c.【华为设备mstp+vrrp 配置】
注意:私有AS号64512-65535,其它区域需要去申请。
1 丢弃下一跳不可达的路由
**2 优选Preference_Value值(首选值)最高的路由(私有,本地有效)
**3 优选本地优先级(Local_Pre)最高的路由
4 优选手动聚合>自动聚合>network>import>从对等体学到
**5 优选AS_Path短的路由
**6 起源类型Original : I>E>?
**7 对于来自同一AS的路由,优选MED值小的。
8 优选从EBGP学来的路由(EBGP>IBGP)
9 优选AS内部IGP的Metric最小的路由(到达下一跳的IGP 开销)
----可以开启负载分担----(bgp路由表不体现 路由会显示)
10 优选Cluster_List (RR反射器:RR的router id)最短的路由(经过RR的
数量少)
11 优选Orginator_ID (RR反射器:路由起源router id )最小的路由(路由
进入某AS时,起始路由器router id)
12 优选Router_ID最小的路由器发布的路由
13 优选具有较小IP地址的邻居学来的路由
refresh bgp all import
refresh bgp all export
R1:
<R1>dis ip int b
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 200.1.13.1/25 up up
GigabitEthernet0/0/1 10.2.16.1/25 up up
GigabitEthernet0/0/2 10.2.12.1/25 up up
LoopBack0 10.2.1.1/24 up up(s)
R2:
<R2>dis ip int b
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 200.1.25.2/25 up up
GigabitEthernet0/0/1 10.2.26.2/25 up up
GigabitEthernet0/0/2 10.2.12.2/25 up up
LoopBack0 10.2.2.2/24 up up(s)
NULL0 unassigned up up(s)
R3:
<R3>dis ip int b
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 200.1.13.3/25 up up
GigabitEthernet0/0/1 10.1.35.3/25 up up
GigabitEthernet0/0/2 10.1.34.3/25 up up
LoopBack0 10.1.3.3/24 up up(s)
NULL0 unassigned up up(s)
R4:
<R4>dis ip int b
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 10.1.34.4/25 up up
GigabitEthernet0/0/1 10.1.45.4/25 up up
GigabitEthernet0/0/2 unassigned down down
LoopBack0 10.1.4.4/24 up up(s)
LoopBack1 10.1.7.4/24 up up(s)
NULL0 unassigned up up(s)
-----------------------------------------------------------------------
[R4-LoopBack0]int loo 0
[R4-LoopBack0]dis this
interface LoopBack0
ip address 10.1.4.4 255.255.255.0
ospf network-type broadcast #将本地环回Ip路由由32掩码改为24位
[R4-LoopBack0]int loo 1
interface LoopBack1
ip address 10.1.7.4 255.255.255.0
ospf network-type broadcast #将本地环回Ip路由由32掩码改为24位
R5:
<R5>dis ip int b
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 200.1.25.5/25 up up
GigabitEthernet0/0/1 10.1.35.5/25 up up
GigabitEthernet0/0/2 10.1.45.5/25 up up
LoopBack0 10.1.5.5/24 up up(s)
NULL0 unassigned up up(s)
R6:
<R6>dis ip int b
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 10.2.16.6/25 up up
GigabitEthernet0/0/1 10.2.26.6/25 up up
GigabitEthernet0/0/2 unassigned down down
LoopBack0 10.2.6.6/24 up up(s)
LoopBack1 10.2.7.6/24 up up(s)
NULL0 unassigned up up(s)
as 200
R1:
<R1>dis ospf peer b
----------------------------------------------------------------------------
Area Id Interface Neighbor id State
0.0.0.0 GigabitEthernet0/0/1 10.2.6.6 Full
0.0.0.0 GigabitEthernet0/0/2 10.2.2.2 Full
----------------------------------------------------------------------------
[R1]ospf 1
[R1-ospf-1]dis this
ospf 1
area 0.0.0.0
network 10.2.1.1 0.0.0.0
network 10.2.12.1 0.0.0.0
network 10.2.16.1 0.0.0.0
R2:
<R2>dis ospf peer b
----------------------------------------------------------------------------
Area Id Interface Neighbor id State
0.0.0.0 GigabitEthernet0/0/2 10.2.1.1 Full
0.0.0.0 GigabitEthernet0/0/1 10.2.6.6 Full
----------------------------------------------------------------------------
[R2-ospf-1]dis this
ospf 1
area 0.0.0.0
network 10.2.2.2 0.0.0.0
network 10.2.12.2 0.0.0.0
network 10.2.26.2 0.0.0.0
R6:
<R6>dis ospf peer b
----------------------------------------------------------------------------
