Exfo ETS-1000G Manual do Utilizador Página 182

  • Descarregar
  • Adicionar aos meus manuais
  • Imprimir
Vista de página 181
Ethernet Frame Structure
172 ETS-1000G
Frame Check Sequence — a checksum. A 4-byte field that contains a
checksum.
Tag Protocol Identifier — the “Protocol Identifier tag. 16 bits that
determine whether a frame belongs to 802.1Q standard [9].
Tag Control Information — Information for tag management.
TCI contains three fields.
Priority — User (VLAN) Priority. Three bits which carry information
about a frame's priority (eight frame priority values are supported).
CFI — Canonical Format Indicator. A one-bit flag that is always equal to
zero for Ethernet frames.
VLAN ID — VLAN Identifier (VID). A 12-bit VLAN identifier that is
defined in 802.1Q standard [9]. It uniquely identifies the VLAN a frame
belongs to.
Vista de página 181
1 2 ... 177 178 179 180 181 182 183 184 185 186 187 ... 194 195

Comentários a estes Manuais

Sem comentários