I Cant make ospf between two Extreme Swichtes through a L2 link with a LAG configuration between then?

[Edison]

Hi everybody, I'm having a problem with two switches that are connected via a L2 Service Provider, and there is a LAG between one of the switches and the SP Switch. This LAG is up, but when I actívate the OSPF I cant make the switches run the OSPF. Down I show the relevant configuration. The vlan betweem them is 3794

Switch1:
enable ospf
configure ospf add vlan B-Lim-Ar area 0.0.0.0
create vman "B-Lim-Ar"
configure vman B-Lim-Ar tag 3794
configure vman B-Lim-Ar add ports 12 tagged
configure vlan B-Lim-Ar ipaddress 60.60.60.1 255.255.255.248
enable ipforwarding vlan B-Lim-Ar
configure ports 12 display-string TO_B
configure ports 12 auto on speed 1000 duplex full
configure ports 12 ethertype secondary

* SBJ-EXT_AGREG.74 # show ospf area detail
IP addr Ospf State DR IP addr BDR IP addr
60.60.60.1 /29 E DR 60.60.60.1 0.0.0.0

Switch2 with LAG:
enable ospf
configure ospf add vlan AqpLima area 0.0.0.0
create vman "AqpLima"
configure vman AqpLima tag 3794
configure vman AqpLima add ports 44 tagged
configure vlan AqpLima ipaddress 60.60.60.2 255.255.255.248
enable ipforwarding vlan AqpLima
configure ospf add vlan AqpLima area 0.0.0.0
configure ports 44 display-string TO_Bit
configure ports 44 auto off speed 1000 duplex full
configure ports 44 ethertype secondary
enable sharing 44 grouping 44-45 algorithm address-based L3 lacp

EXTR_AQP.137 # show lacp lag 44 detail
* EXTR_AQP.138 # C-Collecting, D-Distributing, F-Defaulted, E-ExpiredActor Flags: A-Activity, T-Timeout, G-Aggregation, S-Synchronization================================================================================45 0 Current Selected Collect-Dist A-GSCD-- 2 44 0 Current Selected Collect-Dist A-GSCD-- 1 --------------------------------------------------------------------------------Port Priority State Logic State Flags Port Member Port Rx Sel Mux Actor Partner Port list: T.pri:32768, T.id:e0:24:7f:fc:a4:59, L:0x0a31 S.pri:0 , S.id:00:04:96:99:9e:4e, K:0x0414LAG Id flag : YesStandby count : 0Selected count : 2Minimum active : 1Transmit state : EnabledReceive state : EnabledDefaulted Action : DeleteActivity mode : ActiveCurrent timeout : LongWait-for-count : 0Unack count : 0LAG State : UpEnabled : Yes44 0 0x0414 e0:24:7f:fc:a4:59 32768 0x0a31 2 00:04:96:99:9e:4e-------------------------------------------------------------------------------- Sys-Pri Key MAC Sys-Pri Key Count MAC Lag Actor Actor Partner Partner Partner Agg Actor

* EXTR_AQP.129 # show ospf area detail
IP addr Ospf State DR IP addr BDR IP addr
60.60.60.2 /29 E DR 60.60.60.2 0.0.0.0

I have tried it with LAG algorithm address-based L2 but its the same problem. The SP switch is Huawei. Thanks in advance for your suggestions.

[Erik_Auerswald]

Hi Edison,

thanks for letting us know what caused the problem. 🙂

Erik

[Edison]

I solved the problem, it was that the Router ID was the same in both switches, change one of them and OSPF got established. Thank you all for helping me

[Erik_Auerswald]

If OSPF hellos are transmitted, the respective multicast group 224.0.0.5 can be seen using
show mcast cache group 224.0.0.5/32or
show igmp group 224.0.0.5

[Prashanth_KG]

Hi Edison,

Just curious about the configured value for the secondary ether type.

Please share the output of "show vman ethertype"

If the issue is still present, we may need to check if the hellos are being forwarded between the switches via the L2 Service provider.

Thanks in advance.