SMC Networks 8612XL3, Management Manual

Page: 280 / 846

C
ONFIGURING THE
S
WITCH
3-226
• Several virtual master routers using the same set of backup routers.
• Several virtual master routers configured for mutual backup and load
sharing. Load sharing can be accomplished by assigning a subset of
addresses to different host address pools using the DHCP server. (See
“Configuring Address Pools” on page 3-217.)
Virtual Router Redundancy Protocol
Virtual Router Redundancy Protocol (VRRP) allows you to configure a
group of routers as a single virtual router. The virtual router group is
configured with a single virtual IP address that can be used as the default
gateway for host devices on the attached network.
Master Router
VRID 23
IP(R1) = 192.168.1.3
IP(VR23) = 192.168.1.3
VR Priority = 255
Master Router
VRID 25
IP(R2) = 192.168.2.17
IP(VR25) = 192.168.2.17
VR Priority = 255
Backup Router
VRID 23
IP(R3) = 192.168.1.4
IP(VR23) = 192.168.1.3
VR Priority = 100
VRID 25
IP(R3) = 192.168.2.18
IP(VR23) = 192.168.2.17
VR Priority = 100
Router 1
VRID 23 (Master)
IP(R1) = 192.168.1.3
IP(VR23) = 192.168.1.3
VR Priority = 255
VRID 25 (Backup)
IP(R1) = 192.168.1.3
IP(VR25) = 192.168.1.5
VR Priority = 100
Router 2
VRID 23 (Backup)
IP(R1) = 192.168.1.5
IP(VR23) = 192.168.1.3
VR Priority = 100
VRID 25 (Master)
IP(R1) = 192.168.1.5
IP(VR25) = 192.168.1.5
VR Priority = 255
Hosts (192.168.1.10-99)
Hosts (192.168.1.100-250)
LAN Segment A
LAN Segment B