The following uses the configuration of Core_SPE1 on the core ring as an example. The configurations of Core_SPE2 and Core_SPE3 are similar to the configuration of Core_SPE1, and are not mentioned here.
mpls mpls te //Enable MPLS TE globally. mpls rsvp-te //Enable RSVP-TE. mpls te cspf //Enable the CSPF algorithm. # interface Eth-Trunk4 mpls te //Enable MPLS TE on an interface. mpls te link administrative group c //Configure the link management group attribute for the TE tunnel to select primary and backup paths. mpls rsvp-te //Enable RSVP-TE on an interface. # interface Eth-Trunk5 mpls te mpls te link administrative group 30 mpls rsvp-te # interface Eth-Trunk17 mpls te mpls te link administrative group 4 mpls rsvp-te # interface XGigabitEthernet6/0/4 mpls te mpls te link administrative group 20 mpls rsvp-te # ospf 1 opaque-capability enable //Enable the Opaque capability of OSPF. area 0.0.0.0 mpls-te enable //Enable MPLS TE in the OSPF area. # interface Tunnel611 //Specify the tunnel from Core_SPE1 to Site1_UPE1. description Core_SPE1 to Site1_UPE1 //Configure the interface description. ip address unnumbered interface LoopBack1 //Configure a tunnel interface to borrow the IP address of a loopback interface. tunnel-protocol mpls te //Set the tunnel protocol to MPLS TE. destination 172.16.2.51 //Configure IP address of Site1_UPE1 as the tunnel destination IP address. mpls te tunnel-id 71 //Configure a tunnel ID, which must be valid and unique on the local device. mpls te record-route //Configure the tunnel to record detailed route information for maintenance. mpls te affinity property 4 mask 4 //Configure the affinity attribute of the primary CR-LSP for selecting the optimal forwarding path. mpls te affinity property 8 mask 8 secondary //Configure the affinity attribute of the backup CR-LSP. mpls te backup hot-standby //Configure the hot standby mode of tunnels. mpls te commit //Commit all the MPLS TE configuration of the tunnel for the configuration to take effect. # interface Tunnel622 description Core_SPE1 to Site1_UPE2 ip address unnumbered interface LoopBack1 tunnel-protocol mpls te destination 172.16.2.50 mpls te tunnel-id 82 mpls te record-route mpls te affinity property 8 mask 8 mpls te affinity property 4 mask 4 secondary mpls te backup hot-standby mpls te commit # interface Tunnel711 description Core_SPE1 to Site3_UPE6 ip address unnumbered interface LoopBack1 tunnel-protocol mpls te destination 172.16.2.86 mpls te tunnel-id 311 mpls te record-route mpls te affinity property 20 mask 20 mpls te affinity property 10 mask 10 secondary mpls te backup hot-standby mpls te commit # interface Tunnel721 description Core_SPE1 to Site3_UPE5 ip address unnumbered interface LoopBack1 tunnel-protocol mpls te destination 172.16.2.87 mpls te tunnel-id 312 mpls te record-route mpls te affinity property 10 mask 10 mpls te affinity property 20 mask 20 secondary mpls te backup hot-standby mpls te commit # tunnel-policy TSel //Configure a tunnel policy. tunnel select-seq cr-lsp lsp load-balance-number 1 //Configure the CR-LSP to be preferentially selected. # tunnel-policy TE tunnel select-seq cr-lsp load-balance-number 1 #
The following uses the configuration of Site1_UPE1 as an example. The configurations of Site1_UPE2, Site2_UPE3, Site2_UPE4, Site3_UPE5, and Site3_UPE6 are similar to the configuration of Site1_UPE1, and are not mentioned here.
mpls mpls te //Enable MPLS TE globally. mpls rsvp-te //Enable RSVP-TE. mpls te cspf //Enable the CSPF algorithm. # interface Eth-Trunk7 mpls te //Enable MPLS TE on an interface. mpls te link administrative group c //Configure the link management group attribute for the TE tunnel to select primary and backup paths. mpls rsvp-te //Enable RSVP-TE on an interface. # interface Eth-Trunk17 mpls te mpls te link administrative group 4 mpls rsvp-te # ospf 1 opaque-capability enable //Enable the Opaque capability of OSPF. area 0.0.0.0 mpls-te enable //Enable MPLS TE in the OSPF area. # interface Tunnel611 //Specify the tunnel from Site1_UPE1 to Core_SPE1. description Site1_UPE1 to Core_SPE1 //Configure the interface description. ip address unnumbered interface LoopBack1 //Configure a tunnel interface to borrow the IP address of a loopback interface. tunnel-protocol mpls te //Set the tunnel protocol to MPLS TE. destination 172.16.0.5 //Configure IP address of Core_SPE1 as the tunnel destination IP address. mpls te tunnel-id 71 //Configure a tunnel ID, which must be valid and unique on the local device. mpls te record-route //Configure the tunnel to record detailed route information for maintenance. mpls te affinity property 4 mask 4 //Configure the affinity attribute of the primary CR-LSP for selecting the optimal forwarding path. mpls te affinity property 8 mask 8 secondary //Configure the affinity attribute of the backup CR-LSP. mpls te backup hot-standby //Configure the hot standby mode of tunnels. mpls te commit //Commit all the MPLS TE configuration of the tunnel for the configuration to take effect. # interface Tunnel612 description Site1_UPE1 to Core_SPE2 ip address unnumbered interface LoopBack1 tunnel-protocol mpls te destination 172.16.0.3 mpls te tunnel-id 72 mpls te record-route mpls te affinity property 4 mask 4 mpls te affinity property 8 mask 8 secondary mpls te backup hot-standby mpls te commit # tunnel-policy TSel //Configure a tunnel policy. tunnel select-seq cr-lsp lsp load-balance-number 1 //Configure the CR-LSP to be preferentially selected. #
Run the display mpls te tunnel-interface Tunnel command to check local tunnel interface information.
