OSPF P2MP 扩展知识

435243

在帧中继二层网络中，如果要使用p2mp采用网络类型为broadcast，需要注意：一、HUB点必须为DR，二、需要在R2与R3之间再建立一条PVC，以此来使R2，R3彼此之间来学习到正确的下一跳，否则如R2学习到33.1.1.1的下一跳是10.1.123.3，造成ping不通。（由于DLCI只有2个号，因此借用之前的两个DLCI号）
yeslab实验，我怎么觉得这个实验没多大意义，但是留作学习使用


R1：
<Huawei>dis current-configuration conf ospf
[V200R003C00]
#
ospf 1
area 0.0.0.0
  network 10.1.123.0 0.0.0.255
  network 11.1.1.1 0.0.0.0
#
return
<Huawei>dis cu int s 1/0/0
[V200R003C00]
#
interface Serial1/0/0
link-protocol fr
fr map ip 10.1.123.2 102 broadcast
fr map ip 10.1.123.3 103 broadcast
ip address 10.1.123.1 255.255.255.0
ospf network-type broadcast
#
return
<Huawei>dis ospf int s1/0/0

OSPF Process 1 with Router ID 11.1.1.1
Interfaces


Interface: 10.1.123.1 (Serial1/0/0)
Cost: 48      State: DR        Type: Broadcast    MTU: 1500  
Priority: 1
Designated Router: 10.1.123.1
Backup Designated Router: 10.1.123.3
Timers: Hello 10 , Dead 40 , Poll  120 , Retransmit 5 , Transmit Delay 1
<Huawei>dis ospf pe
<Huawei>dis ospf peer

OSPF Process 1 with Router ID 11.1.1.1
Neighbors

Area 0.0.0.0 interface 10.1.123.1(Serial1/0/0)'s neighbors
Router ID: 22.1.1.1         Address: 10.1.123.2      
   State: Full  Mode:Nbr is  Master  Priority: 1
   DR: 10.1.123.1  BDR: 10.1.123.2  MTU: 0   
   Dead timer due in 40  sec
   Retrans timer interval: 5
   Neighbor is up for 00:18:17     
   Authentication Sequence: [ 0 ]

Router ID: 33.1.1.1         Address: 10.1.123.3      
   State: Full  Mode:Nbr is  Master  Priority: 1
   DR: 10.1.123.1  BDR: 10.1.123.3  MTU: 0   
   Dead timer due in 33  sec
   Retrans timer interval: 5
   Neighbor is up for 00:19:08     
   Authentication Sequence: [ 0 ]

<Huawei>dis ospf bri

OSPF Process 1 with Router ID 11.1.1.1
OSPF Protocol Information

RouterID: 11.1.1.1         Border Router:
Multi-VPN-Instance is not enabled
Global DS-TE Mode: Non-Standard IETF Mode
Graceful-restart capability: disabled
Helper support capability  : not configured
Applications Supported: MPLS Traffic-Engineering
Spf-schedule-interval: max 10000ms, start 500ms, hold 1000ms
Default ASE parameters: Metric: 1 Tag: 1 Type: 2
Route Preference: 10
ASE Route Preference: 150
SPF Computation Count: 89   
RFC 1583 Compatible
Retransmission limitation is disabled
Area Count: 1   Nssa Area Count: 0
ExChange/Loading Neighbors: 0
Process total up interface count: 2
Process valid up interface count: 1

Area: 0.0.0.0          (MPLS TE not enabled)
Authtype: None   Area flag: Normal
SPF scheduled Count: 89   
ExChange/Loading Neighbors: 0
Router ID conflict state: Normal
Area interface up count: 2

Interface: 11.1.1.1 (LoopBack0)
Cost: 0       State: P-2-P     Type: P2P       MTU: 1500  
Timers: Hello 10 , Dead 40 , Poll  120 , Retransmit 5 , Transmit Delay 1

Interface: 10.1.123.1 (Serial1/0/0)
Cost: 48      State: DR        Type: Broadcast    MTU: 1500  
Priority: 1
Designated Router: 10.1.123.1
Backup Designated Router: 10.1.123.3
Timers: Hello 10 , Dead 40 , Poll  120 , Retransmit 5 , Transmit Delay 1
<Huawei>dis ip rou
<Huawei>dis ip routing-table pr
<Huawei>dis ip routing-table protocol ospf
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Public routing table : OSPF
         Destinations : 2        Routes : 2        

OSPF routing table status : <Active>
         Destinations : 2        Routes : 2

Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface

       22.1.1.1/32  OSPF    10   48          D   10.1.123.2      Serial1/0/0
       33.1.1.1/32  OSPF    10   48          D   10.1.123.3      Serial1/0/0

OSPF routing table status : <Inactive>
         Destinations : 0        Routes : 0

<Huawei>dis ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
         Destinations : 12       Routes : 12      

Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface

     10.1.123.0/24  Direct  0    0           D   10.1.123.1      Serial1/0/0
     10.1.123.1/32  Direct  0    0           D   127.0.0.1       Serial1/0/0
     10.1.123.2/32  Direct  0    0           D   10.1.123.2      Serial1/0/0
     10.1.123.3/32  Direct  0    0           D   10.1.123.3      Serial1/0/0
   10.1.123.255/32  Direct  0    0           D   127.0.0.1       Serial1/0/0
       11.1.1.1/32  Direct  0    0           D   127.0.0.1       LoopBack0
       22.1.1.1/32  OSPF    10   48          D   10.1.123.2      Serial1/0/0
       33.1.1.1/32  OSPF    10   48          D   10.1.123.3      Serial1/0/0
      127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0
      127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0

<Huawei>dis os
<Huawei>dis ospf pe
<Huawei>dis ospf peer bri

OSPF Process 1 with Router ID 11.1.1.1
  Peer Statistic Information
----------------------------------------------------------------------------
Area Id          Interface                        Neighbor id      State   
0.0.0.0          Serial1/0/0                      22.1.1.1         Full        
0.0.0.0          Serial1/0/0                      33.1.1.1         Full        

----------------------------------------------------------------------------
<Huawei>
-------------------------
R2：
<Huawei>dis cu conf ospf
[V200R003C00]
#
ospf 1
area 0.0.0.0
  network 10.1.123.0 0.0.0.255
  network 22.1.1.1 0.0.0.0
#
return
<Huawei>dis cu inter s 1/0/0
[V200R003C00]
#
interface Serial1/0/0
link-protocol fr
fr map ip 10.1.123.1 201 broadcast
fr map ip 10.1.123.3 201 （R2到R3需要建立一条pvc，借用到R1的dlci号，如果不做这条R2与R3学习到彼此的路由下一跳均是对端地址，而非R1地址，造成路由不可达）
ip address 10.1.123.2 255.255.255.0
ospf network-type broadcast
#
return
<Huawei>dis ospf inter s1/0/0

OSPF Process 1 with Router ID 22.1.1.1
Interfaces


Interface: 10.1.123.2 (Serial1/0/0)
Cost: 48      State: BDR       Type: Broadcast    MTU: 1500  
Priority: 1
Designated Router: 10.1.123.1
Backup Designated Router: 10.1.123.2
Timers: Hello 10 , Dead 40 , Poll  120 , Retransmit 5 , Transmit Delay 1
<Huawei>
<Huawei>dis ospf peer bri

OSPF Process 1 with Router ID 22.1.1.1
  Peer Statistic Information
----------------------------------------------------------------------------
Area Id          Interface                        Neighbor id      State   
0.0.0.0          Serial1/0/0                      11.1.1.1         Full        

----------------------------------------------------------------------------
<Huawei>dis ospf br
<Huawei>dis ospf brief

OSPF Process 1 with Router ID 22.1.1.1
OSPF Protocol Information

RouterID: 22.1.1.1         Border Router:
Multi-VPN-Instance is not enabled
Global DS-TE Mode: Non-Standard IETF Mode
Graceful-restart capability: disabled
Helper support capability  : not configured
Applications Supported: MPLS Traffic-Engineering
Spf-schedule-interval: max 10000ms, start 500ms, hold 1000ms
Default ASE parameters: Metric: 1 Tag: 1 Type: 2
Route Preference: 10
ASE Route Preference: 150
SPF Computation Count: 96   
RFC 1583 Compatible
Retransmission limitation is disabled
Area Count: 1   Nssa Area Count: 0
ExChange/Loading Neighbors: 0
Process total up interface count: 2
Process valid up interface count: 1

Area: 0.0.0.0          (MPLS TE not enabled)
Authtype: None   Area flag: Normal
SPF scheduled Count: 96   
ExChange/Loading Neighbors: 0
Router ID conflict state: Normal
Area interface up count: 2

Interface: 22.1.1.1 (LoopBack0)
Cost: 0       State: P-2-P     Type: P2P       MTU: 1500  
Timers: Hello 10 , Dead 40 , Poll  120 , Retransmit 5 , Transmit Delay 1

Interface: 10.1.123.2 (Serial1/0/0)
Cost: 48      State: BDR       Type: Broadcast    MTU: 1500  
Priority: 1
Designated Router: 10.1.123.1
Backup Designated Router: 10.1.123.2
Timers: Hello 10 , Dead 40 , Poll  120 , Retransmit 5 , Transmit Delay 1
<Huawei>
<Huawei>dis ip rou
<Huawei>dis ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
         Destinations : 12       Routes : 12      

Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface

     10.1.123.0/24  Direct  0    0           D   10.1.123.2      Serial1/0/0
     10.1.123.1/32  Direct  0    0           D   10.1.123.1      Serial1/0/0
     10.1.123.2/32  Direct  0    0           D   127.0.0.1       Serial1/0/0
     10.1.123.3/32  Direct  0    0           D   10.1.123.3      Serial1/0/0
   10.1.123.255/32  Direct  0    0           D   127.0.0.1       Serial1/0/0
       11.1.1.1/32  OSPF    10   48          D   10.1.123.1      Serial1/0/0
       22.1.1.1/32  Direct  0    0           D   127.0.0.1       LoopBack0
       33.1.1.1/32  OSPF    10   48          D   10.1.123.3      Serial1/0/0
      127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0
      127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0

