Service Manual

If you configure intf-type cr4 autoneg, use the no intf-type cr4 autoneg command to set the
interface type as cr4 with autonegotiation disabled.
Defaults Not configured
Command Modes CONFIGURATION
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the M I/O Aggregator.
8.3.16.1 Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information
If you configure interface type as CR4 with auto-negotiation enabled, also configure CR4 with auto-
negotiation. Many DAC cable link issues are resolved by setting the interface type as CR4.
Related Commands
interface — configures a physical interface.
interface port-channel — configures a port channel group.
keepalive
Send keepalive packets periodically to keep an interface alive when it is not transmitting data.
Syntax
keepalive [seconds]
To stop sending keepalive packets, use the no keepalive command.
Parameters
seconds (OPTIONAL) For 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
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the M I/O Aggregator.
8.3.16.1 Introduced on the MXL 10/40GbE Switch IO Module.
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.
518 Interfaces