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Issue:" Problems with OTV"

Hi guys.

Iam having some trouble adding OTV in our network.

I`ve got 2 sites. in one site i got 1 N7K and on the other site i got 2 N7K.

all of them must have full reachability.

Now i start to configure it over an OSPF process:

I created 2 VDC on each Nexus

1 VDC for L3

1 VDC for OTV configuration.

this is my configuration:

Site with 1 N7K:

VDC-OTV:

interface ethernet 5/2

no switchport

ip address 192.168.1.1 255.255.255.0

ip router ospf 1 area 0.0.0.0

ip pim sparse-mode

ip igmp version 3

interface overlay 1

otv joined-interface ethernet 5/2

otv extanded-vlan 2-99

otv control-group 239.1.1.1

otv data-group 232.1.1.0/28

VDC-L3

interface ethernet 1/1 (To Joined Interface OTV)

ip address 192.168.1.2 255.255.255.0

ip router ospf 1 area 0.0.0.0

ip pim sparse-mode

ip igmp version 3

interface ethernet 1/2 (To 1 N7K on other site)

ip address 172.16.1.1 255.255.255.0

ip router ospf 1 area 0.0.0.0

ip pim sparse-mode

interface ethernet 1/3 (To 2 N7K on other site)

ip address 172.16.2.1 255.255.255.0

ip router ospf 1 area 0.0.0.0

ip pim sparse-mode

!

!

ip pim rp-address 192.168.1.1 (ME)

------------------------------------------------------------------

The other 2 VDC has the same configurations.

I have a full connectivity in OSPF, But i cant see any OTV mac learning .

Anyone have any idea how to fix it?

Regards,

Everyone's tags (1)
1 REPLY
Cisco Employee

Issue:" Problems with OTV"

I see three problems:

1) You shoud not configure ip pim sparse-mode on the OTV joint interface in the OTV VDC. This is not required. The joint interface is a multicast client, not part of the multicast path.

2) Your RP has the same IP as the OTV joint interface (192.168.1.1)???

3) I don't see the full OTV configuration. Where is the OTV site-vlan and site-id???

Please correct the above and then post the following:

show otv

show otv adj

show otv isis adj

Regards,

jerry

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