RE: [PWE3] WG LC: draft-ietf-pwe3-pw-atm-mib-02.txt
"Ronen Solomon" <RonenS@corrigent.com> Tue, 20 March 2007 19:40 UTC
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Subject: RE: [PWE3] WG LC: draft-ietf-pwe3-pw-atm-mib-02.txt
Date: Tue, 20 Mar 2007 21:38:28 +0200
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From: Ronen Solomon <RonenS@corrigent.com>
To: "Thomas D. Nadeau" <tnadeau@cisco.com>
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Cc: Danny McPherson <danny@tcb.net>, Orly Nicklass <orly_n@rad.com>, "pwe3 WG ((((((((E-mail))))))))" <pwe3@ietf.org>, venkatesan.marichetty@marconi.com, senthilkumar.sathappan@marconi.com
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-----Original Message----- From: Thomas D. Nadeau [mailto:tnadeau@cisco.com] Sent: Tuesday, March 20, 2007 5:26 PM To: Ronen Solomon Cc: senthilkumar.sathappan@marconi.com; venkatesan.marichetty@marconi.com; Orly Nicklass; pwe3 WG ((((((((E-mail)))))))); Danny McPherson Subject: Re: [PWE3] WG LC: draft-ietf-pwe3-pw-atm-mib-02.txt On Mar 20, 2007:11:17 AM, at 11:17 AM, Ronen Solomon wrote: > comments > > 1. Need to add a separate ATM transparent cell mode table > configuration as VPI and VCI are not applicable rather then use the > existing VPI/VCI 1:N tables. The current MIB uses the VPI/VCI tables > with 0xFFFFFF which is not adequate for a management system. Please make specific suggestions. This will speed the process along, and also allow the WG to comment on the specifics of what you are asking. ----------------------------------------- pwAtmTable index by pwIndex "This table specifies the information for an ATM PW to be carried over PSN. An entry is created in this table for every entry in the pwTable with a pwType equal to type 0x0003, ATM transparent cell transport ." PwAtmEntry ::= SEQUENCE { PwAtmIndex RowPointer, PwAtmIfIndex InterfaceIndex, pwAtmOutboundTrafficParamDescr RowPointer, pwAtmInboundTrafficParamDescr RowPointer pwAtmRowStatus RowStatus } Row status is used to modify an entry. ----------------------------------------------------------- > 2. pwAtmCfgFarEndMaxCellConcatenation should also be used as a > read-write object if LDP is not used. The reason is that this > parameter should allow the local node to calculate protocol overhead > at the egress direction of the PW (i.e. direction from the remote PE > to the local PE). OK. > 3. pwAtmCfgTimeoutMode should be configurable timer. Different > application requires different timeouts such as AAL1 requires > different timeout then AAL2 data traffic. If HW does not support such > functionality then a default vlaue should be applied. OK. ---------------------------- We may have the current parameter foir enable/diable and when enabled the following configured the timeout with a DEFVAL. pwAtmCfgTimeout SYNTAX Unsigned32 (100..10000) UNITS "microseconds" MAX-ACCESS read-write STATUS current DESCRIPTION "" DEFVAL { 100 } ------------------------------------------ > 4. Suggested to ATM PW Outbound Perf Table a new parameter "Average > concatenated cells" , which will allow the operator the analyze what > is the average number of cells that are concatenated into a single > frame. > This has influence on bandwidth usage due to protocol overhead. I do not like this object, at least as a mandatory one, as it is largely dependent on the local node computing this average. I would rather than the NMS do this based on gathering statistics given that some of the PW hardware being used is quite low-end, and the CPUs are close to %100 dedicated for packet forwarding. -------------------------------- I can suggest a simple moving averaging (w/o history data or CPU intensive) method ==> AvergaeN[i] = (1-X) * AvergaeN[i-1] + (X) * CurrentN[i] where X is implementation specific with value of 0<X<1. ---------------------------------------- Ronen --Tom > > Ronen > > > > > -----Original Message----- > From: Danny McPherson [mailto:danny@tcb.net] > Sent: Monday, March 05, 2007 7:24 AM > To: pwe3 WG ((((((((E-mail)))))))) > Subject: [PWE3] WG LC: draft-ietf-pwe3-pw-atm-mib-02.txt > > > Folks, > Please consider today the beginning of a 3 week WG last call for this > document. Please direct any comments with this revision of the draft > to the authors and PWE3 mailing list. > > Thanks! > > -danny & Stewart > > > Begin forwarded message: > >> From: Internet-Drafts@ietf.org >> Date: February 13, 2007 1:50:03 PM MST >> To: i-d-announce@ietf.org >> Cc: pwe3@ietf.org >> Subject: I-D ACTION:draft-ietf-pwe3-pw-atm-mib-02.txt >> Reply-To: internet-drafts@ietf.org >> >> A New Internet-Draft is available from the on-line Internet-Drafts >> directories. >> This draft is a work item of the Pseudowire Emulation Edge to Edge >> Working Group of the IETF. >> >> Title : Managed Objects for ATM over Packet Switched > Network (PSN) >> Author(s) : T. Nadeau, et al. >> Filename : draft-ietf-pwe3-pw-atm-mib-02.txt >> Pages : 37 >> Date : 2007-2-13 >> >> This memo defines an experimental portion of the Management >> Information Base (MIB) for use with network management protocols >> in >> the Internet community. In particular, it describes managed >> objects >> for modeling ATM Pseudowire (PW) carrying ATM cells over Packet >> Switch Network (PSN) as defined in the PWE3 [ATMENCAP]and >> [ATMTRANS]. >> >> A URL for this Internet-Draft is: >> http://www.ietf.org/internet-drafts/draft-ietf-pwe3-pw-atm-mib-02.txt >> >> To remove yourself from the I-D Announcement list, send a message to >> i-d-announce-request@ietf.org with the word unsubscribe in the body >> of > >> the message. >> You can also visit https://www1.ietf.org/mailman/listinfo/I-D- >> announce >> to change your subscription settings. >> >> Internet-Drafts are also available by anonymous FTP. Login with the >> username "anonymous" and a password of your e-mail address. After >> logging in, type "cd internet-drafts" and then "get >> draft-ietf-pwe3-pw-atm-mib-02.txt". >> >> A list of Internet-Drafts directories can be found in >> http://www.ietf.org/shadow.html or >> ftp://ftp.ietf.org/ietf/1shadow-sites.txt >> >> Internet-Drafts can also be obtained by e-mail. >> >> Send a message to: >> mailserv@ietf.org. >> In the body type: >> "FILE /internet-drafts/draft-ietf-pwe3-pw-atm-mib-02.txt". >> >> NOTE: The mail server at ietf.org can return the document in >> MIME-encoded form by using the "mpack" utility. To use this >> feature, insert the command "ENCODING mime" before the "FILE" >> command. To decode the response(s), you will need "munpack" or >> a MIME-compliant mail reader. 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- [PWE3] I-D ACTION:draft-ietf-pwe3-pw-atm-mib-02.t… Internet-Drafts
- [PWE3] WG LC: draft-ietf-pwe3-pw-atm-mib-02.txt Danny McPherson
- RE: [PWE3] WG LC: draft-ietf-pwe3-pw-atm-mib-02.t… Ronen Solomon
- Re: [PWE3] WG LC: draft-ietf-pwe3-pw-atm-mib-02.t… Thomas D. Nadeau
- RE: [PWE3] WG LC: draft-ietf-pwe3-pw-atm-mib-02.t… Ronen Solomon
- RE: [PWE3] WG LC: draft-ietf-pwe3-pw-atm-mib-02.t… Orly Nicklass
- RE: [PWE3] WG LC: draft-ietf-pwe3-pw-atm-mib-02.t… Ronen Solomon
- RE: [PWE3] WG LC: draft-ietf-pwe3-pw-atm-mib-02.t… Suberri, Moshe
- RE: [PWE3] WG LC: draft-ietf-pwe3-pw-atm-mib-02.t… Orly Nicklass
- Re: [PWE3] WG LC: draft-ietf-pwe3-pw-atm-mib-02.t… Thomas D. Nadeau
- RE: [PWE3] WG LC: draft-ietf-pwe3-pw-atm-mib-02.t… Suberri, Moshe
- RE: [PWE3] WG LC: draft-ietf-pwe3-pw-atm-mib-02.t… Orly Nicklass