Eigrp Nexus.

[Juraj Papic]

Hi,

I have a similiar topology as the one in the attachment, between Dc-1 & Dc-2 I have dark fiber, in on of
the sides I have L3 and on the other side I have a L2.

In this 2 sides (Dc-1 & Dc-2) I have eigrp 10 configured, only in the interface that I want to have eigrp.

This 2 sites (Dc-1 & Dc-2) have the same interface vlans configured (they are a mirror).
The issue is that in a DC-2 I have an interface vlan that, was in "no shut" with no eigrp configuracion inside it,
and it was being advertside via eigrp, when in DC-1 I do "show ip eigpe_Netowrk" I can see that vlan being advertisde.
via the Interfaces (Dark Fiber) I have connected between both sides.

My question is, should an interface vlan redistribut, the configuracion even though they dont have "ip route eigp_Network"in
there configuration?

Thanks.

[Masoud Pourshabanian]

Hello,

Do you have "redistribute" command under EIGRP configuration?

Masoud

[Juraj Papic]

Hello

@Ganesh

I have to interface between the 2 sites, one inteface with L2 and the other with L3. Both sites have the same vlans because they are a mirror from each other.

@Reza

 Im using a route-map to redistribut the Ip from the inteface vlans, but for this especific inteface vlan , I did not add in my match configuration.

@Masoud

I have a route-map configured.

This is how I have it connected, the eigrp is configured only in the  L3.

Site 1         Site 2

7700 -L2-   7700

7700 -L3-   7700

Thanks. 

[Masoud Pourshabanian]

Please share your EIGRP configuration(restribute part) and your route-map and ACL.

What is the IP address that you do not want to redistribute?

Masoud

[Juraj Papic]

route-map eigrp_distro_connected permit 10
match vlan 850
!
router eigrp DataCenter
autonomous-system 10
redistribute direct route-map eigrp_distro_connected
!
!
interface Vlan850
no ip redirects
ip address 50.50.50.4/24
no ip arp gratuitous hsrp duplicate
hsrp version 2
hsrp 0
authentication md5 key-chain HSRP
preempt
ip 50.50.50.1
no shutdown
!

interface Vlan96 ---->this one was not allowed to be redistributed
no ip redirects
ip address 10.99.96.2/24
no ip arp gratuitous hsrp duplicate
hsrp version 2
hsrp 0
authentication md5 key-chain HSRP
preempt
ip 10.99.96.1
description Managent2

Thanks!

[Masoud Pourshabanian]

Hello,

Are the config the same in both nexus switches? Try to check route-map name letter-by lettrer to make sure the name is correct on route-map itself and route-map in redistribute command.

If it is possible, shut VLAN 96 on both switches and check to see if you see that IP on other switches( in case of misconfiguration of IP)

Try to check these commands to see if you see any helpful intermation

show ip eigrp policy statistics redistribute direct

show eigrp_distro_connected

instead of mach VLAN, use access-list to match IP address. Just for test

Masoud

[Juraj Papic]

Masoud,

The config is the same for both sites, and about the route-map I did a copy/paste just to be sure it was the same, the only thing is in site 1 the vlan 96 has to be enabled, because its in production. 

Can that be the issue? Even though they are remote sites they are Active/Active.

I will try the access-list config.

Thanks.

[Masoud Pourshabanian]

There should not be any problem if you have high bandwidth and low delay on fiber.

Do you have two VPC domains or just one? (I am checking your topology)Can you specifiy your VPC peers? and your peer link and keep alive link?

Do you have EIGRP on aggregation switches? If yes, show IP route shows VLAN 96?

Masoud

[Juraj Papic]

I have a vpc between sites, and a vpc against (2) 9342 that are only in L2 that have the Vlan 96, here I dont have eigrp running.

The keep-alive is between int e1/1 and peer-link between interface 1/2-3 in a vpc.

Thanks. 

[Juraj Papic]

Masoud,

I did the acl and still have the same issue.

Thanks. 

[Ganesh Hariharan]

Hello Juraj,

So what i understand , You have same set of SVI configured on both the DC's.

and also a Point to point connectivity between sites which is running EIGRP. Is all SVI which are confgured are been redistributed from both te ends.If yes then is both the same set of subnets been advertise from both DC's ?? Is my understanding correct ?

And Over L2 all vlans are spanned across DC's as well ??

-GI

[Juraj Papic]

Hello Ganesh,

Yes both sides have the same svi configured.

Yes there is a point to point (dark fiber) for L3 and L2 between this to sites.

The subnet is all /24 and they are the same.

And in the L2 I have a switch trunk all vlan all.

Site 1

interface Vlan96
no ip redirects
ip address 10.99.96.2/24
no ip arp gratuitous hsrp duplicate
hsrp version 2
hsrp 0
authentication md5 key-chain HSRP
preempt
ip 10.99.96.1
description Managent2

Site 2

interface Vlan96
description Managent2
no shutdown
no ip redirects
ip address 10.99.96.4/24
no ip arp gratuitous hsrp duplicate
hsrp version 2
hsrp 0
authentication md5 key-chain HSRP
preempt
ip 10.99.96.1

[Ganesh Hariharan]

Hello Juraj,

WIth connected command it will redistribute the SVI on the switches. Is your route-map eigrp_distro_connected is exactly matching the subnet as per SVI ?

-GI

[Juraj Papic]

Hello Ganesh,

Yes the route-map is the same, I did a copy / past just to be sure, but as I said before the only svi that can be redistributed is the vlan 850 not the 96.

Thanks. 

[Reza Sharifi]

Hi,

You may have redistribute connected command configured under the EIGRP process.

Note that with Nexus you need a route-map to redistribute static or connected routes.

HTH