Installation Guide

Brocade MLX Series and Brocade NetIron XMR Installation Guide 219
53-1004195-02
Managing the device
DRAFT: BROCADE CONFIDENTIAL
The threshold time is set in the chassis when you enter the command dm mp-presence-threshold-time. This command displays a
warning message in the LP console before LP is reset after finding the Active MP.
The allowed threshold time is 0 to 35 seconds only. The maximum limit of 35 seconds is maintained because the LP is reset on the MP
absence in 35 seconds. The input value 0 clears mp-presence-threshold-time.
Commands for setting mp-presence-threshold time are shown in the following table.
The below warning message is displayed when the threshold time is reached.
mp_presence_threshold_log: LP will go for a reset in another xx seconds.
Rolling Reboot
The Rolling Reboot feature provides a solution for continuously rebooting the line card when a system failure occurs from causes
including BIST failure, ECC errors, module init failure, and hardware failure during system initialization. When there is failure, the system
automatically reboots in an infinite loop until the failure is resolved. Repetitious reboot cycles consume CPU resources, power, and result
in unwanted IPC traffic to the MP.
When the system detects the continuous reboot of a line card, that line card is placed into interactive or down state mode after ten (10)
consecutive reboot cycles, and a failure message is sent to the MP.
FPGA Image Mismatch
A version mismatch between FPGA applications and hardware results in system failure and continuous reboot on every module
initialization failure. The Rolling Reboot feature places the line card into the interactive or down state mode on detection of an FPGA
version mismatch.
This feature will detect the incompatibility between application FPGA version and Hardware FPGA version and put the card into down
state if there is mismatch.
TABLE 35 Operations for LP and Port LED Status
Operation LP Status Port LED Status
1 Power off the LP.
2 Remove and insert the Active
MP.
Reboot
ON: Active MP presence/absence
ON - OFF - ON: Insertion of Active
MP
1 Place the LP in interactive
mode.
2 Remove and insert the Active
MP.
Reboot
1 Disable all LP ports
administratively.
2 Remove and insert the Active
MP.
Reboot
TABLE 36 Operations for Setting mp-presence-threshold Time
Operation Result
LP-1#dm mp-presence-threshold-time 10
MP Presence threshold time is set to 10 seconds.
LP-1#dm mp-presence-threshold-time 0
MP Presence threshold time is cleared.