Performing Other Configuration Tasks
Cisco 12008 Gigabit Switch Router Installation and Configuration Guide
4-42
Bit 10 of the software configuration register controls the host portion of the IP broadcast
address. Setting bit 10 causes the processor to use all zeros in the host portion of the IP
broadcast address; clearing bit 10 (the factory default) causes the processor to use all ones.
Bit 10 interacts with bit 14, which controls the network and subnet portions of the IP
broadcast address.
Table4-6 shows the combined effect of bits 10 and 14.
Table4-6 Software Configuration Register Settings for Broadcast Address
Destination
Bits 11 and 12 of the software configuration register determine the line (baud) rate of the
console terminal. Table4-7 shows the settings in this register that equate to the four
available console baud rates. The factory default transmission rate for the console terminal
is 9600 baud.
Table4-7 Console Baud Rate Settings
Bit 13 of the software configuration register determines the system’s response to a bootlo ad
failure. Setting bit 13 causes the system to load Cisco IOS software from Flash memory
after five unsuccessful attempts to load a boot file from the network TFTP server. Clearing
Bit 14 Bit 10 Address (net) (host)
Off Off (ones) (ones)
Off On (zeros) (zeros)
On On (net) (zeros)
On Off (net) (ones)
Baud Rate Bit 12 Bit 11
9600 0 0
4800 0 1
1200 1 0
2400 1 1