header. Therefore, the NetBIOS delimiter string (0xffef), for example, begins at offset 2.
pattern Hexadecimal string of digits representing a byte pattern. The argument pattern must conform to certain conventions. These conventions are listed in the "Usage Guidelines" section for this command in the Router Products Command Reference publication.

[no] netbios access-list host name {permit | deny} pattern

Use the netbios access-list host global configuration command to assign the name of the access list to a station or set of stations on the network. The NetBIOS station access list contains the station name to match, along with a permit or deny condition. Use the no form of this command to remove either an entire list or just a single entry from a list, depending upon the argument given for pattern.

name Name of the access list being defined.
permit Permits the condition.
deny Denies the condition.
pattern A set of characters. The characters can be the name of the station, or a combination of characters and pattern-matching symbols that establish a pattern for a set of NetBIOS station names. This can be especially useful when stations have names with the same characters, such as a prefix. See the table in the "Usage Guidelines" section for this command in the Router Products Command Reference publication for pattern-matching symbols.

[no] netbios enable-name-cache

Use the netbios enable-name-cache interface configuration command to enable NetBIOS name caching. Use the no form of this command to disable the name-cache behavior.

[no] netbios input-access-filter bytes name

Use the netbios input-access-filter bytes interface configuration command to define a byte access list filter on incoming messages. The actual access filter byte offsets and patterns used are defined in one or more netbios-access-list bytes commands. Use the no form of this command with the appropriate name to remove the entire access list.

name Name of a NetBIOS access filter previously defined with one or more of the netbios access-list bytes global configuration commands.

[no] netbios input-access-filter host name

Use the netbios input-access-filter host interface configuration command to define a station access list filter on incoming messages. The access lists of station names are defined in netbios access-list host commands. Use the no form of this command with the appropriate argument to remove the entire access list.

name Name of a NetBIOS access filter previously defined with one or more of the netbios access-list host global configuration commands.

netbios name-cache mac-address netbios-name {interface-name |
ring-group group-number}
no netbios name-cache mac-address netbios-name

Use the netbios name-cache global configuration command to define a static NetBIOS name-cache entry, tying the server with the name netbios-name to the mac-address, and specifying that it is accessible either locally via the interface-name specified, or remotely, via the ring-group group-number specified. Use the no form of this command to remove the entry.

mac-address MAC address.
netbios-name Server name linked to the MAC address.
interface-name Name of the interface by which the server is accessible locally.
ring-group Specifies that the link is accessible remotely.
group-number Number of the ring group by which the server is accessible remotely. This ring group number must match the number you have specified with the source-bridge ring-group command. The valid range is 1 through 4095.

netbios name-cache name-len length

Use the netbios name-cache name-len global configuration command to specify how many characters of the NetBIOS type name the name cache will validate.

length Length of the NetBIOS type name. The range is 8 to 16 characters. The default length is 15 characters.

netbios name-cache proxy-datagram seconds

Use the netbios name-cache proxy-datagram global configuration command to enable the router to act as a proxy and send NetBIOS datagram type frames.

seconds Time interval, in seconds, that the router forwards a route broadcast datagram type packet. The valid range is any number greater than 0.

netbios name-cache query-timeout seconds
no netbios name-cache query-timeout

Use the netbios name-cache query-timeout global configuration command to specify the "dead" time, in seconds, that starts when a host sends any ADD_NAME_QUERY, ADD_GROUP_NAME, or STATUS_QUERY frame. During this dead time, the router drops any repeat, duplicate ADD_NAME_QUERY, ADD_GROUP_NAME, or STATUS_QUERY frame sent by the same host. This timeout is only effective at the time of the login negotiation process. Use the no form of this command to bring the time back to the default of 6 seconds.

seconds "Dead" time period in seconds. The default is 6 seconds.

netbios name-cache recognized-timeout seconds
no netbios name-cache recognized-timeout

Use the netbios name-cache recognized-timeout global configuration command to specify the "dead" time, in seconds, that starts when a host sends any FIND_NAME or NAME_RECOGNIZED frame. During this dead time, the router drops any repeat, duplicate FIND_NAME or NAME_RECOGNIZED frame sent by the same host. This timeout is only effective at the time of the login negotiation process. Use the no form of this command to bring the time back to the default of 6 seconds.

seconds "Dead" time period in seconds. The default is 6 seconds.

