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display ospfv3 error

Function

The display ospfv3 error command displays the OSPFv3 errors.

Format

display ospfv3 [ process-id ] error [ lsa ]

Parameters

Parameter Description Value

process-id

Specifies the OSPFv3 process ID.

If no OSPFv3 process number is specified, errors of all OSPFv3 processes are displayed.

The value ranges from 1 to 65535.

lsa

Display the OSPFv3 LSA errors

-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

While analyzing the faults of OSPFv3, you can obtain information of errors using the command. You can then diagnose the faults of OSPFv3 according to information.

Example

# Display the errors of OSPFv3.

<HUAWEI> 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

General packet errors.

Bad packet

The analyzed packet errors, including the verification of the length field.

Bad version

OSPFv3 version errors, that is, it is not version 3.

Bad area ID

Area ID in the received packet does not match. That is, when the area IDs in the received packets are different from the local area ID, except area 0, other area IDs are considered incorrect.

Bad virtual link

V-link receives illegal packets.

Packet too small

Length of the received packet is less than the sum of length of IP header and the length field of the packet.

Transmit error

Transmitting packets to socket fails.

Bad Instance ID

The Instance ID errors

Interface down

Times that the OSPFv3 interface goes Down.

Unknown neighbor

For NBMA, sham-link, and V-link networks, the device receives OSPFv3 packets from neighbors that are not enabled with OSPFv3.

Authentication failure

Times that the authentication fails.

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

Number of IPv6 packets received from self.

Bad Checksum

Number of packets that fail in the check and calculation

Hello Packet Errors

Hello packet errors.

Hello timer mismatch

The Hello interval is not consistent.

Dead timer mismatch

The Dead interval is not consistent.

Extern option mismatch

The extension attributes of the Hello packet is not consistent.

Router ID confusion

Router id is configured to the same.

Virtual neighbor unknown

Router id of the packet is inconsistent with that of the neighbor that is configured by the V-link.

DD Packet Errors

DD packet errors.

Neighbor state low

Cases of error:
  • DD packet is received but its neighbor status is lower than 2-way.

  • LSR packet is received but its neighbor status is lower than Exchange.

  • LSU packet is received but its neighbor status is lower than Exchange.

  • ACK packet is received but its neighbor status is lower than Exchange.

Extern option mismatch

Option of the DD packets is not matched.

Unknown LSA Type

The router receives unknown LSA type from neighbors that are not enabled with OSPFv3.

MTU option mismatch

MTU check of the interface on which OSPFv3 is enabled. The MTU value of the DD packet that is received on the interface is greater than that of this interface.

LS ACK packet Errors

LS ACK packet errors.

Bad ACK

The count of receiving incorrect ACK packets.

Duplicate ACK

The count of receiving repeat ACK packets.

LS REQ packet Errors

Title bar: LS REQ packet errors.

Bad request

BadRequest event in the protocol.

Empty Request

Number of Empty Request.

LS UPD packet Errors

LS UPD packet error.

LSA checksum bad

LSA checksum not proper

Received less recent LSA

Receiving older LSA than the local copy.

Newer self-generate LSA

LSA recently generated by self.

Received LSA within LSA Arrival interval

Received LSA within arrival interval.

Receive Grace LSA errors

Title bar: Grace LSA error.

Number of invalid LSAs

Number of LSAs that are invalid.

Number of policy failed LSAs

Number of LSAs with policy failure.

Number of wrong period LSAs

Number of LSAs with wrong period.

License Errors

License errors.

Max external routes reached

Number of external routes reached the maximum value.

Max NBRs reached

Number of neighbors reached the maximum value.

Copyright © Huawei Technologies Co., Ltd.
Copyright © Huawei Technologies Co., Ltd.
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