Configuring Vrrp - Cisco 350 Series Administration Manual

IP Configuration: VRRP

Configuring VRRP

Configuring VRRP
STEP 1
STEP 2
STEP 3
Cisco 350, 350X and 550X Series Managed Switches, Firmware Release 2.4, ver 0.4
VRRP Advertisements
The virtual router master sends VRRP advertisements to routers which are in the same group
(configured with the same virtual router identification).
The VRRP advertisements are encapsulated in IP packets and sent to the IP v4 Multicast
address assigned to the VRRP group. The advertisements are sent every second by default; the
advertisement interval is configurable.
The advertisement Interval is in mS (Range: 50 - 40950, Default: 1000). A non-value is
invalid.
• In VRRP version 3, the operational advertise interval is rounded down the nearest
10ms.
• In VRRP version 2, the operational advertise interval is rounded down to the nearest
second. The minimum operational value is 1 sec.
Virtual Routers
VRRP properties can be configured and customized in the VRRP Virtual Routers page.
Click IP Configuration > IPv4 Management and Interfaces > VRRP > Virtual Routers.
The virtual routers are displayed. The fields are described in the Add page except for the
following fields that are generated by the system:
• Master/Backup Status—Displays whether the virtual router is a Master, Backup or
neither of these.
• Master Primary Address—Displays the IP address of the master router.
• Preempt Mode—Is Preemptive feature enabled or disabled.
To add a virtual router, click ADD.
Enter the following fields:
• Interface—Interface on which virtual router is defined.
• Virtual Router Identifier—User-defined number identifying virtual router.
• Description—User-defined string identifying virtual router.
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