OSPF Segment Routing和MPLS基本配置
R1
RP/0/0/CPU0:ios# show run Mon Aug 10 10:42:30.274 UTC Building configuration... !! IOS XR Configuration 6.0.1 !! Last configuration change at Mon Aug 10 08:38:30 2020 by admin ! vrf a address-family ipv4 unicast import route-target 1:1 ! export route-target 1:1 ! ! ! interface Loopback0 ipv4 address 1.1.1.1 255.255.255.255 ! interface Loopback10 vrf a ipv4 address 10.10.10.10 255.255.255.255 ! interface MgmtEth0/0/CPU0/0 shutdown ! interface GigabitEthernet0/0/0/0 ipv4 address 12.1.1.1 255.255.255.0 ! interface GigabitEthernet0/0/0/1 ipv4 address 13.1.1.1 255.255.255.0 ! interface GigabitEthernet0/0/0/2 shutdown ! router ospf 1 router-id 1.1.1.1 segment-routing global-block 16100 16199 segment-routing mpls segment-routing forwarding mpls area 0 interface Loopback0 prefix-sid index 1 ! interface GigabitEthernet0/0/0/0 network point-to-point ! interface GigabitEthernet0/0/0/1 network point-to-point ! ! ! router bgp 1 bgp router-id 1.1.1.1 address-family vpnv4 unicast ! neighbor 6.6.6.6 remote-as 1 update-source Loopback0 address-family vpnv4 unicast ! ! vrf a rd 1:1 address-family ipv4 unicast redistribute connected ! ! ! end
R2
1 RP/0/0/CPU0:ios# show run 2 Mon Aug 10 10:44:28.008 UTC 3 Building configuration... 4 !! IOS XR Configuration 6.0.1 5 !! Last configuration change at Mon Aug 10 07:52:28 2020 by admin 6 ! 7 interface Loopback0 8 ipv4 address 2.2.2.2 255.255.255.255 9 ! 10 interface MgmtEth0/0/CPU0/0 11 shutdown 12 ! 13 interface GigabitEthernet0/0/0/0 14 ipv4 address 12.1.1.2 255.255.255.0 15 ! 16 interface GigabitEthernet0/0/0/1 17 ipv4 address 24.1.1.2 255.255.255.0 18 ! 19 interface GigabitEthernet0/0/0/2 20 ipv4 address 23.1.1.2 255.255.255.0 21 ! 22 router ospf 1 23 router-id 2.2.2.2 24 segment-routing global-block 16200 16299 25 segment-routing mpls 26 segment-routing forwarding mpls 27 area 0 28 interface Loopback0 29 prefix-sid index 2 30 ! 31 interface GigabitEthernet0/0/0/0 32 network point-to-point 33 ! 34 interface GigabitEthernet0/0/0/1 35 network point-to-point 36 ! 37 interface GigabitEthernet0/0/0/2 38 network point-to-point 39 ! 40 ! 41 ! 42 end
R3
1 RP/0/0/CPU0:ios#show run 2 Mon Aug 10 10:45:21.274 UTC 3 Building configuration... 4 !! IOS XR Configuration 6.0.1 5 !! Last configuration change at Mon Aug 10 07:52:31 2020 by admin 6 ! 7 interface Loopback0 8 ipv4 address 3.3.3.3 255.255.255.255 9 ! 10 interface MgmtEth0/0/CPU0/0 11 shutdown 12 ! 13 interface GigabitEthernet0/0/0/0 14 ipv4 address 35.1.1.3 255.255.255.0 15 ! 16 interface GigabitEthernet0/0/0/1 17 ipv4 address 13.1.1.3 255.255.255.0 18 ! 19 interface GigabitEthernet0/0/0/2 20 ipv4 address 23.1.1.3 255.255.255.0 21 ! 22 router ospf 1 23 router-id 3.3.3.3 24 segment-routing global-block 16300 16399 25 segment-routing mpls 26 segment-routing forwarding mpls 27 area 0 28 interface Loopback0 29 prefix-sid index 3 30 ! 31 interface GigabitEthernet0/0/0/0 32 network point-to-point 33 ! 34 interface GigabitEthernet0/0/0/1 35 network point-to-point 36 ! 37 interface GigabitEthernet0/0/0/2 38 network point-to-point 39 ! 40 ! 41 ! 42 end
