transport.ensureConnected();

            // Verify multi-channel capability (SMB3+ required)
            if (!transport.isSMB2() || !transport.hasCapability(0x00000008)) { // SMB2_GLOBAL_CAP_MULTI_CHANNEL
                throw new CIFSException("Server does not support SMB multi-channel capability");
            }

    }

    @Test
    @DisplayName("Test file attributes setter")
    void testSetFileAttributes() {
        request = new Smb2CreateRequest(mockConfig, "test.txt");

        int attributes = 0x00000020; // FILE_ATTRIBUTE_ARCHIVE
        request.setFileAttributes(attributes);

        byte[] buffer = new byte[1024];
        request.writeBytesWireFormat(buffer, 0);

    int flags2 = FLAGS2;
    int maxMpxCount = MAX_MPX_COUNT;
    int snd_buf_size = SND_BUF_SIZE;
    int rcv_buf_size = RCV_BUF_SIZE;
    int capabilities = CAPABILITIES;
    int sessionKey = 0x00000000;
    boolean useUnicode = USE_UNICODE;
    String tconHostName = null;

    SmbTransport(final UniAddress address, final int port, final InetAddress localAddr, final int localPort) {
        this.address = address;

        assertEquals(null, storedFileId);
    }

    @Test
    @DisplayName("setCloseFlags should update close flags")
    void testSetCloseFlags() throws Exception {
        int testFlags = 0x00000001; // SMB2_CLOSE_FLAG_POSTQUERY_ATTRIB
        request.setCloseFlags(testFlags);

        Field closeFlagsField = Smb2CloseRequest.class.getDeclaredField("closeFlags");
        closeFlagsField.setAccessible(true);

        this.value = value;
    }
}
```

### 3.2 Handle Capabilities
```java
public class Smb2HandleCapabilities {
    // Durable handle flags
    public static final int SMB2_DHANDLE_FLAG_PERSISTENT = 0x00000002;
    
    // Timeout values (milliseconds)
    public static final long DEFAULT_DURABLE_TIMEOUT = 120000;  // 2 minutes
    public static final long MAX_DURABLE_TIMEOUT = 300000;      // 5 minutes