RE: [ipcdn] pktcSigDevStandardRingCadence and pktcSigDevRingSplas hCadence are redundant
"Wim De Ketelaere" <deketelaere@tcomlabs.com> Mon, 08 March 2004 06:48 UTC
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From: Wim De Ketelaere <deketelaere@tcomlabs.com>
To: 'Beacham Gordon-CGB005' <Gordon.Beacham@motorola.com>, 'Eugene Nechamkin' <enechamkin@broadcom.com>, ipcdn@ietf.org
Subject: RE: [ipcdn] pktcSigDevStandardRingCadence and pktcSigDevRingSplas hCadence are redundant
Date: Mon, 08 Mar 2004 07:45:08 +0100
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Hi Gordon, Yes, the more I look at it, the more I like it, it makes everything much easier, more uniform and cleaner I think ! Thanks, Best regards, Wim -----Original Message----- From: Beacham Gordon-CGB005 [mailto:Gordon.Beacham@motorola.com] Sent: 06 March 2004 01:02 To: 'Wim De Ketelaere'; Beacham Gordon-CGB005; 'Eugene Nechamkin'; ipcdn@ietf.org Subject: RE: [ipcdn] pktcSigDevStandardRingCadence and pktcSigDevRingSplas hCadence are redundant Wim, Thank you for your comments. If I understand proposed solution correctly, I believe you are suggesting a change could be made to the TC as follows: PktcRingCadence ::= TEXTUAL-CONVENTION STATUS current DESCRIPTION This object represents a ring cadence and repeatable characteristics. The first two octets of the bit string represent the length in bits of the duration of the cadence. The third octet is used to represent repeatable characteristics. 00000000 means repeatable, and 10000000 means non repeatable. Each Bit after the third octet represents 50 ms and 1 represents ring and 0 represents silent. The first bit of the fourth octet is the first bit of the ring cadence. A total of 264 Bits can be set to represent 13200 ms of total cadence cycle. SYNTAX OCTET STRING (SIZE(4..36)) The following object descriptions would change (i.e., remove the duration and repeatable characteristics sentences) and the DEFVAL would be removed: pktcSigDevRgCadence pktcSigDevRsCadence pktcSigDevR0Cadence pktcSigDevR1Cadence pktcSigDevR2Cadence pktcSigDevR3Cadence pktcSigDevR4Cadence pktcSigDevR5Cadence pktcSigDevR6Cadence pktcSigDevR7Cadence The following object SYNTAX would change to use the PktcRingCadence TC: pktcSigDevRingCadence The following objects could then be deleted: pktcSigDevStandardRingCadence -> would now be covered by pktcSigDevRgCadence (L package) pktcSigDevRingSplashCadence -> would now be covered by pktcSigDevRsCadence (L package) You could then update your "Clarification of L Package for Euro-PacketCable Document v6.0 (2004/1/20)" to reflect these changes, if there is agreement. Gordon -----Original Message----- From: Wim De Ketelaere [mailto:deketelaere@tcomlabs.com] Sent: Monday, March 01, 2004 12:07 AM To: 'Beacham Gordon-CGB005'; 'Eugene Nechamkin'; ipcdn@ietf.org Subject: RE: [ipcdn] pktcSigDevStandardRingCadence and pktcSigDevRingSplas hCadence are redundant Hi Gordon, I asked you the difference between those two MIB-object a long time ago, and you pointed out that a different object was needed for Europe because of the difference in total time and needed granularity. If the total duration difference needs to be supported, it needs to be supported without the need for the E-package. As it is important that basic calls can be supported without an MTA that support the E-package, and you clarified that for Europe a longer cadence is needed. Based on that it seems the normal way to go to have the two extra MIB-objects. By that a CMS can support both European and US market without any changes on the CMS ! Please note that for now the E-package is still optional, as far as I know no CMS supports