《华为认证》SR-MPLS-TE

实验需求：运营商网络配置SR-MPLS-TE，实现CE1和CE2之间的互访流量通过PE1-P2-P4-PE3。

步骤1：配置运营商网络的IGP协议（本实验采用ISIS协议）

PE1：

isis 1

 is-level level-2

 cost-style wide

 network-entity 49.0001.0000.0000.0001.00

interface Ethernet1/0/0

isis enable 1

interface Ethernet1/0/1

isis enable 1

interface LoopBack0

isis enable 1

P2:

isis 1

 is-level level-2

 cost-style wide

 network-entity 49.0001.0000.0000.0002.00

interface Ethernet1/0/0

isis enable 1

interface Ethernet1/0/1

isis enable 1

interface Ethernet1/0/2

isis enable 1

interface LoopBack0

isis enable 1

PE3:

isis 1

 is-level level-2

 cost-style wide

 network-entity 49.0001.0000.0000.0003.00



interface Ethernet1/0/0

isis enable 1

interface Ethernet1/0/1

isis enable 1

interface LoopBack0

isis enable 1

P4:

isis 1

 is-level level-2

 cost-style wide

 network-entity 49.0001.0000.0000.0004.00



interface Ethernet1/0/0

isis enable 1

interface Ethernet1/0/1

isis enable 1

interface Ethernet1/0/2

isis enable 1

interface LoopBack0

isis enable 1

步骤2：开启AS100内的mpls功能。

PE1:

mpls lsr-id  1.1.1.1

mpls

mpls te

P2:

mpls lsr-id  2.2.2.2

mpls

mpls te

PE3:

mpls lsr-id  3.3.3.3

mpls

mpls te

P4

mpls lsr-id  4.4.4.4

mpls

mpls te

步骤3：

PE1:

segment-routing

Isis

segment-routing mpls

segment-routing global-block 16000 16999

interface LoopBack0

 isis enable 1

 isis prefix-sid index 1

P2：

segment-routing

Isis

segment-routing mpls

segment-routing global-block 16000 16999

interface LoopBack0

 isis enable 1

 isis prefix-sid index 2

PE3:

segment-routing

Isis

segment-routing mpls

segment-routing global-block 16000 16999

interface LoopBack0

 isis enable 1

 isis prefix-sid index 3

PE4:

segment-routing

Isis

segment-routing mpls

segment-routing global-block 16000 16999

interface LoopBack0

 isis enable 1

 isis prefix-sid index 4

步骤4：配置SR的显示路径

①配置P2和P4之间互联链路的邻接段SID

P2:

segment-routing

 ipv4 adjacency local-ip-addr 24.1.1.2 remote-ip-addr 24.1.1.4 sid 330000

P4:

segment-routing

 ipv4 adjacency local-ip-addr 24.1.1.4 remote-ip-addr 24.1.1.2 sid 330001

②在ISIS开启mpls te功能

PE1:

Isis

traffic-eng level-2

P2:

Isis

traffic-eng level-2

PE3:

Isis

traffic-eng level-2

P4:

Isis

traffic-eng level-2

③配置显示路径

PE1:

explicit-path pe1-pe3

 next sid label 16002 type prefix

 next sid label 330000 type adjacency

 next sid label 16003 type prefix



interface Tunnel1

 ip address unnumbered interface LoopBack0

 tunnel-protocol mpls te

 destination 3.3.3.3

 mpls te signal-protocol segment-routing

 mpls te tunnel-id 1

 mpls te path explicit-path pe1-pe3

PE3:

explicit-path pe3-pe1

 next sid label 16004 type prefix

 next sid label 330001 type adjacency

 next sid label 16001 type prefix



interface Tunnel1

 ip address unnumbered interface LoopBack0

 tunnel-protocol mpls te

 destination 1.1.1.1

 mpls te signal-protocol segment-routing

 mpls te tunnel-id 1

 mpls te path explicit-path pe3-pe1

步骤5：配置PE之间的MP-BGP邻居

PE1:

bgp 100

 peer 3.3.3.3 as-number 100

 peer 3.3.3.3 connect-interface LoopBack0

 ipv4-family v4

  policy -target

  peer 3.3.3.3 enable

PE4:

bgp 100

 peer 1.1.1.1 as-number 100

 peer 1.1.1.1 connect-interface LoopBack0

ipv4-family v4

  policy -target

  peer 1.1.1.1 enable

步骤6：配置PE和CE之间的BGP邻居

PE1:

ip -instance 1

 ipv4-family

  route-distinguisher 100:1

  -target 100:1 export-extcommunity

  -target 100:1 import-extcommunity



interface Ethernet1/0/2

ip binding -instance 1

 ip address 10.0.11.1 255.255.255.0



bgp 100

ipv4-family -instance 1

  peer 10.0.11.2 as-number 200

PE3:

ip -instance 1

 ipv4-family

  route-distinguisher 100:2

  -target 100:1 export-extcommunity

  -target 100:1 import-extcommunity





interface Ethernet1/0/2

ip binding -instance 1

 ip address 10.0.24.1 255.255.255.0



bgp 100

ipv4-family -instance 1

  peer 10.0.24.2 as-number 300

CE1:

bgp 200

 peer 10.0.11.1 as-number 100

  network 10.10.10.10 255.255.255.255

CE2:

bgp 300

 peer 10.0.24.1 as-number 100

  network 20.20.20.20 255.255.255.255

步骤7：配置隧道选择SR-te

PE1:

tunnel-policy 1

 tunnel select-seq sr-te load-balance-number 1

ip -instance 1

ipv4-family

  tnl-policy 1

PE3:

tunnel-policy 1

 tunnel select-seq sr-te load-balance-number 1

ip -instance 1

 ipv4-family

  tnl-policy 1