Lanforge Ice Impairments

LANforge Ice Network Packet Impairments

Simulates WAN or LAN latencies

Features and Packet Impairments	Description
Bi-Directional	Simulates different connection types on each side of a WAN connection, T1, DSL, Cable, Wireless or Satellite.
Pass Through	Adds impairments as packets are received in one Ethernet interface and transmitted out the other interface.
802.1Q VLAN	Able to bridge 802.1Q VLAN Interfaces.
Router	Allows LANforge Ice to act like a router.
Buffer	Emulates the smoothing buffer found on equipment used in Wide-Area-Networks. The buffers are implemented to smooth bursty traffic so that packets are not needlessly dropped.
Delay/Latency	The time it takes in mili-seconds for a packet of data to get from one designated point to another.
Jitter	Simulates the variation in the time between packets arriving, caused by network congestion, timing drift, or route changes.
Drop	Simulates the disappearance of a packet that was transmitted or ought to have been transmitted. Packets can also be dropped in a burst or specifically every xth packet.
Duplicate	Simulates duplication occurs when one packet becomes two (or more) identical packets. Can also specify every xth packet.
Re-Order	Packets are moved out of order from their original sequence. This packet delay has an earlier packet being delayed greater than a subsequent packet. The subsequent packet will arrive before the earlier packet.
Bit Error	Inserts random or periodic errors in either the payload only or the complete packet. Supports packet corruptions, including bit-flips, bit-transposes and byte overwrites. Able to specify multiple corruptions.
Checksum	Recalculates the IP, UDP, and TCP checksum for a packet after applying the corruption. This will allow the corrupted packet to be accepted by the stacks on the receiving machine as if the data were actually valid.