Disabling A Logical Interface; Configuring Flow Control - Juniper EX2200 Hardware Manual

Disabling a Logical Interface

Configuring Flow Control

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Copyright © 2015, Juniper Networks, Inc.
You can unconfigure a logical interface, effectively disabling that interface, without
removing the logical interface configuration statements from the configuration. To do
this, include the statement:
disable
disable;
You can include this statement at the following hierarchy levels:
[edit interfaces interface-name unit logical-unit-number]
[edit logical-systems logical-system-name interfaces interface-name unit
logical-unit-number]
When an interface is disabled, a route (pointing to the reserved target "
the IP address of the interface and a 32–bit subnet mask is installed in the routing table.
See Routing Protocols.
By default, the router or switch imposes flow control to regulate the amount of traffic
sent out on a Fast Ethernet, Tri-Rate Ethernet copper, Gigabit Ethernet, and 10-Gigabit
Ethernet interface. Flow control is not supported on the 4-port Fast Ethernet PIC. This is
useful if the remote side of the connection is a Fast Ethernet or Gigabit Ethernet switch.
You can disable flow control if you want the router or switch to permit unrestricted traffic.
To disable flow control, include the
no-flow-control;
To explicitly reinstate flow control, include the
flow-control;
You can include these statements at the following hierarchy levels:
[edit interfaces interface-name aggregated-ether-options]
[edit interfaces interface-name ether-options]
[edit interfaces interface-name fastether-options]
[edit interfaces interface-name gigether-options]
NOTE: On the Type 5 FPC, to prioritize control packets in case of ingress
oversubscription, you must ensure that the neighboring peers support MAC
flow control. If the peers do not support MAC flow control, then you must
disable flow control.
flow-control on page 181
statement:
no-flow-control
statement:
flow-control
Chapter 2: Configuration Tasks
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