tree 9527358ca3893df8d4f2b1e116d281c94abe5ebb
parent bc45d24486af33ef6462ecfec83f5d86aa2e7237
author yangjianfeng <yjf1970231893@gmail.com> 1606034538 +0000
committer yangjianfeng <yjf1970231893@gmail.com> 1606092402 +0000

Add method to reserve the external subnet cidrs

Related-Bug: #1903433
Change-Id: Ic2333d1529d7749207bf81fc842963a5e5208306