Reference Guide

If OpenFlow VLANs are configured on the switch, spanning-tree protocols cannot be enabled
simultaneously.
Example (Single
Range)
FTOS(conf)#int vlan 3
FTOS(conf-if-vl-3)#
Related
Commands
interface — configures a physical interface.
interface loopback — configures a loopback interface.
interface null — configures a null interface.
interface port-channel — configures a port channel group.
show vlan — displays the current VLAN configuration on the switch.
shutdown — disables/enables the VLAN.
tagged — adds a Layer 2 interface to a VLAN as a tagged interface.
untagged — adds a Layer 2 interface to a VLAN as an untagged interface.
openflow of-instance — creates or modifies an OpenFlow instance.
keepalive
On SONET interfaces, send keepalive packets periodically to keep an interface alive when it is not transmitting data.
S4820T
Syntax
keepalive [seconds]
To stop sending SONET keepalive packets, use the no keepalive command.
Parameters
seconds (OPTIONAL) For SONET interfaces with PPP encapsulation enabled,
enter the number of seconds between keepalive packets. The range
is from 0 to 23767. The default is 10 seconds.
Defaults Enabled.
Command Modes INTERFACE
Command History
This guide is platform-specific. For command information about other platforms, refer to the
relevant FTOS Command Line Reference Guide .
The following is a list of the FTOS version history for this command.
Version 8.3.19.0 Introduced on the S4820T.
Version 8.3.11.1 Introduced on the Z9000.
Version 8.3.7.0 Introduced on the S4810.
Version 8.1.1.2 Introduced on the E-Series ExaScale.
Version 7.6.1.0 Introduced on the S-Series.
Version 7.5.1.0 Introduced on the C-Series.
pre-Version
6.1.1.0
Introduced on the E-Series.
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