1、实验测试拓扑
2、实验目的
验证MED本地有效，不可传递
3、实验配置
R1:
<r1>display current-configuration
[V200R003C00]
#
sysname r1
#
snmp-agent local-engineid 800007DB03000000000000
snmp-agent
#
clock timezone China-Standard-Time minus 08:00:00
#
portal local-server load portalpage.zip
#
drop illegal-mac alarm
#
set cpu-usage threshold 80 restore 75
#
aaa
authentication-scheme default
authorization-scheme default
accounting-scheme default
domain default
domain default_admin
local-user admin password cipher %$%$K8m.Nt84DZ}e#<0`8bmE3Uw}%$%$
local-user admin service-type http
#
firewall zone Local
priority 15
#
interface GigabitEthernet0/0/0
ip address 10.1.1.1 255.255.255.0
#
interface GigabitEthernet0/0/1
#
interface GigabitEthernet0/0/2
#
interface NULL0
#
interface LoopBack0
ip address 192.168.1.1 255.255.255.0
#
bgp 100
peer 10.1.1.2 as-number 200
peer 10.1.1.2 ebgp-max-hop 2
#
ipv4-family unicast
undo synchronization
network 192.168.1.0
peer 10.1.1.2 enable
#
ipv6-family unicast
undo synchronization
#
user-interface con 0
authentication-mode password
user-interface vty 0 4
user-interface vty 16 20
#
wlan ac
#
return
<r1>
R2:
<r2>display current-configuration
[V200R003C00]
#
sysname r2
#
snmp-agent local-engineid 800007DB03000000000000
snmp-agent
#
clock timezone China-Standard-Time minus 08:00:00
#
portal local-server load portalpage.zip
#
drop illegal-mac alarm
#
set cpu-usage threshold 80 restore 75
#
aaa
authentication-scheme default
authorization-scheme default
accounting-scheme default
domain default
domain default_admin
local-user admin password cipher %$%$K8m.Nt84DZ}e#<0`8bmE3Uw}%$%$
local-user admin service-type http
#
isis 100
is-level level-2
cost-style wide
network-entity 49.0001.0020.0200.2002.00
#
firewall zone Local
priority 15
#
interface GigabitEthernet0/0/0
ip address 10.1.1.2 255.255.255.0
isis enable 100
#
interface GigabitEthernet0/0/1
ip address 20.1.1.1 255.255.255.0
isis enable 100
#
interface GigabitEthernet0/0/2
ip address 30.1.1.1 255.255.255.0
isis enable 100
#
interface NULL0
#
interface LoopBack0
ip address 2.2.2.2 255.255.255.255
isis enable 100
#
bgp 200
peer 5.5.5.5 as-number 200
peer 5.5.5.5 connect-interface LoopBack0
peer 10.1.1.1 as-number 100
#
ipv4-family unicast
undo synchronization
peer 5.5.5.5 enable
peer 10.1.1.1 enable
peer 10.1.1.1 next-hop-local
#
user-interface con 0
authentication-mode password
user-interface vty 0 4
user-interface vty 16 20
#
wlan ac
#
return
<r2>
R3:
<r3>display current-configuration
[V200R003C00]
#
sysname r3
#
snmp-agent local-engineid 800007DB03000000000000
snmp-agent
#
clock timezone China-Standard-Time minus 08:00:00
#
portal local-server load portalpage.zip
#
drop illegal-mac alarm
#
set cpu-usage threshold 80 restore 75
#
aaa
authentication-scheme default
authorization-scheme default
accounting-scheme default
domain default
domain default_admin
local-user admin password cipher %$%$K8m.Nt84DZ}e#<0`8bmE3Uw}%$%$
local-user admin service-type http
#
isis 100
is-level level-2
cost-style wide
network-entity 49.0001.0030.0300.3003.00
#
firewall zone Local
priority 15
#
interface GigabitEthernet0/0/0
ip address 20.1.1.2 255.255.255.0
isis enable 100
#
interface GigabitEthernet0/0/1
ip address 40.1.1.1 255.255.255.0
isis enable 100
#
interface GigabitEthernet0/0/2
#
interface NULL0
#
interface LoopBack0
ip address 3.3.3.3 255.255.255.255
isis enable 100
#
bgp 200
router-id 3.3.3.3
peer 5.5.5.5 as-number 200
peer 5.5.5.5 connect-interface LoopBack0
#
ipv4-family unicast
undo synchronization
peer 5.5.5.5 enable
#
user-interface con 0
authentication-mode password
user-interface vty 0 4
user-interface vty 16 20
#
wlan ac
#
return
<r3>
R4:
<r4>display current-configuration
[V200R003C00]
#
sysname r4
#
snmp-agent local-engineid 800007DB03000000000000
snmp-agent
#
clock timezone China-Standard-Time minus 08:00:00
#
portal local-server load portalpage.zip
#
drop illegal-mac alarm
#
set cpu-usage threshold 80 restore 75
#
aaa
authentication-scheme default
authorization-scheme default
accounting-scheme default
domain default
