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[altq 371] DCLASS object?
Can someone help me regarding the DCLASS object reservation?
(DCLASS is a proposed mechanism to obtain DSCPs (DiffServe Code Points)
from a DiffServe domain by means of - extended - RSVP signalling)
Does the current (or any) implementation of ALTQ-RSVP produce/provide
this DCLASS object?
Replies would be much appreciated...
PS. I posted a relevant question to the rsvp-isi distribution list too
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RE: RSVP Diffserv and DCLASS
Fri, 10 Mar 2000 08:49:30 -0800
Yoram Bernet <yoramb@Exchange.Microsoft.com>
Vangelis Pappas-Katsiafas <firstname.lastname@example.org>, email@example.com,
I am not aware that FreeBSD (as a router) generates a DCLASS object.
are routers/switches available form several network equipment vendors
(including Cisco) that generate the DCLASS object. Note that Win2K hosts
will by default mark packets with a diffserv mark based on the admitted
service. The DCLASS object can override the default mapping from service
type to DSCP, but is not required. This can all be demo'd using
or Phone Dialer (both of which are included in the box).
Let me know if I can be of further assistance.
> -----Original Message-----
> From: Vangelis Pappas-Katsiafas [mailto:firstname.lastname@example.org]
> Sent: Friday, March 10, 2000 8:40 AM
> To: isi-rsvp@ISI.EDU; rsvp-test@ISI.EDU
> Subject: RSVP Diffserv and DCLASS
> I'm trying to use RSVP and Diffserve together, so an RSVP message will
> go through an RSVP unaware, Diffserve domain but there will
> be a mapping
> of the RSVP flowspec to a suitable Diffserve class.
> I'm trying to use Win2000 clients (sender, receiver) which use RSVP
> signalling to obtain the Diffserve class (the codepoint - DSCP) from a
> Diffserve network lying between them. (So the sender can actually mark
> the packets with suitable for the flowspec DSCP.)
> I have set up a FreeBSD 3.2 network between them with ALTQ
> 2.0 and your
> distribution of RSVP.
> Does your implemetation support the DCLASS object. Can I
> obtain it from
> RSVP signalling?
> How RSVP can work with Diffserve?
> Thank you for your time,