4.4. PBB Configuration Command Reference

This command administratively disables an entity. When disabled, an entity does not change, reset, or remove any configuration settings or statistics.

The operational state of the entity is disabled as well as the operational state of any entities contained within.

The no form of this command administratively enables an entity.

SPB Interface — In the config>service>vpls b-vpls>spb> context, the command disables the IS-IS interface. By default, the IS-IS interface is disabled (shutdown).

This command creates or edits a Virtual Private LAN Services (VPLS) instance. The vpls command is used to create or maintain a VPLS service. If the service-id does not exist, a context for the service is created. If the service-id exists, the context for editing the service is entered.

A VPLS service connects multiple customer sites together acting like a zero-hop, Layer 2 switched domain. A VPLS is always a logical full mesh.

When a service is created, the create keyword must be specified if the create command is enabled in the environment context. When a service is created, the customer keyword and customer-id must be specified and associates the service with a customer. The customer-id must already exist having been created using the customer command in the service context. When a service has been created with a customer association, it is not possible to edit the customer association. The service must be deleted and re-created with a new customer association.

When a service is created, the use of the customer customer-id is optional for navigating into the service configuration context. Attempting to edit a service with the incorrect customer-id specified will result in an error.

More than one VPLS service may be created for a single customer ID.

By default, no VPLS instances exist until they are explicitly created.

The no form of this command deletes the VPLS service instance with the specified service-id. The service cannot be deleted until all SAPs and SDPs defined within the service ID have been shutdown and deleted, and the service has been shutdown.

This command binds a VPLS service to an existing Service Distribution Point (SDP). Mesh SDPs bound to a service are logically treated like a single bridge “port” for flooded traffic where flooded traffic received on any mesh SDP on the service is replicated to other “ports” (spoke-SDPs and SAPs) and not transmitted on any mesh SDPs.

This command creates a binding between a service and an SDP. The SDP has an operational state which determines the operational state of the SDP within the service. For example, if the SDP is administratively or operationally down, the SDP for the service will be down.

The SDP must already be defined in the config>service>sdp context in order to associate the SDP with a valid service. If the sdp sdp-id is not already configured, an error message is generated. If the sdp-id does exist, a binding between that sdp-id and the service is created.

SDPs must be explicitly associated and bound to a service. If an SDP is not bound to a service, no far-end devices can participate in the service.

The no form of this command removes the SDP binding from the service. The SDP configuration is not affected; only the binding of the SDP to a service. After it is removed, no packets are forwarded to the far-end router.

This command binds a service to an existing Service Distribution Point (SDP). A spoke-SDP is treated like the equivalent of a traditional bridge “port” where flooded traffic received on the spoke-SDP is replicated on all other “ports” (other spoke and mesh SDPs or SAPs) and not transmitted on the port it was received.

The SDP has an operational state which determines the operational state of the SDP within the service. For example, if the SDP is administratively or operationally down, the SDP for the service will be down.

The SDP must already be defined in the config>service>sdp context in order to associate an SDP with a VPLS service. If the sdp sdp-id is not already configured, an error message is generated. If the sdp-id does exist, a binding between that sdp-id and the service is created.

SDPs must be explicitly associated and bound to a service. If an SDP is not bound to a service, no far-end devices can participate in the service.

The no form of this command removes the SDP binding from the service. The SDP configuration is not affected; only the binding of the SDP to a service. After it is removed, no packets are forwarded to the far-end router.

This command enables Shortest Path Bridging (SPB) on a B-VPLS instance. SPB uses IS-IS that supports multiple instances, therefore an instance must be specified. The declaration of SPB in this context is the control configuration for the SPB. This is an SPB management interface and it manages the configuration for IS-IS. Various parameters that define this SPB instance are configured under this SPB instance. Several of the parameters are shared with other B-VPLS service instances using SPB.

SPB enables an instance of IS-IS protocol with the no shutdown command. Alternatively, the IS-IS protocol instance under SPB is disabled with the shutdown command in the config>service>vpls b-vpls>spb context.

