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OSPF Debug and Show Commands

5-108 Configuring the Internet Protocol

Syntax

debug ip ospf nbr

Syntax of the “no” Form

Thenoformofthiscommandreturnsthedebugfunctiontothedefault:

no debug ip ospf nbr

Mode

EXECconfiguration:XSR>

Examples

ThefollowingexampledisplaysaTransmitDatabaseDescriptionpacket:

OSPF: Tx DDP. nbr:10.0.0.1 mtu:05dc opt:42 flg:00 seq:00002400 from

GigabitEthernet 2.1

Thefollowingexampledisplaysareceiveddatabasedescriptionpacketfromincominginterface

GigabitEthernet2.1‐I:

OSPF: Rx DDP. nbr:10.0.0.1 mtu:05dc opt:42 flg:03 seq:00002401 from

GigabitEthernet 2.1

ThefollowingexampledisplaysaNeighborChangingstatewheretheneighborrouterIDis

10.0.0.1,theneighborIPaddressis2.2.3.21,andthepreviousstateisEXCHANGE.

OSPF: NBR change state. nbr:10.0.0.1 ipa:1.2.3.21 state:EXCHANGE

Thefollowingexampleindicatestheneighborisaslaveforthedatabaseexchange:

OSPF: NBR is slave. nbr:10.0.0.1 ipa:2.2.3.21 state:EX_START

Parameter Descriptions

TxDDP OSPFTransmitDatabaseDescriptionpacket

nbr:10.0.0.1 NeighborIPaddress

mtu:05dc InterfaceMTU

opt:42 Options

flg:00 Flags

seq:00002400 Sequencenumber

fromGigabitEthernet2.1 Outgoinginterface

Rx DDP

OSPFReceivedDatabaseDescriptionpacket

from GigabitEthernet 2.1

Incominginterface

NBR change state

NeighborChangingstate

nbr:10.0.0.1

NeighborRouterID

ipa:2.2.3.21

NeighborIPaddress

state:EXCHANGE

PreviousState

NBR is slave

Neighborisaslaveforadatabaseexchange.

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