[no] netbios name-cache timeout minutes

Use the netbios name-cache timeout global configuration command to enable NetBIOS name caching and to set the time entries can remain in the NetBIOS name cache. Use the no form of this command to bring the time back to the default of 15 minutes.

minutes Timeout, in minutes, for entries in the NetBIOS name cache. Once the timeout expires, the entry will be deleted from the cache. The default is 15 minutes.

[no] netbios output-access-filter bytes name

Use the netbios output-access-filter bytes interface configuration command to define a byte access list filter on outgoing messages. Use the no form of this command to remove the entire access list.

name Name of a NetBIOS access filter previously defined with one or more of the netbios access-list bytes global configuration commands.

[no] netbios output-access-filter host name

Use the netbios output-access-filter host interface configuration command to define a station access list filter on outgoing messages. Use the no form of this command to remove the entire access list.

name Name of a NetBIOS access filter previously defined with one or more of the netbios access-list host global configuration commands

[no] priority-group list

Use the priority-group interface configuration command to assign a specified priority list to an interface.

list Priority list number assigned to the interface

priority-list list-number protocol protocol-name queue-keyword
no priority-list list-number address-number queue-keyword

Use the priority-list global configuration command 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 no form of this command to remove the priority list. Use this command in conjunction with the locaddr-priority-list command.

list-number Arbitrary integer between 1 and 10 that identifies the LU address priority list selected by the user.
protocol Keyword indicating you want the priority list to be based on a protocol type.
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.

rif mac-address rif-string {interface-name | ring-group ring}
no rif mac-address {interface-name | ring-group ring}

Use the rif global configuration command to enter static source-route information into the RIF cache. If a Token Ring host does not support the use of IEEE 802.2 TEST or XID datagrams as explorer packets, you might need to add static information to the RIF cache of the router/bridge. Use the no form of this command to remove an entry from the cache.

mac-address 12-digit hexadecimal string written as a dotted triplet; for example 0010.0a00.20a6.
rif-string Series of 4-digit hexadecimal numbers separated by a period (.). This RIF string is inserted into the packets sent to the specified MAC address.
interface-name Interface type and number that indicates the origin of the RIF.
ring-group Specifies the origin of the RIF is a ring group.
ring Ring group number that indicates the origin of the RIF. This ring group number must match the number you have specified with the source-bridge ring-group command. The valid range is 1 through 4095.

rif timeout minutes
no rif timeout

Use the rif timeout global configuration command to determine the number of minutes an inactive RIF entry is kept. RIF information is maintained in a cache whose entries are aged. Use the no form of this command to restore the default.

minutes Number of minutes the RIF entry is kept. The value must be greater than 0. The default is 15 minutes.

rif validate-age seconds

Use the rif validate-age global configuration command to define the validation time when the router is acting as a proxy for the netbios name-query command or for explorer frames.

seconds Interval, in seconds, at which a proxy is sent. The valid range is any number greater than 0. The default is 2 seconds.

rsrb remote-peer ring-group tcp ip-address lsap-output-list
access-list-number
rsrb remote-peer ring-group fst ip-address lsap-output-list
access-list-number
rsrb remote-peer ring-group interface interface-name lsap-output-list
access-list-number

Use the rsrb remote-peer lsap-output-list global configuration command to define SAP filters by LSAP address on the remote source-route bridging WAN interface.

ring-group Virtual ring number of the remote peer.
tcp Indicates TCP encapsulation.
fst Indicates FST encapsulation.
ip-address IP address.
interface Indicates direct encapsulation.
interface-name Interface name.
access-list-number Number of the access list.

rsrb remote-peer ring-group tcp ip-address netbios-output-list name
rsrb remote-peer ring-group fst ip-address netbios-output-list name
rsrb remote-peer ring-group interface interface-name
netbios-output-list host

Use the rsrb remote-peer netbios-output-list global configuration command to filter packets by NetBIOS station name on a remote source-route bridging WAN interface.

ring-group Virtual ring number of the remote peer.
tcp Indicates TCP encapsulation.
fst Indicates FST encapsulation.
ip-address IP address.
name Name of a NetBIOS access filter previously defined with one or more netbios access-list host global configuration commands.
interface Indicates direct encapsulation.
interface-name Interface name.
host Host name.