A Forwarding Identifier (FID) is optionally specified which is an abstraction of the BVID used for forwarding in SPB. When no FID is configured the control VPLS is advertised with FID value 1. When a FID value is specified, the control VPLS is advertised and associated with the FID value specified. The default algorithm for any FID declared or implicit is low-path-id. When a FID is specified, the ect-algorithm can be specified for the FID and changed only when there are no VPLS, SAPs or SDP bindings associated with the FID. The FID for a control instance cannot be changed after it is created. To change a FID the SPB component would have to be shutdown, deleted and re-created with a new FID.

Note: SPB operates with disable-learning, disable aging and discard-unknown. The state of these commands is ignored when SPB is configured.

This command creates the context to configure SPB Level 1 or Level 2 area attributes. This is IS-IS levels. Only Level 1 can be configured.

A Level 1 adjacency can be established only with other Level 1 B-VPLS. A Level 2 adjacency can be established only with other Level 2 B-VPLS. Currently there is no support for level 1 and level 2 in the same instance of SPB.

This command configures the four bit bridge priority for Shortest Path Bridging. This value is added to the 6 byte bridge Identifier (which is the system-id) in the top four bits of a two byte field. Note the actual value will be bit shifted 12 bits left effective putting this in the high bits of the 16 bits added to system ID.

The bridge priority is important in choosing the Root Bridge for the single tree algorithm (lowest value = best). Bridge priority also factors into the tie breaker for SPF algorithms as described in the SPB standard. The bridge-identifier (system-id) of the control B-VPLS determines the tiebreaker when the bridge-priorities are equal.

This command configures the ect-algorithm associated with a FID. Names are:

The algorithm for low-path-id chooses the path with the lowest metric and uses the sum of each Bridge-ID to break-ties (in this case preferring the lowest bridge identifiers).

The algorithm for high-path-id choose the path with the lowest metric and the sum of each Bridge-ID (after each one is modified by the algorithm mask) to break-ties (in this case preferring the highest bridge identifiers).

A Forwarding Identifier (FID) is an abstraction of the IEEE 802.1 SPB Base VID and represents the VLAN (B-VPLS) in IS-IS LSPs. B-VPLS services with the same FID share B-MACs and I-SIDs. (the SAP encapsulation VLAN tag may be set to the same value as the FID or to any other valid VLAN tag). One or more FIDs can be associated with an ECT-algorithm by using the FID range. User B-VPLS services may share the same FID as the control B-VPLS or use independent FIDs where each FID has an assigned ect-algorithm. B-VPLS services with i-vpls services must have an independent FID. B-VPLS services with only PBB Epipes may share FIDs with other B-VPLS services including the control B-VPLS service.

The ect-algorithm is associated with the FID and can only be changed only when there are no VPLS, SAPs or SDP bindings associated with the FID. The FID must be independent from the FID assigned to other services.

This command sets the unicast forwarding to follow the shortest path tree defined by the ECT algorithm shortest path forwarding (spf) or to follow a single tree. (st). Shortest path trees make use of more link resources.

Multicast traffic is defaulted to follow the single tree topology. A single tree unicast would make Multicast and unicast follow the same path.

This command sets the time, in seconds, SPB wants the LSPs it originates to be considered valid by other routers in the domain. This is a control B-VPLS command.

Each LSP received is maintained in an LSP database until the lsp-lifetime expires unless the originating router refreshes the LSP. By default, each router refreshes its LSPs every 20 minutes (1200 seconds) so other routers will not age out the LSP.

The LSP refresh timer is derived from this formula: lsp-lifetime/2.

The no form of this command reverts to the default value.

This command configures the LSP refresh timer interval. When configuring the LSP refresh interval, the value that is specified for lsp-lifetime must also be considered. The LSP refresh interval cannot be greater than 90% of the LSP lifetime.

The no form of this command reverts to the default (600 seconds), unless this value is greater than 90% of the LSP lifetime. For example, if the LSP lifetime is 400, then the no lsp-refresh-interval command will be rejected.

