The Cisco Catalyst 3500 switch has what seems like a training period
of about ten seconds. Therefore, the default 3*2 second waiting
period between card resets is too small to allow a Linux bootp client
to boot through one of these switches.
The following micro-patch just increases the CONF_SEND_RETRIES (which
says how many bootp packets to send out between reopening the device(s))
from 3 to 10, which fixes the problem.
--- ipconfig.c~ Wed Jun 7 23:26:44 2000
+++ ipconfig.c Sat Jul 29 12:53:18 2000
@@ -75,7 +75,7 @@
/* Define the timeout for waiting for a DHCP/BOOTP/RARP reply */
#define CONF_OPEN_RETRIES 3 /* (Re)open devices three times */
-#define CONF_SEND_RETRIES 3 /* Send requests three times */
+#define CONF_SEND_RETRIES 10 /* Send requests ten times */
#define CONF_BASE_TIMEOUT (HZ*2) /* Initial timeout: 2 seconds */
#define CONF_TIMEOUT_RANDOM (HZ) /* Maximum amount of randomization */
#define CONF_TIMEOUT_MULT *7/4 /* Rate of timeout growth */
-- (domestic pets only, the antidote for overdose, milk.) larsi@gnus.org * Lars Magne Ingebrigtsen- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
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