Vrrp With Route And Interface Tracking - Dell PowerEdge M420 Configuration Manual

Dell powerconnect m8024-k user's configuration guide
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VRRP with Route and Interface Tracking

In Figure 36-10, the VRRP priorities are configured so that Router A is the
VRRP master, and Router B is the VRRP backup. Router A forwards IP traffic
from clients to the external network through the VLAN 25 routing interface.
The clients are configured to use the virtual IP address 192.168.10.15 as the
default gateway.
Figure 36-10. VRRP with Tracking Network Diagram
Default Gateway
192.168.10.15
Without VRRP interface or route tracking, if something happened to VLAN
25 or the route to the external network, as long as Router A remains up, it will
continue to be the VRRP master even though traffic from the clients does not
have a path to the external network. However, if the interface and/or route
tracking features are configured, Router A can decrease its priority value when
the problems occur so that Router B becomes the master.
1052
Configuring VRRP
VLAN 25
Router A
Priority 200
VLAN 10
192.168.10.1
`
`
Default Gateway
192.168.10.15
External Network
192.168.200.0
VRID 10
192.168.10.15
VLAN 10
192.168.1.2
L2 Switch
Default Gateway
192.168.10.15
Router B
Priority 195
`
Default Gateway
192.168.10.15
`

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