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OSPF鄰居關(guān)系故障OSPF區(qū)域間路由故障Page3檢查鄰居關(guān)系故障的思路使用“display
ospf
error”查看錯(cuò)誤，定位錯(cuò)誤使用“display
current-configuration”命令查看相關(guān)配置修正配置錯(cuò)誤Page4故障描述－缺少區(qū)域內(nèi)路由Loopback0Loopback0E0/0E0/0/32RTA/30/30RTB/32[RTB]display
iprouting-tableRouting
Table:publicnetDestination/Mask Protocol
PreCostNexthopInterface/32DIRECT
00InLoopBack0/24DIRECT
00Ethernet0/0/32DIRECT
00InLoopBack0/8DIRECT
00InLoopBack0/32DIRECT
00InLoopBack0Area
1Page5查看OSPF錯(cuò)誤信息－Router
ID[RTB]display
ospf
errorOSPF
Process
1
with
Router
ID
OSPF
error
statistics:General
packet
errors:0000000:
IP:
received
my
own
packet:
Badversion:
Bad
area
id:
Bad
virtual
link:
Bad
authentication
key:
Packet
size
>
iplength:
Interfacedown0000000:
B
acket:
Badchecksum:
Drop
on
unnumbered
interface:
Bad
authentication
type:
Packet
toosmall:
Transmit
error:
Unknown
neighbor000: o
timermismatch:
Externoption
mismatch:
Virtual
neighbor
unknown00240O
packeterrors::
Netmaskmismatch:
Dead
timer
mismatch:Router
idconfusion:
NBMA
neighbor
unknownDD
packet
errors::
Neighbor
sta
ow00:
Router
idconfusion:
Unknown
LSA
type000:
Externoption
mismatch:
MTU
option
mismatch0:
Bad
ackLS
ACKpacket
errors:0 :
Neighbor
sta
ow-
More
(
Press
'Q'
to
break
)
-Page6查看OSPF相關(guān)配置[RTA]display
current-configuration#sysname
RTA#FTP
server
enable#l2tp
suffix-separator
@#router
id
#radius
scheme
system[RTB]display
current-configuration#sysname
RTB#FTP
server
enable#l2tp
suffix-separator
@#router
id
#radius
scheme
systemPage7查看OSPF錯(cuò)誤信息－Area
ID不匹配[RTB]display
ospf
errorOSPFProcess
1
with
Router
ID
OSPF
error
statistics:General
packeterrors::
IP:
received
my
own
packet:
Badversion:
Bad
area
id00100000:
Bad
virtual
link:
Bad
authentication
key:
Packet
size
>
iplength:
Interfacedown0000000:
B
acket:
Badchecksum:
Drop
on
unnumbered
interface:
Bad
authentication
type:
Packet
toosmall:
Transmit
error:
Unknown
neighbor000: o
timermismatch:Extern
option
mismatch:
Virtual
neighborunknown0000O
packeterrors::
Netmaskmismatch:
Dead
timer
mismatch:
Router
id
confusion:
NBMA
neighbor
unknownDDpacket
errors::
Neighbor
sta
ow00:
Router
id
confusion:
Unknown
LSA
type000:
Externoption
mismatch:
MTU
option
mismatchLSACK
packeterrors:0:
Bad
ack0 :
Neighbor
sta
ow-
More
(
Press
'Q'
to
break
)
-Page8查看OSPF相關(guān)配置[RTA]display
current-configuration
configuration
ospf#ospf
1area
network
network
#return[RTB]display
current-configuration
configuration
ospf#ospf
1area
network
network
#returnPage9查看OSPF錯(cuò)誤信息－網(wǎng)絡(luò)掩碼不一致[RTB]display
ospf
errorOSPF
Process
1
with
Router
ID
OSPF
error
statisticsGeneral
packet
errors:0000000:
IP:
received
my
own
packet:
Badversion:
Bad
area
id:
Bad
virtual
link:
Bad