Area Id Interface Neighbor id State
0.0.0.0 GigabitEthernet0/0/0 10.2.1.1 Full
0.0.0.0 GigabitEthernet0/0/1 10.2.2.2 Full
----------------------------------------------------------------------------
[R6-ospf-1]dis this
ospf 1
area 0.0.0.0
network 10.2.6.6 0.0.0.0
network 10.2.7.6 0.0.0.0
network 10.2.16.6 0.0.0.0
network 10.2.26.6 0.0.0.0
as 100
R3:
<R3>dis ospf peer b
----------------------------------------------------------------------------
Area Id Interface Neighbor id State
0.0.0.0 GigabitEthernet0/0/2 10.1.4.4 Full
0.0.0.0 GigabitEthernet0/0/1 10.1.5.5 Full
----------------------------------------------------------------------------
[R3-ospf-1]dis this
ospf 1
area 0.0.0.0
network 10.1.3.3 0.0.0.0
network 10.1.34.3 0.0.0.0
network 10.1.35.3 0.0.0.0
R4:
<R4>dis ospf peer b
----------------------------------------------------------------------------
Area Id Interface Neighbor id State
0.0.0.0 GigabitEthernet0/0/0 10.1.3.3 Full
0.0.0.0 GigabitEthernet0/0/1 10.1.5.5 Full
----------------------------------------------------------------------------
[R4-ospf-1]dis this
ospf 1
area 0.0.0.0
network 10.1.4.4 0.0.0.0
network 10.1.7.4 0.0.0.0
network 10.1.34.4 0.0.0.0
network 10.1.45.4 0.0.0.0
R5:
<R5>dis ospf peer b
----------------------------------------------------------------------------
Area Id Interface Neighbor id State
0.0.0.0 GigabitEthernet0/0/1 10.1.3.3 Full
0.0.0.0 GigabitEthernet0/0/2 10.1.4.4 Full
----------------------------------------------------------------------------
[R5-ospf-1]dis this
ospf 1
area 0.0.0.0
network 10.1.5.5 0.0.0.0
network 10.1.35.5 0.0.0.0
network 10.1.45.5 0.0.0.0
as 200
R1:
[R1]bgp 200
[R1-bgp]dis this
bgp 200
peer 10.2.2.2 as-number 200
peer 10.2.2.2 connect-interface LoopBack0
peer 10.2.6.6 as-number 200
peer 10.2.6.6 connect-interface LoopBack0
peer 200.1.13.3 as-number 100
#
ipv4-family unicast
undo synchronization
peer 10.2.2.2 enable
peer 10.2.2.2 next-hop-local
peer 10.2.6.6 enable
peer 10.2.6.6 next-hop-local
peer 200.1.13.3 enable
------------------------------------------------------------------------------------
[R1-bgp]dis bgp peer
BGP local router ID : 10.2.1.1
Local AS number : 200
Total number of peers : 3 Peers in established state : 3
Peer V AS MsgRcvd MsgSent OutQ Up/Down State PrefRcv
10.2.2.2 4 200 104 106 0 01:42:26 Established 0
10.2.6.6 4 200 105 105 0 01:43:38 Established 0
200.1.13.3 4 100 110 110 0 01:48:22 Established 0
R2:
[R2]bgp 200
[R2-bgp]dis this
bgp 200
peer 10.2.1.1 as-number 200
peer 10.2.1.1 connect-interface LoopBack0
peer 10.2.6.6 as-number 200
peer 10.2.6.6 connect-interface LoopBack0
peer 200.1.25.5 as-number 100
#
ipv4-family unicast
undo synchronization
peer 10.2.1.1 enable
peer 10.2.1.1 next-hop-local
peer 10.2.6.6 enable
peer 10.2.6.6 next-hop-local
peer 200.1.25.5 enable
------------------------------------------------------------------------------------
[R2-bgp]dis bgp peer
BGP local router ID : 10.2.2.2
Local AS number : 200
Total number of peers : 3 Peers in established state : 3
Peer V AS MsgRcvd MsgSent OutQ Up/Down State PrefRcv
10.2.1.1 4 200 105 105 0 01:43:35 Established 0
10.2.6.6 4 200 105 105 0 01:43:41 Established 0
200.1.25.5 4 100 109 109 0 01:47:10 Established 0
R6:
[R6]bgp 200
