Join Chiefs of Staff Admiral Mike Mullen, the nation's highest ranking military officer, said Sunday he has advised President Obama on repeal of the military's ban on open gay service.

“I've had conservations with him about that,” Mullen said on CNN's State of the Union. “What I've discussed in terms of the future is I think we need to move in a measured way.”

The Obama administration is facing increasingly louder demands from gay groups to end the law that candidate Obama promised to repeal. According to the Servicemembers Legal Defense Network, a group that lobbies for repeal of the law, 282 service members have been discharged under Obama's watch.

Mullen also said he has discussed repeal of the ban that dictates discharge for gay and lesbian soldiers who do not remain closeted or celibate with his staff.

“I haven't done any kind of extensive review. And what I feel most obligated about is to make sure I tell the president, you know, my – give the president my best advice, should this law change, on the impact on our people and their families at these very challenging times,” he said.

Last week, Defense Secretary Robert Gates said the Pentagon is looking into ways to apply the law in a “more humane way.” Gates appeared to suggest he disagreed with discharges in cases where service members were maliciously outed.

“If someone is outed by a third party … does that force us to take action?” he asked.