!ndiskd.nrc
The !ndiskd.nrc extension displays information about a NET_RING_COLLECTION structure.
For more information about the Network Adapter WDF Class Extension (NetAdapterCx), see Network Adapter WDF Class Extension (Cx) and Introduction to net rings.
!ndiskd.nrc -handle <x> [-basic] [-packet] [-fragment] [-dump]
Parameters
-handle
Required. Address of NET_RING_COLLECTION
-basic
Displays links for packet ring and fragment ring.
-packet
Displays only the packet ring contents.
-fragment
Displays only the fragment ring contents.
-dump
Displays information about each element(packet/fragment).
DLL
Ndiskd.dll
Examples
Note See Summary of Objects to see a diagram explaining the relationship of the NET_PACKET object with other objects in the NetAdapterCx.
To obtain a handle for a NET_PACKET, follow these steps:
- Run the !ndiskd.netadapter extension.
- Click on the handle for a NetAdapter that has a NetAdapterCx driver installed.
- Click the "More Information" link to the right of the NetAdapter's NETADAPTER object to run the !ndiskd.cxadapter extension.
- Enter the !ndiskd.cxadapter command with the -datapath parameter to see that NETADAPTER's datapath queues.
- Click on the handle for one of the datapath queues.
- Click on the handle for that datapath queue's ring buffer.
- Click on the "List all elements" link at the bottom of the ring buffer details to see the elements it contains.
- Click on one of the NET RING COLLECTION objects.
For details on Steps 1-4 of this procedure, see the examples on the !ndiskd.cxadapter topic. For details on Step 5 of this procedure, see the examples on the !ndiskd.netqueue topic. For details on Steps 6-7 of this procedure, see the examples on the !ndiskd.netrb topic.
In the following example, the handle for the NET_RING_COLLECTION, ffff8b82fbcf94b0 is used with the nrc command.
0: kd> !ndiskd.nrc fffff8b82fbcf94b0
NET RING COLLECTION ffff8b82fbcf94b0
Packet Ring ffff8b82f8e75000
Fragment Ring ffff8b8300961000
List only packets
List only fragments
List all elements
See also
Windows Vista and Later Networking Reference
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