sap priority number

Use the sap-priority interface configuration command to define a priority list on an interface.

number Priority list number you specified in the sap-priority-list command

sap-priority-list number queue-keyword [dsap ds] [ssap ss] [dmac dm]
[
smac sm]

Use the sap-priority-list global configuration command to define a priority 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) Indicates that the next argument, ds, represents the destination service access point address. The argument ds is a hexadecimal number.
ssap ss (Optional) Indicates that the next argument, ss, represents the source service access point address. The argument ss is a hexadecimal number.
dmac dm (Optional) Indicates that the next argument, dm, represents the destination MAC address. The argument dm is written as a dotted triple of four-digit hexadecimal numbers.
smac sm (Optional) Indicates that the next argument, sm, represents the source MAC address. The argument sm is written as a dotted triple of four-digit hexadecimal numbers.

show controllers token

Use the show controllers token privileged EXEC command to display information about memory management, error counters, and the board itself. Depending on the board being used, the output can vary. This command also displays proprietary information. Thus, the information that show controllers token displays is of primary use to our technical personnel. Information that is useful to users can be obtained using the show interfaces tokenring command, described later.

show interfaces tokenring [unit]

Use the show interfaces tokenring privileged EXEC command to display information about the Token Ring interface and the state of source-route bridging.

unit (Optional) Interface number. If you do not provide a value for the unit argument, the command displays statistics for all Token Ring interfaces.

show lnm bridge

Use the show lnm bridge privileged EXEC command to display all currently configured bridges and all parameters that are related to the bridge as a whole, not to one of its interfaces.

show lnm config

Use the show lnm config privileged EXEC command to display the logical configuration of all bridges configured in a router.

show lnm interface [interface]

Use the show lnm interface privileged EXEC command to display all LNM-related information about a specific interface, or about all interfaces.

interface (Optional) Number of a specific interface for which LNM-related information is to be displayed.

show lnm ring [ring-number]

Use the show lnm ring privileged EXEC command to display all LNM information about a specific Token Ring, or about all Token Rings.

ring-number (Optional) Number of a specific Token Ring. It can be a value in the range 1 through 4095.

show lnm station [address]

Use the show lnm station privileged EXEC command to display LNM-related information about a specific station, or about all known stations on all rings.

address (Optional) Address of a specific LNM station.

show local-ack

Use the show local-ack privileged EXEC command to display the current state of any current local acknowledgment for both LLC2 and SDLLC connections, as well as any configured passthrough rings.

show netbios-cache

Use the show netbios-cache privileged EXEC command to display a list of NetBIOS cache entries.

show rif

Use the show rif privileged EXEC command to display the current contents of the RIF cache.

show source-bridge

Use the show source-bridge privileged EXEC command to display the current source bridge configuration and miscellaneous statistics.

source-bridge local-ring bridge-number target-ring
no source-bridge

Use the source-bridge interface configuration command to configure an interface for source-route bridging. Use the no form of this command to disable source bridging on a particular interface.

local-ring

Ring number for this interface's Token Ring. It must be a decimal number between 1 and 4095 that uniquely identifies a network segment or ring within the bridged Token Ring network.

bridge-number Number that uniquely identifies the bridge connecting the local and target rings. It must be a decimal number between 1 and 15.
target-ring Decimal ring number of the destination ring on this router/bridge. It also must be unique within the bridged Token Ring network. The target ring can also be a ring group.

[no] source-bridge cos-enable

Use the source-bridge cos-enable global configuration command to force the router to read the contents of the Format Identification 4 (FID 4) frames to prioritize traffic when using TCP. Use the no form of this command to disable prioritizing.

[no] source-bridge enable-80d5

Use the source-bridge enable-80d5 global configuration command to change the router's Token Ring to Ethernet translation behavior. Use the no form of this command to restore the default behavior.

[no] source-bridge explorerq-depth number

Use the source-bridge explorerq-depth global configuration command to enable the explorer packet processing queue. Use the no form of this command to disable the explorer packet processing queue.

queue-max Maximum queue size. The valid range is 1 through 4096.

