<html><head></head><body><div class="yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div dir="ltr" data-setdir="false"><div><div><font face="lucida console, sans-serif">Hello,</font></div><div><font face="lucida console, sans-serif"><br></font></div><div><font face="lucida console, sans-serif">After I upgraded one of server's OS from CentOS7 to CentOS8, the default routing</font></div><div><font face="lucida console, sans-serif">software changed to frr from quagga. I found that the OSPF ECMP didn't work again</font></div><div><font face="lucida console, sans-serif">between the my two servers, one is CentOS7 with quagga, another is CentOS8 with frr.</font></div><div><font face="lucida console, sans-serif"><br></font></div><div><font face="lucida console, sans-serif">How to configure frr to make the "TOS 0 Metric" become value 10 ?</font></div><div><font face="lucida console, sans-serif"><br></font></div><div><font face="lucida console, sans-serif">Thanks in advanced !</font></div><div><font face="lucida console, sans-serif"><br></font></div><div><font face="lucida console, sans-serif">Best Regards,</font></div><div><font face="lucida console, sans-serif">SUN Guonian</font></div><div><font face="lucida console, sans-serif"><br></font></div><div><font face="lucida console, sans-serif"> +-------------+</font></div><div><font face="lucida console, sans-serif"> | router |</font></div><div><font face="lucida console, sans-serif"> +---+-----+---+</font></div><div><font face="lucida console, sans-serif">192.168.8.158/28 | | 192.168.8.174/28</font></div><div><font face="lucida console, sans-serif"><span style="white-space: pre-wrap;"> </span> | |</font></div><div><font face="lucida console, sans-serif">192.168.8.149/28 | | 192.168.8.166/28</font></div><div><font face="lucida console, sans-serif"> +------------+--+ +---------------+</font></div><div><font face="lucida console, sans-serif"> |xxx.xxx.xxx.xx1| |xxx.xxx.xxx.xx2|</font></div><div><font face="lucida console, sans-serif"> +---------------+ +---------------+</font></div><div><font face="lucida console, sans-serif"><br></font></div><div><font face="lucida console, sans-serif">=====</font></div><div><font face="lucida console, sans-serif"><br></font></div><div><font face="lucida console, sans-serif">ospfd# sh ip ospf database router adv-router 192.168.8.166</font></div><div><font face="lucida console, sans-serif"><br></font></div><div><font face="lucida console, sans-serif"> OSPF Router with ID (192.168.8.166)</font></div><div><font face="lucida console, sans-serif"><br></font></div><div><font face="lucida console, sans-serif"><br></font></div><div><font face="lucida console, sans-serif"> Router Link States (Area 0.0.0.0)</font></div><div><font face="lucida console, sans-serif"><br></font></div><div><font face="lucida console, sans-serif"> LS age: 758</font></div><div><font face="lucida console, sans-serif"> Options: 0x2 : *|-|-|-|-|-|E|-</font></div><div><font face="lucida console, sans-serif"> LS Flags: 0x3 </font></div><div><font face="lucida console, sans-serif"> Flags: 0x0</font></div><div><font face="lucida console, sans-serif"> LS Type: router-LSA</font></div><div><font face="lucida console, sans-serif"> Link State ID: 192.168.8.166 </font></div><div><font face="lucida console, sans-serif"> Advertising Router: 192.168.8.166</font></div><div><font face="lucida console, sans-serif"> LS Seq Number: 8000655c</font></div><div><font face="lucida console, sans-serif"> Checksum: 0xefc3</font></div><div><font face="lucida console, sans-serif"> Length: 48</font></div><div><font face="lucida console, sans-serif"><br></font></div><div><font face="lucida console, sans-serif"> Number of Links: 2</font></div><div><font face="lucida console, sans-serif"><br></font></div><div><font face="lucida console, sans-serif"> Link connected to: a Transit Network</font></div><div><font face="lucida console, sans-serif"> (Link ID) Designated Router address: 192.168.8.174</font></div><div><font face="lucida console, sans-serif"> (Link Data) Router Interface address: 192.168.8.166</font></div><div><font face="lucida console, sans-serif"> Number of TOS metrics: 0</font></div><div><font face="lucida console, sans-serif"> TOS 