On Mon, 31 Mar 2014 10:28:50 +0000 Mischa Diehm mischa.diehm@unibas.ch wrote:
we have FP activated in our datacenter and use Cisco Nexus (5,6,7)k. I'm not sure what caused the problem but NAV can't find MAC-addresses on these devices and even on catalysts behind them anymore. I don't know what algorithm is used to figure out where a MAC-address is attached but maybe someone who knows can clarify what is needed for that to work?
Not being a network engineer, I have no experience with FabricPath. I had to Google it, and from what I could glean from [1], it appears FabricPath throws traditional layer 2 bridging off the boat.
NAV collects MAC addresses from the forwarding tables in your switches. It appears that Cisco FabricPath doesn't using forwarding tables, but instead employs a proprietary system for routing ethernet frames.
In light of that, there is nothing the current version of NAV that will help you get layer 2 information out of this proprietary system. Cisco may have some MIBs available to get the relevant information, but I could not say how/when or if we would put support for in on our roadmap.
[1] http://www.cisco.com/c/en/us/products/collateral/switches/nexus-7000-series-...