Thanks, Mark. I've taken a closer look at this by logging into my switch management console (which had not yet been set up at my last email). I was mistaken: Packets are coming in from the BEE2, but are being tagged as "discarded" in the switch, and are not getting transmitted to the destination machine. (When it works, of course, packets are not "discarded", and that is easily seen). As a note, I have tried setting the BEE2 to the 10.5 subnet, and packets go through fine then (proof of concept that it's *possible* to get packets from A-to-B).
The subnet mask on the receiving interface is /16. I tried to configure the receiver to /8 as a test, but that didn't seem to help. Any thoughts as to why the switch might discard packets in this way? Thanks, Billy ________________________________ From: Mark Wagner [mailto:mwag...@eecs.berkeley.edu] Sent: Thursday, October 14, 2010 12:25 AM To: Barott, William Chauncey Cc: casper@lists.berkeley.edu Subject: Re: [casper] 10Gbe yellow block outside of subnet? Hi Billy, I'm not aware of the 10Gbe being specific to certain subnets. Are you sure it's a generating packets issue and not a receiving packets? Have you tried looking for packets using something like wireshark or tcpdump? Also, if you run ifconfig, what is your subnet mask set to? Mark On Wed, Oct 13, 2010 at 6:23 PM, Barott, William Chauncey <baro...@erau.edu> wrote: Hi all, I'm running version 7 of the toolflow compiling for BEE2s. Have run into a difficulty with the 10Gbe yellow block. I can quite successfully generate packets within the same subnet - e.g. the BEE2 on 10.4.0.100 and a receiver computer on 10.4.0.101. However, I've not been successful in trying to generate packets outside of the /24 subnet. With the same 10.4.0.100 BEE2 address, I cannot get packets delivered to 10.5.0.101, for example (note the 4 changed to 5). I've not been able to find a subnet configuration for the BEE2 10gbe block - maybe I've missed it, nor have I found anything about such a limitation in the documentation. It could also be a peculiarity of my network setup (though it's all quite out of the box), but difficult to diagnose at this stage. Has someone out there successfully done what I'm trying to do? Or know that it's not possible? Any info is appreciated. Thanks! Billy
