Flowcontrol - Dell S6100 Configuration Manual

Version
9.8(0.0P2)
9.7(0.0)
9.2(1.0)
9.0.2.0
8.3.19.0
8.3.11.1
8.3.7.0
Usage Information
This command is not applicable for 10–Gigabit and 40–Gigabit Ethernet interfaces.
For 100-Gigabit Ethernet interfaces, CR4 auto-negotiation is enabled by default. You cannot enable or disable FEC
separately. To enable or disable FEC, disable CR4 auto-negotiation first. Similarly, CR4 auto-negotiation cannot be
enabled if FEC is already enabled or disabled. To enable CR4 auto-negotiation, set to default FEC value using the
fec default command.
For 25–Gigabit and 50–Gigabit Ethernet interfaces, FEC is disabled by default. You can enable or disable FEC and
CR4 auto-negotiation simultaneously.
Related Commands fec default

flowcontrol

Control how the system responds to and generates 802.3x pause flow control frames.
Syntax flowcontrol {rx {off | on} tx {off | on} [negotiate | pause-threshold value |
resume-offset value] | [monitor session-ID]}
To return to the default, use the no form of this command.
Parameters
rx on
rx off
tx on
tx off
pause-threshold
resume-offset
negotiate
Description
Introduced on the S3048-ON.
Introduced on the S6000-ON.
Introduced on the Z9500.
Introduced on the S6000.
Introduced on the S4820T.
Introduced on the Z9000.
Introduced on the S4810.
— sets the FEC to default
Enter the keywords rx on to process the received flow control frames on this port.
NOTE:
enabled on an interface.
Enter the keywords rx off to ignore the received flow control frames on this port.
Enter the keywords tx on to send control frames from this port to the connected device
when a higher rate of traffic is received.
Enter the keywords tx off so that flow control frames are not sent from this port to
the connected device when a higher rate of traffic is received.
Enter the buffer threshold limit for generating PAUSE frames.
Enter the offset value for generating PAUSE frames to resume traffic.
(Optional) Enter the keyword negotiate to enable the pause-negotiation with the
egress port of the peer device. If the negotiate command is not used, pause-
negotiation is disabled. 40-gigabit Ethernet interfaces do not support pause-negotiation
value.show config — displays the interface configuration.
Flow-control packets are mirrored only when flow-control rx is
Interfaces 671