authentication
key:
Packet
size
>
iplength:
Interfacedown0000000:
B
acket:
Badchecksum:
Drop
on
unnumbered
interface:
Bad
authentication
type:
Packet
too
small:
Transmit
error:
Unknown
neighbor000: o
timermismatch:
Externoption
mismatch:
Virtual
neighborunknown10000O
packeterrors::
Netmask
mismatch:
Dead
timer
mismatch:
Router
id
confusion:
NBMA
neighbor
unknownDD
packet
errors::
Neighbor
sta
ow00:
Router
idconfusion:
Unknown
LSA
type000:
Externoption
mismatch:
MTU
option
mismatchLS
ACKpacket
errors:0 :
Neighbor
sta
ow0:
Bad
ack-
More
(
Press
'Q'
to
break
)
-Page10查看OSPF相關(guān)配置[RTA]display
current-configuration#interface
Ethernet0/0ip
address
52#ospf
1area
network
network
#return[RTB]display
current-configuration#interface
Ethernet0/0ip
address
#ospf
1area
network
network
55#returnPage11查看OSPF錯(cuò)誤信息－驗(yàn)證類型不一致[RTB]display
ospf
errorOSPFProcess
1
with
Router
ID
OSPF
error
statisticsGeneral
packet
errors::
IP:
received
my
own
packet:
B
acket:
Bad
checksum0000000:
Bad
version:
Bad
area
id:
Bad
virtual
link:
Bad
authentication
key:Packet
size
>ip
length:
Interfacedown0002000:
Drop
on
unnumbered
interface:
Bad
authentication
type:
Packet
toosmall:
Transmit
error:
Unknown
neighbor000: o
timer
mismatch:
Externoption
mismatch:
Virtual
neighborunknown0000O
packeterrors::Netmask
mismatch:
Dead
timer
mismatch:
Router
id
confusion:
NBMA
neighbor
unknownDD
packet
errors::
Neighbor
sta
ow00:
Router
id
confusion:
Unknown
LSA
type000:
Externoption
mismatch:
MTU
option
mismatch0:
Bad
ackLS
ACKpacket
errors:0 :
Neighbor
sta
ow-
More
(
Press
'Q'
to
break
)
-Page12查看OSPF相關(guān)配置[RTA]display
current-configuration
configuration
ospf#ospf
1area
network
network
authentication-mode
md5
1
plain#return[RTB]display
current-configuration
configuration
ospf#ospf
1area
network
network
authentication-mode
simple
plain#returnPage13查看OSPF錯(cuò)誤信息－驗(yàn)證不一致[RTB]display
ospf
errorOSPFProcess
1
with
Router
ID
OSPF
error
statisticsGeneral
packet
errors::
IP:
received
my
own
packet:
B
acket:
Bad
checksum0000200:
Bad
version:
Bad
area
id:
Bad
virtual
link:
Bad
authentication
key:Packet
size
>ip
length:
Interfacedown0000000:
Drop
on
unnumbered
interface:
Bad
authentication
type:
Packet
toosmall:
Transmit
error:
Unknown
neighbor000: o
timer
mismatch:
Externoption
mismatch:
Virtual
neighborunknown0000O
packeterrors::Netmask
mismatch:
Dead
timer
mismatch:
Router
id
confusion:
NBMA
neighbor
unknownDD
packet
errors::
Neighbor
sta
ow00:
Router
id
confusion:Unknown
LSA
type000:
Extern
option
mismatch:
MTU
option
mismatchLS
ACKpacket
errors:0 :
Neighbor
sta
ow0:
Bad
ack-
More
(
Press
'Q'
to
break
)
-Page14查看OSPF相關(guān)配置[RTA]display
current-configuration
interface
Ethernet
0/0#interface
Ethernet0/0ip
