3com 5500-ei pwr Reference Guide

 

4-6 

System View: return to User View with Ctrl+Z. 

[Sysname] system-guard ip enable 

system-guard l3err enable 

System view 

None 

Use the system-guard l3err enable command to enable Layer 3 error control.  

Use the undo system-guard l3err enable command to disable Layer 3 error control. 

By default, this feature is enabled.  

The Layer 3 error control feature determines how the switch disposes of Layer packets which the switch 

considers to be error packets:  

With the Layer 3 error control feature disabled, the switch delivers all Layer 3 packets which the switch 

considers to be error packets (including IP packets with the options field) to the CPU for further 

processing;  

With the Layer 3 error control feature enabled, the switch directly discards all Layer 3 packets which the 

switch considers to be error packets without delivering them to the CPU.  

 

In normal situations, we recommend that you enable this feature. Because the switch cannot forward 

error packets and IP packets with the Options field set, delivering all these packets to the CPU will affect 

the normal work of the CPU.  

 

# Enable Layer 3 error control.  

<Sysname> system-view 

System View: return to User View with Ctrl+Z. 

[Sysname] system-guard l3err enable