Enable Pause Frames - Dell Force10 S4810P Configuration Manual

Enable Pause Frames

Note: On the C-Series and S-Series (non-S4810) platforms, Ethernet Pause Frames TX should be
enabled only after consulting with the Dell Force10 Technical Assistance Center.
Note: Changes in the flow-control values may not be reflected automatically in the
As a workaround, apply the new settings, execute
check the running-config of the port.
Note: The S4810 supports only the rx control option. The S4810 does not transmit pause frames.
Note: If rx flow control is disabled, Dell Force10 recommends rebooting the system.
Ethernet Pause Frames flow control must be enabled on all ports on a chassis or a line card. If not, the
system may exhibit unpredictable behavior.
On the C-Series and S-Series systems, the flow control sender and receiver must be on the same port-pipe.
Flow control is not supported across different port-pipes on the C-Series or S-Series system
Command Syntax
[off | on] [off | on] [threshold
flowcontrol rx tx
{<1-2047> <1-2013> <1-2013>}]
shut
followed by
Command Mode Purpose
INTERFACE Control how the system responds to and
generates 802.3x pause frames on 1 and 10Gig
line cards.
Defaults:
C-Series:
E-Series:
S-Series:
S4810:
Parameters:
:
Enter the keywords rx on
rx on
on this port.
:
Enter the keywords rx off
rx off
this port.
:
Enter the keywords tx on
tx on
connected device when a higher rate of traffic is received.
:
Enter the keywords tx off
tx off
this port to the connected device when a higher rate of traffic is received.
threshold (C-Series and S-Series only) : When tx on is configured, the
user can set the threshold values for:
Number of flow-control packet pointers: 1-2047 (default = 75)
Flow-control buffer threshold in KB: 1-2013 (default = 49KB)
Flow-control discard threshold in KB: 1-2013 (default= 75KB)
Pause control is triggered when either the flow control buffer threshold
or flow control packet pointer threshold is reached.
show interface
no shut
on the interface, and then
rx off tx off
rx on tx on
rx off tx off
ff
rx o
to process the received flow control frames
to ignore the received flow control frames on
to send control frames from this port to the
so that flow control frames are not sent from
output.
.
Interfaces | 507