3.1.2 Flow detection conditions
To perform flow detection, specify the conditions for identifying the flow in the configuration. The following describes the flow detection conditions for the receiving-side interface.
- <Structure of this section>
(1) Flow detection condition of the receiving interface
The following table describes the flow detection conditions that can be specified for a receiving interface.
|
Type |
Configuration items |
|
|---|---|---|
|
MAC conditions |
Configuration |
VLAN ID #1 |
|
MAC header |
Source MAC address |
|
|
Destination MAC address |
||
|
Ethernet type |
||
|
User priority #2 |
||
|
IPv4 conditions |
Configuration |
VLAN ID #1 |
|
MAC header |
User priority #2 |
|
|
IPv4 header #3 |
Upper-layer protocol |
|
|
Source IP address |
||
|
Destination IP address |
||
|
ToS |
||
|
DSCP |
||
|
Precedence |
||
|
IPv4-TCP header |
Source port number |
|
|
Destination port number |
||
|
TCP control flag #4 |
||
|
IPv4-UDP header |
Source port number |
|
|
Destination port number |
||
|
IPv4-ICMP header |
ICMP type value |
|
|
ICMP code value |
||
|
IPv6 conditions |
Configuration |
VLAN ID #1 |
|
MAC header |
User priority*2 |
|
|
IPv6 header #5 |
Upper-layer protocol |
|
|
Source IP address |
||
|
Destination IP address |
||
|
Traffic class |
||
|
DSCP |
||
|
IPv6-TCP header |
Source port number |
|
|
Destination port number |
||
|
TCP control flag #4 |
||
|
IPv6-UDP header |
Source port number |
|
|
Destination port number |
||
|
IPv6-ICMP header |
ICMP type value |
|
|
ICMP code value |
||
- #1
-
VLAN IDs that can be detected by flow detection on the Switch are the values assigned to the VLANs entered in the VLAN configuration. The ID of the VLAN to which received frames belong will be detected.
- #2
-
The user priority cannot be detected for the following frames,
- Frames that do not have a VLAN tag
The user priority for a frame that has multiple VLAN tags is detected by counting from the MAC address side.The first VLAN tag encountered will be detected. The following figure shows an example of a frame that has multiple VLAN tags.
![[Figure Data]](./GRAPHICS/ZU202090.GIF)
- #3
-
Supplementary note for the ToS field specification
These are 3-bit to 6-bit numbers in ToS :ToS field.
Priority: Value of the three highest-order bits in the ToS field.
![[Figure Data]](./GRAPHICS/ZU202021.GIF)
DSCP: Value of the six highest-order bits in the ToS field.
![[Figure Data]](./GRAPHICS/ZU202022.GIF)
- #4
-
Packets whose ack, fin, psh, rst, syn, or urg flag is set to 1 are detected.
- #5
-
Supplementary note for the traffic class field specification
Traffic class: The value of the traffic class field.
![[Figure Data]](./GRAPHICS/ZU201023.GIF)
DSCP: Value of the six highest-order bits in the traffic class field.
![[Figure Data]](./GRAPHICS/ZU201024.GIF)