This command administratively sets the SPB to operate in the overload state for a specific time period, in seconds, or indefinitely. During normal operation, the router may be forced to enter an overload state due to a lack of resources. When in the overload state, the router is only used if the destination is reachable by SPB and is not used for other transit traffic.

If a time period is specified, the overload state persists for the configured length of time. If no time is specified, the overload state operation is maintained indefinitely.

The overload command can be useful in circumstances where SPB is overloaded or used prior to executing a shutdown command to divert traffic around the switch.

The no form of this command causes the router to exit the overload state.

When the router is in an overload state, SPB the B-VPLS is used only if there is no other SPB B-VPLS to reach the destination. This command configures the IGP upon bootup in the overload state until one of the following events occur:

The no form of this command does not affect the overload-on-boot function.

If no timeout is specified, SPB IS-IS goes into overload indefinitely after a reboot. After the reboot, the SPB IS-IS status displays a permanent overload state:

L1 LSDB Overload: Manual on boot (Indefinitely in overload)

This state can be cleared with the config>service>vpls instance >b-vpls>spb>no overload command.

When specifying a timeout value, SPB IS-IS goes into overload for the configured timeout after a reboot. After the reboot, SPB IS-IS status displays the remaining time the system stays in overload:

L1 LSDB Overload: Manual on boot (Overload Time Left: 17)

The overload state can be cleared before the timeout expires with config>service>vpls instance>b-vpls>spb>no overload command.

The no form of this command removes the overload-on-boot functionality from the configuration.

This command enables the context to configure SPB timers.

This command is used to customize LSP generation throttling. Timers that determine when to generate the first, second and subsequent LSPs can be controlled with this command. Subsequent LSPs are generated at increasing intervals of the second lsp-wait timer until a maximum value is reached.

Note: The IS-IS timer granularity is 100 ms. Timer values are rounded down to the nearest granularity, for example a configured value of 550 ms is internally rounded down to 500 ms.

This command defines the maximum interval between two consecutive SPF calculations in milliseconds. Timers that determine when to initiate the first, second and subsequent SPF calculations after a topology change occurs can be controlled with this command.

Subsequent SPF runs (if required) will occur at exponentially increasing intervals of the spf-second-wait interval. For example, if the spf-second-wait interval is 1000, then the next SPF will run after 2000 milliseconds, and then next SPF will run after 4000 milliseconds, etc., until it reaches the spf-wait value. The SPF interval will stay at spf-wait value until there are no more SPF runs scheduled in that interval. After a full interval without any SPF runs, the SPF interval will drop back to spf-initial-wait.

This command associates a user B-VPLS with a particular control B-VPLS and a FID. The ECT algorithm and the behavior of unicast and multicast come from the association to the FID.

A Forwarding Identifier (FID) is specified which is an abstraction of the BVID used for forwarding in SPB. The ect-algorithm is associated with the FID and can be changed only when there are no VPLS, SAPs or SDP bindings associated with the FID. The FID must be independent from the FID assigned to other services.

This command configures Multiple Registration Protocol (MRP) parameters. MRP is valid only under B-VPLS.

This command configures MMRP parameters.

This command specifies the percentage filling level of the MMRP attribute table where logs and traps are sent.

This command specifies the MMRP attribute table low watermark as a percentage. When the percentage filling level of the MMRP attribute table drops below the configured value, the corresponding trap is cleared and/or a log entry is added.

This command controls the number of attributes accepted on a per B-VPLS basis. When the limit is reached, no new attributes will be registered.

If a new lower limit (smaller than the current number of attributes) from a local or dynamic I-VPLS is being provisioned, a CLI warning will be issued stating that the system is currently beyond the new limit. The value will be accepted, but any creation of new attributes will be blocked under the attribute count drops below the new limit; the software will then start enforcing the new limit.

This command controls the settings for the MAC notification message.

The mac-notification message must be generated under the following events:

The MAC notification is not sent for the following events:

This command configures how often MAC notification messages are sent.

This command controls the frequency of subsequent MAC notification messages.

This command configures a Multi-service Route Processor (MRP).

