According to a Wall Street Journal (WSJ) report, a San Jose, California, jury has said in a Wednesday ruling that Arista Networks Inc. did not violate Cisco System Inc’s copyright and did not violate Cisco's patents.

The ruling by the jury marks a huge win for Santa Clara-based Arista in its wide-ranging legal scuffle with San Jose-based Cisco over copyright infringement. Both the companies are fierce competitors in the networking equipment market, especially for selling ethernet switches to connect computers, servers and other devices.

In the Wednesday ruling, the jurors in federal court in San Jose said that Arista does now owe any damages over Cisco's claims of copyright infringement. The jurors also said that they have not found Arista to have infringed any Cisco patent.

The ruling means that Arista will not have to pay $335 million in damages to Cisco for an alleged copyright infringement of Cisco’s user interfaces.

In response to the San Jose jury’s Wednesday ruling, Cisco said that it respectfully disagrees with the verdict and would ascertain its options for post-trial motions and appeal; while Arista said the ruling marks “an important victory not only for Arista but for the entire industry.”