Avaya Configuring VRRP Services Manual do Utilizador descarregar pdf (Página 17)

VRRP Concepts

304138-A Rev 00

1-5

The configuration in Figure 1-3 shows that IP address 1.1.1.1 provides

connectivity to external networks. If that connection fails and the virtual router 1

on router B continues to forward traffic, you still lose connectivity to external

networks. However, if you designate IP address 1.1.1.1 as the critical IP address

for virtual router 1 on router B, and IP address 1.1.1.1 fails, then virtual router 1

on router A becomes the master virtual router and begins forwarding traffic.

Figure 1-3. Using VRRP with a Critical IP Interface

Virtual router 1

VRIP 132.128.128.30

VRID = 1

Priority 50

Virtual router 1

VRIP 132.128.128.30

VRID = 1

Priority 255

Router A

Router B

Router C

1.1.1.12.2.2

DG=Default gateway

CRIP=Critical IP interface address

VRIP=Virtual router IP address

VRID=Virtual router ID

DG: 132.128.128.128.30

Continuous ping:

200.200.200.2

Host

VR0003A

Key

1.1.1.22.2.2.2

132.128.128.10

VRIP: 132.128.128.30

132.128.128.30

CRIP: 1.1.1.1

200.200.200.2

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Avaya Configuring VRRP Services Manual do Utilizador Página 17