This command copies existing mrp-policy list entries for a specific policy name to another policy name. The copy command is a configuration level maintenance tool used to create new mrp-policy using existing mrp-policy.

An error will occur if the destination policy name exists.

This command enables the context for a MRP policy. The mrp-policy specifies either a forward or a drop action for the Group B-MAC attributes associated with the ISIDs specified in the match criteria. The mrp-policy can be applied to multiple BVPLS services as long as the scope of the policy is template.

Any changes made to the existing policy, using any of the sub-commands, will be applied immediately to all services where this policy is applied. For this reason, when many changes are required on a mrp-policy, Nokia recommends that the policy be copied to a work area. That work-in-progress policy can be modified until complete and then written over the original mrp-policy. Use the config mrp-policy copy command to maintain policies in this manner.

The no form of this command deletes the mrp-policy. An MRP policy cannot be deleted until it is removed from all the SAPs or SDPs where it is applied.

This command specifies the action to be applied to the MMRP attributes (Group B-MACs) whose ISIDs do not match the specified criteria in all of the entries of the mrp-policy.

When multiple default-action commands are entered, the last command will overwrite the previous command.

This command creates a text description stored in the configuration file for a configuration context.

The description command associates a text string with a configuration context to help identify the content in the configuration file.

The no form of this command removes the string from the configuration.

This command creates or edits an mrp-policy entry. Multiple entries can be created using unique entry-id numbers within the policy. The implementation exits the policy on the first match found and executes the actions in accordance with the accompanying action command. For this reason, entries must be sequenced correctly from most to least explicit. An entry may not have any match criteria defined (in which case, everything matches) but must have at least the keyword action for it to be considered complete. Entries without the action keyword will be considered incomplete and therefore will be rendered inactive.

The no form of this command removes the specified entry from the mrp-policy. Entries removed from the mrp-policy are immediately removed from all services where the policy is applied.

The no form of this command removes the specified entry-id.

This command specifies the action to be applied to the MMRP attributes (Group B-MACs) whose ISIDs match the specified ISID criteria in the related entry.

The action keyword must be entered for the entry to be active. Any filter entry without the action keyword will be considered incomplete and will be inactive. If neither keyword is specified (no action is used), this is considered a No-Op policy entry used to explicitly set an entry inactive without modifying match criteria or removing the entry itself. Multiple action statements entered will overwrite previous actions parameters when defined. To remove a parameter, use the no form of the action command with the specified parameter.

The no form of this command removes the specified action statement. The entry is considered incomplete and therefore rendered inactive without the action keyword.

This command creates the context for entering/editing match criteria for the mrp-policy entry. When the match criteria have been satisfied the action associated with the match criteria is executed. In the current implementation just one match criteria (ISID based) is possible in the entry associated with the mrp-policy. Only one match statement can be entered per entry.

The no form of this command removes the match criteria for the entry-id.

This command configures an ISID value or a range of ISID values to be matched by the mrp-policy parent when looking at the related MMRP attributes (Group B-MACs). The pbb-etype value for the related SAP (inherited from the Ethernet port configuration) or for the related SDP binding (inherited from SDP configuration) will be used to identify the ISID tag.

Multiple isid statements are allowed under a match node. The following rules govern the usage of multiple isid statements:

The no form of this command can be used in two ways:

no isid - removes all the previous statements under one match node

no isid value to higher-value - removes a specific ISID value or range. Must match a previously used positive statement: for example if the command “isid 16 to 100” was used using “no isid 16 to 50” will not work but “no isid 16 to 100 will be successful.

This command renumbers existing MRP policy entries to properly sequence policy entries. This may be required in some cases since the implementation exits when the first match is found and executes the actions according to the accompanying action command. This requires that entries be sequenced correctly from most to least explicit.

This command configures the filter policy scope as exclusive or template. If the scope of the policy is template and is applied to one or more services, the scope cannot be changed.

The no form of this command sets the scope of the policy to the default of template.

This command configures global PBB parameters.

This command configures the MAC name for the MAC address. It associates an ASCII name with an IEEE MAC to improve the PBB Epipe configuration. It can also change the dest-BMAC in one place instead of 1000s of Epipe.

