Hi, enabling Port-Fast Mode on the switch ports could be a solution for this problem too. It will not block the port until a loop is detected. Without Port-Fast, STP will block a port until no loop is detected.
Regards, Dirk Heindel -----Ursprüngliche Nachricht----- Von: [email protected] [mailto:[email protected]] Im Auftrag von Jim Freeman Gesendet: Freitag, 18. September 2009 19:45 An: [email protected]; [email protected] Betreff: STP vs. DHCP during Debian pxeboot installs FYI - When performing unattended Debian installations across a network, some switch protocols/configurations thwart required DHCP negotiation by simply blocking traffic for a time, and DHCP gives up after its default timeout period. For instance, in installing some Dell M610 blades (Broadcom NetXtreme II adapters - bnx2 linux driver module) within Cisco switch fabric running STP (Spanning Tree Protocol), interface traffic is blocked until STP can determine that the port coming on-line does not introduce any switching loops. The DHCP requests being sent during that time just fall on the floor, and DHCP gives up before it's ever really given a chance. [...] -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
