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Loopback Testing

PacketExpert™ 1G Software Ver 9.2.8 | Download Now!
PacketExpert™ 10G Software Ver 9.1.31 | Download Now!
PacketExpert™ 10GX Software Ver 9.1.31 | Download Now!

PacketExpert™ has all ports/2 ports Loopback capability. PacketExpert™ supports Layer-wise Loopback as well as Smart Loopback.

On PacketExpert™ 10GX platform Loopback capability is supported on all 1G ports (1G – Port#1, Port#2, Port#3, Port#4) as well, along with support on two 10G ports (10G- Port#1, Port#2).

Loopback Types

  • Smart Loopback - Analyses incoming traffic, automatically detects and swaps Source and Destination MAC, IP, and UDP addresses before sending back the packet.
  • Layer 1 – Loops back incoming packets as is
  • Ethernet – Swaps Source and Destination MAC addresses before sending back the packet
  • IP – Swaps Source and Destination MAC addresses, IP addresses before sending back the packet.
  • UDP - Swaps Source and Destination MAC addresses, Destination IP addresses, and UDP ports before sending back the packet.



Layer 2 -Ethernet swaps Source and Destination MAC addresses

Loopback helps in easy test setup, especially in end-to-end testing, when the other end is in a remote place. In such cases, one PacketExpert™ can be put in constant Loopback at the remote end, and BERT tests can be started / stopped anytime at the local end.


Loopback Configuration on 10G Ports

Loopback Configuration on 1G Ports

Port-wise Frame Statistics

Detailed statistics per port are provided. In addition to statistics like Frame Count, Frame Rate, Link Utilization (Layer1 line rate in %), Data Rate (Layer 2 data rate in Mbps), etc., statistics are provided based on various categories like Frame Type (Broadcast, Multicast, VLAN), Frame Lengths (64, 65-127, 1024-1518, Oversized, Undersized), Protocol Type (IPv4, IPv6, UDP, TCP, ICMP, IGRP etc.).




Loopback Statistics on 10G Ports


Hardware Interface

Buyer's Guide

Please Note: The 'Pxx' in the Item No. refers to the hardware platform on which the software will be running. Therefore, 'Pxx' can either be PXE (1G) or PXG (10G) or PXN (10GX) depending upon the hardware.

 
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