This command configures the source B-VPLS MAC address to use with PBB and provisions a chassis level source B-MAC.

This command configures B-VPLS service associated with the I-VPLS.

This command configures IGMP snooping attributes for I-VPLS.

This command configures MLD snooping attributes for I-VPLS.

This command configures attributes of a SAP on the B-VPLS service.

This command configures attributes of a SDP binding on the B-VPLS service.

This command enables or disable STP through B-VPLS service.

This command configures the destination B-MAC address name to be used in the related backbone VPLS to reach a specific IGMP or MLD snooping MRouter. The name is associated at system level with the MAC address, using the command mac-name.

This command specifies whether a multicast router is attached behind this SAP or spoke-SDP.

Configuring a SAP or spoke-SDP as an mrouter-port will have a double effect. Firstly, all multicast traffic received on another SAP or spoke-SDP will be copied to this SAP or spoke-SDP. Secondly, IGMP or MLD reports generated by the system as a result of someone joining or leaving a multicast group, will be sent to this SAP or SDP.

If two multicast routers exist in the local area network, one of them will become the active querier. The other multicast router (non-querier) stops sending IGMP or MLD queries, but it should still receive reports to keep its multicast trees up to date. To support this, the mrouter-port should be enabled on all SAPs or spoke-SDPs connecting to a multicast router.

The IGMP version to be used for the reports (v1, v2 or v3) or MLD version (v1 or v2) can only be determined after an initial query has been received. Until such time no reports are sent on the SAP, even if mrouter-port is enabled.

If the send-queries command is enabled on this SAP or spoke-SDP, the mrouter-port parameter cannot be set.

This command forces the addition of a IEEE 802.1q tag after the Customer MAC (C-MAC) addresses when the PBB header is built, as it egresses a related BVPLS.

It is used to preserve the dot1q and DE bits from the customer domain when the service delimiting qtags are stripped when the packet is ingressing a PBB Epipe or an IVPLS. The VLAN value of the service delimiting QTAG if one exists is used for the corresponding inserted dot1q field. If a service delimiting QTAG does not exist, then the value of zero is used for all the inserted QTAG bits.

The no form of this command sets default behavior.

This command enables the propagation in the local PBB of any regular LDP MAC Flush received in the related B-VPLS. If an LDP MAC flush-all-but-mine is received in the B-VPLS context, the command controls also whether a flush is performed for all the customer MACs in the associated FDB. The command does not have any effect on a PBB MAC Flush (LDP MAC flush with PBB TLV) received in the related B-VPLS context.The no form of this command disables the propagation of LDP MAC Flush i from the related B-VPLS.

This command configures the BVPLS flush. If B-SDPs are used and MAC notification mechanism is turned on in the related BVPLS (MPLS use case), it makes sense to turn off the T-LDP MAC Flush.

This command enables the generation in the local I-VPLS of an LDP MAC flush-all-from-me following a failure of SAP/the whole endpoint/spoke-SDP in the related B-VPLS. The failure of mesh-SDP in B-VPLS does not generate the I-VPLS MAC flush.

The no form of this command disables the generation of LDP MAC flush in I-VPLS on failure of SAP/endpoint/spoke-SDP in the related B-VPLS.

This command configures the base source B-MAC for the B-VPLS. The first 32 bits must be the same with what is configured in the MC-LAG peer. If not configured here, it will inherit the chassis level B-MAC configured under the new PBB object added in the previous section. If the use-sap-bmac command is on, the value of the last 16 bits (lsb) of the source B-MAC must be part of the reserved-source-bmac-lsb configured at chassis level, under service PBB component. If that is not the case, the command will fail.

This command enables on a per BVPLS basis the use of source B-MACs allocated to multi-homed SAPs (assigned to an MC-LAG) in the related IVPLS or Epipe service. The command will fail if the value of the source-bmac assigned to the BVPLS is the hardware (chassis) B-MAC. That is, the source-bmac must be a configured one.

