问：bgp建立邻居时可以同时匹配多条route-policy策略吗？
比如：
route-policy PREFVAL permit node 10
apply preferred-value 999
#
route-policy 1 permit node 20
if-match ip-prefix 1
apply local-preference 300
#
route-policy 1 permit node 30
#
ip ip-prefix 1 index 10 permit 192.168.1.0 24