[no] source-bridge fst-peername local-interface-address

Use the source-bridge fst-peername global configuration command to set up a Fast Sequenced Transport (FST) peer name. Use the no form of this command to disable the IP address assignment.

local-interface-address IP address to assign to the local router

[no] source-bridge input-address-list access-list-number

Use the source-bridge input-address-list interface configuration command to assign an access list to a particular input interface for filtering the Token Ring or IEEE 802.2 source addresses. Use the no form of this command to remove the application of the access list.

access-list-number Number of the access list. The value must be in the range 700 through 799.

source-bridge input-lsap-list access-list-number

Use the source-bridge input-lsap-list interface configuration command to filter, on input, FDDI and IEEE 802-encapsulated packets that include the destination service access point (DSAP) and source service access point (SSAP) fields in their frame formats.

access-list-number Number of the access list. This access list is applied to all IEEE 802 or FDDI frames received on that interface prior to the source-routing process. Specify zero (0) to disable the filter. The value must be in the range 200 through 299.

source-bridge input-type-list access-list-number

Use the source-bridge input-type-list interface configuration command to filter SNAP-encapsulated packets on input.

access-list-number Number of the access list. This access list is applied to all SNAP frames received on that interface prior to the source-routing process. Specify zero (0) to disable the application of the access list on the bridge group. The value must be in the range 200 through 299.

source-bridge keepalive seconds
no source-bridge keepalive

Use the source-bridge keepalive interface configuration command to assign the keepalive interval of the remote source-bridging peer. Use the no form of this command to cancel previous assignments.

seconds Keepalive interval in seconds. The valid range is 10 through 300. The default is 30 seconds.

source-bridge largest-frame ring-group size
no source-bridge largest-frame ring-group

Use the source-bridge largest-frame global configuration command to configure the largest frame size that is used to communicate with any peers in the ring group. Use the no form of this command to cancel previous assignments.

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 through 4095.
size Maximum frame size.

[no] source-bridge old-sna

Use the source-bridge old-sna interface configuration command to rewrite the RIF headers of explorer packets sent by the PC/3270 emulation program to go beyond the local ring. Use the no form of this command to disable this compatibility mode.

[no] source-bridge output-address-list access-list-number

Use the source-bridge output-address-list interface configuration command to assign an access list to a particular output interface packet for filtering the Token Ring or IEEE 802.2 source (rather than destination) addresses. Use the no form of this command to remove the application of the access list.

access-list-number Number of the access list. The value must be in the range 700 through 799.

source-bridge output-lsap-list access-list-number

Use the source-bridge interface configuration command to filter, on output, FDDI and IEEE 802-encapsulated packets that include the destination service access point (DSAP) and source service access point (SSAP) fields in their frame formats.

access-list-number Number of the access list. This access list is applied just before sending out a frame to an interface. Specify zero (0) to disable the filter. The value must be in the range 200 through 299.

source-bridge output-type-list access-list-number

Use the source-bridge output-type-list interface configuration command to filter SNAP-encapsulated frames by type code on output.

access-list-number Number of the access list. This access list is applied just before sending out a frame to an interface. Specify zero (0) to disable the application of the access list on the bridge group. The value must be in the range 200 through 299.

[no] source-bridge passthrough ring-group

Use the source-bridge passthrough global configuration command to configure some sessions on a few rings to be locally acknowledged and the remaining to pass through. Use the no form of this command to disable passthrough on all the rings and allow the session to be locally acknowledged.

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 have specified with the source-bridge ring-group command. The valid range is 1 through 4095.

[no] source-bridge proxy-explorer

Use the source-bridge proxy-explorer interface configuration command to configure the interface to respond to any explorer packets from a source node that meet the conditions described in the "Usage Guidelines" section for this command in the Router Products Command Reference publication. Use the no form of this command to cancel responding to explorer packets with proxy explorers.

[no] source-bridge proxy-netbios-only

Use the source-bridge proxy-netbios-only interface configuration command to enable proxy explorers for the NetBIOS name-caching function. Use the no form of this command to disable the NetBIOS name-caching function.

source-bridge remote-peer ring-group fst ip-address [lf size]
no source-bridge remote-peer ring-group fst ip-address

Use the source-bridge remote-peer fst global configuration command to specify a Fast Sequenced Transport (FST) encapsulation connection. Use the no form of this command to disable the previous assignments.

