Cisco Systems SG50028PK9NA Manual De Usuario

Configurable Elements of VRRP

Cisco Small Business 200, 300 and 500 Series Managed Switch Administration Guide (Internal Version) 

397

 

A virtual router must be assigned an unique virtual router identifier (VRID) among 
all the virtual routers on the same LAN. All VRRP routers supporting the same 
virtual router must be configured with all the information relating to the virtual 
router including its VRID. Virtual routers should be enabled on the device only 
when IP routing is also enabled on the device.

You can configure a VRRP router to participate in one or more virtual routers either 
by using CLI commands, or through the web GUI, as described in the 

 section.

To configure a virtual router, you configure its information, such as the virtual router 
ID and its IP addresses, on every VRRP routers that support the virtual router. The 
following elements can be configured and customized.

It must be assigned an identifier (VRID) and may be assigned a description. The 
sections below describe the various attributes of the virtual router.

VRRP supports up to 255 virtual routers (VRRP groups).

The device supports the following VRRP version types:

•

IPv4 VRRPv3 based on RFC5798. VRRPv3 messages are sent.

•

IPv4 VRRPv3 and VRRPv2 based on RFC5798. VRRPv3 and VRRP v2 
messages are sent.

•

IPv4 VRRPv2 based on RC3768. VRRPv2 messages are sent.

Configuring the VRRP version is per virtual router. The default is VRRPv2. 

The following cases might occur when configuring a virtual router:

•

All the existing VRRP routers of the virtual router operate in VRRPv3. In this 
case, configure your new VRRP router to operate in VRRPv3.

•

All the existing VRRP routers of the virtual router operate in VRRPv2. In this 
case, configure your new VRRP router to operate in VRRPv2.