1. 配置IP地址
[LSR1-GigabitEthernet0/0/0]ip add 20.1.1.1 24
[LSR1-GigabitEthernet0/0/1]ip add 20.1.6.1 24
[LSR1-LoopBack0]ip add 1.1.1.1 32
[LSR2-GigabitEthernet0/0/1]ip add 20.1.2.2 24
[LSR2-GigabitEthernet0/0/2]ip add 20.1.4.2 24
[LSR2-GigabitEthernet0/0/0]ip add 20.1.1.2 24
[LSR2-LoopBack0]ip add 2.2.2.2 32
[LSR3-Vlanif10]ip add 20.1.7.3 24
[LSR3-GigabitEthernet0/0/0]ip add 20.1.2.3 24
[LSR3-GigabitEthernet0/0/1]ip add 20.1.5.3 24
[LSR3-GigabitEthernet0/0/2]ip add 20.1.3.3 24
[LSR3-GigabitEthernet4/0/0]ip add 20.1.7.3 24
[LSR3-LoopBack0]ip add 3.3.3.3 32
[LSR4-GigabitEthernet0/0/0]ip add 20.1.3.4 24
[LSR4-LoopBack0]ip add 4.4.4.4 32
[LSR5-LoopBack0]ip add 5.5.5.5 32
[LSR5-GigabitEthernet0/0/0]ip add 20.1.4.5 24
[LSR5-GigabitEthernet0/0/1]ip add 20.1.5.5 24
[LSR6-LoopBack0]ip add 6.6.6.6 32
[LSR6-GigabitEthernet0/0/0]ip add 20.1.6.6 24
[LSR6-GigabitEthernet0/0/1]ip add 20.1.7.6 24
2. 配置OSPF
[LSR1]ospf 1
[LSR1-ospf-1]area 0
[LSR1-ospf-1-area-0.0.0.0]network 1.1.1.1 0.0.0.0
[LSR1-ospf-1-area-0.0.0.0]network 20.1.1.0 0.0.0.255
[LSR1-ospf-1-area-0.0.0.0]network 20.1.6.0 0.0.0.255
[LSR2]ospf 1
[LSR2-ospf-1]area 0
[LSR2-ospf-1-area-0.0.0.0]network 2.2.2.2 0.0.0.0
[LSR2-ospf-1-area-0.0.0.0]network 20.1.2.0 0.0.0.255
[LSR2-ospf-1-area-0.0.0.0]network 20.1.4.0 0.0.0.255
[LSR2-ospf-1-area-0.0.0.0]network 20.1.1.0 0.0.0.255
[LSR3]ospf 1
[LSR3-ospf-1]area 0
[LSR3-ospf-1-area-0.0.0.0]network 3.3.3.3 0.0.0.0
[LSR3-ospf-1-area-0.0.0.0]network 20.1.3.0 0.0.0.255
[LSR3-ospf-1-area-0.0.0.0]network 20.1.7.0 0.0.0.255
[LSR3-ospf-1-area-0.0.0.0]network 20.1.5.0 0.0.0.255
[LSR3-ospf-1-area-0.0.0.0]network 20.1.2.0 0.0.0.255
[LSR4]ospf 1
[LSR4-ospf-1]area 0
[LSR4-ospf-1-area-0.0.0.0]network 4.4.4.4 0.0.0.0
[LSR4-ospf-1-area-0.0.0.0]network 20.1.3.0 0.0.0.255
[LSR5]ospf 1
[LSR5-ospf-1]area 0
[LSR5-ospf-1-area-0.0.0.0]network 5.5.5.5 0.0.0.0
[LSR5-ospf-1-area-0.0.0.0]network 20.1.4.0 0.0.0.255
[LSR5-ospf-1-area-0.0.0.0]network 20.1.5.0 0.0.0.255
[LSR6]ospf 1
[LSR6-ospf-1]area 0
[LSR6-ospf-1-area-0.0.0.0]network 6.6.6.6 0.0.0.0
[LSR6-ospf-1-area-0.0.0.0]network 20.1.6.0 0.0.0.255
[LSR6-ospf-1-area-0.0.0.0]network 20.1.7.0 0.0.0.255
3. 配置MPLS基本能力，使能MPLS TE、RSVP-TE和CSPF，需在主隧道和旁路隧道的入节点上使能CSPF
[LSR1]mpls lsr-id 1.1.1.1
[LSR1]mpls
[LSR1-mpls]mpls te
[LSR1-mpls]mpls rsvp-te
[LSR1-mpls]mpls te cspf
[LSR1-GigabitEthernet0/0/0]mpls
[LSR1-GigabitEthernet0/0/0]mpls te
[LSR1-GigabitEthernet0/0/0]mpls rsvp-te
[LSR1-GigabitEthernet0/0/1]mpls
[LSR1-GigabitEthernet0/0/1]mpls te
[LSR1-GigabitEthernet0/0/1]mpls rsvp-te
[LSR2]mpls lsr-id 2.2.2.2
[LSR2]mpls
[LSR2-mpls]mpls te
[LSR2-mpls]mpls te cspf
[LSR2-mpls]mpls rsvp-te
[LSR2-GigabitEthernet0/0/0]mpls
[LSR2-GigabitEthernet0/0/0]mpls te
[LSR2-GigabitEthernet0/0/0]mpls rsvp-te
[LSR2-GigabitEthernet0/0/1]mpls
[LSR2-GigabitEthernet0/0/1]mpls te
[LSR2-GigabitEthernet0/0/1]mpls rsvp-te
[LSR2-GigabitEthernet0/0/2]mpls
[LSR2-GigabitEthernet0/0/2]mpls te
