Edge-Core ES4624-SFP Basic Management Manual page 402

sending/receiving condition of ARP packets.
Defective cable is a common cause of ARP problems and may disable ARP learning.
13.5.3.5.1 Commands for Monitor And Debug
13.5.3.5.1.1 debug arp
Command: debug arp
no debug arp
Function: Enables the ARP debugging function; the "no debug arp" command disables
this debugging function.
Default: ARP debug is disabled by default.
Command mode: Admin Mode
Usage Guide: Display contents for ARP packets received/sent, including type, source
and destination address, etc.
Example: Enabling ARP debugging
Switch#debug arp
ip arp debug is on
Switch#Apr 19 15:59:42 2005 IP ARP: rcvd, type 1, src 192.168.2.100, 000A.EB5B.
780C, dst 192.168.2.1, 0000.0000.0000 flag 0x0.
Apr 19 15:59:42 2005 IP ARP: sent, type 2, src 192.168.2.1, 0003.0F02.310A, dst
192.168.2.100, 000A.EB5B.780C.
13.5.3.5.1.2 show arp
Command: show arp [<ipaddessr>][<vlan-id>][<hw-addr>][type {static|dynamic}]
[count] [vrf word]
Function: Displays the ARP table.
Parameters: < ipaddessr > is a specified IP address; <vlan-id> stands for the entry for
the identifier of specified VLAN; <hw-addr> for entry of specified MAC address; "static"
for static ARP entry; "dynamic" for dynamic ARP entry; "count" displays number of ARP
entries; word is the specified vrf name.
Command mode: Admin Mode
Usage Guide: Displays the content of current ARP table such as IP address, MAC
address, hardware type, interface name, etc.
Example:
Switch#show arp
ARP Unicast Items: 7, Valid: 7, Matched: 7, Verifying: 0, Incomplete: 0, Failed: 0, None: 0
Address Hardware Addr
50.1.1.6 00-0a-eb-51-51-38 Vlan50
50.1.1.9 00-00-00-00-00-09 Vlan50
Interface Port
Ethernet1/11
Ethernet1/1
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Flag
Dynamic
Static