[Mini-NDN] [EXT] NoRoute error

[Nazatul Haque Sultan]

 Dear Junxiao Shi,

I have another query. When I use "nfdc route list" command at node b, I am
getting the appended results. I know that RTT represents the round trip
time. I want to know is this corresponding to the delay between sending an
interest request and getting back its corresponding data packet (can be
satisfied by either a router or the server)? Or is it the delay between the
requesting host (node b in our case) and server (node a in our case)?

mini-ndn> b nfdc route list

All segments have been received.
Time elapsed: 0.136928 seconds
Segments received: 8
Transferred size: 35.147 kB
Goodput: 2.053455 Mbit/s
Congestion marks: 0 (caused 0 window decreases)
Timeouts: 0 (caused 0 window decreases)
Retransmitted segments: 0 (0%), skipped: 0
*RTT min/avg/max *= 44.374/46.077/47.476 ms
ndndump: listening on b-eth0, link-type EN10MB (Ethernet)
ndndump: using pcap filter: (ether proto 0x8624) or (tcp port 6363) or (udp
port 6363) or (udp port 56363) ..................................
..........................................

Best regards,
Nazatul

On Mon, Aug 3, 2020 at 2:46 PM Nazatul Haque Sultan <
nazatulhaque.sultan at gmail.com> wrote:

> Dear Junxiao Shi,
>
> Thank you for your quick response. It is working now.
>
> Best regards,
> Nazatul
>
> On Mon, Aug 3, 2020 at 1:12 PM Junxiao Shi <shijunxiao at email.arizona.edu>
> wrote:
>
>> Hi Nazatul
>>
>> NFD does not forward any Interest starting with /localhost to a remote
>> node. Try a different name prefix, such as a prefix under the one you used
>> in ping server.
>>
>> Yours, Junxiao
>>
>> On Sun, Aug 2, 2020 at 22:50 Nazatul Haque Sultan via Mini-NDN <
>> mini-ndn at lists.cs.ucla.edu> wrote:
>>
>>> *External Email*
>>> Dear All,
>>>
>>> I am facing an issue with miniNDN. I was trying to work on a simple
>>> topology file, e.g. *a->c->b*, where *a *publishes content *gpl3 *
>>> using *"ndnputchunks -p /localhost/demo/gpl3 <
>>> /usr/share/common-licenses/GPL-3 | ndndump -v> outA &"* and* b* request
>>> for it using "*ndncatchunks /localhost/demo/gpl3 | ndndump -v> outB &*"*.
>>> *I have also attached dump files of node a and b.
>>>
>>> *Issue*: when I used "*a nfdc route list*" and "*b nfdc route list*"
>>> commands, I can see that node a has generated 8 chunks. However, node b is
>>> showing *NoRoute error* (I am appending its results below). I tried
>>> ping commands and was getting successful ping results for the same
>>> topology.
>>>
>>> My questions are:
>>>
>>> 1. I can see in the dump files some interest and data packets. As per
>>> the output of the command " *b nfdc route list*", there is no route
>>> between a to b and vice versa. Are the interest and data packets of the
>>> dump files related to the actual content *gpl3* or something else?
>>>
>>> 2. Why does ping is working while the *ndncatchunks* is showing NoRoute
>>> error?
>>>
>>> Can someone please give me any hint on these? Thank you in advance.
>>>
>>> mini-ndn> a nfdc route list
>>> Loading input ...
>>>
>>> *Created 8 chunks for prefix /localhost/demo/gpl3Data published with
>>> name: /localhost/demo/gpl3/%FD%00%00%01s%B1%E4%9A%BE*
>>> ndndump: listening on a-eth0, link-type EN10MB (Ethernet)
>>> ndndump: using pcap filter: (ether proto 0x8624) or (tcp port 6363) or
>>> (udp port 6363) or (udp port 56363)
>>> prefix=/ndn/a-site/KEY nexthop=262 origin=app cost=0 flags=capture
>>> expires=never
>>> prefix=/ndn/a-site/KEY nexthop=266 origin=app cost=0 flags=capture
>>> expires=never
>>> prefix=/ndn/a-site/%C1.Router/cs/a/KEY nexthop=262 origin=app cost=0
>>> flags=capture expires=never
>>> prefix=/ndn/a-site/%C1.Router/cs/a/KEY nexthop=266 origin=app cost=0
>>> flags=capture expires=never
>>>
>>> mini-ndn> b nfdc route list
>>> *ERROR: Could not retrieve data for /localhost/demo/gpl3/32=metadata,
>>> reason: NoRoute*
>>> ndndump: listening on b-eth0, link-type EN10MB (Ethernet)
>>> ndndump: using pcap filter: (ether proto 0x8624) or (tcp port 6363) or
>>> (udp port 6363) or (udp port 56363)
>>> prefix=/ndn/a-site/a nexthop=261 origin=nlsr cost=20 flags=capture
>>> expires=3528s
>>> prefix=/ndn/a-site/%C1.Router/cs/a nexthop=261 origin=nlsr cost=20
>>> flags=capture expires=3528s
>>> prefix=/ndn/b-site/KEY nexthop=262 origin=app cost=0 flags=capture
>>> expires=never
>>> prefix=/ndn/b-site/KEY nexthop=266 origin=app cost=0 flags=capture
>>> expires=never
>>> prefix=/ndn/b-site/%C1.Router/cs/b/KEY nexthop=262 origin=app cost=0
>>> flags=capture expires=never
>>>
>>> Regards,
>>> Nazatul
>>> _______________________________________________
>>> Mini-NDN mailing list
>>> Mini-NDN at lists.cs.ucla.edu
>>> http://www.lists.cs.ucla.edu/mailman/listinfo/mini-ndn
>>>
>>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.lists.cs.ucla.edu/pipermail/mini-ndn/attachments/20200803/90a94275/attachment-0001.html>