[R6-bgp]dis this
bgp 200
peer 10.2.1.1 as-number 200
peer 10.2.1.1 connect-interface LoopBack0
peer 10.2.2.2 as-number 200
peer 10.2.2.2 connect-interface LoopBack0
#
ipv4-family unicast
undo synchronization
peer 10.2.1.1 enable
peer 10.2.2.2 enable
------------------------------------------------------------------------------------
[R6-bgp]dis bgp peer
BGP local router ID : 10.2.6.6
Local AS number : 200
Total number of peers : 2 Peers in established state : 2
Peer V AS MsgRcvd MsgSent OutQ Up/Down State PrefRcv
10.2.1.1 4 200 107 108 0 01:45:33 Established 0
10.2.2.2 4 200 106 107 0 01:44:26 Established 0
as 100
R3:
[R3]•bgp 100
[R3-bgp]dis this
bgp 100
peer 10.1.4.4 as-number 100
peer 10.1.4.4 connect-interface LoopBack0
peer 10.1.5.5 as-number 100
peer 10.1.5.5 connect-interface LoopBack0
peer 200.1.13.1 as-number 200
#
ipv4-family unicast
undo synchronization
peer 10.1.4.4 enable
peer 10.1.4.4 next-hop-local
peer 10.1.5.5 enable
peer 10.1.5.5 next-hop-local
peer 200.1.13.1 enable
------------------------------------------------------------------------------------
[R3-bgp]dis bgp peer
BGP local router ID : 10.1.3.3
Local AS number : 100
Total number of peers : 3 Peers in established state : 3
Peer V AS MsgRcvd MsgSent OutQ Up/Down State PrefRcv
10.1.4.4 4 100 124 124 0 02:02:41 Established 0
10.1.5.5 4 100 123 124 0 02:01:07 Established 0
200.1.13.1 4 200 114 115 0 01:52:48 Established 0
R4:
[R4]bgp 100
[R4-bgp]dis this
bgp 100
peer 10.1.3.3 as-number 100
peer 10.1.3.3 connect-interface LoopBack0
peer 10.1.5.5 as-number 100
peer 10.1.5.5 connect-interface LoopBack0
#
ipv4-family unicast
undo synchronization
peer 10.1.3.3 enable
peer 10.1.5.5 enable
------------------------------------------------------------------------------------
<R4>dis bgp peer
BGP local router ID : 10.1.4.4
Local AS number : 100
Total number of peers : 2 Peers in established state : 2
Peer V AS MsgRcvd MsgSent OutQ Up/Down State PrefRcv
10.1.3.3 4 100 125 128 0 02:03:40 Established 0
10.1.5.5 4 100 123 124 0 02:02:00 Established 0
R5:
[R5]bgp 100
[R5-bgp]dis this
bgp 100
peer 10.1.3.3 as-number 100
peer 10.1.3.3 connect-interface LoopBack0
peer 10.1.4.4 as-number 100
peer 10.1.4.4 connect-interface LoopBack0
peer 200.1.25.2 as-number 200
#
ipv4-family unicast
undo synchronization
peer 10.1.3.3 enable
peer 10.1.3.3 next-hop-local
peer 10.1.4.4 enable
peer 10.1.4.4 next-hop-local
peer 200.1.25.2 enable
#
------------------------------------------------------------------------------------
<R5>dis bgp peer
BGP local router ID : 10.1.5.5
Local AS number : 100
Total number of peers : 3 Peers in established state : 3
Peer V AS MsgRcvd MsgSent OutQ Up/Down State PrefRcv
10.1.3.3 4 100 125 125 0 02:03:40 Established 0
10.1.4.4 4 100 125 125 0 02:03:34 Established 0
200.1.25.2 4 200 114 115 0 01:52:59 Established 0
R3:
ip route-static 10.1.0.0 255.255.0.0 NULL0
[R3-bgp]network 10.1.0.0 16
R5:
ip route-static 10.1.0.0 255.255.0.0 NULL0
[R3-bgp]network 10.1.0.0 16
R3:
[R3-bgp]net 10.1.4.0 24
[R3-bgp]net 10.1.7.0 24
[R3-bgp]network 10.1.0.0 16
[R3]dis bgp routing-table
BGP Local router ID is 10.1.3.3
Status codes: * - valid, > - best, d - damped,
h - history, i - internal, s - suppressed, S - Stale
Origin : i - IGP, e - EGP, ? - incomplete