domain default_admin
local-user admin password cipher %$%$K8m.Nt84DZ}e#<0`8bmE3Uw}%$%$
local-user admin service-type http
#
isis 100
is-level level-2
cost-style wide
network-entity 49.0001.0040.0400.4004.00
#
firewall zone Local
priority 15
#
interface GigabitEthernet0/0/0
ip address 40.1.1.2 255.255.255.0
isis enable 100
#
interface GigabitEthernet0/0/1
ip address 50.1.1.2 255.255.255.0
isis enable 100
#
interface GigabitEthernet0/0/2
ip address 60.1.1.1 255.255.255.0
isis enable 100
#
interface NULL0
#
interface LoopBack0
ip address 4.4.4.4 255.255.255.255
isis enable 100
#
bgp 200
peer 5.5.5.5 as-number 200
peer 5.5.5.5 connect-interface LoopBack0
peer 60.1.1.2 as-number 300
#
ipv4-family unicast
undo synchronization
peer 5.5.5.5 enable
peer 60.1.1.2 enable
peer 60.1.1.2 next-hop-local
#
user-interface con 0
authentication-mode password
user-interface vty 0 4
user-interface vty 16 20
#
wlan ac
#
return
<r4>
R5:
<r5>display current-configuration
[V200R003C00]
#
sysname r5
#
snmp-agent local-engineid 800007DB03000000000000
snmp-agent
#
clock timezone China-Standard-Time minus 08:00:00
#
portal local-server load portalpage.zip
#
drop illegal-mac alarm
#
set cpu-usage threshold 80 restore 75
#
aaa
authentication-scheme default
authorization-scheme default
accounting-scheme default
domain default
domain default_admin
local-user admin password cipher %$%$K8m.Nt84DZ}e#<0`8bmE3Uw}%$%$
local-user admin service-type http
#
isis 100
is-level level-2
cost-style wide
network-entity 49.0001.0050.0500.5005.00
#
firewall zone Local
priority 15
#
interface GigabitEthernet0/0/0
ip address 30.1.1.2 255.255.255.0
isis enable 100
#
interface GigabitEthernet0/0/1
ip address 50.1.1.1 255.255.255.0
isis enable 100
#
interface GigabitEthernet0/0/2
#
interface NULL0
#
interface LoopBack0
ip address 5.5.5.5 255.255.255.255
isis enable 100
#
bgp 200
router-id 5.5.5.5
peer 2.2.2.2 as-number 200
peer 2.2.2.2 connect-interface LoopBack0
peer 3.3.3.3 as-number 200
peer 3.3.3.3 connect-interface LoopBack0
peer 4.4.4.4 as-number 200
peer 4.4.4.4 connect-interface LoopBack0
#
ipv4-family unicast
undo synchronization
peer 2.2.2.2 enable
peer 2.2.2.2 reflect-client
peer 3.3.3.3 enable
peer 3.3.3.3 reflect-client
peer 4.4.4.4 enable
peer 4.4.4.4 reflect-client
#
user-interface con 0
authentication-mode password
user-interface vty 0 4
user-interface vty 16 20
#
wlan ac
#
return
<r5>
R6
<r6>display current-configuration
[V200R003C00]
#
sysname r6
#
snmp-agent local-engineid 800007DB03000000000000
snmp-agent
#
clock timezone China-Standard-Time minus 08:00:00
#
portal local-server load portalpage.zip
#
drop illegal-mac alarm
#
set cpu-usage threshold 80 restore 75
#
aaa
authentication-scheme default
authorization-scheme default
accounting-scheme default
domain default
domain default_admin
local-user admin password cipher %$%$K8m.Nt84DZ}e#<0`8bmE3Uw}%$%$
local-user admin service-type http
#
firewall zone Local
priority 15
#
interface GigabitEthernet0/0/0
ip address 60.1.1.2 255.255.255.0
#
interface GigabitEthernet0/0/1
#
interface GigabitEthernet0/0/2
#
interface NULL0
#
interface LoopBack0
ip address 172.16.1.1 255.255.255.0
#
bgp 300
router-id 6.6.6.6
peer 60.1.1.1 as-number 200
peer 60.1.1.1 ebgp-max-hop 2
#
ipv4-family unicast
undo synchronization
network 172.16.1.0 255.255.255.0
peer 60.1.1.1 enable
peer 60.1.1.1 route-policy in export
#
route-policy in permit node 10
if-match ip-prefix MED
apply cost 100
#
ip ip-prefix MED index 10 permit 172.16.1.0 24
#
user-interface con 0
authentication-mode password
user-interface vty 0 4
user-interface vty 16 20
#
wlan ac
#
return
<r6>
4、核心配置
第一步：筛选感应兴趣流
ip ip-prefix MED index 10 permit 172.16.1.0 24
第二步：匹配路由策略
route-policy in permit node 10
if-match ip-prefix MED
apply cost 100
第三步：应用路由策略
bgp 300
router-id 6.6.6.6
peer 60.1.1.1 as-number 200
peer 60.1.1.1 ebgp-max-hop 2
#
ipv4-family unicast
undo synchronization
network 172.16.1.0 255.255.255.0
peer 60.1.1.1 enable
peer 60.1.1.1 route-policy in export
5、实验结果
MED属性只在本区域和相邻区域有效，并非全局有效
