RE: access request initialed by other sources than PEPs in COPS-P R

["Kwok-Ho Chan" <khchan@nortelnetworks.com>]

Just my two cents:
The COPS-PR document was not clear on this point because this depends
on
what the trigger is.  For example, if the trigger is from a Call
Server handling out
of band signaling, like H.323, it will be up to the out-of-band signaling
protocol/trigger
to provide the information to the PDP to resolve which PEP/PIB the
trigger will affect.
When this was written, it was intended to not limit to a specific kind of
trigger, hence
may not be clear on where/how the resolution information comes 
from.
The user of this feature will need to indicate what is the trigger and
what info the trigger
need to carry to do this resolution.
Also think of RSVP as a trigger that may affect the current installed
policy at a PEP.
RSVP contains the info that allows the resolution (and it also most
likely happens
on the same PEP as in-band-signaling when COPS-RSVP is used, but this is
viewed
as out-of-band from COPS-PR's prospective).
-- Kwok --


At 09:49 AM 10/24/00 -0500, Jaseemuddin, Muhammad wrote:

For time of day its ok, because policy rules may have temporal conditions attached to them. But, for other external triggers, how would the triggers identify the PEPID and the PIB that will be affected? It is not very clear from the PR draft at least.

- Muhammad Jaseemuddin

-----Original Message----- From:   Rawlins, Diana [SMTP:Diana.Rawlins@wcom.com] Sent:   Tuesday, October 24, 2000 9:49 AM To:     'Weilin Zeng'; rap@ops.ietf.org Subject:        RE: access request initialed by other sources than PEPs in COPS-P R

Weilin,   Yes, the PDP can detect external events and decide what policy decisions need to be made for what PEP. A simple example is Time of Day. The policy for filter markers may change at 6PM. The PDP implementation has rules to determine which PEP's are affected by the Time of Day event and changes policy accordingly.   -Diana  
-----Original Message----- From: Weilin Zeng [mailto:wzeng@ics.uci.edu] Sent: Monday, October 23, 2000 9:41 PM To: rap@ops.ietf.org Subject: access request initialted by other sources than PEPs in COPS-PR

Hi,     I encountered a problem when reading the COPS-PR. In Section 6(p27), the doc state that there is a case that access requests to the policy server can be initiated by other sources besides the PEPs. I think if the PEP don't initialize the request, the PDP cannot identify the PEP and cannot send the policy decision to PEP. Can anyone give me an explanation? Can this case be handled by COPS?       Thanks   Weilin