Re: Status if M3UA after DUNA from SG

 Hi,

+------+      +-----------+
| STP1 |---X--|   SG1     |
+------+      |           |
 OPC = 1.1.1  |           |
              | +--------+|    +----------+
+------+      | |  SGP 1 ||----|  ASP 1   |
| STP2 |---X--| +--------+|    +----------+
+------+      |           |
OPC = 1.1.2   |OPC = 2.2.2|
              |           |
+------+      |           |
| STP3 |------|           |
+------+      +-----------+
OPC = 1.1.3

In the above diagram, SG1 determines STP1 ans STP2 are not available.

If SG generastes a DUNA message for the above diagram,
which are the APC values in the messages?

-- 
Br,
Ambika Prasad Tripathy
Nethawk Networks
Cell: +91-94375 47730






On 4/6/07, Ambika Tripathy <[email protected]> wrote:
>
> Thanks Zhou,
>
> One more question.
>
> If at the case ASP sends data to SG, then what should the SG will do?
>                        ------- Discard the data and generate Error?
>
>
>
>
>
>
> On 4/6/07, ZHOU Minggang <[email protected]> wrote:
> >
> >  Hi Ambika,
> > RFC 4666 said:
> >     If there is no alternate route via another SG, the MTP3-User
> >    at the ASP is expected to stop traffic to the affected destination
> >    via the SG as per the defined MTP3-User procedures.
> > So we should indicate the ULP at ASP to stop traffic if any alternative
> > SG not available.
> >
> > In this case, primitive "MTP-PAUSE" will be used to indicate "Users".
> >
> > Best regards,
> > Zhou Minggang
> >
> >
> >  ------------------------------
> > *From:* Ambika Tripathy [mailto:[email protected]]
> > *Sent: *Friday, April 06, 2007 12:37 PM
> > *To:* sigtran; bidulock
> > *Subject:* [Sigtran] Status if M3UA after DUNA from SG
> >
> >
> >  Hi Folks,
> >
> >      I have one doubt regarding the DUNA message communication in M3UA.
> >
> > My Question is if we received DUNA message from the peer SGP, should we
> > indicate the ULP at ASP to stop traffic, if any alternative SG not
> > available.
> >
> > If this is the case then, is there any primitive to do so??
> >
> > --
> > Br,
> > Ambika Prasad Tripathy
> > Nethawk Networks
> > Cell: +91-94375 47730
> >
>
>
>
> --
> Br,
> Ambika Prasad Tripathy
> Nethawk Networks
> Cell: +91-94375 47730
>



-- 
Br,
Ambika Prasad Tripathy
Nethawk Networks
Cell: +91-94375 47730

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