Using tunnel 611 from Core_SPE1 to Site1_UPE1 as an example, if both the primary and backup LSPs of tunnel 611 are in UP state, the primary and backup LSPs have been set up successfully.
[Core_SPE1]display mpls te tunnel-interface Tunnel611
----------------------------------------------------------------
Tunnel611
----------------------------------------------------------------
Tunnel State Desc : UP
Active LSP : Primary LSP
Session ID : 71
Ingress LSR ID : 172.16.0.5 Egress LSR ID: 172.16.2.51
Admin State : UP Oper State : UP
Primary LSP State : UP
Main LSP State : READY LSP ID : 1
Hot-Standby LSP State : UP
Main LSP State : READY LSP ID : 32772
Run the display mpls te hot-standby state all command to view status of all HSB tunnels.
Using Core_SPE1 as an example, if all HSB tunnels of Core_SPE1 are in Primary LSP state, traffic has been switched to primary CR-LSPs.
[Core_SPE1]display mpls te hot-standby state all --------------------------------------------------------------------- No. tunnel name session id switch result --------------------------------------------------------------------- 1 Tunnel611 71 Primary LSP 2 Tunnel622 82 Primary LSP 3 Tunnel711 311 Primary LSP 4 Tunnel721 312 Primary LSP
Run the ping lsp te tunnel command to check bidirectional connectivity of the master and backup TE tunnels of each device.
Using tunnel 611 from Core_SPE1 to Site1_UPE1 as an example, run the following ping commands on both ends of the TE tunnel:
[Core_SPE1] ping lsp te Tunnel611
LSP PING FEC: TE TUNNEL IPV4 SESSION QUERY Tunnel611 : 100 data bytes, press CTRL_C to break
Reply from 172.16.2.51: bytes=100 Sequence=1 time=5 ms
Reply from 172.16.2.51: bytes=100 Sequence=2 time=3 ms
Reply from 172.16.2.51: bytes=100 Sequence=3 time=3 ms
Reply from 172.16.2.51: bytes=100 Sequence=4 time=2 ms
Reply from 172.16.2.51: bytes=100 Sequence=5 time=3 ms
--- FEC: TE TUNNEL IPV4 SESSION QUERY Tunnel611 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 2/3/5 ms
[Core_SPE1] ping lsp te Tunnel611 hot-standby
LSP PING FEC: TE TUNNEL IPV4 SESSION QUERY Tunnel611 : 100 data bytes, press CTRL_C to break
Reply from 172.16.2.51: bytes=100 Sequence=1 time=2 ms
Reply from 172.16.2.51: bytes=100 Sequence=2 time=2 ms
Reply from 172.16.2.51: bytes=100 Sequence=3 time=3 ms
Reply from 172.16.2.51: bytes=100 Sequence=4 time=2 ms
Reply from 172.16.2.51: bytes=100 Sequence=5 time=3 ms
--- FEC: TE TUNNEL IPV4 SESSION QUERY Tunnel611 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 2/2/3 ms
Run the tracert lsp te Tunnel command to detect LSPs.
Using tunnel 611 from Core_SPE1 to Site1_UPE1 as an example, ensure that the primary and backup tunnel paths are different.
[Core_SPE1]tracert lsp te Tunnel611 LSP Trace Route FEC: TE TUNNEL IPV4 SESSION QUERY Tunnel611 , press CTRL_C to break. TTL Replier Time Type Downstream 0 Ingress 172.17.4.11/[1078 ] 1 172.16.2.51 3 ms Egress
[Core_SPE1]tracert lsp te Tunnel611 hot-standby LSP Trace Route FEC: TE TUNNEL IPV4 SESSION QUERY Tunnel611 , press CTRL_C to break. TTL Replier Time Type Downstream 0 Ingress 172.17.4.9/[1391 ] 1 172.17.4.9 3 ms Transit 172.17.4.13/[1169 ] 2 172.17.4.13 7 ms Transit 172.17.4.14/[1109 ] 3 172.16.2.51 4 ms Egress