Users Guide

show running-config ecmp-group
• Enable link bundle monitoring on port channel interfaces.
link-bundle-monitor enable
Dell(conf-if-po-10)#link-bundle-monitor enable
• Configure threshold level for link bundle monitoring.
link-bundle-distribution trigger-threshold
Dell(conf)#link-bundle-distribution trigger-threshold
• View the link bundle monitoring status.
show link-bundle-distribution
Using Ethernet Pause Frames for Flow
Control
Ethernet pause frames and threshold settings are supported on the Dell Networking OS.
Ethernet Pause Frames allow for a temporary stop in data transmission. A situation may arise where a sending
device may transmit data faster than a destination device can accept it. The destination sends a PAUSE frame
back to the source, stopping the sender’s transmission for a period of time.
An Ethernet interface starts to send pause frames to a sending device when the transmission rate of ingress
traffic exceeds the egress port speed. The interface stops sending pause frames when the ingress rate falls to
less than or equal to egress port speed.
The globally assigned 48-bit Multicast address 01-80-C2-00-00-01 is used to send and receive pause
frames. To allow full-duplex flow control, stations implementing the pause operation instruct the MAC to
enable reception of frames with destination address equal to this multicast address.
The PAUSE frame is defined by IEEE 802.3x and uses MAC Control frames to carry the PAUSE commands.
Ethernet pause frames are supported on full duplex only.
If a port is over-subscribed, Ethernet Pause Frame flow control does not ensure no-loss behavior.
Restriction: Ethernet Pause Frame flow control is not supported if PFC is enabled on an interface.
Control how the system responds to and generates 802.3x pause frames on Ethernet interfaces. The default
is rx off tx off. INTERFACE mode. flowcontrol rx [off | on] tx [off | on]
Where:
rx on: Processes the received flow control frames on this port.
rx off: Ignores the received flow control frames on this port.
tx on: Sends control frames from this port to the connected device when a higher rate of traffic is received.
tx off: Flow control frames are not sent from this port to the connected device when a higher rate of traffic
is received.
Interfaces 405