Customizing Glbp - Cisco Nexus 7000 Series Configuration Manual

Nx-os unicast routing configuration
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Chapter 18
Configuring GLBP
S e n d d o c u m e n t c o m m e n t s t o n e x u s 7 k - d o c f e e d b a c k @ c i s c o . c o m .

Customizing GLBP

Customizing the behavior of GLBP is optional. Be aware that as soon as you enable a GLBP group by
configuring a virtual IP address, that group is operational. If you enable a GLBP group before you
customize GLBP, the router could take over control of the group and become the AVG before you finish
customizing the feature. If you plan to customize GLBP, you should do so before enabling GLBP.
To customize GLBP, use the following commands in GLBP configuration mode:
Command or Action
timers [msec] hellotime [msec]
holdtime
Example:
switch(config-if-glbp)# timers 5 18
timers redirect redirect timeout
Example:
switch(config-if-glbp)# timers
redirect 600 7200
priority level
Example:
switch(config-if-glbp)# priority 254
preempt [delay minimum seconds ]
Example:
switch(config-if-glbp)# preempt delay
minimum 60
OL-20002-02
Purpose
Configures the following hello and hold times for this
GLBP member:
hellotime—The interval between successive hello
packets sent by the AVG in a GLBP group. The range
is from 1 to 60 seconds or from 250 to 60000
milliseconds. The default value is 3 seconds.
holdtime—The interval before the virtual gateway
and virtual forwarder information in the hello packet
is considered invalid. The range is from 2 to 180
seconds or from 1020 to 180000 milliseconds. The
default is 10 seconds.
The optional msec keyword specifies that the argument is
expressed in milliseconds, instead of the default seconds.
Configures the following timers:
redirect—The time interval in seconds during which
the AVG continues to redirect clients to an AVF. The
range is from 0 to 3600 seconds. The default is 600
seconds.
timeout—The interval in seconds before a secondary
virtual forwarder becomes invalid. The range is from
610 to 64800 seconds. The default is 14,440 seconds.
Sets the priority level used to select the AVG in a GLBP
group. The range is from 1 to 255. The default is 100.
Configures the router to take over as AVG for a GLBP
group if it has a higher priority than the current AVG. This
command is disabled by default.
Use the optional delay minimum keywords and the
seconds argument to specify a minimum delay interval in
seconds before preemption of the AVG takes place.
The seconds range is from 0 to 3600 seconds. The
minimum delay default is 3600 seconds.
Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration Guide, Release 4.x
Configuring GLBP
18-13

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