RE: Reflecting new-MAM/SAM definition in diff-te drafts
"Ash, Gerald R (Jerry), ALABS" <[email protected]>
| Newsgroups | gmane.ietf.tewg |
|---|---|
| Message-ID | <[email protected]> |
Francois, All, > I've been using "Reserved" and "Normalised" as per their definitions in > the proto draft, the RDM draft and the MAM draft. > > Quoting from these drafts: > > ================================== > - "Reserved(CTc)": For a given Class-Type CTc ( 0 <= c <= MaxCT ) ,let > us define "Reserved(CTc)" as the sum of the bandwidth reserved by all > established LSPs which belong to CTc. > - Normalised(CTc) : let us define "Normalised(CTc)" as > "Reserved(CTc)/LOM(c)", where LOM (c) is the Local Overbooking > Multiplier for CTc defined in [DSTE-PROTO]. > ===================================== > > What that means is that "Reserved(CTc)" does factor in the overbooking > method which is referred to as "LSP/link size overbooking" method and is > the overbooking method commonly used in TE networks. However, it does > NOT factor in the optional "Local Overbooking Multiplier" method. > > "Normalised(CTc)" factors-in both the "LSP/link size overbooking" and > the optional "Local Overbooking Multiplier" method. Thank you for reviewing this. I had not appreciated that 'Reserved(CTc)' is actually a normalized quantity, normalized by the 'LSP/link size overbooking multiplier' (LSOM). Just to further clarify, in terms of the actual bandwidth requested, I suppose this relationship must hold: Reserved(CTc) = Bandwidth-Requested(CTc)/LSOM where Bandwidth-Requested(CTc): For a given Class-Type CTc ( 0 <= c <= MaxCT ), define "Bandwidth-Requested(CTc)" as the sum of the bandwidth requested by all established LSPs which belong to CTc. Is that correct? If so, then 'Reserved(CTc)' is also a 'normalized' quantity, but this time it is normalized by the LSOM, right? Thanks for the clarifications, Jerry