[cisco-voip] intercluster trunk over IPSec VPN

[Abebe Amare]

Hi Dennis,

Configuring a persistent L2L tunnel proved to be very elusive. I settled
for running a periodic ping scheduled to keep the tunnel running.

Thanks for your help

Abebe

On Tue, Feb 7, 2012 at 6:16 PM, Dennis Heim <Dennis.Heim at cdw.com> wrote:

>  I think you answered your own question. IPSEC tunnel’s take time to
> bring up. Maybe you could tweak some of the VPN negotiating parameters, or
> create a separate L2 tunnel profile/group just for your voice that is
> permanent and does not have an inactivity timer.****
>
> ** **
>
> ** **
>
> Dennis Heim
> Senior Engineer (Unified Communications)
> CDW  Advanced Technology Services
> 10610 9th Place
> Bellevue, WA 98004
>
> 425.310.5299 Single Number Reach (WA)****
>
> 317.569.4255 Single Number Reach (IN)
> 317.569.4201 Fax
> dennis.heim at cdw.com*
> *cdw.com/content/solutions/unified-communications/<http://www.cdw.com/content/solutions/unified-communications/>
> ****
>
> ** **
>
> *From:* cisco-voip-bounces at puck.nether.net [mailto:
> cisco-voip-bounces at puck.nether.net] *On Behalf Of *Abebe Amare
> *Sent:* Tuesday, February 07, 2012 4:10 AM
> *To:* cisco voip
> *Subject:* [cisco-voip] intercluster trunk over IPSec VPN****
>
> ** **
>
> Dears,
>
> I have configured an Inter-Cluster trunk from CUCM to another site with
> CUCME. There is an IPSec L2L VPN terminating at ASA 5500 firewall on both
> ends
>
> CUCM --->ASA 5540--->Internet <---ASA 5510<---CUCME
>
> On the ASA,the IPSec tunnel is terminated after 30 minute of inactivity
> (default) which is causing a problem. When a phone in one site tries to
> call another phone in the other site there is a noticeable gap before
> actual conversation is heard over the phone. Once conversation starts,
> there is no delay or break in audio. Has anyone faced this issue?
>
> best regards,
>
> Abebe****
>
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