Administrator Guide

Version Description
8.1.1.2 Introduced on the E-Series ExaScale.
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.
intf-type cr4 autoneg
Set the interface type as CR4 with auto-negotiation enabled.
Z9000
Syntax
intf-type cr4 autoneg
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
9.7(0.0) Introduced on the S6000-ON.
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.
8.3.16.1 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
● Interfaces — configures a physical interface.
● interface loopback — configures a loopback interface.
● interface null — configures a null interface.
● interface port-channel — configures a port channel group.
negotiation auto
Enable auto-negotiation on an interface.
Z9000
Syntax
negotiation auto
To disable auto-negotiation, use the no negotiation auto command.
Interfaces 515