Setup Guide

To determine the conguration of an interface, use the show config command in INTERFACE mode or the various show interface
commands in EXEC mode.
Conguring Layer 3 (Interface) Mode
To assign an IP address, use the following commands.
• Enable the interface.
INTERFACE mode
no shutdown
• Congure a primary IP address and mask on the interface.
INTERFACE mode
ip address ip-address mask [secondary]
The ip-address must be in dotted-decimal format (A.B.C.D) and the mask must be in slash format (/xx).
Add the keyword secondary if the IP address is the interface’s backup IP address.
Example of the show ip interface Command
You can only congure one primary IP address per interface. You can congure up to 255 secondary IP addresses on a single interface.
To view all interfaces to see with an IP address assigned, use the show ip interfaces brief command in EXEC mode as shown in
View Basic Interface Information.
To view IP information on an interface in Layer 3 mode, use the show ip interface command in EXEC Privilege mode.
DellEMC>show ip interface vlan 58
Vlan 58 is up, line protocol is up
Internet address is 1.1.49.1/24
Broadcast address is 1.1.49.255
Address determined by config file
MTU is 1554 bytes
Inbound access list is not set
Proxy ARP is enabled
Split Horizon is enabled
Poison Reverse is disabled
ICMP redirects are not sent
ICMP unreachables are not sent
IP unicast RPF check is not supported
Automatic recovery of an Err-disabled interface
The Dell EMC Networking OS attempts to recover the interface from the Err-disabled state automatically based on the cause of the error.
You can congure the Dell EMC Networking OS to recover an interface from Err-disabled state automatically, if the interface is changed to
Err-disabled state due to the following:
• BPDU Guard
• FEFD
• MAC learning limit
• ARP inspection
Based on the automatic recovery conguration, when the interface is changed to Err-disabled state, the Dell EMC Networking OS invokes
a timer for the congured time-out interval. Upon expiration of the timer, the interface is moved to operationally up state if the encountered
error is xed. If not, the interface is again moved to Err-disabled state again.
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Interfaces