White Papers

Version Description
9.8(2.0) Introduced on the S3100 series.
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.4.(0.0) Added support for VRF and added usage information for the clear arp-cache
command.
9.2(1.0) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.5.1.0 Added support for 4-port 40G line cards on the E-Series.
8.3.7.0 Introduced on the S4810.
8.2.1.0 Added support for 4094 VLANs on the E-Series (the prior limit was 2094).
8.1.1.0 Introduced on the E-Series.
7.9.1.0 Introduced VRF on the E-Series.
7.8.1.0 Augmented to display local ARP entries learned from private VLANs (PVLANs).
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
pre-6.1.1.0 Introduced on the E-Series.
Usage
Information
The following example shows two VLANs that are associated with a private VLAN (PVLAN) (refer to
Private VLAN (PVLAN)).
If you have entered the clear arp-cache command to remove a large number of ARP entries and the
command is still being processed in the background, an error message display if you attempt to enter the
show arp command:
Clear arp in-progress. Please try after sometime!
The following describes the show arp command shown in the following example.
Description
Protocol Displays the protocol type.
Address Displays the IP address of the ARP entry.
Age(min) Displays the age (in minutes) of the ARP entry.
Hardware
Address
Displays the MAC address associated with the ARP entry.
Interface Displays the first two letters of the interfaces type and the slot/port associated
with the ARP entry.
VLAN Displays the VLAN ID, if any, associated with the ARP entry.
CPU Lists which CPU the entries are stored on.
Example
DellEMC> show arp
Protocol Address Age(min) Hardware Address Interface VLAN CPU
-------------------------------------------------------------
Internet 192.2.1.254 1 00:00:c0:02:01:02 Te 1/1/1/1 - CP
Internet 192.2.1.253 1 00:00:c0:02:01:02 Te 1/1/1/2 - CP
Internet 192.2.1.252 1 00:00:c0:02:01:02 Te 1/1/1/3 - CP
766 IPv4 Routing