address
52ospf
authentication-mode
simple
plain#return[RTB]display
current-configuration
interface
Ethernet
0/0#interface
Ethernet0/0ip
address
52ospf
authentication-mode
simple
plain
o#returnPage15故障描述－NBMA網(wǎng)絡(luò)無(wú)法學(xué)習(xí)路由FR-SWArea
1Loopback0/32/24
S1/0RTA
DLCI
=
102
/24S1/0DLCI
=
201
RTBLoopback0/32[RTA]display
ip
routing-tableRouting
Table:
public
netDestination/MaskProtocolPreCostNexthopInterface/32DIRECT00InLoopBack0/24DIRECT00Serial1/0/32DIRECT00InLoopBack0/32DIRECT00Serial1/0/8DIRECT00InLoopBack0/32DIRECT00InLoopBack0Page16查看NBMA靜態(tài)鄰居配置[RTA]display
current-configuration
configuration
ospf#ospf
1peer
area
network
network
55#return[RTB]display
current-configuration
configuration
ospf#ospf
1peer
area
network
network
55#returnPage17鄰居關(guān)系無(wú)法建立原因總結(jié)參數(shù)配置要點(diǎn)router
id每臺(tái)OSPF路由器的router
id必須唯一area
id同一網(wǎng)段的所有端口應(yīng)當(dāng)配置在同一區(qū)域內(nèi)network
mask除了點(diǎn)到點(diǎn)網(wǎng)絡(luò)之外，同一網(wǎng)段的所有端口應(yīng)當(dāng)配置相同的掩碼authentication
type同一區(qū)域的驗(yàn)證類型必須一致authentication
data同一網(wǎng)段的 必須一致extern
option配置stub區(qū)域或者NSSA時(shí)，區(qū)域內(nèi)的所有路由器都需要指定stub特性或者NSSA特性peerNBMA網(wǎng)絡(luò)上的鄰居需要手動(dòng)指定Page18OSPF鄰居關(guān)系故障OSPF區(qū)域間路由故障Page19故障描述－區(qū)域間路由不正確RTCPage20RTAS0/30/30S0RTBS1/30/30S2Area
0
S1
S0
/30
/30Area
1Area
2Page21故障描述－區(qū)域間路由不正確[RTA]display
ip
routing-tableRouting
Tables:
PublicDestination/MaskProtoPreCostNextHopInterface/30Direct00Serial0/32Direct00InLoopBack0/32Direct00Serial0/30OSPF103124Serial0/30Direct00Serial1/32Direct00Serial1/32Direct00InLoopBack0[RTB]display
ip
routing-tableRouting
Tables:
PublicDestination/MaskProtoPreCostNextHopInterface/30Direct00Serial0/32Direct00Serial0/32Direct00InLoopBack0/30Direct00Serial1/32Direct00InLoopBack0/32Direct00Serial1/30OSPF103124Serial0修改OSPF配置[RTB]display
current-configuration
configuration
ospf#ospf
1area
network
area
network
vlink-peer
#return[RTC]display
current-configuration
configuration
ospf#ospf
1area
network
vlink-peer
area
network
#returnPage22Page23查看路由表[RTA]display
ip
routing-tableRouting
Tables:
PublicDestination/MaskProtoPreCostNextHopInterface/30Direct00Serial0/32Direct00InLoopBack0/32Direct00Serial0/30OSPF103124Serial0/30Direct00Serial1/32Direct00Serial1/32Direct00InLoopBack0[RTB]display
ip
routing-tableRouting
Tables:
PublicDestination/MaskProtoPreCostNextHopInterface/30Direct00Serial0/32Direct00Serial0/32Direct00InLoopBack0/30Direct00Serial1/32Direct00InLoopBack0/32Direct00Serial1/30OSPF103124Serial0OSPF103124Serial1修改OSPF配置[RTA]display
current-configuration
configuration
ospf#ospf
1area
network
area
network
vlink-peer
#return[RTC]display
current-configuration
configuration
ospf#ospf
1area
network
vlink-peer
area
network
vlink-peer
