Administrator Guide

Table Of Contents
EIS Behavior: If source TCP or UDP port matches an EIS management or a non-EIS management application and source IP
address is management port IP address, management port is the preferred egress port selected based on route lookup in EIS
table. If the management port is down or the route lookup fails, packets are dropped.
If the source TCP/UDP port or source IP address does not match the management port IP address, a route lookup is done in the
default routing table.
EIS behavior for ICMP: ICMP packets do not have TCP/UDP ports. In this case, to perform an EIS route lookup for
ICMP-based applications (ping and traceroute), you must configure ICMP as a management application. If the management port
is down or the route lookup fails, packets are dropped.
If source IP address does not match the management port IP address route lookup is done in the default routing table.
Default Behavior: Route lookup is done in the default routing table and appropriate egress port is selected.
Table 40. Behavior of Various Applications for Switch-Destined Traffic
Protocol Behavior when EIS is Enabled Behavior when EIS is Disabled
ftp EIS Behavior Default Behavior
http EIS Behavior Default Behavior
ssh EIS Behavior Default Behavior
Snmp (snmp mib response) EIS Behavior Default Behavior
telnet EIS Behavior Default Behavior
icmp (ping and traceroute) EIS Behavior for ICMP Default Behavior
Interworking of EIS With Various Applications
Stacking
The management EIS is enabled on the master and the standby unit.
Because traffic can be initiated from the Master unit only, the preference to management EIS table for switch-initiated
traffic and all its related ARP processing is done in the Master unit only.
ARP-related processing for switch-destined traffic is done by both master and standby units.
VLT
VLT feature is for the front-end port only. Because this feature is specific to the management port, this feature can coexist with
VLT and nothing specific needs to be done in this feature to handle VLT scenario.
DHCP
If DHCP Client is enabled on the management port, a management default route is installed to the switch.
If management EIS is enabled, this default route is added to the management EIS routing table and the default routing table.
ARP learn enable
When ARP learn enable is enabled, the switch learns ARP entries for ARP Request packets even if the packet is not destined
to an IP configured in the box.
The ARP learn enable feature is not applicable to the EIS routing table. It is applicable to the default routing table only to
avoid unnecessary double ARP entries
Sflow
sFlow management application is supported only in standalone boxes and switch shall throw error message if sFlow is configured
in stacking environment
Internet Group Management Protocol (IGMP)
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