it ! A solution would be to have the definition adjusted for the MIB so it supports both US and European requirements: the duration of the cadence can be adjusted by having leading zeroes. The total number of bits needs to be increased to support a longer maximum length, and more granularity (50 ms). This would mean that the pktcSigDevRgCadence and RsCadence and r0 to r7 take the definition of the for now European-only cadence. This allow the needed flexibility while having only one mib-object to specify the cadences. This can be done by adjusting the textual convention (PktcRingCadence) This would mean that an MTA can have exactly the same mapping from NCS to MIB for the L-package, independent of the region in which it will be used, and independent from possible E-package support. Thanks, Best regards, Wim -----Original Message----- From: Beacham Gordon-CGB005 [mailto:Gordon.Beacham@motorola.com] Sent: 27 February 2004 23:46 To: 'Eugene Nechamkin'; Beacham Gordon-CGB005; Wim De Ketelaere; ipcdn@ietf.org Subject: RE: [ipcdn] pktcSigDevStandardRingCadence and pktcSigDevRingSplas hCadence are redundant Exactly. This is precisely what the pktcSigDevRingCadenceTable object is defined to handle (international ring cadences to 13.2s) using the V5.x "cr(x)" mechanism noted in the object description. For example, an international operator could define cr5 for standard ring and cr9 for ring splash, etc for up to 128 international cadences. V5.x defined 128 possible ring cadences for international ring messages without concern for what those cadences are named. The 101 909-4 spec does not name these cadences either and the name should not be a concern for the MIB definitions. Gordon -----Original Message----- From: Eugene Nechamkin [mailto:enechamkin@broadcom.com] Sent: Friday, February 27, 2004 2:13 PM To: Beacham Gordon-CGB005; Wim De Ketelaere; ipcdn@ietf.org Subject: RE: [ipcdn] pktcSigDevStandardRingCadence and pktcSigDevRingSplas hCadence are redundant It's might also be worth noting that the "pktcSigDevRgCadence" and "pktcSigDevRsCadence" on one hand, and "pktcSigDevStandardRingCadence" and "pktcSigDevRingSplashCadence" - on the other have different requirement for the Cadence timing granularity, hence the "pktcSigDevRgCadence" and "pktcSigDevRsCadence" could not have been used to represent Euro-PC Cadence resolution requirement reflected in "pktcSigDevStandardRingCadence" and "pktcSigDevRingSplashCadence". Eugene. -----Original Message----- From: ipcdn-admin@ietf.org [mailto:ipcdn-admin@ietf.org]On Behalf Of Beacham Gordon-CGB005 Sent: Friday, February 27, 2004 1:59 PM To: 'Wim De Ketelaere'; Eugene Nechamkin; ipcdn@ietf.org Subject: RE: [ipcdn] pktcSigDevStandardRingCadence and pktcSigDevRingSplas hCadence are redundant Interesting. Thanks for pointing that out. However, I don't follow why the mapping has been made that way in the "Clarification of L Package for Euro-PacketCable Document v6.0 (2004/1/20)." The objects referenced in 2.19 and 2.21 for the L package rg and rs cadences are in the international group with a max cadence of 13.2s. The other distinctive ring cadences in the above document map to core L package objects r0..r7 with a max cadence of 6.0s. The cadence mapping seems to be inconsistent. I would have expected the 2.19 and 2.21 cadence for rg/rs to be mapped to the pktcSigDevRgCadence and pktcSigDevRsCadence core L package objects. International cadences would then be handled via the E package extensions and associated object (pktcSigDevRingCadenceTable). Wim, Can you comment/clarify why the rg/rs cadences are mapped to objects in the international group instead of the pktcSigDevRgCadence and