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Ether Type
VLAN TAG – Single VLAN tag – VLAN ID and Priority
IP address (source IP and destination IP)
IP Protocol
MPLS label (for OpenFlow 1.3)
DSCP bits
Layer 4 Port (TCP, UDP)
ICMP code and type
If EtherType is ARP, the specified ARP type (request/reply) or SIP in the ARP
payload can be used to match a packet.
Once a packet arrives, the switch searches the flow table. When a flow entry is hit
in the search, the packet is processed according to the action specified in the flow
entry.
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Chapter 15: OpenFlow