21-7 debug ip ospf packet

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Syntax Description:

This command has no arguments.

Purpose: To display OSPF packet information.

Example: Displaying OSPF Packet Information

The following is representative output from the debug ip ospf packet EXEC command.

 r6#  debug ip ospf packet  OSPF packet debugging is on r6#  6w4d: OSPF: rcv. v:2 t:1 l:48 rid:1.1.1.1   aid:0.0.0.7 chk:0 aut:2 keyid:8 seq:0xC from Serial0/1  

Table 21-1 provides a description for the highlighted lines of output as follows :

Table 21-1. Explanation for debug ip ospf packet Output
Field What It Represents
v: OSPF version
t:

Packet type:

1 “ Hello

2 “ Database Description

3 “ Link-State Request

4 “ Link-State Update

5 “ Link-State Acknowledgement

l: Packet length in bytes
rid: OSPF router ID
aid: OSPF area ID
aut:

Authentication used:

0 “ None

1 “ Simple password

2 “ MD5

keyid: MD5 authentication key
seq: Sequence number
From Interface that received the packet
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Cisco[r] OSPF Command and Configuration Handbook
Cisco OSPF Command and Configuration Handbook (paperback)
ISBN: 1587055406
EAN: 2147483647
Year: 2002
Pages: 236

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