This command enables sending out flush-all-from-me messages to all LDP peers included in affected VPLS, in the event of physical port failures or “operationally down” events of individual SAPs. This feature provides an LDP-based mechanism for recovering a physical link failure in a dual-homed connection to a VPLS service. This method provides an alternative to RSTP solutions where dual homing redundancy and recovery, in the case of link failure, is resolved by RSTP running between a PE router and CE devices. If the endpoint is configured within the VPLS and send-flush-on-failure is enabled, flush-all-from-me messages will be sent out only when all spoke-SDPs associated with the endpoint go down.

This feature cannot be enabled on management VPLS.

This command controls the interval between transmit opportunities that are applied to the Applicant state machine. An instance of this Join Period Timer is required on a per-Port, per-MRP Participant basis. For additional information, refer to IEEE 802.1ak-2007 section 10.7.4.1.

This command controls the frequency with which the LeaveAll state machine generates LeaveAll PDUs. The timer is required on a per-Port, per-MRP Participant basis. The Leave All Period Timer is set to a random value, T, in the range LeaveAllTime<T<1.5*leave-all-time when it is started. Refer to IEEE 802.1ak-2007 section 10.7.4.3.

This command controls the period of time that the Registrar state machine will wait in the leave state before transitioning to the MT state when it is removed. An instance of the timer is required for each state machine that is in the leave state. The Leave Period Timer is set to the value leave-time when it is started.

A registration is normally in an “in” state where there is an MFIB entry and traffic is being forwarded. When a “leave all” is performed (periodically around every 10-15 seconds per SAP/SDP binding - see leave-all-time-below), a node sends a message to its peer indicating a leave all is occurring and puts all of its registrations in leave state.

The peer refreshes its registrations based on the leave all PDU it receives and sends a PDU back to the originating node with the state of all its declarations.

Refer to IEEE 802.1ak-2007 section 10.7.4.2.

This command instructs MMRP to use the mrp-policy defined in the command to control which group B-MAC attributes will be declares and registered on the egress SAP/Mesh-SDP/Spoke-SDP. The Group B-MACs will be derived from the ISIDs using the procedure used in the PBB solution. The Group MAC = standard OUI with the last 24 bits being the ISID value. If the policy-name refers to a non-existing mrp-policy the command should return error. Changes to a mrp-policy are allowed and applied to the SAP/SDPs under which the policy is referenced.

This command controls the frequency the Periodic Transmission state machine generates periodic events if the Periodic Transmission Timer is enabled. The timer is required on a per-Port basis. The Periodic Transmission Timer is set to one second when it is started.

This command enables or disables the Periodic Transmission Timer.

This command enables Shortest Path Bridging (SPB) on SAP or Spoke SDP. The B-VPLS may be a control B-VPLS or user B-VPLS. Since SPB uses IS-IS that supports multiple instances, SPB inherits the instance from the control B-VPLS.

SPB at this context level is enabled immediately. SPB enables an instance of IS-IS protocol with the no shutdown command. Alternatively, the IS-IS protocol instance under SPB is disabled with the shutdown command in the config>service>vpls b-vpls>spb context.

This command configures the interval during which LSPs are sent from the interface.To avoid overwhelming neighbors that have less CPU processing power with LSPs, the pacing interval can be configured to limit how many LSPs are sent during an interval. LSPs may be sent in bursts during the interval up to the configured limit. If a value of 0 is configured, no LSPs are sent from the interface.

The no form of this command reverts to the default value.

Note: The IS-IS timer granularity is 100 ms. Timer values are rounded down to the nearest granularity, for example a configured value of 550 ms is internally rounded down to 500 ms.

This command configures the minimum time between LSP PDU retransmissions on a point-to-point interface. This command is valid only for interfaces on control B-VPLS.

The no form of this command reverts to the default value.

This configures metric for this SPB interface SAP/spoke-sdp. This command is valid only for interfaces on control B-VPLS.

This command configures the interval in seconds between hello messages issued on this interface at this level. This command is valid only for interfaces on control B-VPLS.

The no form of this command to reverts to the default value.

