DCBX Between Linux and Nexus QOS

Hi Guys
i have a server with 2 physical links only.
over this link im passing 2 vlans in trunk ( can be Portchannel to VPC or bond active passive , doesnt matter to me ) .
vlan 302 is for data
vlan 303 is for backup
server on vlan 303 is pushing traffic on that link and would take as much
bandwidth as we would give it , and would therefore cause communication issues to vlan 302 . ( congestion ) .
I would like to talk about my options here , to avoid congestions .
thought about enabling dcbx on clients ( linux ) and pfc ( priority flow
control ) to be able to negotiate qos and bw allocation according to COS IEEE 802.1p .
the idea is to have either the traffic prioritized/limit/shaped before/when its ingressing the nexus port .
the dcbx looks very cool like i said , it's kind of like what the nexus has with the CNA Card .
when it can send the linux nic through dcbx the qos parameters to apply ! ( ah ok , i see now its exactly the same )
ps linux dcbx link : http://manpages.ubuntu.com/manpages/precise/man8/dcbtool.8.html
Ingress Queuing Policies
You can associate an ingress policy map with an Ethernet interface to guarantee bandwidth for the specified traffic class or to specify a priority queue.
The ingress policy is applied in the adapter to all outgoing traffic that matches the specified CoS value.
When you configure an ingress policy for an interface, the switch sends the configuration data to the adapter. If the adapter does not support the DCBX protocol or the ingress policy type-length-value (TLV), the ingress policy configuration is ignored.
did anyone here tried it or implemented dcbx before ?
anyway id be happy to hear your wise and helpfull suggestions please
Thanks Thanks !!!

Found the answer.
Anatomy of RX packet counters on a Cisco Nexus 5548:
Nexus5548# show int eth1/29
RX
6387682660 unicast packets 1495485 multicast packets 164 broadcast packets
6389178309 input packets 589693485138 bytes
5146969 jumbo packets 0 storm suppression bytes
* "input" = unicast + multicast + broadcast (all non-jumbo)
* "jumbo" = frames sized 1519 bytes to the MTU bytes defined on the interface
* "jumbo" frames are counted separately from non-jumbo ("input")
* (unicast, multicast and broadcast "jumbo" frames appear to be rolled into the
one "jumbo" counter)
This can be seen another way with the 'count detail' command, correlated to "show int" output:
Nexus5548# show int eth1/29 count detailed
Ethernet1/29
Rx Packets: 6389178309 <-- input
Rx Unicast Packets: 6387682660 <-- unicast
Rx Multicast Packets: 1495485 <-- multicast
Rx Broadcast Packets: 164 <-- broadcast
Rx Jumbo Packets: 5146969 <-- jumbo
Rx Bytes: 589693485138
Rx Packets from 0 to 64 bytes: 1059418 <-- non-jumbo start
Rx Packets from 65 to 127 bytes: 6072007478 +
Rx Packets from 128 to 255 bytes: 11055520 +
Rx Packets from 256 to 511 bytes: 287107435 +
Rx Packets from 512 to 1023 bytes: 12801466 +
Rx Packets from 1024 to 1518 bytes: 23 <-- non-jumbo end
Rx Trunk Packets: 6387682823 <-- unicast + broadcast
fyi.

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