#returnPage24Page25查看路由表[RTA]display
ip
routing-tableRouting
Tables:
PublicDestination/MaskProtoPreCostNextHopInterface/30Direct00Serial0/32Direct00InLoopBack0/32Direct00Serial0/30OSPF103124Serial0OSPF103124Serial1/30Direct00Serial1/32Direct00Serial1/32Direct00InLoopBack0[RTB]display
ip
routing-tableRouting
Tables:
PublicDestination/MaskProtoPreCostNextHopInterface/30Direct00Serial0/32Direct00Serial0/32Direct00InLoopBack0/30Direct00Serial1/32Direct00InLoopBack0/32Direct00Serial1/30OSPF103124Serial0OSPF103124Serial1/32故障描述－路由匯聚不正確RTBArea
0RTA/30S2/30S2Page26/30S0/30S0RTDArea
1RTCS0/30S1
S0
/30Loopback2S1/30/30
Loopback1/32故障描述－路由匯聚不正確Routes
:
13Page27[RTA]display
ip
routing-tableRouting
Tables:
PublicDestinations
:
13Destination/Mask
Proto
PreCostNextHopInterface/30Direct00Serial2/32Direct00InLoopBack0/32Direct00Serial2/30Direct00Serial0/32Direct00InLoopBack0/32Direct00Serial0/30OSPF103124Serial2/30OSPF103124Serial0/24OSPF103125Serial0/32OSPF103125Serial2/32OSPF103125Serial2/8Direct00InLoopBack0/32Direct00InLoopBack0Page28故障描述－路由匯聚不正確[RTD]display
ip
routing-tableRouting
Tables:
PublicDestinations
:
13 Routes
:
13Destination/MaskProtoPreCostNextHopInterface/30Direct00Serial2/32Direct00Serial2/32Direct00InLoopBack0/30OSPF103124Serial2/30Direct00Serial0/32Direct00InLoopBack0/32Direct00Serial0/30OSPF103124Serial0/24OSPF104687Serial2/32OSPF101563Serial0/32OSPF101563Serial0/8Direct00InLoopBack0/32Direct00InLoopBack0Page29故障描述－路由匯聚不正確[RTC]display
ip
routing-tableRouting
Tables:
PublicDestinations
:
13 Routes
:
13Destination/MaskProtoPreCostNextHopInterface/30OSPF103124Serial1/30OSPF103124Serial0/30Direct00Serial1/32Direct00Serial1/32Direct00InLoopBack0/30Direct00Serial0/32Direct00Serial0/32Direct00InLoopBack0/24OSPF106249Serial1/32Direct00InLoopBack0/32Direct00InLoopBack0/8Direct00InLoopBack0/32Direct00InLoopBack0查看路由匯聚相關(guān)配置[RTB]display
current-configuration
configuration
ospf#ospf
1area
network
area
abr-summary
network
#return[RTD]display
current-configuration
configuration
ospf#ospf
1area
network
area
network
#returnPage30故障描述－路由匯聚不正確S1S0
/30Loopback2/32/30RTAPage31S0/30/30
S0S2/30RTBRTC/30
S3
Loopback1/32RTDRTEArea
0Area
1S3/30Area
2S3
/30Page32故障描述－路由匯聚不正確[RTA]display
ip
routing-table
protocol
ospfPublic
Routing
Table
:
OSPFDestination/MaskProtoPreCostNextHopInterface/30OSPF103124Serial0/30OSPF104686Serial0/30OSPF106248Serial0/24OSPF103125Serial0/32OSPF106249Serial0/32OSPF106249Serial0[RTE]display
ip
routing-table
protocol
ospfPublic
Routing
Table
:
OSPFDestination/MaskProtoPreCostNextHopInterface/30OSPF106248Serial3/30OSPF104686Serial3/30OSPF103124Serial3/32OSPF103125Serial3/32OSPF103125Serial3查看OSPF相關(guān)配置[RTB]display
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