Dell S3100 Command Line Reference Guide for the Series 9.82.0 - Page 852
Introduced on the S4810, S4820T, S6000, and Z9000, Defaults, Command Modes, Command History
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• For a port channel interface, enter the keywords portchannel then a number. • For a VLAN interface, enter the keyword vlan then a number from 1 to 4094. Defaults Not configured. Command Modes CONFIGURATION Command History This guide is platform-specific. For command information about other platforms, see the relevant Dell Networking OS Command Line Reference Guide. Version 9.10(0.0) 9.8(2.0) 9.8(0.0P5) 9.8(0.0P2) 9.7(0.0) 9.3(0.0) Description Introduced on the S6100-ON. Introduced on the S3100 series. Introduced on the S4048-ON. Introduced on the S3048-ON. Introduced on the S6000-ON. Introduced on the S4810, S4820T, S6000, and Z9000 platforms. Usage Information You can enable the mechanism to configure the source or the originating interface from which the packet (the device that generates the ICMP error messages) is received by the switch to send the loopback address instead of its source IP address to be used in the ICMP unreachable messages and in the traceroute command output. The loopback address must be unique in a particular domain. In network environments that contain a large number of devices, ranging up to thousands of systems, and with each device configured for equal-cost multipath (ECMP) links, you cannot effectively and optimally use the traceroute and ping applications to examine the network reachablity and identify any broken links for diagnostic purposes. In such cases, if the reply that is obtained from each hop on the network path contains the IP address of the adjacent, neighboring interface from which the packet is received, it is difficult to employ the ping and traceroute utilites. You can enable the ICMP unreachable messages to contain the loopback address of the source device instead of the previous hop's IP address to be able to easily and quickly identify the device and devices along the path because the DNS server maps the loopback IP address to the hostname and does not translate the IP address of every interface of the switch to the hostname. Example Dell(conf)# ip icmp source-interface gigabitethernet 1/1 Dell(conf)# 852 IPv4 Routing
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1,877
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