RE: [lwip-users] HELP with LWIPOPTS.H - how set these options and whatdoes are they mean?

[Bill Auerbach]

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From: address@hidden [mailto:address@hidden On Behalf Of Piero 74
Sent: Tuesday, March 04, 2008 9:02 AM
To: Mailing list for lwIP users
Subject: [lwip-users] HELP with LWIPOPTS.H - how set these options and whatdoes are they mean?

 

Hi all.

Below this message, i copied my lwipopts.h, so i hope i can explain better to all my problems.

I need help for some setting and understanding.

I use  tcp (with listener) and udp sockets.

In particular, my questions are:

5. PBUF_POOL_SIZE: i tryed to set this value low, but i saw problem with pbuf_alloc in my emac driver. What's the best or the minimal value for this option?

PBUF_POOLs are used only by SNMP and for your use in your ethernetif driver.  Assuming no SNMP, the minimum value is the number of Ethernet RX/TX packets you want to buffer before discarding (dropping) the packet because of lack of memory.

 

Bill