Capacity units

[carloperocchio]

Questions and answers discussion: Italo Busi, Sergio Belotti, Daniele Ceccarelli, Francesco Lazzeri, Gianmarco Bruno, Carlo Perocchio Monday, December 05, 2016

Q: Is requested capacity in byte/sec? What about other technologies like WDM or OTN? How coordinate it with te-bandwidth in te-topology?

R: Under discussion (import from RSVP model).

[tsaad-dev]

for MPLS/packet, it is defined in ietf-rsvp-te-mpls.yang. for other technologies need to define in respective module for otn/wdm

[sergiobelotti]

In te-types there is the generic way to express bw: typedef te-bandwidth { type string { pattern '0xX|'

• '1(.([\da-fA-F]{0,5}[02468aAcCeE]?)?)?pP?(12[0-7]|'
• '1[01]\d|0?\d?\d)?)|0[xX][\da-fA-F]{1,8}|\d+'
• '(,(0xX|'
• '1(.([\da-fA-F]{0,5}[02468aAcCeE]?)?)?pP?(12[0-7]|'
• '1[01]\d|0?\d?\d)?)|0[xX][\da-fA-F]{1,8}|\d+))'; } description "This is the generic bandwidth type that is a string containing a list of numbers separated by commas, with each of these number can be non-negative decimal, hex integer, or hex float: (dec | hex | float)[(','(dec | hex | float))] For packet switching type, a float number is used, such as 0x1p10. For OTN switching type, a list of integers can be used, such as '0,2,3,1', indicating 2 odu0's and 1 odu3. For DWDM, a list of pairs of slot number and width can be used, such as '0, 2, 3, 3', indicating a frequency slot 0 with slot width 2 and a frequency slot 3 with slot width 3."; } // te-bandwidth

There has been concerns (e.g. for OTN) highlighted by Francesco . Shall we consider this as closed with this generic definition? (used also in teas -topo)

[italobusi]

It would be simpler if we can propose an alternative solution with a generic container which can be augmented with technology-specific bandwidth information

Let's keep the issue open and prepare an alternative solution for discussion with TE Topology and TE Tunnel authors

[italobusi]

I think that this issue has been closed with the definition of the te-bandwidth grouping in te-types which is used by the Path Computation RPC

@carloperocchio : please check