Concept Guide

• 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.
Dell(conf-if-vl-10)#do show interface vlan 10
Vlan 10 is up, line protocol is up
Address is 00:1e:c9:f1:03:38, Current address is 00:1e:c9:f1:03:38
Interface index is 1107787786
Internet address is 5.5.5.1/24
Mode of IP Address Assignment : MANUAL
DHCP Client-ID: vlan10001ec9f10338
MTU 1554 bytes, IP MTU 1500 bytes
LineSpeed 1000 Mbit
ARP type: ARPA, ARP Timeout 04:00:00
Last clearing of "show interface" counters 00:01:09
Queueing strategy: fifo
Time since last interface status change: 00:00:46
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.
Dell EMC Networking OS generates syslog message for Err-disabled recovery when:
• The timer is started for recovery of an interface
• The recovery action is complete
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Interfaces