diff options
| author | H. Peter Anvin <hpa@zytor.com> | 2007-05-22 23:58:32 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2007-05-22 23:58:32 -0700 |
| commit | 7f2f6e3cec8eca7710acdd0b82b095834aecd400 (patch) | |
| tree | 789491a5ea8e2de70bcb6b9ab270df64a7a1a233 | |
| parent | b901a125510486e190dd841dfa616cafff0c9242 (diff) | |
| download | syslinux-7f2f6e3cec8eca7710acdd0b82b095834aecd400.tar.gz | |
Drop TFTP_MTU to 1440.
Drop TFTP_MTU to 1440. This gives TFTP_LARGE_BLK = 1408 = 0x580, which
is the roundest number without dropping the MTU significantly below the
standard Ethernet MTU.
| -rw-r--r-- | pxelinux.asm | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/pxelinux.asm b/pxelinux.asm index 3e50245f..e8995eb8 100644 --- a/pxelinux.asm +++ b/pxelinux.asm @@ -41,7 +41,7 @@ PKT_TIMEOUT equ 12 ; Initial timeout, timer ticks @ 55 ms ; For Ethernet MTU is normally 1500. Unfortunately there seems to ; be a fair number of networks with "substandard" MTUs which break. ; The code assumes TFTP_LARGEBLK <= 2K. -TFTP_MTU equ 1472 +TFTP_MTU equ 1440 TFTP_LARGEBLK equ (TFTP_MTU-20-8-4) ; MTU - IP hdr - UDP hdr - TFTP hdr ; Standard TFTP block size TFTP_BLOCKSIZE_LG2 equ 9 ; log2(bytes/block) |