<Huawei>dis ip rou
<Huawei>dis ip routing-table pr ospf
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Public routing table : OSPF
         Destinations : 2        Routes : 2        

OSPF routing table status : <Active>
         Destinations : 2        Routes : 2

Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface

       11.1.1.1/32  OSPF    10   48          D   10.1.123.1      Serial1/0/0
       33.1.1.1/32  OSPF    10   48          D   10.1.123.3      Serial1/0/0

OSPF routing table status : <Inactive>
         Destinations : 0        Routes : 0
---------------------------------------
R3：
[Huawei]dis cu conf ospf
[V200R003C00]
#
ospf 1
area 0.0.0.0
  network 10.1.123.0 0.0.0.255
  network 33.1.1.1 0.0.0.0
#
return
[Huawei]dis cu inter s 1/0/0
[V200R003C00]
#
interface Serial1/0/0
link-protocol fr
fr map ip 10.1.123.1 301 broadcast
fr map ip 10.1.123.2 301
ip address 10.1.123.3 255.255.255.0
ospf network-type broadcast
#
return
[Huawei]>dis ospf inter s1/0/0
        ^
Error: Unrecognized command found at '^' position.
[Huawei]dis ospf inter s1/0/0

OSPF Process 1 with Router ID 33.1.1.1
Interfaces


Interface: 10.1.123.3 (Serial1/0/0)
Cost: 48      State: BDR       Type: Broadcast    MTU: 1500  
Priority: 1
Designated Router: 10.1.123.1
Backup Designated Router: 10.1.123.3
Timers: Hello 10 , Dead 40 , Poll  120 , Retransmit 5 , Transmit Delay 1
[Huawei]dis ospf peer bri

OSPF Process 1 with Router ID 33.1.1.1
  Peer Statistic Information
----------------------------------------------------------------------------
Area Id          Interface                        Neighbor id      State   
0.0.0.0          Serial1/0/0                      11.1.1.1         Full        
----------------------------------------------------------------------------
[Huawei] dis ospf brief

OSPF Process 1 with Router ID 33.1.1.1
OSPF Protocol Information

RouterID: 33.1.1.1         Border Router:
Multi-VPN-Instance is not enabled
Global DS-TE Mode: Non-Standard IETF Mode
Graceful-restart capability: disabled
Helper support capability  : not configured
Applications Supported: MPLS Traffic-Engineering
Spf-schedule-interval: max 10000ms, start 500ms, hold 1000ms
Default ASE parameters: Metric: 1 Tag: 1 Type: 2
Route Preference: 10
ASE Route Preference: 150
SPF Computation Count: 89   
RFC 1583 Compatible
Retransmission limitation is disabled
Area Count: 1   Nssa Area Count: 0
ExChange/Loading Neighbors: 0
Process total up interface count: 2
Process valid up interface count: 1

Area: 0.0.0.0          (MPLS TE not enabled)
Authtype: None   Area flag: Normal
SPF scheduled Count: 89   
ExChange/Loading Neighbors: 0
Router ID conflict state: Normal
Area interface up count: 2

Interface: 33.1.1.1 (LoopBack0)
Cost: 0       State: P-2-P     Type: P2P       MTU: 1500  
Timers: Hello 10 , Dead 40 , Poll  120 , Retransmit 5 , Transmit Delay 1

Interface: 10.1.123.3 (Serial1/0/0)
Cost: 48      State: BDR       Type: Broadcast    MTU: 1500  
Priority: 1
Designated Router: 10.1.123.1
Backup Designated Router: 10.1.123.3
Timers: Hello 10 , Dead 40 , Poll  120 , Retransmit 5 , Transmit Delay 1
[Huawei]dis ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
         Destinations : 12       Routes : 12      

Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface

     10.1.123.0/24  Direct  0    0           D   10.1.123.3      Serial1/0/0
     10.1.123.1/32  Direct  0    0           D   10.1.123.1      Serial1/0/0
     10.1.123.2/32  Direct  0    0           D   10.1.123.2      Serial1/0/0
     10.1.123.3/32  Direct  0    0           D   127.0.0.1       Serial1/0/0
   10.1.123.255/32  Direct  0    0           D   127.0.0.1       Serial1/0/0
       11.1.1.1/32  OSPF    10   48          D   10.1.123.1      Serial1/0/0
       22.1.1.1/32  OSPF    10   48          D   10.1.123.2      Serial1/0/0
       33.1.1.1/32  Direct  0    0           D   127.0.0.1       LoopBack0
      127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0
      127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0

[Huawei]dis ip routing-table pr ospf
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Public routing table : OSPF
         Destinations : 2        Routes : 2        

OSPF routing table status : <Active>
         Destinations : 2        Routes : 2

Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface

       11.1.1.1/32  OSPF    10   48          D   10.1.123.1      Serial1/0/0
       22.1.1.1/32  OSPF    10   48          D   10.1.123.2      Serial1/0/0

OSPF routing table status : <Inactive>
         Destinations : 0        Routes : 0