Re: [manet] #8 (dymo): HopCount and alternate metrics in AODVv2
"manet issue tracker" <trac+manet@trac.tools.ietf.org> Tue, 23 December 2014 21:21 UTC
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Subject: Re: [manet] #8 (dymo): HopCount and alternate metrics in AODVv2
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#8: HopCount and alternate metrics in AODVv2 Changes (by charliep@computer.org): * status: new => closed * resolution: => fixed Comment: On 11/30/2012 11:58 AM, Charles E. Perkins wrote: > As mentioned in previous email, enabling alternate metrics has been > a topic often discussed in the MANET working group. There seems to > be wide recognition of the insufficiency of using !HopCount. However, > the selection of "best" route can be tricky, because that depends > on the application. Also, some considerations from > "draft-ietf-manet-olsrv2-metrics-rationale-01.txt" apply. > > If it is agreed that AODVv2 needs to enable specification for the > use of alternate routing metrics, there is a relatively straightforward > way to do it, as long as the purpose of doing so is also agreed as > above. > In the AODVv2 document, the main changes required are: > - include the following new section > - change discussion about !HopCount to instead refer to "Cost()" > - refer to a table of Metric Types (e.g., as in RFC 6551) > - use abstract functions "Cost()" and "!LoopFree()" > - allow for storage of multiple routes to the same destination > but which allow the metric type to identify different next hops. On 11/30/2012 6:21 PM, Abdussalam Baryun wrote: > Regarding the suggested main changes required, as one was for possible > of having multi-next-hop per dest, I am thinking to add another > requirement; > > - All intermediate routers in the path to destination should have same > metric type while forwarding packets to their nexthop, otherwise an > error reported. -- -------------------------------------+------------------------------ Reporter: charliep@computer.org | Owner: Charlie Perkins Type: enhancement | Status: closed Priority: major | Milestone: Component: dymo | Version: Severity: Active WG Document | Resolution: fixed Keywords: route metric, hop count | -------------------------------------+------------------------------ Ticket URL: <http://trac.tools.ietf.org/wg/manet/trac/ticket/8#comment:2> manet <http://tools.ietf.org/manet/>
- [manet] #8: HopCount and alternate metrics in AOD… manet issue tracker
- Re: [manet] #8: HopCount and alternate metrics in… JP Vasseur (jvasseur)
- Re: [manet] #8: HopCount and alternate metrics in… Henning Rogge
- Re: [manet] #8: HopCount and alternate metrics in… JP Vasseur (jvasseur)
- Re: [manet] #8: HopCount and alternate metrics in… manet issue tracker
- Re: [manet] #8: HopCount and alternate metrics in… Charles E. Perkins
- Re: [manet] #8 (dymo): HopCount and alternate met… manet issue tracker