Total Number of Routes: 6
Network NextHop MED LocPrf PrefVal Path/Ogn
*> 10.1.0.0/16 0.0.0.0 0 0 i
* i 10.1.5.5 0 100 0 i
*> 10.1.4.0/24 0.0.0.0 1 0 i
* i 10.1.5.5 1 100 0 i
*> 10.1.7.0/24 0.0.0.0 1 0 i
* i
R4:
[R3-bgp]net 10.1.4.0 24
[R3-bgp]net 10.1.7.0 24
[R3-bgp]network 10.1.0.0 16
[R5-bgp]dis bgp routing-table
BGP Local router ID is 10.1.5.5
Status codes: * - valid, > - best, d - damped,
h - history, i - internal, s - suppressed, S - Stale
Origin : i - IGP, e - EGP, ? - incomplete
Total Number of Routes: 6
Network NextHop MED LocPrf PrefVal Path/Ogn
*> 10.1.0.0/16 0.0.0.0 0 0 i
* i 10.1.3.3 0 100 0 i
*> 10.1.4.0/24 0.0.0.0 1 0 i
* i 10.1.3.3 1 100 0 i
*> 10.1.7.0/24 0.0.0.0 1 0 i
* i
R3/R5
ip ip-prefix Bangong_server permit 10.1.4.0 24 greater-equal 24 less-equal 24
ip ip-prefix Yewu_server permit 10.1.7.0 24 greater-equal 24 less-equal 24
ip ip-prefix Other_server permit 10.1.0.0 16 greater-equal 16 less-equal 16
ip ip-prefix Yewu_dishi1 permit 10.2.7.0 24 greater-equal 24 less-equal 24
ip ip-prefix Bangong_dishi1 permit 10.2.6.0 24 greater-equal 24 less-equal 24
ip ip-prefix Other_dishi1 permit 10.2.0.0 16 greater-equal 16 less-equal 16
R3:
[R3]route-policy MED permit node 10
[R3-route-policy]dis this
route-policy MED permit node 10
if-match ip-prefix Bangong_server
apply cost 180
#
route-policy MED permit node 20
if-match ip-prefix Other_server
apply cost 180
#
route-policy MED permit node 100
#
bgp 100
[R3-bgp]peer 200.1.13.1 route-policy MED export
-----------------------------------------------------------------------------
route-policy AS_Path permit node 10
if-match ip-prefix Bangong_dishi1
apply as-path 200 200 additive
#
bgp 100
peer 200.1.13.1 route-policy AS_Path import
R5:
[R5-route-policy]dis this
#
route-policy MED permit node 10
if-match ip-prefix Yewu_server
apply cost 180
#
route-policy MED permit node 1000
#
bgp 100
peer 200.1.25.2 route-policy MED export
------------------------------------------------------------------------
route-policy AS_Path permit node 10
if-match ip-prefix Yewu_dishi1
apply as-path 200 200 additive
#
bgp 100
peer 200.1.25.2 route-policy AS_Path import
R1/R2: # 修改环回接口为24位俺码#路由宣告
ip route-static 10.2.0.0 255.255.0.0 NULL0
int loo 0
ospf network-type broadcast
int loo 1
ospf network-type broadcast
#
bgp 200
network 10.2.0.0 255.255.0.0
network 10.2.6.0 255.255.255.0
network 10.2.7.0 255.255.255.0
R1:
<R1>dis bgp routing-table
BGP Local router ID is 10.2.1.1
Status codes: * - valid, > - best, d - damped,
h - history, i - internal, s - suppressed, S - Stale
Origin : i - IGP, e - EGP, ? - incomplete
Total Number of Routes: 6
Network NextHop MED LocPrf PrefVal Path/Ogn
*>i 10.1.0.0/16 10.2.2.2 0 100 0 100i
* 200.1.13.3 180 0 100i
*>i 10.1.4.0/24 10.2.2.2 1 100 0 100i
* 200.1.13.3 180 0 100i
*> 10.1.7.0/24 200.1.13.3 1 0 100i
* i 10.2.2.2 1 100 0 100i
R6:
<R6>tracert -a 10.2.6.6 10.1.4.4
traceroute to 10.1.4.4(10.1.4.4), max hops: 30 ,packet length: 40,press CTRL_C
to break
1 10.2.26.2 30 ms 20 ms 20 ms
2 200.1.25.5 20 ms 20 ms 30 ms
3 10.1.45.4 < AS=100 > 40 ms 30 ms 10 ms
终止EBGP 邻居
[R1-bgp]peer 200.1.13.3 ignore
R1/R2/R3/R4 配置osof import bgp type 1, R4/R6不配置BGP
R1/R2/R3/R4 宣告相关路由
import-route bgp type 1
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