Administrator Guide

Following is the sample steps to configure the recovery cause and the timer interval for automatic recovery of an interface.
DellEMC# configure termimal
DellEMC(conf)# errdisable recovery cause fefd
DellEMC(conf)# errdisable recovery interval 30
DellEMC(conf)#
Egress Interface Selection (EIS)
EIS allows you to isolate the management and front-end port domains by preventing switch-initiated traffic routing between the two
domains. This feature provides additional security by preventing flooding attacks on front-end ports. The following protocols support EIS:
DNS, FTP, NTP, RADIUS, sFlow, SNMP, SSH, Syslog, TACACS, Telnet, and TFTP. This feature does not support sFlow on stacked units.
When you enable this feature, all management routes (connected, static, and default) are copied to the management EIS routing table.
Use the management route command to add new management routes to the default and EIS routing tables. Use the show ip
management-eis-route command to view the EIS routes.
Important Points to Remember
• Deleting a management route removes the route from both the EIS routing table and the default routing table.
• If the management port is down or route lookup fails in the management EIS routing table, the outgoing interface is selected based on
route lookup from the default routing table.
• If a route in the EIS table conflicts with a front-end port route, the front-end port route has precedence.
• Due to protocol, ARP packets received through the management port create two ARP entries (one for the lookup in the EIS table and
one for the default routing table).
Configuring EIS
EIS is compatible with the following protocols: DNS, FTP, NTP, RADIUS, sFlow, SNMP, SSH, Syslog, TACACS, Telnet, and TFTP.
To enable and configure EIS, use the following commands:
1. Enter EIS mode.
CONFIGURATION mode
management egress-interface-selection
2. Configure which applications uses EIS.
EIS mode
application {all | application-type}
NOTE:
If you configure SNMP as the management application for EIS and you add a default management route,
when you perform an SNMP walk and check the debugging logs for the source and destination IPs, the SNMP agent
uses the destination address of incoming SNMP packets as the source address for outgoing SNMP responses for
security.
Management Interfaces
The system supports the Management Ethernet interface as well as the standard interface on any port. You can use either method to
connect to the system.
Configuring Management Interfaces
The dedicated Management interface provides management access to the system.
You can configure this interface using the CLI, but the configuration options on this interface are limited. You cannot configure Gateway
addresses and IP addresses if it appears in the main routing table of Dell EMC Networking OS. In addition, proxy ARP is not supported on
this interface.
To configure a management interface, use the following commands.
• Enter the slot and the port (1) to configure a Management interface.
Interfaces
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