| pgm.data.sqn | Data Packet Sequence Number | Unsigned 32-bit integer |
| pgm.data.trail | Trailing Edge Sequence Number | Unsigned 32-bit integer |
| pgm.genopts.len | Length | Unsigned 8-bit integer |
| pgm.genopts.opx | Option Extensibility Bits | Unsigned 8-bit integer |
| pgm.genopts.type | Type | Unsigned 8-bit integer |
| pgm.hdr.cksum | Checksum | Unsigned 8-bit integer |
| pgm.hdr.dport | Destination Port | Unsigned 16-bit integer |
| pgm.hdr.gsi | Global Source Identifier | Byte array |
| pgm.hdr.opts | Options | Unsigned 8-bit integer |
| pgm.hdr.opts.netsig | Network Significant Options | Boolean |
| pgm.hdr.opts.opt | Options | Boolean |
| pgm.hdr.opts.parity | Parity | Boolean |
| pgm.hdr.opts.varlen | Variable lenght Parity Packet Option | Boolean |
| pgm.hdr.sport | Source Port | Unsigned 16-bit integer |
| pgm.hdr.tsdulen | Transport Service Data Unit | Unsigned 8-bit integer |
| pgm.hdr.type | Type | Unsigned 8-bit integer |
| pgm.nak.grp | Multicast Group NLA | Unsigned 32-bit integer |
| pgm.nak.grpafi | Multicast group AFI | Unsigned 16-bit integer |
| pgm.nak.grpres | Reserved | Unsigned 16-bit integer |
| pgm.nak.sqn | Requested Sequence Number | Unsigned 32-bit integer |
| pgm.nak.src | Source NLA | Unsigned 32-bit integer |
| pgm.nak.srcafi | Source Network Layer Address (Family Indicator) | Unsigned 16-bit integer |
| pgm.nak.srcres | Reserved | Unsigned 16-bit integer |
| pgm.opt.nak.type | Type | Unsigned 8-bit integer |
| pgm.opts.join.min_join | Minimum Sequence Number | Unsigned 32-bit integer |
| pgm.opts.join.opx | Option Extensibility Bits | Unsigned 8-bit integer |
| pgm.opts.join.res | Length | Unsigned 8-bit integer |
| pgm.opts.join.type | Type | Unsigned 8-bit integer |
| pgm.opts.len | Length | Unsigned 8-bit integer |
| pgm.opts.nak.len | Length | Unsigned 8-bit integer |
| pgm.opts.nak.list | List | Byte array |
| pgm.opts.nak.op | Reserved | Unsigned 8-bit integer |
| pgm.opts.nak.opx | Option Extensibility Bits | Unsigned 8-bit integer |
| pgm.opts.parity_prm.op | Pro-Active Parity | Unsigned 8-bit integer |
| pgm.opts.parity_prm.opx | Option Extensibility Bits | Unsigned 8-bit integer |
| pgm.opts.parity_prm.prm_grp | Transmission Group Size | Unsigned 32-bit integer |
| pgm.opts.tlen | Total Length | Unsigned 16-bit integer |
| pgm.opts.type | Type | Unsigned 8-bit integer |
| pgm.parity_grp.len | Length | Unsigned 8-bit integer |
| pgm.parity_grp.type | Type | Unsigned 8-bit integer |
| pgm.parity_prm.len | Length | Unsigned 8-bit integer |
| pgm.parity_prm.type | Type | Unsigned 8-bit integer |
| pgm.spm.lead | Leading Edge Sequence Number | Unsigned 32-bit integer |
| pgm.spm.path | Path NLA | Unsigned 32-bit integer |
| pgm.spm.pathafi | NLA AFI (IPv4 is set to 1) | Unsigned 16-bit integer |
| pgm.spm.res | Reserved | Unsigned 16-bit integer |
| pgm.spm.sqn | Sequence number | Unsigned 32-bit integer |
| pgm.spm.trail | Trailing Edge Sequence Number | Unsigned 32-bit integer |