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which the Frame is to be transferred.
NOTE – The GVCID parameter is the SAP address of the VCF Service.
18.104.22.168 Frame Loss Flag The Frame Loss Flag is an optional parameter that may be used to notify the user at the
receiving end of the VCF Service that a sequence discontinuity has been detected, and that
one or more Transfer Frames of the specified Virtual Channel have been lost. If
implemented, the flag shall be derived by examining the Virtual Channel Frame Count in the
3.7.3 VCF SERVICE PRIMITIVES
22.214.171.124 General The service primitives associated with the VCF Service are:
126.96.36.199 VCF.request 188.8.131.52.1 Function At the sending end, the VCF Service user shall pass a VCF.request primitive to the service
provider to request that a Frame be transferred to the user at the receiving end through the
specified Virtual Channel.
NOTE – The VCF.request primitive is the service request primitive for the VCF Service.
184.108.40.206.2 Semantics The VCF.request primitive shall provide parameters as follows:
VCF.request CCSDS 132.0-B-1 (Frame,
GVCID) Page 3-16 September 2003 CCSDS RECOMMENDATION FOR TM SPACE DATA LINK PROTOCOL 220.127.116.11.3 When Generated The VCF.request primitive shall be passed to the service provider to request it to send the
18.104.22.168.4 Effect On Receipt Receipt of the VCF.request primitive shall cause the service provider to transfer the Frame.
22.214.171.124.5 Additional Comments
The VCF.request primitive is used to transfer Transfer Frames of a Virtual Channel across
the space link.
126.96.36.199 VCF.indication 188.8.131.52.1 Function At the sending end, the service provider shall pass a VCF.indication to the VCF Service user
at the receiving end to deliver a Frame.
NOTE – The VCF.indication primitive is the service indication primitive for the VCF
184.108.40.206.2 Semantics The VCF.indication primitive shall provide parameters as follows:
VCF.indication 220.127.116.11.3 (Frame,
Frame Loss Flag (optional)) When Generated The VCF.indication primitive shall...
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This document was uploaded on 03/06/2014.
- Spring '14