display ospfv3 error

Function

The display ospfv3 error command displays statistics about OSPFv3 errors.

Format

display ospfv3 [ process-id ] error [ lsa ]

Parameters

Parameter	Description	Value
process-id	Specifies an OSPFv3 process ID. If process-id is not specified, errors of all OSPFv3 processes are displayed.	The value ranges from 1 to 65535.
lsa	Displays statistics about OSPFv3 LSA errors.	N/A

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

To check statistics about OSPFv3 errors, run the display ospfv3 error command. The command output helps you diagnose faults.

Example

# Display statistics about OSPFv3 errors.

<sysname> display ospfv3 error

          OSPFv3 Process 1 with Router ID 0.0.0.0
                  OSPFV3 Error Statistics

General Packet Errors :
 0     : Bad packet                     0     : Bad version
 0     : Bad area ID                    0     : Bad virtual link
 0     : Packet too small               0     : Transmit error
 0     : Bad Instance ID                0     : Interface down
 0     : Unknown neighbor               0     : Authentication failure
 0     : AuthSeqNum mismatch            0     : AuthKeyId mismatch
 0     : IPv6: received my own packet   0     : Bad Checksum

Hello Packet Errors :
 0     : Hello timer mismatch          0     : Dead timer mismatch
 0     : Extern option mismatch        0     : Router ID confusion
 0     : Virtual neighbor unknown

DD Packet Errors :
 0     : Neighbor state low            0     : Extern option mismatch
 0     : Unknown LSA Type              0     : MTU option mismatch
 0     : Router ID confusion

LS Ack packet Errors :
 0     : Neighbor state low            0     : Bad ACK
 0     : Duplicate ACK                 0     : Unknown LSA type

LS REQ packet Errors :
 0     : Neighbor state low            0     : Bad request
 0     : Empty Request

LS UPD packet Errors :
 0     : Neighbor state low            0     : LSA checksum bad
 0     : Received less recent LSA      0     : Unknown LSA type
 0     : Newer self-generate LSA
 0     : Received LSA within LSA Arrival interval

Receive Grace LSA errors :
 0     : Number of invalid LSAs
 0     : Number of policy failed LSAs
 0     : Number of wrong period LSAs

License Errors :
 0     : Max external routes reached    0     : Max NBRs reached

**Table 1** Description of the **display ospfv3** **error** command output
Item	Description
General Packet Errors	Title bar: General packet errors
Bad packet	Number of packets with incorrect lengths
Bad version	Number of packets with incorrect version number (not version 3)
Bad area id	Number of received packets with incorrect area IDs (different from the local one or not 0)
Bad virtual link	Number of incorrect packets from a virtual link
Packet too small	Number of received packets with length different from the sum of the IP header length and the value in the length field
Transmit error	Number of packets that fail to be sent to the socket
Bad Instance ID	Number of packets with incorrect instance IDs
Interface down	Number of packets with incorrect number of times for which an OSPFv3 interface goes Down
Unknown neighbor	Number of OSPFv3 packets received from non-OSPFv3 neighbors on NBMA, sham link, and virtual link networks
Authentication failure	Number of packets that fail to be authenticated
AuthSeqNum mismatch	Number of packets with a sequence number different from the local one
AuthKeyId mismatch	Number of packets with key IDs different from the local one
IPv6: received my own packet	Indicates that the IPv6 packet sent by its own interface is received and therefore the packet is not processed.
Bad Checksum	Number of packets that fail in the check and calculation
Hello Packet Errors	Title bar: Hello packet errors
Hello timer mismatch	Number of packets with Hello intervals different from the local one
Dead timer mismatch	Number of packets with Dead intervals different from the local one
Extern option mismatch	Number of packets with the Hello extension attributes different from the local one
Router id confusion	Number of packets with conflicted router IDs
Virtual neighbor unknown	Number of packets with router IDs different from that configured for the neighbor on the virtual link
DD packet errors	Title bar: DD packet errors
Neighbor state low	Error cases: The local device receives DD packets, but the neighbor status is lower than 2-way. The local device receives LSR packets, but the neighbor status is lower than Exchange. The local device receives LSU packets, but the neighbor status is lower than Exchange. The local device receives ACK packets, but the neighbor status is lower than Exchange.
Extern option mismatch	Number of DD packets with options different from the local ones
MTU option mismatch	MTU check is enabled on the OSPFv3 interface, and the MTU values of received DD packets are greater than the local one.
Unknown LSA Type	The router receives unknown LSAs from neighbors that are not enabled with OSPFv3.
Router ID confusion	Router IDs conflict
LS Ack packet Errors	Title bar: LS ACK packet errors
Bad ack	Count of received incorrect ACK packets
Duplicate ack	Count of received duplicate ACK packets
LS REQ packet Errors	Title bar: LS REQ packet errors
Bad request	Number of bad request events in the protocol
Empty Request	Number of empty requests
LS UPD packet Errors	Title bar: LS UPD packet error
Received less recent LSA	The local device receives older LSAs than the local copy.
LSA checksum bad	LSA checksum is incorrect.
Unknown LSA type	The router receives unknown LSAs from neighbors that are not enabled with OSPFv3.
Newer self-generate LSA	Number of LSAs generated recently and locally
Received LSA within LSA Arrival interval	Number of received LSAs within the arrival interval
Receive Grace LSA errors	Title bar: Grace LSA error
Number of invalid LSAs	Number of invalid LSAs
Number of policy failed LSAs	Number of LSAs with policy failures
Number of wrong period LSAs	Number of LSAs with incorrect intervals
License Errors	Title bar: License errors
Max external routes reached	Number of external routes that reached the maximum value
Max NBRs reached	Number of neighbors that reached the maximum value