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Why would my SNMP graphing tool display a spike in the interface counters?

April 26, 2017Counters display graphing interface SNMP spike Tool

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Why would my SNMP graphing tool display a spike in the interface counters?

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A. Force10 implements VLAN counters as dynamically cumulative. Other vendors implement counters as incremental. Thus, if an interface is removed from a VLAN or if counters are cleared on a member interface, the output of the show interface vlan vlan-number command will display a lower number of packets. Rebooting a line card resets the packet counter to 0.