my %ICE = (
    21:31:10 => [ 'Pending=3201', ],
    21:32:14 => [ 'Pending=1000', ],
    21:32:15 => [ 'Gap detect', '233.156.208.41:20041', 'Pending=214044',],
    21:32:24 => [ 'Gap detect', '233.156.208.41:20041', 'Pending=104000',],
    21:32:58 => [ 'Gap detect', '233.156.208.41:20041' 'Pending=96000',],
    21:33:12 => [ 'Pending=528', ]
);

And print comma separated:

21:31:10, Gap detect 233.156.208.41:20041, Pending=
21:31:12, Gap detect 233.156.208.41:20041, Pending=3400