Irish Ferries offers voluntary redundancy packages to its 543 seafaring workers.
More than 100,000 workers and students marched in Dublin and eight other cities to support the employees of Irish Ferries.
These officers refused to operate the vessel at lower manning levels which had been proposed by Irish Ferries.
Irish Ferries threatened to sell or charter Jonathan Swift if the issue was not resolved.
Irish Ferries must honour its agreements with workers and trade unions in the company.
Their only alternative is to remain working with Irish Ferries and earn approximately 50% of their current salary.
The approach adopted by Irish Ferries has been positively Victorian.
The service is operated by Irish Ferries.
In February 2004 the ship was out-of-traffic for four days due to a conflict between Irish Ferries and their employees onboard.
There is also a seasonal route to Roscoff operated by Irish Ferries.