Skip to main content
Sign Out

Welcome to Dell

My Account
  • Place orders quickly and easily
  • View orders and track your shipping status
  • Create and access a list of your products
  • Manage your Dell EMC sites, products, and product-level contacts using Company Administration.
Sign In Create an Account Premier Sign In Partner Program Sign In
Contact Us

Dell EMC Configuration Guide for the S4048T–ON System 9.14.2.4

PDF

Enabling Pause Frames

Enable Ethernet pause frames flow control on all ports on a chassis or a line card. If not, the system may exhibit unpredictable behavior.

NOTE Changes in the flow-control values may not be reflected automatically in the show interface output. As a workaround, apply the new settings, execute shut then no shut on the interface, and then check the running-config of the port.
NOTE If you disable rx flow control, Dell EMC Networking recommends rebooting the system.

The flow control sender and receiver must be on the same port-pipe. Flow control is not supported across different port-pipes.

To enable pause frames, use the following command.

Control how the system responds to and generates 802.3x pause frames on the Ethernet ports.
INTERFACE mode
flowcontrol {rx [off | on] tx [off | on] [negotiate] | monitor session-ID}
  • rx on: enter the keywords rx on to process the received flow control frames on this port.
  • rx off: enter the keywords rx off to ignore the received flow control frames on this port.
  • tx on: enter the keywords tx on to send control frames from this port to the connected device when a higher rate of traffic is received.
  • tx off: 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.

  • negotiate: enable 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.

  • monitor session-ID: Enter the keyword monitor then the session–ID to enable mirror flow control frames on the port. The session–ID range is from 1 to 65535.

Rate this content

Accurate
Useful
Easy to understand
Was this article helpful?
0/3000 characters
  Please provide ratings (1-5 stars).
  Please provide ratings (1-5 stars).
  Please provide ratings (1-5 stars).
  Please select whether the article was helpful or not.
  Comments cannot contain these special characters: <>()\