diff --git a/src/Renci.SshNet/Channels/ClientChannel.cs b/src/Renci.SshNet/Channels/ClientChannel.cs
index a33c3bc7..844c1866 100644
--- a/src/Renci.SshNet/Channels/ClientChannel.cs
+++ b/src/Renci.SshNet/Channels/ClientChannel.cs
@@ -52,6 +52,9 @@ namespace Renci.SshNet.Channels
/// Send message to open a channel.
///
/// Message to send
+ /// The client is not connected.
+ /// The operation timed out.
+ /// The size of the packet exceeds the maximum size defined by the protocol.
protected void SendMessage(ChannelOpenMessage message)
{
Session.SendMessage(message);