Hello,
After I upgraded one of server's OS from CentOS7 to CentOS8, the default routing
software changed to frr from quagga. I found that the OSPF ECMP didn't work again
between 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
!