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Example for Configuring SPR
Networking Requirements
As shown in Figure 12-9, a financial enterprise's branch connects to the enterprise data center over two ISP networks (ISP1 and ISP2), and exchange data is saved to ServerA in the data center.
The enterprise wants ISP1 to provide a high-speed active link and ISP2 to provide a standby link. The link delay needs to be shorter than or equal to 1000 ms to ensure that exchange data is sent to the data center in a timely manner.
Configuration Roadmap
The configuration roadmap is as follows:
- Configure the NQA client on RouterA and the NQA server on RouterB so that the quality of the link between the enterprise branch and data center can be detected dynamically.
- Configure ACLs to classify service flows so that SPR can be applied to packets with the destination IP address as the ServerA's IP address.
- Configure SPR routing parameters on RouterA so that detection links are added to a link group.
- Configure association between SPR and services on RotuerA so that ISP1 provides the active link, ISP2 provides the standby link, and the link delay is shorter than or equal to 1000 ms.
Procedure
- Configure IP addresses for interfaces.
# Configure IP addresses for all interfaces of RouterA.
<Huawei> system-view [Huawei] sysname RouterA [RouterA] interface gigabitethernet 1/0/0 [RouterA-GigabitEthernet1/0/0] ip address 202.1.1.1 255.255.255.0 [RouterA-GigabitEthernet1/0/0] quit [RouterA] interface gigabitethernet 2/0/0 [RouterA-GigabitEthernet2/0/0] ip address 178.1.1.1 255.255.255.0 [RouterA-GigabitEthernet2/0/0] quit
# Configure IP addresses for all interfaces of RouterB.
<Huawei> system-view [Huawei] sysname RouterB [RouterB] interface gigabitethernet 1/0/0 [RouterB-GigabitEthernet1/0/0] ip address 202.1.2.1 255.255.255.0 [RouterB-GigabitEthernet1/0/0] quit [RouterB] interface gigabitethernet 2/0/0 [RouterB-GigabitEthernet2/0/0] ip address 178.1.2.1 255.255.255.0 [RouterB-GigabitEthernet2/0/0] quit
# Configure IP addresses for all interfaces of RouterC.
<Huawei> system-view [Huawei] sysname RouterC [RouterC] interface gigabitethernet 1/0/0 [RouterC-GigabitEthernet1/0/0] ip address 202.1.1.2 255.255.255.0 [RouterC-GigabitEthernet1/0/0] quit [RouterC] interface gigabitethernet 2/0/0 [RouterC-GigabitEthernet2/0/0] ip address 202.1.2.2 255.255.255.0 [RouterC-GigabitEthernet2/0/0] quit
# Configure IP addresses for all interfaces of RouterD.
<Huawei> system-view [Huawei] sysname RouterD [RouterD] interface gigabitethernet 1/0/0 [RouterD-GigabitEthernet1/0/0] ip address 178.1.1.2 255.255.255.0 [RouterD-GigabitEthernet1/0/0] quit [RouterD] interface gigabitethernet 2/0/0 [RouterD-GigabitEthernet2/0/0] ip address 178.1.2.2 255.255.255.0 [RouterD-GigabitEthernet2/0/0] quit
- Configure static routes.
# Configure a static route on RouterA.
[RouterA] ip route-static 202.1.2.0 255.255.255.0 202.1.1.2 [RouterA] ip route-static 178.1.2.0 255.255.255.0 178.1.1.2
# Configure a static route on RouterB.
[RouterB] ip route-static 202.1.1.0 255.255.255.0 202.1.2.2 [RouterB] ip route-static 178.1.1.0 255.255.255.0 178.1.2.2
- Configure NQA test instances.
# Configure the NQA client on RouterA.
[RouterA] nqa test-instance admin nqa1 [RouterA-nqa-admin-nqa1] test-type jitter [RouterA-nqa-admin-nqa1] destination-address ipv4 202.1.2.1 [RouterA-nqa-admin-nqa1] destination-port 10000 [RouterA-nqa-admin-nqa1] hardware-based enable [RouterA-nqa-admin-nqa1] frequency 10 [RouterA-nqa-admin-nqa1] source-interface gigabitethernet 1/0/0 [RouterA-nqa-admin-nqa1] start now [RouterA-nqa-admin-nqa1] quit [RouterA] nqa test-instance admin nqa2 [RouterA-nqa-admin-nqa2] test-type jitter [RouterA-nqa-admin-nqa2] destination-address ipv4 178.1.2.1 [RouterA-nqa-admin-nqa2] destination-port 10001 [RouterA-nqa-admin-nqa2] hardware-based enable [RouterA-nqa-admin-nqa2] frequency 10 [RouterA-nqa-admin-nqa2] source-interface gigabitethernet 2/0/0 [RouterA-nqa-admin-nqa2] start now [RouterA-nqa-admin-nqa2] quit
# Configure the NQA server on RouterB.
[RouterB] nqa-server udpecho 202.1.2.1 10000 [RouterB] nqa-server udpecho 178.1.2.1 10001
- Configure ACLs to classify service flows.