This command configures the number of missing hello PDUs from a neighbor SPB declares the adjacency down. This command is valid only for interfaces on control B-VPLS.

The no form of this command reverts to the default value.

This command configures a VPLS site.

The no form of this command removes the name from the configuration.

This command configures for how long the service manager waits after a node reboot before running the DF election algorithm. The boot-timer value should be configured to allow for the BGP sessions to come up and for the NLRI information to be refreshed/exchanged.

The no form of this command reverts the default.

This command defines the number of objects should be down for the site to be declared down. Both administrative and operational status must be evaluated and if at least one is down, the related object is declared down.

This command enables applications to all mesh SDPs.

The no form of reverts the default.

This command specifies the operational group to be monitored by the object under which it is configured. The oper-group name must be already configured under the config>service context before its name is referenced in this command.

The no form of this command removes the association.

This command configures a SAP for the site.

The no form of this command removes the SAP ID from the configuration.

This command configures the time-period the system keeps the local sites in standby status, waiting for BGP updates from remote PEs before running the DF (designated-forwarder) election algorithm to decide whether the site should be unblocked. This timer if terminated if an update is received for which the remote PE has transitioned from DF to non-DF.

The no form of this command removes the value from the configuration.

This command configures the BGP multi-homing site minimum down time. When set to a non-zero value, if the site goes operationally down it will remain operationally down for at least the length of time configured for the site-min-down-timer, regardless of whether other state changes would have caused it to go operationally up. This timer is restarted every time that the site transitions from up to down. Setting this parameter to zero allows the minimum down timer to be disabled for this service.

The above operation is optimized in the following circumstances:

The no form of this command reverts to the default value.

This command configures the identifier for the site in this service.

This command configures the value of split-horizon group associated with this site.

The no form of this command reverts the default.

This command binds a service to an existing Service Distribution Point (SDP).

The no form of this command removes the parameter from the configuration.

This command associates a BVPLS SAP with the global Ethernet tunnel object specified by tunnel-id. Only one-to-one mapping between SAP and Ethernet tunnel is supported in the initial implementation. The global eth-tunnel tunnel-id with at least a member port must be configured in advance for the command to be successful. A SAP will be instantiated using the active path components (member port and control-tag) for VPLS forwarding. The last member port in the Ethernet tunnel cannot be deleted if there is a SAP configured on that eth-tunnel. This command is only available in the BVPLS context.

The no form of this command removes the sap from the Ethernet tunnel object.

This command configures the amount of time, in seconds, after a status change in the VPLS service during which traffic is flooded. When that time expires, traffic will be delivered according to the MMRP registrations that exist in the VPLS. When “no flood-time” is executed, flooding behavior is disabled.

This command disables the sending of the notification message in the BVPLS domain.

This command configures an Epipe service instance. This command is used to configure a point-to-point epipe service. An Epipe connects two endpoints defined as Service Access Points (SAPs). Both SAPs may be defined in one or, for the 7750 SR, they may be defined in separate devices connected over the service provider network. When the endpoint SAPs are separated by the service provider network, the far end SAP is generalized into a Service Distribution Point (SDP). This SDP describes a destination and the encapsulation method used to reach it.

No MAC learning or filtering is provided on an Epipe.

When a service is created, the customer keyword and customer-id must be specified and associates the service with a customer. The customer-id must already exist having been created using the customer command in the service context. After a service has been created with a customer association, it is not possible to edit the customer association. The service must be deleted and re-created with a new customer association.

After a service is created, the use of the customer customer-id is optional for navigating into the service configuration context. Attempting to edit a service with the incorrect customer-id specified will result in an error.

By default, no Epipe services exist until they are explicitly created with this command.

The no form of this command deletes the Epipe service instance with the specified service-id. The service cannot be deleted until the service has been shutdown.

This command configures a Provider Backbone Bridging (PBB) tunnel with Backbone VPLS (B-VPLS) service information.

This command associated the I-VPLS with the B-VPLS service. The ISID value is used to mux/demux packets for the VPLS flowing through the B-VPLS.