我正在使用Net：：SSH：：Perl连接到Qlogic开关。当它失败时，出现以下错误：
/usr/share/perl 5/vendor_perl/Net/SSH/Perl/SSH2.pm第92行无kex算法
代码：

use Net::SSH::Perl;
$ssh = Net::SSH::Perl->new("$switch_name", protocol=>'2,1',debug=>1);
$ssh->login("USER","$pw");
($stdout,$stderr,$exit) = $ssh->cmd("$cmd");

调试输出：

myserver: Reading configuration data /export/home/ibmi1984/.ssh/config
myserver: Reading configuration data /etc/ssh_config
myserver: Connecting to HFDB12PF26A, port 22.
myserver: Remote protocol version 2.0, remote software version OpenSSH_6.7
myserver: Net::SSH::Perl Version 1.34, protocol version 2.0.
.yserver: No compat match: OpenSSH_6.7
myserver: Connection established.
myserver: Sent key-exchange init (KEXINIT), wait response.
No kex algorithm at /usr/share/perl5/vendor_perl/Net/SSH/Perl/SSH2.pm line 92

有没有人能帮我解决这个问题。同样的代码在其他设备上也可以工作，只是这个设备有问题。