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!