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 through 4095.
ip-address IP address of the remote peer with which the router will communicate.
lf size (Optional) Maximum size frame to be sent to this remote peer. The router 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.

source-bridge remote-peer ring-group interface interface-name
[mac-address] [lf size]
no source-bridge remote-peer ring-group interface interface-name

Use the source-bridge remote-peer interface global configuration command when specifying a point-to-point direct encapsulation connection. Use the no form of this command to disable previous interface assignments.

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 through 4095.
interface-name Name of the router's serial interface over which to send source-route bridged traffic.
mac-address (Optional) MAC address for the interface you specify using the interface-name argument. 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 interface-name.
lf size (Optional) Maximum size frame to be sent to this remote peer. The router 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.

source-bridge remote-peer ring-group tcp ip-address [lf size]
[local-ack] [priority]
no source-bridge remote-peer ring-group tcp ip-address

Use the source-bridge remote-peer tcp global configuration command to identify the IP address of a peer in the ring group with which to exchange source-bridge traffic using TCP. Use the no form of this command to remove a remote peer for the specified ring group.

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 through 4095.
ip-address IP address of the remote peer with which the router will communicate.
lf size (Optional) Maximum size frame to be sent to this remote peer. The router negotiates all transit routes down to this size or lower. Use this argument pair 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.
local-ack (Optional) LLC2 sessions destined for a specific remote peer are to be locally terminated and acknowledged. Local acknowledgment should be used 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 SNA class of service and SNA LU address prioritization over a TCP network.

[no] source-bridge ring-group ring-group

Use the source-bridge ring-group global configuration command to define or remove a ring group from the router configuration. Use the no form of this command to cancel previous assignments.

ring-group Ring group number. The valid range is 1 through 4095.

[no] source-bridge route-cache

Use the source-bridge route-cache interface configuration command to enable fast switching. Use the no form of this command to disable fast switching.

[no] source-bridge route-cache cbus

Use the source-bridge route-cache cbus interface configuration command to enable autonomous switching. Use the no form of this command to disable autonomous switching.

[no] source-bridge route-cache sse

Use the source-bridge route-cache interface configuration command to enable Cisco's Silicon Switching Engine (SSE) switching function. Use the no form of this command to disable SSE switching.

[no] source-bridge sap-80d5 dsap

Use the source-bridge sap-80d5 global configuration command to allow non-IBM hosts (attached to a router with 80d5 processing enabled) to use the standard Token Ring to Ethernet LLC2 translation instead of the nonstandard Token Ring to Ethernet 80d5 translation. Use the no form of this command to disable this feature.

dsap Destination service access point (DSAP)

[no] source-bridge spanning

Use the source-bridge spanning interface configuration command to enable use of spanning explorers. The no form of this command blocks spanning explorers only; everything else is forwarded.

source-bridge tcp-queue-max number
no source-bridge tcp-queue-max

Use the source-bridge tcp-queue-max global configuration command to modify the size of the backup queue for remote source-route bridging. Use the no form of this command to return to the default value.

number Number of packets to hold in any single outgoing TCP queue to a remote router. The default is 100 packets.

source-bridge transparent ring-group pseudo-ring bridge-number
tb-group 
[oui]
no source-bridge transparent ring-group pseudo-ring bridge-number
tb-group

Use the source-bridge transparent global configuration command to establish bridging between transparent bridging and source-route bridging. Use the no form of this command to disable a previously established link between a source-bridged ring group and a transparent bridge group.

ring-group Virtual ring group created by the source-bridge ring-group command. This is the source-bridge virtual ring to associate with the transparent bridge group. This ring group number must match the number you have specified with the source-bridge ring-group command. The valid range is 1 through 4095.
pseudo-ring Ring number used to represent the transparent bridging domain to the source-route bridged domain. This number must be a unique number, not used by any other ring in your source-route bridged network.
bridge-number Bridge number of the bridge that leads to the transparent bridging domain.
tb-group Number of the transparent bridge group that you want to tie into your source-route bridged domain. The no form of this command disables this feature.
oui (Optional) Organizational unique identifier. Possible values include: 90-compatible, standard, and cisco.

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