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ABNF for SDP
RFC 4566and many other RFCs

Session Description   v=   o=   s=   i=   u=   e=   p=   c=   b=   t=  r=  z=   k=   a=   m=   SDP Addressing   SDP generic rules   "a=" SDP Attributes
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SDP attributes defined in

RFC 5888 – SDP Grouping Framework

RFC 5888Section 4  —  see also:  IANA
a=mid   a=group

 


attribute-fields  =/

group-attribute =
"a=group:"  semantics  *( SPidentification‑tag )  CRLF
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semantics =
"LS"  /     ; see   RFC 5888
"FID"  /     ; see   RFC 5888
"SRF"  /     ; see   RFC 3524Section 2
"ANAT"  /     ; see   RFC 4091Section 3
"FEC-FR"  /     ; see   RFC 5956Section 4.1
"DDP"  /     ; see   RFC 5583Section 5.2
"DUP"  /     ; see   RFC 7104Section 3.1
"SPLICE"     ; see   RFC 8286Section 8.3
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identification-tag =
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