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Appendixes
Appendix A Application restrictions
Matching restrictions
VLAN matching
Table 1 describes the VLAN matching restrictions when an OpenFlow instance is associated with
VLANs.
Table 1 VLAN matching
VLAN Mask Matching packets
- -
All packets in the VLANs that are associated the
OpenFlow instance.
0 -
Packets without a VLAN tag. The PVID of the ingress
port must be associated the OpenFlow instance.
0 Value Unsupported.
Valid VLAN -/Value Unsupported.
0x1000 -/Value(except non-0x1000) Unsupported.
0x1000 0x1000
Packets with a VLAN tag. The VLAN ID of the VLAN
tag must be associated with the OpenFlow instance.
Valid VLAN |
0x1000
-/Value
Matching packets by the combination of the VLAN ID
and VLAN mask. The VLANs obtained through the
combination of the VLAN ID and VLAN mask must be
associated with the OpenFlow instance.
Other Other Unsupported.
Protocol packet matching
If protocols are enabled, protocol packets (except LLDP frames) are processed by the corresponding
protocols instead of the OpenFlow protocol.
For more information about LLDP frame matching, see "LLDP frame matching."
Metadata matching
Metadata is used to pass matching information between flow tables. The controller deploys
metadata matching entries only to non-first flow tables. If the controller deploys a metadata matching
entry to the first flow table, the switch returns an unsupported flow error.
Instruction restrictions
Table 2 Instruction restrictions
Instruction type Restrictions
Clear-Actions
The Clear-Actions instruction has the following restrictions:
• For the single flow table, the flow entries of the table cannot include
this instruction and other instructions at the same time.
• For multiple flow tables of the pipeline, the device does not support
including this instruction and other instructions at the same time.
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