Re: [netext] #7: Logical interface: UL/DL packet processing
"MELIA, TELEMACO (TELEMACO)" <telemaco.melia@alcatel-lucent.com> Tue, 15 March 2011 15:55 UTC
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From: "MELIA, TELEMACO (TELEMACO)" <telemaco.melia@alcatel-lucent.com>
To: netext issue tracker <trac+netext@zinfandel.tools.ietf.org>, "basavaraj.patil@nokia.com" <basavaraj.patil@nokia.com>
Date: Tue, 15 Mar 2011 16:57:02 +0100
Thread-Topic: [netext] #7: Logical interface: UL/DL packet processing
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Cc: "netext@ietf.org" <netext@ietf.org>
Subject: Re: [netext] #7: Logical interface: UL/DL packet processing
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Folks, reflecting the discussions in the team here is the proposed text to solve this issue. Let us know any problem you see with the proposed text. ===== 6.6. Logical Interface Forwarding Conceptual Data Structures The LIF should maintain the LIF and FLOW table data structures depicted in Figure 4 LIF TABLE FLOW table +===============================+ +===============================+ | PIF_ID | FLOW RoutingPolicies | | FLOW ID | PIF_ID | | | Home Network Prefix | +-------------------------------+ | | Link Layer Address | | FLOW_ID | PIF_ID | | | Status | +===============================+ +-------------------------------| | PIF_ID | FLOW RoutingPolicies | | | Home Network Prefix | | | Link Layer Address | | | Status | +-------------------------------+ | .... | .... | +===============================+ Figure 4 The LIF table maintains the mapping between the LIF and each PIF associated to the LIF (see P3). For each PIF entry the table should store the associated Routing Policies, the Home Network Prefix received during the SLAAC procedure, the configured Link Layer Address (as described above) and the Status of the PIF (e.g. active, not active). The method by which the Routing Policies are configured in the UE is out of scope of this document. It is however assumed that this method is in place and that these policies are configured in the LIF TABLE. The FLOW table allows a LIF to properly route each IP flow to the right interface (see P7). The LIF can identify flows arriving on its PIFs and can map them accordingly for transmitting the corresponding packets. For locally generated traffic (e.g. unidirectional outgoing flows, mobile initiated traffic, etc.), the LIF should perform interface selection based on the Flow Routing Policies. In case traffic of an existing flow is suddenly received from the network on a different PIF than the one locally stored, the LIF should interpret the event as an explicit flow mobility trigger from the network and it should update the PIF_ID parameter in the FLOW table. Similarly, locally generated events from the PIFs or configuration updates to the local policy rules can cause updates to the table and hence trigger flow mobility. -----Message d'origine----- De : netext issue tracker [mailto:trac+netext@zinfandel.tools.ietf.org] Envoyé : vendredi 4 mars 2011 00:03 À : MELIA, TELEMACO (TELEMACO); basavaraj.patil@nokia.com Cc : netext@ietf.org Objet : [netext] #7: Logical interface: UL/DL packet processing #7: Logical interface: UL/DL packet processing Uplink/downlink packet matching: Draft says the Logical interface should transmit uplink packets on the same physical interface on which the downlink packet was received for the particular prefix/flow. How does the logical interface associates an uplink packet to a downlink packet? -- ---------------------------------------+-------------------------------- ---------------------------------------+---- Reporter: basavaraj.patil@. | Owner: telemaco.melia@. Type: defect | Status: new Priority: major | Milestone: Component: Localized routing | Version: Severity: Active WG Document | Keywords: ---------------------------------------+-------------------------------- ---------------------------------------+---- Ticket URL: <http://trac.tools.ietf.org/wg/netext/trac/ticket/7> netext <http://tools.ietf.org/netext/>
- [netext] #7: Logical interface: UL/DL packet proc… netext issue tracker
- Re: [netext] #7: Logical interface: UL/DL packet … MELIA, TELEMACO (TELEMACO)
- Re: [netext] #7: Logical interface: UL/DL packet … pierrick.seite
- Re: [netext] #7: Logical interface: UL/DL packet … MELIA, TELEMACO (TELEMACO)
- Re: [netext] #7: Logical interface: UL/DL packet … MELIA, TELEMACO (TELEMACO)