R4
1 RP/0/0/CPU0:ios#show run 2 Mon Aug 10 10:46:27.810 UTC 3 Building configuration... 4 !! IOS XR Configuration 6.0.1 5 !! Last configuration change at Mon Aug 10 07:52:32 2020 by admin 6 ! 7 interface Loopback0 8 ipv4 address 4.4.4.4 255.255.255.255 9 ! 10 interface MgmtEth0/0/CPU0/0 11 shutdown 12 ! 13 interface GigabitEthernet0/0/0/0 14 ipv4 address 46.1.1.4 255.255.255.0 15 ! 16 interface GigabitEthernet0/0/0/1 17 ipv4 address 24.1.1.4 255.255.255.0 18 ! 19 interface GigabitEthernet0/0/0/2 20 ipv4 address 45.1.1.4 255.255.255.0 21 ! 22 router ospf 1 23 router-id 4.4.4.4 24 segment-routing global-block 16400 16499 25 segment-routing mpls 26 segment-routing forwarding mpls 27 area 0 28 interface Loopback0 29 prefix-sid index 4 30 ! 31 interface GigabitEthernet0/0/0/0 32 network point-to-point 33 ! 34 interface GigabitEthernet0/0/0/1 35 network point-to-point 36 ! 37 interface GigabitEthernet0/0/0/2 38 network point-to-point 39 ! 40 ! 41 ! 42 end
R5
1 RP/0/0/CPU0:ios#show run 2 Mon Aug 10 10:47:00.687 UTC 3 Building configuration... 4 !! IOS XR Configuration 6.0.1 5 !! Last configuration change at Mon Aug 10 07:52:35 2020 by admin 6 ! 7 interface Loopback0 8 ipv4 address 5.5.5.5 255.255.255.255 9 ! 10 interface MgmtEth0/0/CPU0/0 11 shutdown 12 ! 13 interface GigabitEthernet0/0/0/0 14 ipv4 address 35.1.1.5 255.255.255.0 15 ! 16 interface GigabitEthernet0/0/0/1 17 ipv4 address 56.1.1.5 255.255.255.0 18 ! 19 interface GigabitEthernet0/0/0/2 20 ipv4 address 45.1.1.5 255.255.255.0 21 ! 22 router ospf 1 23 router-id 5.5.5.5 24 segment-routing global-block 16500 16599 25 segment-routing mpls 26 segment-routing forwarding mpls 27 area 0 28 interface Loopback0 29 prefix-sid index 5 30 ! 31 interface GigabitEthernet0/0/0/0 32 network point-to-point 33 ! 34 interface GigabitEthernet0/0/0/1 35 network point-to-point 36 ! 37 interface GigabitEthernet0/0/0/2 38 network point-to-point 39 ! 40 ! 41 ! 42 end
R6
1 RP/0/0/CPU0:ios#show run 2 Mon Aug 10 10:47:25.606 UTC 3 Building configuration... 4 !! IOS XR Configuration 6.0.1 5 !! Last configuration change at Mon Aug 10 08:45:41 2020 by admin 6 ! 7 vrf a 8 address-family ipv4 unicast 9 import route-target 10 1:1 11 ! 12 export route-target 13 1:1 14 ! 15 ! 16 ! 17 interface Loopback0 18 ipv4 address 6.6.6.6 255.255.255.255 19 ! 20 interface Loopback10 21 vrf a 22 ipv4 address 60.60.60.60 255.255.255.255 23 ! 24 interface Loopback20 25 vrf a 26 ipv4 address 66.66.66.66 255.255.255.255 27 ! 28 interface MgmtEth0/0/CPU0/0 29 shutdown 30 ! 31 interface GigabitEthernet0/0/0/0 32 ipv4 address 46.1.1.6 255.255.255.0 33 ! 34 interface GigabitEthernet0/0/0/1 35 ipv4 address 56.1.1.6 255.255.255.0 36 ! 