VLL Services
7705 SAR OS Services Guide Page 267
SDP Cell Concatenation Commands
cell-concatenation
Syntax cell-concatenation
Context config>service>apipe>spoke-sdp
Description This command enables the context to provide access to the various options that control the
termination of ATM cell concatenation into an MPLS frame. Several options can be configured
simultaneously. The concatenation process for a given MPLS packet ends when the first
concatenation termination condition is met. The concatenation parameters apply only to ATM N-to-1
cell mode VLL.
Frame boundaries are not configurable.
clp-change
Syntax [no] clp-change
Context config>service>apipe>spoke-sdp>cell-concatenation
Description This command enables the configuration of CLP change to be an indication to complete the cell
concatenation operation.
The no form of the command resets the configuration to ignore the CLP change as an indication to
complete the cell concatenation.
max-cells
Syntax max-cells cell-count
no max-cells [cell-count]
Context config>service>apipe>spoke-sdp>cell-concatenation
Description This command enables the configuration of the maximum number of ATM cells to accumulate in an
MPLS packet. The remote peer will also signal the maximum number of concatenated cells it is
willing to accept in an MPLS packet. When the lesser of the configured value and the signaled value
is reached, the MPLS packet is queued for transmission onto the pseudowire. It is ensured that the
MPLS packet MTU conforms to the configured service MTU.
If the max-delay and jitter buffer options are not configured, then the maximum number of cells
allowed in a single VLL frame must be less than the configured service-mtu size.
The no form of this command sets max-cells to the value “1”, indicating that no concatenation will be
performed.
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