Virtual Private LAN Services
7210 SAS-X, R6 OS Services Guide Page 405
ether — Defines the VC type as Ethernet. The ethernet and vlan keywords are mutually exclusive.
When the VC type is not defined then the default is Ethernet for spoke SDP bindings. Defining
Ethernet is the same as executing no vc-type and restores the default VC type for the spoke SDP
binding. (hex 5)
split-horizon-group group-name — Specifies the name of the split horizon group to which the SDP
belongs.
vc-type — This command overrides the default VC type signaled for the spoke or mesh binding to
the far end of the SDP. The VC type is a 15 bit-quantity containing a value which represents the
type of VC. The actual signaling of the VC type depends on the signaling parameter defined for
the SDP. If signaling is disabled, the vc-type command can still be used to define the dot1q value
expected by the far-end provider equipment. A change of the bindings VC type causes the
binding to signal the new VC type to the far end when signaling is enabled.
VC types are derived according to IETF draft-martini-l2circuit-trans-mpls.
• The VC type value for Ethernet is 0x0005.
• The VC type value for an Ethernet VLAN is 0x0004.
Values ether, vlan
vlan — Defines the VC type as VLAN. The ethernet and vlan keywords are mutually exclusive.
When the VC type is not defined then the default is Ethernet for spoke SDP bindings.
The VLAN VC-type requires at least one dot1Q tag within each encapsulated Ethernet packet
transmitted to the far end.
control-word
Syntax [no] control word
Context config>service>vpls>mesh-sdp
config>service>vpls>spoke-sdp
Description This command enables the use of the control word on pseudowire packets in VPLS and enables the
use of the control word individually on each mesh SDP or spoke SDP. By default, the control word is
disabled. When the control word is enabled, all VPLS packets, including the BPDU frames, are
encapsulated with the control word when sent over the pseudowire. The T-LDP control plane
behavior is the same as in the implementation of control word for VLL services. The configuration
for the two directions of the Ethernet pseudowire should match. The no form of the command reverts
the mesh SDP or spoke SDP to the default behavior of not using the control word.
Default no control word
egress
Syntax egress
Context config>service>vpls>mesh-sdp
config>service>vpls>spoke-sdp
Description This command configures the egress SDP context.
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