system-view immediately
#
undo dcn
y

sysname RRv4
#
mpls
#
mpls lsr-id 4.4.4.4
#
segment-routing 
#
isis 1
 is-level level-2
 cost-style wide
 network-entity 49.0001.4444.4444.4444.00
 segment-routing mpls
 segment-routing global-block 16000 23999
#
interface Ethernet1/0/4
 ip address 10.0.0.7 255.255.255.254
 isis enable 1
 mpls
 undo shutdown
#
interface LoopBack0
 ip address 4.4.4.4 255.255.255.255
 isis enable 1
 isis prefix-sid index 4
#
bgp 1
 router-id 4.4.4.4
 peer 1.1.1.1 as-number 1
 peer 1.1.1.1 connect-interface LoopBack0
 peer 2.2.2.2 as-number 1
 peer 2.2.2.2 connect-interface LoopBack0
 peer 3.3.3.3 as-number 1
 peer 3.3.3.3 connect-interface LoopBack0
 #
 ipv4-family unicast
  peer 1.1.1.1 enable
  peer 2.2.2.2 enable
  peer 3.3.3.3 enable
 #
 ipv4-family vpnv4
  undo policy vpn-target
  peer 1.1.1.1 enable
  peer 1.1.1.1 reflect-client
  peer 2.2.2.2 enable
  peer 2.2.2.2 reflect-client
  peer 3.3.3.3 enable
  peer 3.3.3.3 reflect-client
commit

return

save
y