# Configure ACL 3000 on RouterA to apply SPR to data flows with destination address 196.1.1.1.
[RouterA] acl 3000 [RouterA-acl-adv-3000] rule permit ip destination 196.1.1.1 0.0.0.0 [RouterA-acl-adv-3000] quit
- Set SPR routing parameters on RouterA.
[RouterA] smart-policy-route [RouterA-smart-policy-route] period 50 [RouterA-smart-policy-route] route flapping suppression 100 [RouterA-smart-policy-route] prober gigabitethernet 1/0/0 nqa admin nqa1 [RouterA-smart-policy-route] prober gigabitethernet 2/0/0 nqa admin nqa2 [RouterA-smart-policy-route] link-group group1 [RouterA-smart-policy-route-link-group-group1] link-member gigabitethernet 1/0/0 [RouterA-smart-policy-route-link-group-group1] quit [RouterA-smart-policy-route] link-group group2 [RouterA-smart-policy-route-link-group-group2] link-member gigabitethernet 2/0/0 [RouterA-smart-policy-route-link-group-group2] quit
- Set SPR service parameters.
[RouterA-smart-policy-route] service-map map1 [RouterA-smart-policy-route-service-map-map1] match acl 3000 [RouterA-smart-policy-route-service-map-map1] set delay threshold 1000 [RouterA-smart-policy-route-service-map-map1] set link-group group1 [RouterA-smart-policy-route-service-map-map1] set link-group group2 backup [RouterA-smart-policy-route-service-map-map1] quit [RouterA-smart-policy-route] quit
- Verify the configurations.
# View the NQA test results of the detection links on RouterA.
[RouterA] display smart-policy-route link-state -------------------------------------------------------------------------------- link-name Delay Jitter Loss -------------------------------------------------------------------------------- GigabitEthernet1/0/0 5000 3000 1000 GigabitEthernet2/0/0 5000 3000 1000 --------------------------------------------------------------------------------
# View routing information about service map1 on RouterA.
[RouterA] display smart-policy-route service-map map1 -------------------------------------------------------------------------------- Match acl : 3000 DelayThreshold : 1000 LossThreshold : 1000 JitterThreshold : 3000 CmiThreshold : 0 GroupName : group1 BackupGroupName : group2 Description : Cmi-Method : d+l+j CurLinkName : GigabitEthernet1/0/0 --------------------------------------------------------------------------------
Configuration Files
Configuration file of RouterA
# sysname RouterA # acl number 3000 rule 5 permit ip destination 196.1.1.1 0 # interface GigabitEthernet1/0/0 ip address 202.1.1.1 255.255.255.0 # interface GigabitEthernet2/0/0 ip address 178.1.1.1 255.255.255.0 # nqa test-instance admin nqa1 test-type jitter destination-address ipv4 202.1.2.1 destination-port 10000 hardware-based enable frequency 10 source-interface GigabitEthernet1/0/0 start now nqa test-instance admin nqa2 test-type jitter destination-address ipv4 178.1.2.1 destination-port 10001 hardware-based enable frequency 10 source-interface GigabitEthernet2/0/0 start now # smart-policy-route period 50 route flapping suppression 100 prober GigabitEthernet1/0/0 nqa admin nqa1 prober GigabitEthernet2/0/0 nqa admin nqa2 link-group group1 link-member GigabitEthernet1/0/0 link-group group2 link-member GigabitEthernet2/0/0 service-map map1 match acl 3000 set delay threshold 1000 set link-group group1 set link-group group2 backup # ip route-static 202.1.2.0 255.255.255.0 202.1.1.2 ip route-static 178.1.2.0 255.255.255.0 178.1.1.2 #
Configuration file of RouterB
# sysname RouterB # interface GigabitEthernet1/0/0 ip address 202.1.2.1 255.255.255.0 # interface GigabitEthernet2/0/0 ip address 178.1.2.1 255.255.255.0 # nqa-server udpecho 178.1.2.1 10001 nqa-server udpecho 202.1.2.1 10000 # ip route-static 202.1.1.0 255.255.255.0 202.1.2.2 ip route-static 178.1.1.0 255.255.255.0 178.1.2.2 #
Configuration file of RouterC
# sysname RouterC # interface GigabitEthernet1/0/0 ip address 202.1.1.2 255.255.255.0 # interface GigabitEthernet2/0/0 ip address 202.1.2.2 255.255.255.0 #
Configuration file of RouterD
# sysname RouterD # interface GigabitEthernet1/0/0 ip address 178.1.1.2 255.255.255.0 # interface GigabitEthernet2/0/0 ip address 178.1.2.2 255.255.255.0 #
