Virtual Private LAN Services
Page 390 7210 SAS M Services Guide
service-mtu-check
Note: This command is supported on 7210 SAS-M in Network mode.
Syntax [no] service-mtu-check
Context config>service>vpls
Description The no form of this command disables the service MTU checks. Disabling service MTU check allows
the packets to pass to the egress if the packet length is lesser than or equal to the MTU configured on
the port. The length of the packet sent from a SAP is limited only by the access port MTU. In case of
a pseudowire the length of a packet is limited by the network port MTU (including the MPLS
encapsulation).
Note: If TLDP is used for signaling,the configured value for service-mtu is used during a pseudowire
setup.
Default enabled
split-horizon-group
Note: This command is supported on 7210 SAS-M in Network mode . It is not available in 7210
SAS-M in access-uplink mode.
Syntax [no] split-horizon-group [group-name] [create]
Context config>service>vpls
Description This command creates a new split horizon group for the VPLS instance. Traffic arriving on a SAP or
spoke SDP within this split horizon group will not be copied to other SAPs or spoke SDPs in the same
split horizon group.
A split horizon group must be created before SAPs and spoke SDPs can be assigned to the group.
The split horizon group is defined within the context of a single VPLS. The same group-name can be
re-used in different VPLS instances.
Note: In 7210-SAS devices, use of SAP or Spoke-SDP Split-horizon group and Mesh-SDP are
mutually exclusive.
The no form of the command removes the group name from the configuration.
Parameters group-name — Specifies the name of the split horizon group to which the SAP or spoke-SDP
belongs.
create — Mandatory keyword to create a split-horizon group.
root-guard
Syntax [no] root-guard
Context config>service>vpls>sap>stp
config>service>vpls>spoke-sdp>stp
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