To specify the time interval between the advertisement packets that are being sent to other Virtual Router Redundancy Protocol (VRRP) routers in the same group, use the advertisement-interval command. To return to the default interval value of 1 second, use the no form of this command.
advertisement-interval seconds
no advertisement-interval [ seconds ]
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seconds
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Number of seconds between advertisement frames being sent. For IPv4, the range is from 1 to 255 seconds.
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1 second
VRRP configuration mode
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Release
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Modified
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5.0(3)N1(1)
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This command was introduced.
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VRRP advertisements communicate the priority and state of the virtual router master. The advertisements are encapsulated in IP packets and are sent to the IPv4 multicast address that is assigned to the VRRP group.
VRRP uses a dedicated Internet Assigned Numbers Authority (IANA) standard multicast address (224.0.0.18) for VRRP advertisements. This addressing scheme minimizes the number of routers that must service the multicasts and allows test equipment to accurately identify VRRP packets on a segment. The IANA-assigned VRRP IP protocol number is 112.
This example shows how to specify an advertisement interval of 200 seconds for VRRP group 250:
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Command
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Description
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clear vrrp
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Clears all the software counters for the specified virtual router.
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show vrrp
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Displays VRRP configuration information.
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vrrp
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Configures a VRRP group.
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