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| author | H. Peter Anvin <hpa@zytor.com> | 2009-04-13 10:37:37 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2009-04-13 10:37:37 -0700 |
| commit | c140eadf55dca4d14f5b2977f243aa6d97ddfa69 (patch) | |
| tree | 58df379a03cdcd02c8dc8104048b28e863688250 | |
| parent | a209da78bf38d57788aa8dae762b29d06affa58c (diff) | |
| download | syslinux-c140eadf55dca4d14f5b2977f243aa6d97ddfa69.tar.gz | |
pxelinux: be more aggressive about retransmitting ACKs
Some PXE stacks drop packets on transmit on a regular basis. Avoid
severe slowdowns by being much more aggressive about ACK
retransmissions.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| -rw-r--r-- | core/pxelinux.asm | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/core/pxelinux.asm b/core/pxelinux.asm index 2e3d6626..f7f60b5e 100644 --- a/core/pxelinux.asm +++ b/core/pxelinux.asm @@ -39,8 +39,8 @@ MAX_OPEN_LG2 equ 5 ; log2(Max number of open sockets) MAX_OPEN equ (1 << MAX_OPEN_LG2) PKTBUF_SIZE equ (65536/MAX_OPEN) ; Per-socket packet buffer size TFTP_PORT equ htons(69) ; Default TFTP port -PKT_RETRY equ 6 ; Packet transmit retry count -PKT_TIMEOUT equ 12 ; Initial timeout, timer ticks @ 55 ms +PKT_RETRY equ 10 ; Packet transmit retry count +PKT_TIMEOUT equ 2 ; Initial timeout, timer ticks @ 55 ms ; Desired TFTP block size ; For Ethernet MTU is normally 1500. Unfortunately there seems to ; be a fair number of networks with "substandard" MTUs which break. |