tcpdump mailing list archives
Re: pull request: Marvell DSA header
From: Andrew Lunn <andrew () lunn ch>
Date: Thu, 23 Apr 2015 16:55:15 +0200
On Thu, Apr 23, 2015 at 10:50:58AM -0400, Michael Richardson wrote:
Andrew Lunn <andrew () lunn ch> wrote: > I just create a github pull request adding support to tcpdump for the > Marvell header used by Distributed Switch Architecture. This header is > used for directing packets out/from specific ports of a Marvell > Ethernet switch. Thank you, it looks great. Thank you for including sample packets! Is this the kind of thing seen in home routers/SoC? I'm just wondering where one has to dump to see traffic like this...
A home router, like a WiFi access point is a likely candidate. If you see in the boot logs a message like: Distributed Switch Architecture driver version 0.1 detected a Marvell 88E6172 switch then there will be packets. OpenWRT can use a different kernel driver, so you won't see these log messages, but there could be EDSA tagged Ethernet frames around. Also, many wifi boxes Marvell switches use Marvell proprietary stack for controlling switches, but again, you might see such headers. Andrew _______________________________________________ tcpdump-workers mailing list tcpdump-workers () lists tcpdump org https://lists.sandelman.ca/mailman/listinfo/tcpdump-workers
Current thread:
- pull request: Marvell DSA header Andrew Lunn (Apr 22)
- Re: pull request: Marvell DSA header Michael Richardson (Apr 23)
- Re: pull request: Marvell DSA header Andrew Lunn (Apr 23)
- Re: pull request: Marvell DSA header Michael Richardson (Apr 23)