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MVP
Posts: 765
Registered: ‎03-25-2009

L2 GRE keepalive

[ Edited ]

Hi,

 

Doing some testing with layer 2 tunnels and runnign into an issue.

I've configured the following

 

configure terminal 
	interface tunnel 1
        description "naar edge"
        tunnel source 192.168.253.1
        tunnel mode gre 0
        tunnel destination 11.11.11.1
        trusted
        mtu 1400
        tunnel vlan 252
		no shutdown
!

configure terminal 
	interface tunnel 1
        description "naar main"
        tunnel source 11.11.11.1
        tunnel mode gre 0
        tunnel destination 192.168.253.1
        trusted
        mtu 1400
        tunnel vlan 252
!

 where both .1 addresses are vrrp addresses.

This works fine but as soon as I enable keepalives on the tunnel interface everything stops working.

For some reason the keepalives fail 100% of the time, even in a lab environment where everything is directly connected with eachother.

 

Anybody got an idea why? If the tunnel is up and passing trraffic, howcome the keepalives don't get through?

Koen (ACMX #351 | ACDX #547 | ACCP)

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-- Problem Solved? Click "Accept as Solution" in a post.
Guru Elite
Posts: 20,992
Registered: ‎03-29-2007

Re: L2 GRE keepalive

What version of ArubaOS is this?

 



Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

MVP
Posts: 765
Registered: ‎03-25-2009

Re: L2 GRE keepalive

[ Edited ]

vrrp master 6.3.1.8 to vrrp master 6.1.3.7

Enabling it only on the 6.3.1.8 master was enough to break to tunnel.

Koen (ACMX #351 | ACDX #547 | ACCP)

-- Found something helpful, important, or cool? Click the Kudos Star in a post.
-- Problem Solved? Click "Accept as Solution" in a post.
Guru Elite
Posts: 20,992
Registered: ‎03-29-2007

Re: L2 GRE keepalive

[ Edited ]

6.3.1.9 fixes that, OR disable keepalives.

 

gre.JPG



Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

MVP
Posts: 765
Registered: ‎03-25-2009

Re: L2 GRE keepalive

Thanks, didn't catch that bug..  runnign without keepalive at the moment so case closed.

Koen (ACMX #351 | ACDX #547 | ACCP)

-- Found something helpful, important, or cool? Click the Kudos Star in a post.
-- Problem Solved? Click "Accept as Solution" in a post.
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