# NTP Peer Configuration

The NTP Peer Configuration dialog box displays configuration details of the peer system.

## Procedure

For CiscoView versions earlier than 5.2:

1. Right-click the device. Then select Configure, or double-click the device.

2. Select Protocols from the Category list.

3. Select NTP from the SelectProtocol list, then click the Details button. The NTP Configuration dialog box appears.

4. Select Peer Configuration from the Category list.

For CiscoView version 5.2 and later:

1. Right-click the device, then select Configure, or double-click the device.

2. Select Protocols from the Category list.

3. Select NTP from the SelectProtocol list. Then click the Details button. The NTP Configuration dialog box appears.

   Note: The left frame in the dialog box displays the categories and the right frame displays category details or a table. If a table is displayed, the variable on which the table is indexed and the key values of the index are listed below the category. Double-click the category to view the table and double-click a key value to view details of a particular row in the table.

   Multiple indexes for a table, if any, are listed below the category in a nested manner. Select a key value to view the rows of the table about that value. Select a key value of the lowest indexing variable to view the details of that particular row.

4. Select Peer Configuration from the left pane.

The following information appears:

Peer Association ID (cntpPeersAssocId)

Configured Association (cntpPeersConfigured)

Peer - IP Address (cntpPeersPeerAddress)

Peer - UDP Port Number (cntpPeersPeerPort)

Local - IP Address (cntpPeersHostAddress)

Local - UDP Port Number (cntpPeersHostPort)

Association Mode (cntpPeersMode)

Entry Status (cntpPeersEntryStatus)

Peer Reference ID (cntpPeersRefId)

Reachability Status of the Peer (cntpPeersReach)

Local host to Peer NTP Message Tx Interval (cntpPeersTimer)

Filter Register Table Valid Entries (cntpPeersFilterValidEntries)

Peer polls Local host Interval (cntpPeersPeerPoll)

Local host polls Peer Interval (cntpPeersHostPoll)

## Related Topics

NTP Filter Register

NTP Peer Clock Configuration

NTP System Configuration

### Peer Association ID (cntpPeersAssocId)

Integer value greater than 0 that uniquely identifies the peer with which the local NTP server is associated.

### Configured Association (cntpPeersConfigured)

If the value of the object is true, indicates that the association was created from configuration information and should not be de-associated even if the peer becomes unreachable.

### Peer - IP Address (cntpPeersPeerAddress)

IP address of the peer. When creating a new association, set a value for this object before making the row active.

### Peer - UDP Port Number (cntpPeersPeerPort)

UDP port number on which the peer receives NTP messages.

### Local - IP Address (cntpPeersHostAddress)

IP address of the local host. Multi-homing can be supported using this object.

### Local - UDP Port Number (cntpPeersHostPort)

UDP port number on which the local host receives NTP messages.

### Association Mode (cntpPeersMode)

Association mode of the NTP server. When creating a new peer association, if no value is specified for this object, it defaults to symmetricActive(1). Mode can be:

Value | Description
0 | unspecified
1 | symmetric active - A host operating in this mode sends periodic messages regardless of the reachability state or stratum of its peer. By operating in this mode the host announces its willingness to synchronize and be synchronized by the peer
2 | symmetric passive - This type of association is created when a message arrives from a peer operating in the symmetric active mode and persists only as long as the peer is reachable and operating at a stratum level less than or equal to the host; otherwise, the association is dissolved. However, the persists until at least one message has been sent in reply. By operating in this mode the host announces its willingness to synchronize and be synchronized by the peer
3 | client - A host operating in this mode sends periodic messages regardless of the reachability state or stratum of its peer. By operating in this mode the host, usually a LAN workstation, announces its willingness to be synchronized by, but not to synchronize the peer
4 | server - This type of association is ordinarily created upon arrival of a client request message and exists only in order to reply to that request, after which the association is dissolved. By operating in this mode the host, usually a LAN time server, announces its willingness to synchronize, but not to be synchronized by the peer
5 | broadcast - A host operating in this mode sends periodic messages regardless of the reachability state or stratum of the peers. By operating in this mode the host, usually a LAN time server operating on a high-speed broadcast medium, announces its willingness to synchronize all of the peers, but not to be synchronized by any of them
6 | reserved for NTP control messages
7 | reserved for private use

### Entry Status (cntpPeersEntryStatus)

Status object for this row. When a management station is creating a new row, it should set the value for cntpPeersPeerAddress at least, before the row can be made active(1).

### Peer Reference ID (cntpPeersRefId)

Reference identifier of the peer.

### Reachability Status of the Peer (cntpPeersReach)

Shift register that is used to determine the reachability status of the peer, with bits entering from the least significant (rightmost) end. A peer is considered reachable if at least one bit in this register is set to one. NTP protocol procedures fill the data in the shift register.

### Local host to Peer NTP Message Tx Interval (cntpPeersTimer)

Interval in seconds, between transmitted NTP messages from the local host to the peer.

### Filter Register Table Valid Entries (cntpPeersFilterValidEntries)

Number of valid entries for a peer in the filter register table. Since, the filter register table is optional, this object has a value 0 if the filter register table is not implemented.

### Peer polls Local host Interval (cntpPeersPeerPoll)

Interval at which the peer polls the local host.

### Local host polls Peer Interval (cntpPeersHostPoll)

Interval at which the local host polls the peer.