# NTP Peer Clock Configuration

The NTP Peer Clock Configuration dialog box displays peer clock configuration details.

## 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 Clock 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 Clock Configuration from the left pane.

The following information appears:

Peer Association ID (cntpPeersAssocId)

Leap Indicator (cntpPeersLeap)

Peer Clock Stratum (cntpPeersStratum)

Peer Clock Precision (cntpPeersPrecision)

Offset relative to Local clock (cntpPeersOffset)

Dispersion relative to Primary Reference (cntpPeersRootDispersion)

Dispersion relative to Local clock (cntpPeersDispersion)

Round-trip Delay to Primary Reference (cntpPeersRootDelay)

Round-trip Delay relative to Local clock (cntpPeersDelay)

Peer Clock Update Time (cntpPeersRefTime)

NTP Message Tx Local Time at Peer (cntpPeersOrgTime)

NTP Message Rx Local Time (cntpPeersReceiveTime)

NTP Message Tx Local Time (cntpPeersTransmitTime)

NTP Message Rx Local Time for Update (cntpPeersUpdateTimeRev1)

## Related Topics

NTP Filter Register

NTP Peer 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.

### Leap Indicator (cntpPeersLeap)

Two-bit code that warns of an impending leap second to be inserted in the NTP timescale of the peer.

### Peer Clock Stratum (cntpPeersStratum)

Stratum of the peer clock.

### Peer Clock Precision (cntpPeersPrecision)

Signed integer that indicates the precision of the peer clock, in seconds to the nearest power of two. The value is rounded to the next larger power of two; for instance, a 50-Hz (20 ms) or 60-Hz (16.67 ms) power-frequency clock would be assigned the value -5 (31.25 ms), while a 1000-Hz (1 ms) crystal-controlled clock would be assigned the value -9 (1.95 ms).

### Offset relative to Local clock (cntpPeersOffset)

Estimated offset of the peer clock relative to the local clock, in seconds. The host determines the value of this object using the NTP clock-filter algorithm.

### Dispersion relative to Primary Reference (cntpPeersRootDispersion)

Maximum error in seconds, of the peer clock relative to the primary reference source at the root of the synchronization subnet. Only positive values greater than zero are possible.

### Dispersion relative to Local clock (cntpPeersDispersion)

Estimated maximum error of the peer clock relative to the local clock over the network path between them, in seconds. The host determines the value of this object using the NTP clock-filter algorithm.

### Round-trip Delay to Primary Reference (cntpPeersRootDelay)

Signed fixed-point number indicating the total round-trip delay in seconds, from the peer to the primary reference source at the root of the synchronization subnet.

### Round-trip Delay relative to Local clock (cntpPeersDelay)

Estimated round-trip delay of the peer clock relative to the local clock over the network path between them, in seconds. The host determines the value of this object using the NTP clock-filter algorithm.

### Peer Clock Update Time (cntpPeersRefTime)

Local time of the peer when its clock was last updated. If the peer clock has never been synchronized, the value is zero.

### NTP Message Tx Local Time at Peer (cntpPeersOrgTime)

Local time of the peer, when its latest NTP message was sent. If the peer becomes unreachable the value is set to zero.

### NTP Message Rx Local Time (cntpPeersReceiveTime)

Local time, when the latest NTP message from the peer arrived. If the peer becomes unreachable the value is set to zero.

### NTP Message Tx Local Time (cntpPeersTransmitTime)

Local time at which the NTP message left the sender.

### NTP Message Rx Local Time for Update (cntpPeersUpdateTimeRev1)

Local time when the most recent NTP message was received from the peer that was used to calculate the skew dispersion. This represents only the 32-bit integer part of the NTPTimestamp.