3com S7906E Guide De Référence

 

3-7 

Table 3-2 display arp detection command output description 

ARP detection is enabled in the following VLANs

VLANs that are enabled with ARP detection 

 

display arp detection statistics [ interface interface-type interface-number ] 

Any view 

1: Monitor level 

interface interface-type interface-number: Displays the ARP detection statistics of a specified interface. 

Use the display arp detection statistics command to display statistics about ARP detection. This 

command only displays numbers of discarded packets. If no interface is specified, the statistics of all the 

interfaces will be displayed. 

# Display the ARP detection statistics of GigabitEthernet2/0/1. 

<Sysname> display arp detection statistics interface gigabitethernet2/0/1 

State: U-Untrusted  T-Trusted 

ARP packets dropped by ARP inspect checking: 

Interface(State)          IP         Src-MAC    Dst-MAC    Inspect     

GE2/0/1(U)                40         0          0          78         

Table 3-3 display arp detection statistics command output description 

Interface(State) 

State T or U identifies a trusted or untrusted port. 

IP 

Number of ARP packets discarded due to invalid source and destination IP 
addresses 

Src-MAC 

Number of ARP packets discarded due to invalid source MAC address 

Dst-MAC 

Number of ARP packets discarded due to invalid destination MAC address 

Inspect 

Number of ARP packets that failed to pass ARP detection (based on DHCP 
snooping entries/802.1x security entries/static IP-to-MAC bindings)