37 interface GigabitEthernet0/0/0/2 38 ipv4 address 67.1.1.6 255.255.255.0 39 ! 40 router ospf 1 41 router-id 6.6.6.6 42 segment-routing global-block 16600 16699 43 segment-routing mpls 44 segment-routing forwarding mpls 45 area 0 46 interface Loopback0 47 prefix-sid index 6 48 ! 49 interface GigabitEthernet0/0/0/0 50 network point-to-point 51 ! 52 interface GigabitEthernet0/0/0/1 53 network point-to-point 54 ! 55 interface GigabitEthernet0/0/0/2 56 network point-to-point 57 ! 58 ! 59 ! 60 router bgp 1 61 bgp router-id 6.6.6.6 62 address-family vpnv4 unicast 63 ! 64 neighbor 1.1.1.1 65 remote-as 1 66 update-source Loopback0 67 address-family vpnv4 unicast 68 ! 69 ! 70 vrf a 71 rd 1:1 72 address-family ipv4 unicast 73 redistribute connected 74 ! 75 ! 76 ! 77 end
R1
1 RP/0/0/CPU0:ios#ping vrf a 66.66.66.66 source loopback10 2 Mon Aug 10 10:48:21.170 UTC 3 Type escape sequence to abort. 4 Sending 5, 100-byte ICMP Echos to 66.66.66.66, timeout is 2 seconds: 5 !!!!! 6 Success rate is 100 percent (5/5), round-trip min/avg/max = 9/9/9 ms 7 RP/0/0/CPU0:ios#ping vrf a 60.60.60.60 source loopback10 8 Mon Aug 10 10:48:34.620 UTC 9 Type escape sequence to abort. 10 Sending 5, 100-byte ICMP Echos to 60.60.60.60, timeout is 2 seconds: 11 !!!!! 12 Success rate is 100 percent (5/5), round-trip min/avg/max = 9/11/19 ms
R1
1 RP/0/0/CPU0:ios#show cef vrf a 66.66.66.66/32 2 Mon Aug 10 10:49:50.894 UTC 3 %Prefix not found or IP is not running. VRF **nVSatellite. 4 5 VRF: a 6 _____________ 7 66.66.66.66/32, version 4, internal 0x5000001 0x0 (ptr 0xa1426574) [1], 0x0 (0x0), 0x208 (0xa155b348) 8 Updated Aug 10 08:45:41.024 9 Prefix Len 32, traffic index 0, precedence n/a, priority 3 10 via 6.6.6.6/32, 3 dependencies, recursive [flags 0x6000] 11 path-idx 0 NHID 0x0 [0xa15c45f4 0x0] 12 recursion-via-/32 13 next hop VRF - 'default', table - 0xe0000000 14 next hop 6.6.6.6/32 via 16106/0/21 15 next hop 12.1.1.2/32 Gi0/0/0/0 labels imposed {16206 24004} 16 next hop 13.1.1.3/32 Gi0/0/0/1 labels imposed {16306 24004}
R1
1 RP/0/0/CPU0:ios#show mpls forwarding 2 Mon Aug 10 10:50:53.900 UTC 3 Local Outgoing Prefix Outgoing Next Hop Bytes 4 Label Label or ID Interface Switched 5 ------ ----------- ------------------ ------------ --------------- ------------ 6 16102 Pop SR Pfx (idx 2) Gi0/0/0/0 12.1.1.2 0 7 16103 Pop SR Pfx (idx 3) Gi0/0/0/1 13.1.1.3 0 8 16104 16204 SR Pfx (idx 4) Gi0/0/0/0 12.1.1.2 0 9 16105 16305 SR Pfx (idx 5) Gi0/0/0/1 13.1.1.3 0 10 16106 16206 SR Pfx (idx 6) Gi0/0/0/0 12.1.1.2 680940 11 16306 SR Pfx (idx 6) Gi0/0/0/1 13.1.1.3 1673735 12 24000 Pop SR Adj (idx 0) Gi0/0/0/0 12.1.1.2 0 13 24001 Pop SR Adj (idx 0) Gi0/0/0/0 12.1.1.2 0 14 24002 Pop SR Adj (idx 0) Gi0/0/0/1 13.1.1.3 0 15 24003 Pop SR Adj (idx 0) Gi0/0/0/1 13.1.1.3 0 16 24004 Aggregate a: Per-VRF Aggr[V] a 655720
不建议路由域中使用不同的SRGB。
在R3的接口抓包。
IGP控制平面报文
