Hello, After I upgraded one of server's OS from CentOS7 to CentOS8, the default routingsoftware changed to frr from quagga. I found that the OSPF ECMP didn't work againbetween the my two servers, one is CentOS7 with quagga, another is CentOS8 with frr. How to configure frr to make the "TOS 0 Metric" become value 10 ? Thanks in advanced ! Best Regards,SUN Guonian              +-------------+             |   router    |             +---+-----+---+192.168.8.158/28 |     | 192.168.8.174/28          |     |192.168.8.149/28 |     | 192.168.8.166/28    +------------+--+  +---------------+    |xxx.xxx.xxx.xx1|  |xxx.xxx.xxx.xx2|    +---------------+  +---------------+ ===== ospfd# sh ip ospf database router adv-router 192.168.8.166        OSPF Router with ID (192.168.8.166)                 Router Link States (Area 0.0.0.0)   LS age: 758  Options: 0x2  : *|-|-|-|-|-|E|-  LS Flags: 0x3    Flags: 0x0  LS Type: router-LSA  Link State ID: 192.168.8.166   Advertising Router: 192.168.8.166  LS Seq Number: 8000655c  Checksum: 0xefc3  Length: 48    Number of Links: 2     Link connected to: a Transit Network     (Link ID) Designated Router address: 192.168.8.174     (Link Data) Router Interface address: 192.168.8.166      Number of TOS metrics: 0       TOS 0 Metric: 100     Link connected to: Stub Network     (Link ID) Net: xxx.xxx.xxx.xx1     (Link Data) Network Mask: 255.255.255.255      Number of TOS metrics: 0       TOS 0 Metric: 0 router ospf ospf router-id 192.168.8.166 network 192.168.8.160/28 area 0.0.0.0 network xxx.xxx.xxx.xx1/32 area 0.0.0.0! ===== ospfd# sh ip ospf database router adv-router 192.168.8.149        OSPF Router with ID (192.168.8.148)                 Router Link States (Area 0.0.0.0)   LS age: 302  Options: 0x2  : *|-|-|-|-|-|E|-  LS Flags: 0x6    Flags: 0x0  LS Type: router-LSA  Link State ID: 192.168.8.149   Advertising Router: 192.168.8.149  LS Seq Number: 8000178d  Checksum: 0x4472  Length: 96    Number of Links: 6     Link connected to: a Transit Network     (Link ID) Designated Router address: 192.168.8.158     (Link Data) Router Interface address: 192.168.8.149      Number of TOS metrics: 0       TOS 0 Metric: 10     Link connected to: Stub Network     (Link ID) Net: xxx.xxx.xxx.xx2     (Link Data) Network Mask: 255.255.255.255      Number of TOS metrics: 0       TOS 0 Metric: 10 router ospf ospf router-id 192.168.8.149 network 192.168.8.144/28 area 0.0.0.0 network xxx.xxx.xxx.xx2/32 area 0.0.0.0!