Displays the IP ARP statistics for one or more VRs, VLANs, or ports.
| vr_name | Specifies a VR or VRF for which to display statistics. |
| vlan_name | Specifies a VLAN (Virtual LAN) for which to display statistics. |
| vlan_list | Specifies a VLAN list of IDs to display statistics. |
| refresh | Continuous refresh of output. |
| port_list | Specifies a list of ports for which to display statistics. |
Shows all VLAN ARP statistics in a dynamic display.
VLAN statistics and totals are displayed for a single VR. When you display IPARP statistics for one or all VLANS, the display includes the specified VLANS for the specified VR. If you do not specify a VR for a VLAN report, the display includes the specified VLANS for the current VR context.
Counters displayed under Pending, Failed, ARP Unneeded are per VR and show iparp stats includes VR-Management as well which typically skews the ARP statistics considerably. The Total entries counter reflects the total number of entries that are currently allocated and not freed. Hence they also include Failed entries as well as ARP unneeded entries. Dynamic Entries counter indicates the reachable entries.
Periodically as part of cleanup, failed entries will go down and hence the total entries goes down. In certain scenarios they may help detect a problem (e.g., memory leak or an attack). Since the counters together accurately convey the state of the system, we choose to display these entries. The show iparp stats command shows totals across all VRs* including VR-Mgmt.
The following example displays ARP table statistics for all VRs and VRFs:
Switch.1 # show iparp stats vr all IP ARP VR Statistics Wed Apr 07 15:30:49 2010 ARP Total Dynamic Static Pending Unneeded Failed (Rejected) ============================================================================== VR-Default 96 89 5 0 0 2 0 VR-Mgmt 4 2 2 0 0 0 0 VR-SV_PPPOE 287 286 1 0 0 0 2785 VR-NV_PPPOE 19 19 0 0 0 0 0 chicago2 50 44 5 0 1 0 0 Total for all VRs 456 440 13 0 1 2 2785 ============================================================================== U->page up D->page down ESC->exit
The following example displays ARP table statistics for all VLANs in the current VR context:
Switch.2 # show iparp stats vlan all IP ARP VLAN Statistics Wed Apr 07 15:30:49 2010 VLAN ARP Total Dynamic Static =============================================================================== VLAN_06-AAR 94 89 5 VLAN_07-AAR 122 121 1 VLAN_02-BOT 43 42 1 =============================================================================== Totals for VR U3c-South. Total Entries : 455 Dynamic : 440 Static : 13 Pending : 0 Failed : 2 Unneeded : 0 (Rejected): 5639 Last Rejected ARP : IP: 10.66.118.243 Port: 1:23 Vlan: VLAN_02-BOT =============================================================================== U->page up D->page down ESC->exit
The following example displays ARP table statistics for ports 1:1 to 1:17:
Switch.3 # show iparp stats ports 1:1-1:17 IP ARP Port Statistics Wed Apr 07 15:30:49 2010 Port Link State ARP Total Dynamic Static =============================================================================== 1:1 A 94 89 5 1:2 A 37 37 0 1:3 A 122 121 1 1:4 R 0 0 0 1:5 R 0 0 0 1:6 A 43 43 0 1:7 A 118 118 0 1:8 R 0 0 0 1:9 R 0 0 0 1:10 A 8 8 0 1:11 A 8 6 2 1:12 A 41 41 0 1:13 A 17 17 0 1:14 R 0 0 0 1:15 R 0 0 0 1:16 A 8 8 0 1:17 A 8 6 2 =============================================================================== Link State: A-Active, R-Ready, NP-Port Not Present, L-Loopback U->page up D->page down ESC->exit
This command was first available in ExtremeXOS 12.4.2.
The no-refresh keyword was removed in ExtremeXOS 16.1.
The vlan_list variable was added in ExtremeXOS 16.1.
The refresh keyword was added in ExtremeXOS 16.1.
This command is available on the Summit X450-G2, X460-G2, X670-G2, X770, and ExtremeSwitching X440-G2, X620, X690, X870 series switches.
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