Cisco ASR 9000 Series

Router(config)# segment-routing
Router(config-sr)# traffic-eng
Router(config-sr-te)# segment-list name pref_adj_sid_to_PE3
Router(config-sr-te-sl)# index 1 mpls label 15101 <-----------------------using adjacency-SID
Router(config-sr-te-sl)# index 2 mpls label 15202 <-----------------------using adjacency-SID
Router(config-sr-te-sl)# exit
Configure SR-TE Policy
/* Configure SR-TE Policy */
Router# configure
Router(config)# segment-routing
Router(config-sr)# traffic-eng
Router(config-sr-te)# policy pref_sid_to_PE3
Router(config-sr-te-policy)# color 9001 end-point ipv4 20.20.20.20
Router(config-sr-te-policy)# candidate-paths
Router(config-sr-te-policy)# preference 10
Router(config-sr-te-pp-info)# explicit segment-list pref_sid_to_PE3
Router(config-sr-te-pp-info)# commit
Router(config-sr-te-pp-info)# exit
!
Router# configure
Router(config)# segment-routing
Router(config-sr)# traffic-eng
Router(config-sr-te)# policy pref_adj_sid_to_PE3
Router(config-sr-te-policy)# color 9001 end-point ipv4 20.20.20.20
Router(config-sr-te-policy)# candidate-paths
Router(config-sr-te-policy)# preference 200
Router(config-sr-te-pp-info)# explicit segment-list pref_adj_sid_to_PE3
Router(config-sr-te-pp-info)# commit
Router(config-sr-te-pp-info)# exit
/* You can configure multiple preferences for an SR policy. Among the configured preferences,
the largest number takes the highest precedence */
Router# configure
Router(config)# segment-routing
Router(config-sr)# global-block 180000 200000
Router(config-sr)# local-block 15000 15999
Router(config-sr)# traffic-eng
Router(config-sr-te)# policy 1013
Router(config-sr-te-policy)# color 1013 end-point ipv4 2.2.2.2
Router(config-sr-te-policy)# candidate-paths
Router(config-sr-te-policy)# preference 100
Router(config-sr-te-pp-info)# explicit segment-list PE1-P1_BE121
Router(config-sr-te-pp-info)# exit
!
Router(config-sr-te-policy)# preference 200
Router(config-sr-te-pp-info)# explicit segment-list PE1-PE3-P1-t0016
Router(config-sr-te-pp-info)# exit
!
Router(config-sr-te-policy)# preference 700 <----------largest number takes the precendence
Router(config-sr-te-pp-info)# explicit segment-list PE1-P1
Router(config-sr-te-pp-info)# commit
Router(config-sr-te-pp-info)# exit
L2VPN and Ethernet Services Configuration Guide for Cisco ASR 9000 Series Routers, IOS XR Release 6.3.x
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L2VPN Services over Segment Routing for Traffic Engineering Policy
Configure SR-TE Policy