Users Guide

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 congure 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.
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 trac can be initiated from the Master unit only, the preference to management EIS table for switch-initiated trac and
all its related ARP processing is done in the Master unit only.
• ARP-related processing for switch-destined trac is done by both master and standby units.
VLT
VLT feature is for the front-end port only. Because this feature is specic to the management port, this feature can coexist with VLT
and nothing specic 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 congured 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
Sow
Internet Group Management Protocol (IGMP)
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