Command Reference Guide

112 ● display ospf error 3Com Router 5000 Family and Router 6000 Family
Command Reference
display ospf error
Purpose Use the display ospf error command to view the statistics of error information
which OSPF received.
Syntax display ospf [ process-id ] error
Parameters process-id
OSPF process ID. If no process ID is specified, the
command takes effect on all OSPF processes.
Example Display the statistics of error information which OSPF received.
<3Com > display ospf error
0: TE LSA : absence of (sub)TLV OSPF Process 1 with Router ID 1.1.1.1
OSPF packet error statistics:
0: IP: received my own packet 0: OSPF: wrong packet type
0: OSPF: wrong version 0: OSPF: wrong checksum
0: OSPF: wrong area id 0: OSPF: area mismatch
0: OSPF: wrong virtual link 0: OSPF: wrong authentication
type
0: OSPF: wrong authentication key 0: OSPF: too small packet
0: OSPF: packet size > ip length 0: OSPF: transmit error
0: OSPF: interface down 0: OSPF: unknown neighbor
0: HELLO: netmask mismatch 0: HELLO: hello timer mismatch
0: HELLO: dead timer mismatch 0: HELLO: extern option mismatch
0: HELLO: router id confusion 0: HELLO: virtual neighbor
unknown
0: HELLO: NBMA neighbor unknown 0: DD: neighbor state low
0: DD: router id confusion 0: DD: extern option mismatch
0: DD: unknown LSA type 0: LS ACK: neighbor state low
0: LS ACK: wrong ack 0: LS ACK: duplicate ack
0: LS ACK: unknown LSA type 0: LS REQ: neighbor state low
0: LS REQ: empty request 0: LS REQ: wrong request
0: LS UPD: neighbor state low 0: LS UPD: newer self-generate
LSA
0: LS UPD: LSA checksum wrong 0: LS UPD: received less recent
LSA
0: LS UPD: unknown LSA type 0: OSPF routing: next hop not
exist
0: DD: MTU option mismatch 0: ROUTETYPE: wrong type value
Table 19 Description on the fields of the display ospf error command
Field Description
IP: received my own packet The received packet was sent from myself.
OSPF: wrong packet type OSPF packet type error
OSPF: wrong version OSPF version error
OSPF: wrong checksum OSPF checksum error
OSPF: wrong area id OSPF area ID error
OSPF: area mismatch OSPF area mismatch
OSPF: wrong virtual link OSPF virtual link error
OSPF: wrong authentication type OSPF authentication type error