| rfc9892v3.txt | rfc9892.txt | |||
|---|---|---|---|---|
| skipping to change at line 94 ¶ | skipping to change at line 94 ¶ | |||
| specification does not include any flow identification beyond DLEP | specification does not include any flow identification beyond DLEP | |||
| endpoints, i.e., flows are identified based on their DLEP endpoint. | endpoints, i.e., flows are identified based on their DLEP endpoint. | |||
| This document defines DLEP Data Item formats that provide flow | This document defines DLEP Data Item formats that provide flow | |||
| identification on a more granular basis. Specifically, it enables a | identification on a more granular basis. Specifically, it enables a | |||
| router to use traffic flow classification information provided by the | router to use traffic flow classification information provided by the | |||
| modem to identify traffic flows based on a combination of information | modem to identify traffic flows based on a combination of information | |||
| found in a data plane header. (For general background on traffic | found in a data plane header. (For general background on traffic | |||
| classification, see Section 2.3 of [RFC2475].) The Data Item is | classification, see Section 2.3 of [RFC2475].) The Data Item is | |||
| structured to allow for the use of the defined traffic classification | structured to allow for the use of the defined traffic classification | |||
| information with applications such as credit window control as | information with applications such as credit window flow control as | |||
| specified in [RFC9893]. [RFC9893] provides an example of combining | specified in [RFC9893]. [RFC9893] provides an example of combining | |||
| traffic classification and credit window flow control. | traffic classification and credit window flow control. | |||
| This document defines traffic classification based on a DLEP | This document defines traffic classification based on a DLEP | |||
| destination and flows identified by either Differentiated Services | destination and flows identified by either Differentiated Services | |||
| Code Points (DSCPs) [RFC2475] or IEEE 802.1Q Ethernet Priority Code | Code Points (DSCPs) [RFC2475] or IEEE 802.1Q Ethernet Priority Code | |||
| Points (PCPs) [IEEE8021Q]. The defined mechanism allows for flows to | Points (PCPs) [IEEE8021Q]. The defined mechanism allows for flows to | |||
| be described in a flexible fashion and, when combined with | be described in a flexible fashion and, when combined with | |||
| applications such as credit window control, allows credit windows to | applications such as credit window flow control, allows credit | |||
| be (1) shared across traffic sent to multiple DLEP destinations and | windows to be (1) shared across traffic sent to multiple DLEP | |||
| as part of multiple flows or (2) used exclusively for traffic sent to | destinations and as part of multiple flows or (2) used exclusively | |||
| a particular destination and/or belonging to a particular flow. The | for traffic sent to a particular destination and/or belonging to a | |||
| extension also supports the "wildcard" matching of any flow (DSCP or | particular flow. The extension also supports the "wildcard" matching | |||
| PCP). Traffic classification information is provided such that it | of any flow (DSCP or PCP). Traffic classification information is | |||
| can be readily extended to support other traffic classification | provided such that it can be readily extended to support other | |||
| techniques or can be used by extensions that are not related to | traffic classification techniques or can be used by extensions that | |||
| credit windows, such as the extension defined in [RFC8651] or even | are not related to credit windows, such as the extension defined in | |||
| 5-tuple IP flows. | [RFC8651] or even 5-tuple IP flows. | |||
| This document defines support for traffic classification using a | This document defines support for traffic classification using a | |||
| single new Data Item (see Section 2.1) for general support and | single new Data Item (see Section 2.1) for general support and | |||
| defines two new Sub-Data Items to support identification of flows | defines two new Sub-Data Items to support identification of flows | |||
| based on DSCPs and PCPs (see Sections 2.2 and 2.3). | based on DSCPs and PCPs (see Sections 2.2 and 2.3). | |||
| 1.1. Key Words | 1.1. Key Words | |||
| The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", | The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", | |||
| "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and | "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and | |||
| End of changes. 2 change blocks. | ||||
| 11 lines changed or deleted | 11 lines changed or added | |||
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