0 Metric: 100</font></div><div><font face="lucida console, sans-serif"><br></font></div><div><font face="lucida console, sans-serif"> Link connected to: Stub Network</font></div><div><font face="lucida console, sans-serif"> (Link ID) Net: xxx.xxx.xxx.xx1</font></div><div><font face="lucida console, sans-serif"> (Link Data) Network Mask: 255.255.255.255</font></div><div><font face="lucida console, sans-serif"> Number of TOS metrics: 0</font></div><div><font face="lucida console, sans-serif"> TOS 0 Metric: 0</font></div><div><font face="lucida console, sans-serif"><br></font></div><div><font face="lucida console, sans-serif">router ospf</font></div><div><font face="lucida console, sans-serif"> ospf router-id 192.168.8.166</font></div><div><font face="lucida console, sans-serif"> network 192.168.8.160/28 area 0.0.0.0</font></div><div><font face="lucida console, sans-serif"> network xxx.xxx.xxx.xx1/32 area 0.0.0.0</font></div><div><font face="lucida console, sans-serif">!</font></div><div><font face="lucida console, sans-serif"><br></font></div><div><font face="lucida console, sans-serif">=====</font></div><div><font face="lucida console, sans-serif"><br></font></div><div><font face="lucida console, sans-serif">ospfd# sh ip ospf database router adv-router 192.168.8.149</font></div><div><font face="lucida console, sans-serif"><br></font></div><div><font face="lucida console, sans-serif"> OSPF Router with ID (192.168.8.148)</font></div><div><font face="lucida console, sans-serif"><br></font></div><div><font face="lucida console, sans-serif"><br></font></div><div><font face="lucida console, sans-serif"> Router Link States (Area 0.0.0.0)</font></div><div><font face="lucida console, sans-serif"><br></font></div><div><font face="lucida console, sans-serif"> LS age: 302</font></div><div><font face="lucida console, sans-serif"> Options: 0x2 : *|-|-|-|-|-|E|-</font></div><div><font face="lucida console, sans-serif"> LS Flags: 0x6 </font></div><div><font face="lucida console, sans-serif"> Flags: 0x0</font></div><div><font face="lucida console, sans-serif"> LS Type: router-LSA</font></div><div><font face="lucida console, sans-serif"> Link State ID: 192.168.8.149 </font></div><div><font face="lucida console, sans-serif"> Advertising Router: 192.168.8.149</font></div><div><font face="lucida console, sans-serif"> LS Seq Number: 8000178d</font></div><div><font face="lucida console, sans-serif"> Checksum: 0x4472</font></div><div><font face="lucida console, sans-serif"> Length: 96</font></div><div><font face="lucida console, sans-serif"><br></font></div><div><font face="lucida console, sans-serif"> Number of Links: 6</font></div><div><font face="lucida console, sans-serif"><br></font></div><div><font face="lucida console, sans-serif"> Link connected to: a Transit Network</font></div><div><font face="lucida console, sans-serif"> (Link ID) Designated Router address: 192.168.8.158</font></div><div><font face="lucida console, sans-serif"> (Link Data) Router Interface address: 192.168.8.149</font></div><div><font face="lucida console, sans-serif"> Number of TOS metrics: 0</font></div><div><font face="lucida console, sans-serif"> TOS 0 Metric: 10</font></div><div><font face="lucida console, sans-serif"><br></font></div><div><font face="lucida console, sans-serif"> Link connected to: Stub Network</font></div><div><font face="lucida console, sans-serif"> (Link ID) Net: xxx.xxx.xxx.xx2</font></div><div><font face="lucida console, sans-serif"> (Link Data) Network Mask: 255.255.255.255</font></div><div><font face="lucida console, sans-serif"> Number of TOS metrics: 0</font></div><div><font face="lucida console, sans-serif"> TOS 0 Metric: 10</font></div><div><font face="lucida console, sans-serif"><br></font></div><div><font face="lucida console, sans-serif">router ospf</font></div><div><font face="lucida console, sans-serif"> ospf router-id 192.168.8.149</font></div><div><font face="lucida console, sans-serif"> network 192.168.8.144/28 area 0.0.0.0</font></div><div><font face="lucida console, sans-serif"> network xxx.xxx.xxx.xx2/32 area 0.0.0.0</font></div><div><font face="lucida console, sans-serif">!</font></div><div><br></div></div><br></div></div></body></html>