path: root/README
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authorAlexandre Messier <>2016-02-01 17:08:57 -0500
committerJoe Hershberger <>2016-02-26 13:37:38 -0600
commit50768f5b06e7704cf2bc209f89e250130c3fff5b (patch)
tree78d4f566336406bca9e57f571edbd4a69367a762 /README
parent903d384d401bdfc517266787549caf4630a7f305 (diff)
net: bootp: Add environment variable for timeout period
There is currently one config option (CONFIG_NET_RETRY_COUNT) that is available to tune the retries of the network stack. Unfortunately, it is global to all protocols, and the value is interpreted differently in all of them. Add a new environment variable that directly sets the retry period for BOOTP timeouts. If this new value is not set, the period is still derived from the default number of retries, or from CONFIG_NET_RETRY_COUNT if defined. When both the new variable is set and CONFIG_NET_RETRY_COUNT is defined, the variable has precedence. Signed-off-by: Alexandre Messier <>
Diffstat (limited to 'README')
1 files changed, 6 insertions, 0 deletions
diff --git a/README b/README
index 362ff19ebf..b2eee19773 100644
--- a/README
+++ b/README
@@ -5409,6 +5409,12 @@ List of environment variables (most likely not complete):
Ethernet is encapsulated/received over 802.1q
VLAN tagged frames.
+ bootpretryperiod - Period during which BOOTP/DHCP sends retries.
+ Unsigned value, in milliseconds. If not set, the period will
+ be either the default (28000), or a value based on
+ CONFIG_NET_RETRY_COUNT, if defined. This value has
+ precedence over the valu based on CONFIG_NET_RETRY_COUNT.
The following image location variables contain the location of images
used in booting. The "Image" column gives the role of the image and is
not an environment variable name. The other columns are environment
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