Re: Peer liveliness

[suren <suren@intotoinc.com>]

Hi Ravi,
     It is good idea to find out whether the peer SA is dead or not. I 
support this and
     would like to see some draft in this regard.
Suren

At 10:35 AM 4/18/2003 +0530, Ravi wrote:

>  Hi,
>   I was going through several drafts related to peer liveliness. But, 
> some of practical
>   problems faced in actual deployment may not be solved by these proposals.
>   INITIAL_CONTACT Notification : It indicates that the Peer was dead and 
> cameback.
>   DPD:  Checks the liveliness of the peer.
>   I feel, we require interoperable solution to check liveliness of SA ie 
> Dead Peer SA detection
>  (DPSD).
>   DPD specification can be enhanced to achieve this.
>   Protocol-ID and SPI fields can be made mandatory.
>   Protocol-ID can be ESP/AH/IKE.
>   SPI : In case of IKE, it could be cookies and in case of ESP/AH, it is 
> SPI (inbound SA's SPI
>        on the peer).
>   If peer is not dead, but SAs were deleted either due to temporary 
> failure OR due to
>   restarting of some processes in the system can be detected with this 
> mechanism.
>   Does this makes sense? If so, I can contribute text to this effect.
>Regards,
>Ravi
>
>--
>
>
>The views presented in this mail are completely mine. The company is not 
>responsible for whatsoever.
>
>----------
>Ravi Kumar CH
>Rendezvous On Chip (i) Pvt Ltd
>Hyderabad, India
>Ph: +91-40-2335 1214 / 1175 / 1184
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