Suspend a link

Last updated
August 4, 2017

Contributors
Jeremy Grossmann
Julien Duponchelle
Edit this Article
Last updated
August 4, 2017

Contributors
Jeremy Grossmann
Julien Duponchelle
Edit this Article

Link control

NOTEavailable in GNS3 version 2.1 and laterPacket filters

Packet filters can be applied on links without stopping any node.

Supported packet filters are:

  • Frequency_drop drop a packet every x packets.
  • Packet_loss randomly drop a packet
  • Delayadd latency and/or jitter.
  • Packet_corruption randomly corrupt a packet.
  • BPF_(Berkeley_Packet_Filter) filter packets matching a BPF expression.

All packet filters can be combined, meaning you can apply both a packet loss filter and a delay filter on the same link, there will be active at the same time.

To apply a packet filter, right click on a link a select packet filters

A green circle will appear in the corresponding packet filter tab when a filter is active (non zero values)

A filter icon will be displayed on the link to indicate one or more packet filters are active.

Suspend a link

It is possible to suspend a link, for instance to simulate a temporary connection issue in your project. Suspending a link currently means that all packets going through the link will be dropped.

To suspend a link, right click on it and then click on suspend.

The link is now suspended, no traffic will go through.