Alcatel-Lucent 7705 - Page 250

VLL Services Command Reference
Page 250 7705 SAR OS Services Guide
size — For convenience, the payload size can be configured at the same time as the jitter buffer. This
avoids any configuration errors due to interactions between the jitter buffer and payload size
settings. See
payload-size.
payload-size
Syntax payload-size size
Context config>service>cpipe>sap>cem>packet
Description This parameter defines the payload size for one circuit emulation service packet.
Default
For SAToP, see
Table 18. For CESoPSN without CAS, see Table 19. For CESoPSN with CAS, see
Table 20.
Parameters size — The bytes value defines the payload size (in octets) to be encapsulated in one circuit emulation
service packet. The valid range of supported values is 2 to 1514 bytes. The packetization delay
for the circuit emulation service can be calculated by multiplying the payload size (in octets) by
8 (bits/octet) and then dividing by the SAP TDM bandwidth (in bits per second).
For CESoPSN with CAS, the configured value of the payload size does not need to include the
extra bytes for the transport of CAS bits. Note that the configured value of the service-mtu size
takes the extra CAS bytes into account. See
Structured T1/E1 CES with CAS on page 152
for details.
For CESoPSN, the payload size may be specified as the number of bytes to be included in the
packet.
For SAToP circuit emulation services, the payload size must be specified in multiples of 32 bytes.
The minimum value is 64 bytes for both SAToP T1 and SAToP E1.
Interactions — The jitter-buffer value must be greater than or equal to twice the payload size to
ensure that a frame arrives prior to the start of play-out. Therefore, the payload size may have to
be decreased prior to setting the jitter-buffer value. Alternatively, the jitter-buffer value may have
to be increased prior to setting the payload-size.
report-alarm
Syntax [no] report-alarm [stray] [malformed] [pktloss] [overrun] [underrun] [rpktloss] [rfault]
[rrdi]
Context config>service>cpipe>sap>cem
Description This command enables or disables alarm reporting for CES circuit alarm conditions.
Default On: stray, malformed, pktloss, overrun and underun
Off: rpktloss, rfault, rrdi