[LSR2-GigabitEthernet0/0/2]mpls rsvp-te
[LSR3]mpls lsr-id 3.3.3.3
[LSR3]mpls
[LSR3-mpls]mpls te
[LSR3-mpls]mpls rsvp-te
[LSR3-GigabitEthernet0/0/0]mpls
[LSR3-GigabitEthernet0/0/0]mpls te
[LSR3-GigabitEthernet0/0/0]mpls rsvp-te
[LSR3-GigabitEthernet0/0/1]mpls
[LSR3-GigabitEthernet0/0/1]mpls te
[LSR3-GigabitEthernet0/0/1]mpls rsvp-te
[LSR3-GigabitEthernet0/0/2]mpls
[LSR3-GigabitEthernet0/0/2]mpls te
[LSR3-GigabitEthernet0/0/2]mpls rsvp-te
[LSR3-GigabitEthernet4/0/0]mpls
[LSR3-GigabitEthernet4/0/0]mpls te
[LSR3-GigabitEthernet4/0/0]mpls rsvp-te
[LSR4]mpls lsr-id 4.4.4.4
[LSR4]mpls
[LSR4-mpls]mpls te
[LSR4-mpls]mpls rsvp-te
[LSR4-GigabitEthernet0/0/0]mpls
[LSR4-GigabitEthernet0/0/0]mpls te
[LSR4-GigabitEthernet0/0/0]mpls rsvp-te
[LSR5]mpls lsr-id 5.5.5.5
[LSR5]mpls
[LSR5-mpls]mpls te
[LSR5-mpls]mpls rsvp-te
[LSR5-GigabitEthernet0/0/0]mpls
[LSR5-GigabitEthernet0/0/0]mpls te
[LSR5-GigabitEthernet0/0/0]mpls rsvp-te
[LSR5-GigabitEthernet0/0/1]mpls
[LSR5-GigabitEthernet0/0/1]mpls te
[LSR5-GigabitEthernet0/0/1]mpls rsvp-te
[LSR6]mpls lsr-id 6.6.6.6
[LSR6]mpls
[LSR6-mpls]mpls te
[LSR6-mpls]mpls rs
[LSR6-mpls]mpls rsvp-te
[LSR6-GigabitEthernet0/0/0]mpls
[LSR6-GigabitEthernet0/0/0]mpls te
[LSR6-GigabitEthernet0/0/0]mpls rsvp-te
[LSR6-GigabitEthernet0/0/1]mpls
[LSR6-GigabitEthernet0/0/1]mpls te
[LSR6-GigabitEthernet0/0/1]mpls rsvp-te
4. 配置OSPF TE
[LSR1]ospf
[LSR1-ospf-1]opaque-capability enable
[LSR1-ospf-1]area 0
[LSR1-ospf-1-area-0.0.0.0]mpls-te enable
[LSR2]ospf
[LSR2-ospf-1]opaque-capability enable
[LSR2-ospf-1]area 0
[LSR2-ospf-1-area-0.0.0.0]mpls-te enable
[LSR3]ospf
[LSR3-ospf-1]opaque-capability enable
[LSR3-ospf-1]area 0
[LSR3-ospf-1-area-0.0.0.0]mpls-te enable
[LSR4]ospf
[LSR4-ospf-1]opaque-capability enable
[LSR4-ospf-1]area 0
[LSR4-ospf-1-area-0.0.0.0]mpls-te enable
[LSR5]ospf
[LSR5-ospf-1]opaque-capability enable
[LSR5-ospf-1]area 0
[LSR5-ospf-1-area-0.0.0.0]mpls-te enable
[LSR6]ospf
[LSR6-ospf-1]opaque-capability enable
[LSR6-ospf-1]area 0
[LSR6-ospf-1-area-0.0.0.0]mpls-te enable
5. 使能TE Auto FRR
[LSR1]mpls
[LSR1-mpls]mpls te auto-frr
[LSR2]mpls
[LSR2-mpls]mpls te auto-frr
[LSR2-GigabitEthernet0/0/1]mpls te auto-frr link
6. 在入节点LSRA上创建主CR-LSP的MPLS TE Tunnel
[LSR1]explicit-path pp1 //配置主CR-LSP的显式路径
[LSR1-explicit-path-pp1]next hop 20.1.1.2
[LSR1-explicit-path-pp1]next hop 20.1.2.3
[LSR1-explicit-path-pp1]next hop 20.1.3.4
[LSR1-explicit-path-pp1]next hop 4.4.4.4
[LSR1]int Tunnel 0/0/1
[LSR1-Tunnel0/0/1]ip add unnumbered interface LoopBack 0
[LSR1-Tunnel0/0/1]tunnel-protocol mpls te
[LSR1-Tunnel0/0/1]destination 4.4.4.4
[LSR1-Tunnel0/0/1]mpls te tunnel-id 100
[LSR1-Tunnel0/0/1]mpls te record-route label
[LSR1-Tunnel0/0/1]mpls te path explicit-path pp1
[LSR1-Tunnel0/0/1]mpls te priority 4 3
[LSR1-Tunnel0/0/1]mpls te fast-reroute
[LSR1-Tunnel0/0/1]mpls te commit
7. 检查配置
可以看到LSR1和LSR2上有两条隧道经过，LSR3上有三条隧道经过（分别为一条主隧道和两条Bypass隧道）
可以看到LSR1上主隧道和一条自动旁路隧道Tunnel2048绑定，LSR2上主隧道和一条自动旁路隧道Tunnel2048绑定。
