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Upper layer in transit router

  • From: Aditya M Thomas <addy@sasken.com>
  • Date: Fri, 21 Dec 2001 12:01:36 +0530
  • CC: mpls@UU.NET, mpls-ops@mplsrc.com
  • Organization: Sasken Communication Technologies Ltd.
  • User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.4) Gecko/20011019 Netscape6/6.2


hi ashwin,

When Path messages are sent over IP, the Router Alert option is set, to 
inform transit routers to remove the packet from the forwarding path and 
give it to higher layer.

Over MPLS, the Router Alert Label (value 1) will have to be used, to 
perofrm a similar functionality.

HTH,
aditya.


Ashwin C. Prabhu wrote:

> 
> Hello
> 
>     Can anyone point out how does the label switched message in the
>     transit router recognize the upper layer ( IPV4, IPV6 or any other )
>    ( eg:- The Path message which is being label switched ).
> 
> 
> Thanks
> Ashwin
>  



-- 
Aditya Thomas,
Software Engineer,
Sasken Communication Technologies Ltd.,
Bangalore,India.
Tel:080-5355501 ext:8249