The SetForwardBufferMemory method is used to specify how much memory IP allocates to store packet data in the router packet ...

The SetForwardBufferMemory method is used to specify how much memory IP allocates to store packet data in the router packet queue. When this buffer space is filled, the router begins discarding packets at random from its queue. Packet queue data buffers are 256 bytes in length, so the value of this parameter should be a multiple of 256. Multiple buffers are chained together for larger packets. The IP header for a packet is stored separately. This parameter is ignored and no buffers are allocated if the IP router is not enabled. The buffer size can range from the network MTU to the a value smaller than 0xFFFFFFFF. Default: 74240 (fifty 1480-byte packets, rounded to a multiple of 256).The method returns an integer value that can be interpretted as follows:  0 - Successful completion, no reboot required 1 - Successful completion, reboot required 64 - Method not supported on this platform 65 - Unknown failure 66 - Invalid subnet mask 67 - An error occurred while processing an Instance that was returned 68 - Invalid input parameter 69 - More than 5 gateways specified 70 - Invalid IP  address 71 - Invalid gateway IP address 72 - An error occurred while accessing the Registry for the requested information 73 - Invalid domain name 74 - Invalid host name 75 - No primary/secondary WINS server defined 76 - Invalid file 77 - Invalid system path 78 - File copy failed 79 - Invalid security parameter 80 - Unable to configure TCP/IP service 81 - Unable to configure DHCP service 82 - Unable to renew DHCP lease 83 - Unable to release DHCP lease 84 - IP not enabled on adapter 85 - IPX not enabled on adapter 86 - Frame/network number bounds error 87 - Invalid frame type 88 - Invalid network number 89 - Duplicate network number 90 - Parameter out of bounds 91 - Access denied 92 - Out of memory 93 - Already exists 94 - Path, file or object not found 95 - Unable to notify service 96 - Unable to notify DNS service 97 - Interface not configurable 98 - Not all DHCP leases could be released/renewed 100 - DHCP not enabled on adapter Other - For integer values other than those listed above, refer to Win32 error code documentation.
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