Subject: RE: [NSIS] comments Issue (53) included in draft-ietf-nsis-req-01

From: "Freytsis, Ilya" <[email-masked]>
Date: Fri, 3 May 2002 17:03:39 -0400

Georgios,

In my understanding the recoverable error is a condition when the danger of
degradation (or actual short term degradation) of the provided QoS was
overcome by the network (QoS controllers). If I am correct could you explain
what is potential value to notify about this condition QI or other QC.

Regards,
Ilya

-----Original Message-----
From: Georgios Karagiannis (ELN)
[mailto:[email-masked]]
Sent: Monday, April 22, 2002 4:46 AM
To: 'Marcus Brunner'
Cc: [email-masked]'
Subject: [NSIS] comments Issue (53) included in draft-ietf-nsis-req-01

Hi Marcus

Please receive my comments on Issue (53) included in the
NSIS WG draft: draft-ietf-nsis-req-01.txt

Comment on Issue (53):

>   53) (OPEN) add req 5.1.16. of draft-partain-...-00  Error handling
>   and redundancy considerations
>   Border nodes should be able to notify the users if there is an error
>   inside the network. There are two types of network errors:
>   - Recoverable errors: this type error can be locally repaired
>     by the network nodes. The network nodes do not have to
>     notify the users of the error immediately.
>   - Unrecoverable errors: the network nodes cannot handle this
>     type of error, and have to notify the users as soon as
>     possible.
>   Comments:
>   1) notification of user in case of unrecoverable errors (has been
>   done by notification req, or will be done by asynch notification
>   2) recoverable error (might need to be added) req 5.3.4 is going
>   into this direction

[GK] I propose that both types of errors (recoverable, unrecoverable)
[GK] should be explained and included in Section 5.3.4.
>   3) what does this mean for different parts of the network
>   in different parts of the network)

[GK] Any QoS Controller should be able to notify these errors to the QoS
[GK] Initiator.
>   4) hop-by-hop? OR right to the end?

[GK] It is not hop by hop, but QoS controller to QoS initiator;

Best regards,
Georgios

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