Brocade BigIron RX Series Configuration Guide - Manual (Page 1045)

BigIron RX Series Configuration Guide 967
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Configuring ISIS properties on an interface
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Disabling and enabling hello padding on an interface
The section “Globally disabling or re-enabling hello padding” on page 957 explains what hello
padding is, why it is important and how to globally disable or enable it on a device. You can also
disable hello padding on a specific interface by entering commands such as the following.
BigIron RX(config)# interface ethernet 2/8
BigIron RX(config-if-e1000-2/8)# no isis hello padding
Syntax: [no] isis hello padding
By default, hello padding is enabled. Enter the no form of the command to disable hello padding.
Changing the hello interval
The hello interval controls how often an IS-IS interface sends hello messages to its IS-IS neighbors.
The default interval is 10 seconds for Level-1 and Level-2. You can change the hello interval for one
or both levels to a value from 1 – 65535 seconds.
To change the hello interval for Ethernet interface 2/8, enter commands such as the following.
BigIron RX(config)# interface ethernet 2/8
BigIron RX(config-if-e1000-2/8)# isis hello-interval 20
This command changes the hello interval to 20 seconds. By default, the change applies to both
Level-1 and Level-2.
Syntax: [no] isis hello-interval <num> [level-1 | level-2]
The <num> parameter specifies the interval, and can be from 1 – 65535 seconds. The default is
10 seconds.
The level-1 | level-2 parameter applies the change to only the level you specify. If you do not use
this parameter, the change applies to both levels.
Changing the hello multiplier
The hello multiplier is the number by which an IS-IS interface multiplies the hello interval to obtain
the hold time for Level-1 and Level-2 IS-to-IS hello PDUs. The default multiplier is 3. You can set the
multiplier to a value from
3 – 1000.
To change the hello multiplier for Ethernet interface 2/8, enter commands such as the following.
BigIron RX(config)# interface ethernet 2/8
BigIron RX(config-if-e1000-2/8)# isis hello-multiplier 50
This command changes the hello interval to 50. By default, the change applies to both Level-1 and
Level-2.
Syntax: [no] isis hello-multiplier <num> [level-1 | level-2]
The <num> parameter specifies the multiplier, and can be from 3 – 1000. The default is 3.
The level-1 | level-2 parameter applies the change to only the level you specify. If you do not use
this parameter, the change applies to both levels.