flow-control
To enable the sending of flow-control pause frames, use the
flow-control
command in interface configuration
mode. To disable flow control, use the
no
form of this command.
flow-control
{
bidirectional| egress| ingress
}
no flow-control ingress
{
bidirectional| egress| ingress
}
Syntax Description
Enables flow-control for egress and ingress direction.
bidirectional
Pauses egress traffic if IEEE 802.3x PAUSE frames are received.
egress
Sends IEEE 802.3x PAUSE frames in case of congestion with ingress traffic.
ingress
Command Default
If autonegotiate is enabled on the interface, then the default is negotiated.
If autonegotiate is disabled on the interface, then the sending of flow-control pause frames is disabled for both
egress and ingress traffic.
Command Modes
Interface configuration
Command History
Modification
Release
This command was first introduced.
Release 3.7.2
This command was supported on 1 Gigabit Ethernet optical and
copper SFPs.
Release 4.2.3
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task
IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator
for assistance.
When you explicitly enable the sending of flow-control pause frames, the value you configured with the
flow-control
command overrides any autonegotiated value. This prevents a link from coming up if the
value you set with the
flow-control
command conflicts with the allowable settings on the other end of
the connection.
Note
Cisco ASR 9000 Series Aggregation Services Router Interface and Hardware Component Command Reference,
Release 5.3.x
83
Ethernet Interface Commands on the Cisco ASR 9000 Series Router
flow-control