Re: [nox-dev] dl_vlan not correct?

2011-01-05 Thread Aaron Rosen
Hi KK, Sorry you are right. I'll email the openflow-discuess. This isn't a NOX issue. BTW, sorry for all the failed attachments. Aaron On Wed, Jan 5, 2011 at 6:13 PM, kk yap wrote: > Hi Aaron, > > Let me get this right. You see the 802.1Q tag for a switch and not > another. What does this ha

Re: [nox-dev] dl_vlan not correct?

2011-01-05 Thread kk yap
Hi Aaron, Let me get this right. You see the 802.1Q tag for a switch and not another. What does this has to do with NOX? NOX will simply parse the packet it receives. Should this email to be openflow-discuss instead? Correct me if I am misinterpreting. Regards KK On 5 January 2011 15:11, Aa

Re: [nox-dev] dl_vlan not correct?

2011-01-05 Thread Aaron Rosen
Opps, sorry for got to attach the laptop dump file. Aaron On Wed, Jan 5, 2011 at 6:08 PM, Aaron Rosen 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

Re: [nox-dev] dl_vlan not correct?

2011-01-05 Thread Aaron Rosen
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 wire

Re: [nox-dev] dl_vlan not correct?

2011-01-05 Thread kk yap
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 wrote: > I'm a bit confused by what you see with Indi

Re: [nox-dev] dl_vlan not correct?

2011-01-05 Thread Srini Seetharaman
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 pac

Re: [nox-dev] dl_vlan not correct?

2011-01-05 Thread Aaron Rosen
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 0x

Re: [nox-dev] dl_vlan not correct?

2011-01-05 Thread Srini Seetharaman
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 wrote: > Hello

[nox-dev] dl_vlan not correct?

2011-01-05 Thread Aaron Rosen
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 controll