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OS6624/6648 Architecture
OmniSwitch Troubleshooting Guide September 2005 page -49
3-Protocol Entry
• Used to allow different rules to be applied for different protocols associated with same address. Proto-
col Offset Register is used to identify which protocols will be used in the system. Up to 18 Layer 2
protocols are supported. There is a separate protocol entry for each protocol defined in the Protocol
Offset Register
• Priority level of the packet for queuing
• Filter (6 bits), Mirror (5 bits), Priority (5 bits), TOS (6 bits) indices for flow-based rules. Each address
that is to be used in a flow definition is assigned a unique index for the appropriate rule (i.e. Filter,
Mirror, priority or TOS).
• TOS marking rules
• Global destination/source priority rules (i.e. all packets with this destination address get this priority).
• Global destination/source filter rules (i.e. filter all packets with this source address)
• Global destination/source mirror rule (i.e. mirror all packets with this source address)
• Pointer to NetID
• 4-NetID Entry
• Contains transmit enables, prepend information and address based VLAN information.