# Circuit Errors

## Navigation

1. Select Device > Monitor > ISIS > Circuit Table.

2. With a circuit selected, click Circuit Errors.

Depending on how the selected circuit is configured, you will see at least one of the following categories:

> lanlevel1(1)—LAN Level 1

> lanlevel1(2)—LAN Level 2

> p2pcircuit(3)—point-to-point circuit

The following information appears:

> Adjacency Changes (ciiCircAdjChanges)

> Adjacency Numbers (ciiCircNumAdj)

> Initialization Fails (ciiCircInitFails)

> Rejected Adjacencies (ciiCircRejAdjs)

> ID Field Len Mismatches (ciiCircIDFieldLenMismatches)

> Max Area Addr Mismatches (ciiCircMaxAreaAddrMismatches)

> Authentication Type Fails (ciiCircAuthTypeFails)

> Authentication Fails (ciiCircAuthFails)

> LAN Designated IS Changes (ciiCircLANDesISChanges)

##

### Adjacency Changes (ciiCircAdjChanges)

Number of times an adjacency state change has occurred on this circuit.

### Adjacency Numbers (ciiCircNumAdj)

Number of adjacencies on this circuit.

### Initialization Fails (ciiCircInitFails)

Number of times the initialization of this circuit has failed. This includes events such as PPP NCP failures.

Note: Failures to form an adjacency are indicated by ciiCircRejAdjs.

### Rejected Adjacencies (ciiCircRejAdjs)

Number of times an adjacency has been rejected on this circuit.

### ID Field Len Mismatches (ciiCircIDFieldLenMismatches)

Number of times an IS-IS control PDU with an ID field length that is different than the one configured for this system has been received.

### Max Area Addr Mismatches (ciiCircMaxAreaAddrMismatches)

Number of times an IS-IS control PDU with a max area address value that is different than the one configured for this system has been received.

### Authentication Type Fails (ciiCircAuthTypeFails)

Number of times an IS-IS control PDU with an authentication type that is different than the one configured for this system has been received.

### Authentication Fails (ciiCircAuthFails)

Number of times an IS-IS control PDU with the correct authentication type has failed to be authenticated.

### LAN Designated IS Changes (ciiCircLANDesISChanges)

Number of times the designated IS has changed at this level on this circuit.

Note: If the circuit is a point-to-point circuit, then the value of this object is zero.