目录
HCIP之BGP的选路原则
BGP的选路原则 — 前提 — 丢弃所有不可用的路由系信息
实验
R1基本配置
[R1]display ip interface brief
*down: administratively down
^down: standby
(l): loopback
(s): spoofing
The number of interface that is UP in Physical is 4
The number of interface that is DOWN in Physical is 1
The number of interface that is UP in Protocol is 4
The number of interface that is DOWN in Protocol is 1
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 12.0.0.1/24 up up
GigabitEthernet0/0/1 13.0.0.1/24 up up
GigabitEthernet0/0/2 unassigned down down
LoopBack0 1.1.1.1/24 up up(s)
NULL0 unassigned up up(s)
[R1]
R2基本配置
[R2]display ip interface brief
*down: administratively down
^down: standby
(l): loopback
(s): spoofing
The number of interface that is UP in Physical is 4
The number of interface that is DOWN in Physical is 1
The number of interface that is UP in Protocol is 4
The number of interface that is DOWN in Protocol is 1
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 12.0.0.2/24 up up
GigabitEthernet0/0/1 24.0.0.1/24 up up
GigabitEthernet0/0/2 unassigned down down
LoopBack0 2.2.2.2/24 up up(s)
NULL0 unassigned up up(s)
[R2]
R3基本配置
[R3]display ip interface brief
*down: administratively down
^down: standby
(l): loopback
(s): spoofing
The number of interface that is UP in Physical is 4
The number of interface that is DOWN in Physical is 1
The number of interface that is UP in Protocol is 4
The number of interface that is DOWN in Protocol is 1
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 13.0.0.2/24 up up
GigabitEthernet0/0/1 34.0.0.1/24 up up
GigabitEthernet0/0/2 unassigned down down
LoopBack0 3.3.3.3/24 up up(s)
NULL0 unassigned up up(s)
[R3]
R4基本配置
[R4]display ip interface brief
*down: administratively down
^down: standby
(l): loopback
(s): spoofing
The number of interface that is UP in Physical is 5
The number of interface that is DOWN in Physical is 0
The number of interface that is UP in Protocol is 5
The number of interface that is DOWN in Protocol is 0
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 24.0.0.2/24 up up
GigabitEthernet0/0/1 34.0.0.2/24 up up
GigabitEthernet0/0/2 45.0.0.1/24 up up
LoopBack0 4.4.4.4/24 up up(s)
NULL0 unassigned up up(s)
[R4]\
R5基本配置
[R5]display ip interface brief
*down: administratively down
^down: standby
(l): loopback
(s): spoofing
The number of interface that is UP in Physical is 3
The number of interface that is DOWN in Physical is 2
The number of interface that is UP in Protocol is 3
The number of interface that is DOWN in Protocol is 2
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 45.0.0.2/24 up up
GigabitEthernet0/0/1 unassigned down down
GigabitEthernet0/0/2 unassigned down down
LoopBack0 5.5.5.5/24 up up(s)
NULL0 unassigned up up(s)
[R5]
ospf区域配置
R2
[R2]display ip routing-table protocol ospf
Route Flags: R - relay, D - download to fib
Public routing table : OSPF
Destinations : 3 Routes : 3
OSPF routing table status :
Destinations : 3 Routes : 3
Destination/Mask Proto Pre Cost Flags NextHop Interface
2.2.2.2/32 OSPF 10 2 D 34.0.0.2 GigabitEthernet
0/0/1
4.4.4.4/32 OSPF 10 1 D 34.0.0.2 GigabitEthernet
0/0/1
24.0.0.0/24 OSPF 10 2 D 34.0.0.2 GigabitEthernet
0/0/1
OSPF routing table status :
Destinations : 0 Routes : 0
[R3]
R4
`vbnet
[R4]display ip routing-table protocol ospf
Route Flags: R – relay, D – download to fib
Original: https://blog.csdn.net/qq_57289939/article/details/127820528
Author: White乄joker
Title: HCIP之BGP的选路原则
原创文章受到原创版权保护。转载请注明出处：https://www.johngo689.com/660205/
转载文章受原作者版权保护。转载请注明原作者出处！