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sys.dm_db_mirroring_connections

Updated: 5 December 2005

Returns a row for each connection established for database mirroring.

Column name Data type Description

connection_id

uniqueidentifier

Identifier of the connection.

transport_stream_id

uniqueidentifier

Identifier of the SQL Native Interface (SNI) connection used by this connection for TCP/IP communications.

state

smallint

Current state of the connection. Possible values:

1 = NEW

2 = CONNECTING

3 = CONNECTED

4 = LOGGED_IN

5 = CLOSED

state_desc

nvarchar(60)

Current state of the connection. Possible values:

NEW

CONNECTING

CONNECTED

LOGGED_IN

CLOSED

connect_time

datetime

Date and time at which the connection was opened.

login_time

datetime

Date and time at which login for the connection succeeded.

authentication_method

nvarchar(128)

Name of the Windows Authentication method, such as NTLM or KERBEROS. The value comes from Windows.

principal_name

nvarchar(128)

Name of the login that was validated for connection permissions. For Windows Authentication, this value is the remote user name. For certificate authentication, this value is the certificate owner.

remote_user_name

nvarchar(128)

Name of the peer user from the other database that is used by Windows Authentication.

last_activity_time

datetime

Date and time at which the connection was last used to send or receive information.

is_accept

bit

Indicates whether the connection originated on the remote side.

1 = The connection is a request accepted from the remote instance.

0 = The connection was started by the local instance.

login_state

smallint

State of the login process for this connection. Possible values:

0 = Initial

1 = Negotiate

2 = SSPI

3 = PublicKeyLogin

4 = PublicKeyTentative

5 = LoggedIn

6 = Arbitration

login_state_desc

nvarchar(60)

Current state of login from the remote computer. Possible values:

Initial

Negotiate

SSPI

PublicKeyLogin

PublicKeyTentative

Arbitration

LoggedIn

peer_certificate_id

int

The local object ID of the certificate used by the remote instance for authentication. The owner of this certificate must have CONNECT permissions to the database mirroring endpoint.

receives_posted

smallint

Number of asynchronous network receives that have not yet completed for this connection.

is_receive_flow_controlled

bit

Whether network receives have been postponed due to flow control because the network is busy.

1 = True

sends_posted

smallint

The number of asynchronous network sends that have not yet completed for this connection.

is_send_flow_controlled

bit

Whether network sends have been postponed due to network flow control because the network is busy.

1 = True

total_bytes_sent

bigint

Total number of bytes sent by this connection.

total_bytes_received

bigint

Total number of bytes received by this connection.

total_fragments_sent

bigint

Total number of database mirroring message fragments sent by this connection.

total_fragments_received

bigint

Total number of database mirroring message fragments received by this connection.

total_sends

bigint

Total number of network send requests issued by this connection.

total_receives

bigint

Total number of network receive requests issued by this connection.

encalg

smallint

Encryption algorithm used for this connection. Possible values:

1 = No Encryption

2 = RC4

3 = AES

Requires VIEW SERVER STATE permission on the server.

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