hi,
i'm trying to user mutliple interfaces with the adhoc routing agent
"noah" - which stands for "NO AdHoc routing". i use only one mobile
node, and some basestations with foreign agents, an home agent and a
corresponding node.
as noah doesn't need a routing table, i use a map for storing the
interface. i use the "prev_hop" field in the common-header to associate
the interface.
in the "forwardPacket" function - which is for unicast transmissions - i
use the information stored in the map to send the packets through the
correct interface. this works fine with interface 1, but fails vor
interface 0. all packets are dropped. if i just flip the channels
between interface 0 and 1, still interface 1 is working and interface 0
fails.
did i miss something?
hints anyone? :)
cheers,
tim
Ramon Aguero schrieb:
> Hello Tim,
>
> thanks for pinpointing the error! Somehow I made a mistake when
> copying and pasting the code to the file.
>
> The correct procedure would be the following one (note that the
> arptable_ is now within the 'for' cycle). In this sense, I don't think
> you need to change all arptable_ into arptable. Hope this helps.
>
> Node/MobileNode instproc reset {} {
> $self instvar arptable_ nifs_ netif_ mac_ ifq_ ll_ imep_
> for {set i 0} {$i < $nifs_} {incr i} {
> $netif_($i) reset
> $mac_($i) reset
> $ll_($i) reset
> $ifq_($i) reset
> if { [info exists opt(imep)] && $opt(imep) == "ON" } {
> $imep_($i) reset
> }
> if { $arptable_($i) != "" } {
> $arptable_($i) reset
> }
> }
> }
>
> Cheers,
> Ramón
>
> PS - I've already modified the document -- with the correct procedure
> -- in the web page:
> http://personales.unican.es/aguerocr
>
>
> At 16:39 18/01/2007, Tim Elschner wrote:
>> great job as far as i can see.
>> anyway i ran into problems with ns-mobilenode.tcl:
>> in "Node/MobileNode instproc reset" i couldn't find any differences
>> to the original.
>> i got an error, that arptable_ is an array. so i changed every
>> arptable_ into arptable. now ns2 complains about the missing variable
>> arptable :(
>>
>> any hints out there?
>>
>> cheers,
>> tim
>>
>> Ramon Aguero schrieb:
>>> Dear all,
>>>
>>> We have seen a lot of requests about the possibility to extend the
>>> NS-2 framework to support multiple interfaces. Although there is
>>> some information available, according to the messages that have been
>>> sent to this list, it seems that a more thorough description may be
>>> required.
>>>
>>> In this sense, after performing an analysis about existing
>>> activities in this topic, we have created a document that tries to
>>> summarize which are the required changes to be performed within the
>>> different pieces of the simulator (tcl, c++) as well as how routing
>>> protocols can be adapted to make use of the new feature. The howto
>>> is entitled "Adding Multiple Interface Support in NS-2" and it has
>>> been written by my colleague Jesús Pérez and myself.
>>>
>>> I’ve uploaded the document, which can be retrieved from the
>>> following url:
>>> <http://personales.unican.es/aguerocr>http://personales.unican.es/aguerocr
>>>
>>>
>>> We will be happy to receive any feedback, comments, so as to improve
>>> the howto, since we would like to have it like a living document,
>>> adding new features as they are available.
>>>
>>> Best regards,
>>> Ramón
>>>
>>> ========================================
>>> Ramón Agüero Calvo
>>> Dept. of Communications Engineering
>>> Network Planning & Mobile Communications
>>> Laboratory
>>> University of Cantabria
>>> Avda Castros s/n
>>> 39005 - Santander
>>> SPAIN
>>> [EMAIL PROTECTED]
>>> Tel: +34 942 201 392 (Ext 14)
>>> Fax: +34 942 201 488
>>> ========================================
>>>
>
