[cisco-voip] Route Pattern / List / Group problems with ATT'sSoftware Defined Network

[Wes Sisk]

Justin,

The logic is supposed to be built into CM that if a particular IE is not
supported under that trunk type, the IE should not be sent.

What i'm getting at is no, there is no configuration to block the IE,
however, if you choose (and negotiate with carrier) a different switch type
that does not support that IE, you can have CM automatically drop the IE.

In the NSFProtocolServiceMap, TypePriProtocol, and TypeNSFService tables in
the CCM database you can see which IE's are permitted on which trunk types.

Looks like SDN is type 18 and database shows that SDN only supported on
protocols 2,3,6 which are:
4ess
5e8 Teleos
PRI 5e9

I am using 4.1(3) and have to select a 'network service protocol' before i
can select a specific network service.  Do you have only the service 4ess
selected and confiugred? or do you have anything configured under NI2?

/Wes

-----Original Message-----
From: Justin Steinberg [mailto:jsteinberg at gmail.com]
Sent: Tuesday, September 13, 2005 1:08 PM
To: Wes Sisk
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] Route Pattern / List / Group problems with
ATT'sSoftware Defined Network


I think that is what my problem is.  The ATT LD circuits use 4ESS (and
SDN IE) while the local circuits generally use NI2 (and won't process
calls with SDN IE).

My goal is to have LD route patterns fail over from the SDN IE enabled
4ESS circuits to the NI2 circuits for capacity and redundancy.

I can't seem to figure out how I would do that with RP->Route
List->Route Group.  It seems that the only place I can configure SDN
is the RP.

Justin

On 13/09/05, Wes Sisk <wsisk at cisco.com> wrote:
> SDN IE's should only be sent over trunks that use ISDN protocols that have
> that SDN IE as a valid IE
>
> what ISDN protocols are in use on local vs LD trunks?
>
> /Wes
>
> -----Original Message-----
> From: cisco-voip-bounces at puck.nether.net
> [mailto:cisco-voip-bounces at puck.nether.net]On Behalf Of Justin Steinberg
> Sent: Tuesday, September 13, 2005 11:44 AM
> To: cisco-voip at puck.nether.net
> Subject: [cisco-voip] Route Pattern / List / Group problems with
> ATT'sSoftware Defined Network
>
>
> We want to configure our LD route patterns to include our local PRI
> circuits so that long distance calls can still be completed in the
> event that our LD PRI circuits are down.
>
> All of our branch offices use CCM 3.3(3) with MGCP gateways with local
> PRIs from a local LEC and LD PRIs from ATT.  The LD PRIs with ATT are
> configured with ATT's Software Defined Network (which makes
> interoffice calls cheaper by sending them inbound on the LD circuits,
> keeping them on ATT's network from origination to termination.)
>
> For this to work, we have to configure our LD route patterns with
> "ISDN Network-Specific Facilities Information Element" specifically:
> Network Service Protocol: PRI 4ESS
> Network Service: Software Defined Network
>
> This works fine if the associated route lists/groups are ATT's
> circuits.  But if we put in LEC ciruits in the mix for redundancy they
> bug out with the extra info and will not process the calls with the
> SDN information.
>
> I was hoping to be able to override the route pattern information on
> the MGCP gateway config but those are not there for ISDN service
> options.
>
> Anyway for me to do this?  I'm thinking maybe a duplicate route
> pattern in another partition without the extra ISDN information that
> is lower in priority in the CSS. I'm just not sure whether CCM will
> work like that if the first route pattern can't complete calls.
>
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