pktcSigDevRsCadence objects? Thanks. Gordon -----Original Message----- From: Eugene Nechamkin [mailto:enechamkin@broadcom.com] Sent: Wednesday, February 25, 2004 5:21 PM To: Beacham Gordon-CGB005; ipcdn@ietf.org Subject: RE: [ipcdn] pktcSigDevStandardRingCadence and pktcSigDevRingSplashCadence are redundant > The pktcSigDevStandardRingCadence and pktcSigDevRingSplashCadence > objects are redundant. I am not sure I can completely agree with this statement (if I understand it correctly). Both of these objects are required for Euro-L-package, because of the way the RG and RS signalls are currently defined: For Euro-L-Package: - RG -> pktcSigDevStandardRingCadence - RS -> pktcSigDevRingSplashCadence The "pktcSigDevRingCadenceTable" contains the cadence values for the E-package. Having in mind that E-package is optional, and L-package is mandatory, I am not sure I understand how pktcSigDevStandardRingCadence and pktcSigDevRingSplashCadence can be "merged" into the "pktcSigDevRingCadenceTable". Or, are you suggesting that "pktcSigDevRingCadenceTable" should contain the RG and RS cadencies for Euro-L-Package along with the values for E-package? If yes, I think the proper mapping of the table indexes to the corresponding signal should be somehow defined, and corresponding modifications of the Euro-L-Package should also be put in place. Though from the MIB optimization stand point of view the proposed modification might make sense, however, from the currently imlemented and intended funtionality prospective it looks unnecessary (please correct me if my understanding of your proposal deviates from what you had in mind). Eugene Nechamkin, Broadcom Corp., ph: (604) 233-8500 -----Original Message----- From: ipcdn-admin@ietf.org [mailto:ipcdn-admin@ietf.org]On Behalf Of Beacham Gordon-CGB005 Sent: Wednesday, February 25, 2004 11:01 AM To: ipcdn@ietf.org Subject: [ipcdn] pktcSigDevStandardRingCadence and pktcSigDevRingSplashCadence are redundant The pktcSigDevStandardRingCadence and pktcSigDevRingSplashCadence objects are redundant. These objects are recommended to be deleted from the NCS Signaling MIB. The use of separate pktcSigDevStandardRingCadence and pktcSigDevRingSplashCadence objects is a carryover from the L line package and they are not needed in the E line package. Instead, normal ring and ring splash cadences can be defined using the pktcSigDevRingCadenceTable object. Gordon Beacham Digital Core Gateways, BCS Motorola, Inc. 858-404-2335 gordon.beacham@motorola.com _______________________________________________ IPCDN mailing list IPCDN@ietf.org https://www1.ietf.org/mailman/listinfo/ipcdn _______________________________________________ IPCDN mailing list IPCDN@ietf.org https://www1.ietf.org/mailman/listinfo/ipcdn _______________________________________________ IPCDN mailing list IPCDN@ietf.org https://www1.ietf.org/mailman/listinfo/ipcdn
- RE: [ipcdn] pktcSigDevStandardRingCadence and pkt… Beacham Gordon-CGB005
- RE: [ipcdn] pktcSigDevStandardRingCadence and pkt… Eugene Nechamkin
- RE: [ipcdn] pktcSigDevStandardRingCadence and pkt… Beacham Gordon-CGB005
- RE: [ipcdn] pktcSigDevStandardRingCadence and pkt… Kumar, Satish
- RE: [ipcdn] pktcSigDevStandardRingCadence and pkt… Eugene Nechamkin
- RE: [ipcdn] pktcSigDevStandardRingCadence and pkt… Beacham Gordon-CGB005
- RE: [ipcdn] pktcSigDevStandardRingCadence and pkt… Wim De Ketelaere
- RE: [ipcdn] pktcSigDevStandardRingCadence and pkt… Eugene Nechamkin
- RE: [ipcdn] pktcSigDevStandardRingCadence and pkt… Beacham Gordon-CGB005
- RE: [ipcdn] pktcSigDevStandardRingCadence and pkt… Eugene Nechamkin
- RE: [ipcdn] pktcSigDevStandardRingCadence and pkt… Wim De Ketelaere