Sequence with Optional presence and PMAP question

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1

Imported from previous forum

2

Hello,

I have two questions regarding the following:

<sequence name="SecurityAlt" presence="optional">
  <length name="NoSecurityAltID" id="454">
    <constant value="1"/>
  </length>
  <uInt64 name="SecurityAltID" id="455">
    <delta/>
  </uInt64>
  <string name="SecurityAltIDSource" id="456">
    <constant value="M"/>
  </string>
</sequence>

  1. Is the “optional” presence applied to all the members within the sequence? Ie. NoSecurityAltID, SecurityAltID, and SecurityAltIDSource all have presence of “optional”. Thus PMAP presence is now required for NoSecurityAltID and SecurityAltIDSource?

  2. Does the constant sequence length have a PMAP bit presence because it is now considered a constant with optional presence?

3

Hello,

I have two questions regarding the following:

<sequence name="SecurityAlt" presence="optional">
  <length name="NoSecurityAltID" id="454">
    <constant value="1"/>
  </length>
  <uInt64 name="SecurityAltID" id="455">
    <delta/>
  </uInt64>
  <string name="SecurityAltIDSource" id="456">
    <constant value="M"/>
  </string>
</sequence>
  1. Is the “optional” presence applied to all the members within the sequence? Ie. NoSecurityAltID, SecurityAltID, and SecurityAltIDSource all have presence of “optional”. Thus PMAP presence is now required for NoSecurityAltID and SecurityAltIDSource?

PMAP presence is now required for the entire sequence.

  1. Does the constant sequence length have a PMAP bit presence because it is now considered a constant with optional presence?

length field itself is not optional, and doesn’t need a PMAP bit.