Opps, sorry for got to attach the laptop dump file. Aaron
On Wed, Jan 5, 2011 at 6:08 PM, Aaron Rosen <[email protected]> wrote: > Hi KK, > > Attached are two wireshark dump files. One is a dump from my laptop plugged > into the trunk port (on the hp switch). If you look at it in wireshark all > of these packets have a 802.1Q virtual LAN frame with an ID of either 845, > 846, or 847. > > The other dump file 'dump_at_controller', is a wireshark capture at the > controller where an switch running indigo is pointing. If you look at all of > these packet_in events I don't see any of these 802.1Q frames. > > Thanks, > > Aaron > > > > > On Wed, Jan 5, 2011 at 5:58 PM, kk yap <[email protected]> wrote: > >> Hi Aaron, >> >> Can you tell us if there is any difference in the tcpdump from the HP >> and Indigo? >> >> I skimmed through the NOX code and it seems to parse VLAN. So, there >> is something amiss here. >> >> Regards >> KK >> >> On 5 January 2011 14:50, Srini Seetharaman <[email protected]> wrote: >> > I'm a bit confused by what you see with Indigo. Here's what I said: >> > - HP switch: Packet_ins seen at the controller will not have the VLAN >> > tag, but outgoing packets in the dataplane will have the appropriate >> > tag. >> > - Indigo switch: Packet_ins seen at the controller will have the VLAN >> > tag if tagged packets are sent to it. For outgoing packets to have the >> > tag, the controller has to add the tag (as an additional action). >> > >> > On Wed, Jan 5, 2011 at 2:37 PM, Aaron Rosen <[email protected]> wrote: >> >> Hi Srini, >> >> >> >> In my topology I have an HP switch which I have configured a port to >> tag >> >> several vlans. If I plug my laptop into this port I'm able to see the >> >> correct vlan values. Now If I plug a switch into this port that is >> running >> >> the indigo firmware when the controller gets the packets I'm seeing >> 0xffff >> >> as the value instead of the correct value I see with my laptop using >> >> wireshark. >> >> >> >> (According to your response this should be fine? ) >> >> >> >> Aaron >> >> >> >> On Wed, Jan 5, 2011 at 5:31 PM, Srini Seetharaman < >> [email protected]> >> >> wrote: >> >>> >> >>> Hi Aaron >> >>> Only pure-OF switches (like Pronto switch with Indigo firmware) will >> >>> send the VLAN tag to the controller. With others, the tag is usually >> >>> added / stripped by the VLAN configs on the switch. So, you'll not get >> >>> to see them. >> >>> >> >>> Srini. >> >>> >> >>> On Wed, Jan 5, 2011 at 2:23 PM, Aaron Rosen <[email protected]> >> wrote: >> >>> > Hello, >> >>> > >> >>> > I'm trying to extract the dl_vlan value from packets on a trunk >> port. >> >>> > When I >> >>> > plug my computer into the trunk port and run tcpdump I see the >> correct >> >>> > 802.1Q values. Though when I attach this port to my openflow switch >> >>> > (running >> >>> > the pronto firmware) I can't get the correct values at my >> controller. >> >>> > >> >>> > In my controller I'm running these few lines of code to print out >> what's >> >>> > in >> >>> > the packet. >> >>> > >> >>> > test = extract_flow(packet) >> >>> > print test.keys() >> >>> > print test.values() >> >>> > >> >>> > From this: I'm getting the following output >> >>> > >> >>> > ['dl_type', 'nw_dst', 'dl_vlan_pcp', 'dl_src', 'nw_proto', 'nw_tos', >> >>> > 'tp_dst', 'tp_src', 'dl_dst', 'dl_vlan', 'nw_src'] >> >>> > [2048, 4294967295, 0, array('B', [0, 27, 177, 2, 100, 167]), 17, 0, >> 698, >> >>> > 698, array('B', [255, 255, 255, 255, 255, 255]), 65535, 2189371010] >> >>> > >> >>> > I'm getting 65535 for every packet and that is not correct from what >> I'm >> >>> > seeing with tcpdump and not what I'm expecting. >> >>> > >> >>> > Can someone point out where I'm going wrong. >> >>> > >> >>> > Thanks, >> >>> > >> >>> > Aaron >> >>> > >> >>> > -- >> >>> > Aaron O. Rosen >> >>> > Masters Student - Network Communication >> >>> > 306B Fluor Daniel >> >>> > 843.425.9777 >> >>> > >> >>> > >> >>> > _______________________________________________ >> >>> > nox-dev mailing list >> >>> > [email protected] >> >>> > http://noxrepo.org/mailman/listinfo/nox-dev_noxrepo.org >> >>> > >> >>> > >> >> >> >> >> >> >> >> -- >> >> Aaron O. Rosen >> >> Masters Student - Network Communication >> >> 306B Fluor Daniel >> >> 843.425.9777 >> >> >> >> >> > >> > _______________________________________________ >> > nox-dev mailing list >> > [email protected] >> > http://noxrepo.org/mailman/listinfo/nox-dev_noxrepo.org >> > >> > > > > -- > Aaron O. Rosen > Masters Student - Network Communication > 306B Fluor Daniel > 843.425.9777 > > -- Aaron O. Rosen Masters Student - Network Communication 306B Fluor Daniel 843.425.9777
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