Zte ZXR10 GER User Manual page 285

When ISP1 is normal and ISP2 is abnormal, ISP1 is selected
for both the users of the two subnets. The default route is
adopted for users in the 11.11.0.0/24 subnet.
When ISP1 is abnormal and ISP2 is normal, the services in
the 11.11.0.0/24 subnet are normal, while those in the
10.10.0.0/24 subnet are interrupted.
Confidential and Proprietary Information of ZTE CORPORATION
Chapter 17 Policy Routing Configuration
263