Dell PowerSwitch S4820T Configuration Guide for the S4820T System 9.100.0 - Page 355
Behavior of Various Applications for Switch-Destined Traffic
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Protocol radius Sflow-collector Snmp (SNMP Mib response and SNMP Traps) ssh syslog tacacs telnet tftp icmp (ping and traceroute) Behavior when EIS is Enabled EIS Behavior EIS Behavior EIS Behavior EIS Behavior EIS Behavior EIS Behavior EIS Behavior EIS Behavior for ICMP Behavior when EIS is Disabled Default Behavior Default Behavior Default Behavior Default Behavior Default Behavior Default Behavior Default Behavior Default Behavior Default Behavior Behavior of Various Applications for Switch-Destined Traffic This section describes the different system behaviors that occur when traffic is terminated on the switch. Traffic has not originated from the switch and is not transiting the switch. Switch-destined traffic is applicable only for applications which act as server for the TCP session and also for ICMP-based applications like ping and traceroute. FTP, SSH, and Telnet are the applications that can function as servers for the TCP session. 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 37. Behavior of Various Applications for Switch-Destined Traffic Protocol Behavior when EIS is Enabled ftp EIS Behavior http EIS Behavior ssh EIS Behavior Snmp (snmp mib response) EIS Behavior telnet EIS Behavior Behavior when EIS is Disabled Default Behavior Default Behavior Default Behavior Default Behavior Default Behavior Internet Group Management Protocol (IGMP) 355
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