User`s guide

86 XSR User’s Guide
IP Routing Protocols Chapter 5
Configuring IP
Figure 9 Simple VRRP Topology
Because the VR uses the IP address of the physical Ethernet interface of XSR1,
XSR1 becomes the master VR, also known as the IP address owner. XSR1, as the
master VR, assumes the IP address of the VR and is responsible for
forwarding packets sent to this IP address.
Clients A, B, and C are configured with the default gateway IP address of
10.10.10.1.
XSR2 is a backup VR. If the master VR fails, XSR2 will take over as the master
VR and support the connected LAN hosts. When XSR1 comes back on line, it
assumes the role of master VR again.
Figure 10 illustrates a topology where VRs XSR1 and XSR2 split outgoing
traffic between them and provide full system redundancy. ClientA and
ClientB install a default route to XSR1’s VR IP address and ClientC and
ClientD install a default route to XSR2’s VR IP address. Both XSRs serve dual
master/backup roles.
XSR1
VR Master VR Backup
10.10.10.1
XSR2
ClientA ClientB ClientC
10.10.10.2
VR IP address: 10.10.10.1