Users Guide

Usage
Information
You can configure the interface type as CR4 with auto-negotiation enabled. If a DAC cable link is down,
you can resolve the issue by setting the interface type as CR4.
If the CR4 optic fails to come up, use the autoneg option.
On 100-Gigabit Ethernet interfaces, CR4 auto-negotiation is enabled by default.
Related
Commands
● Interfaces — configure a physical interface.
● interface loopback — configure a loopback interface.
● interface null — configure a null interface.
● interface port-channel — configure a port channel group.
keepalive
Send keepalive packets periodically to keep an interface alive when it is not transmitting data.
Syntax
keepalive
To stop sending keepalive packets, use the no keepalive command.
Defaults Enabled.
Command Modes INTERFACE
Command
History
This guide is platform-specific. For command information about other platforms, see the relevant Dell
Networking OS Command Line Reference Guide.
Version Description
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.2(1.0) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
8.1.1.2 Introduced on the E-Series.
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
pre-Version
6.1.1.0
Introduced on the E-Series.
Usage
Information
When you configure keepalive, the system sends a self-addressed packet out of the configured
interface to verify that the far end of a WAN link is up. When you configure no keepalive, the system
does not send keepalive packets and so the local end of a WAN link remains up even if the remote end is
down.
monitor interface
Monitor counters on a single interface or all interfaces. The screen is refreshed every five seconds and the CLI prompt
disappears.
Syntax
monitor interface [interface]
To disable monitoring and return to the CLI prompt, press the q key.
Interfaces 567