Addendum

The management port will be egress port for management applications as defined in this feature. If
the management port is down or the destination is not reachable through the management port
(Next hop ARP is not resolved etc.) and if the destination is reachable through data port, then the
management application traffic is sent out through the front end data port. This is a fallback
mechanism that is required.
2. Non Management Applications (Applications that are not configured as management applications as
defined by this feature):
Non-management application traffic will exit out of either front end data port or management port
based on routing table. If there is a default route on both the management and front end data port,
the default for the data port will be preferred route.
Behavior of Various Applications for Switch-Initiated
Traffic
This section describes the different system behaviors that occur when traffic is originating from the
switch:
EIS Behavior : If destination TCP/UDP port matches a configured management application route lookup
is done in EIS table and management port gets selected as the egress port. If Management port is down
or route lookup fails packets are dropped.
EIS Behavior for ICMP : ICMP packets does not have TCP/UDP ports. To do EIS route lookup for ICMP
based applications (ping and traceroute), using the source ip option, Management Port IP address should
be specified as the source IP address. If Management port is down or route lookup fails packets are
dropped.
Default Behavior : Route lookup is done in the default routing table and appropriate egress port is
selected.
Protocol Behavior when EIS is Enabled Behavior when EIS is Disabled
dns EIS Behavior Default Behavior
ftp EIS Behavior Default Behavior
ntp EIS Behavior Default Behavior
radius EIS Behavior Default Behavior
Sflow-collector Default Behavior
Snmp (SNMP Mib response and
SNMP Traps)
EIS Behavior Default Behavior
ssh EIS Behavior Default Behavior
syslog EIS Behavior Default Behavior
tacacs EIS Behavior Default Behavior
telnet EIS Behavior Default Behavior
tftp EIS Behavior Default Behavior
icmp (ping and traceroute) EIS Behavior for ICMP Default Behavior
Egress Interface Selection (EIS) for HTTP and IGMP Applications
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