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7.8.1.0 - Force10 Networks

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Figure 533 shows the same VRRP group configured on multiple interfaces on different subnets.<br />

Figure 533 Command Example Display: show vrrp<br />

<strong>Force10</strong>#do show vrrp<br />

Same VRRP Group (VRID)<br />

------------------<br />

GigabitEthernet 1/1, VRID: 111, Net: 10.10.10.1<br />

State: Master, Priority: 255, Master: 10.10.10.1 (local)<br />

Hold Down: 0 sec, Preempt: TRUE, AdvInt: 1 sec<br />

Adv rcvd: 0, Bad pkts rcvd: 0, Adv sent: 1768, Gratuitous ARP sent: 5<br />

Virtual MAC address:<br />

00:00:5e:00:01:6f<br />

Virtual IP address:<br />

10.10.10.1 10.10.10.2 10.10.10.3 10.10.10.10<br />

Authentication: (none)<br />

------------------<br />

GigabitEthernet 1/2, VRID: 111, Net: 10.10.2.1<br />

State: Master, Priority: 100, Master: 10.10.2.1 (local)<br />

Hold Down: 0 sec, Preempt: TRUE, AdvInt: 1 sec<br />

Adv rcvd: 0, Bad pkts rcvd: 0, Adv sent: 27, Gratuitous ARP sent: 2<br />

Virtual MAC address:<br />

00:00:5e:00:01:6f<br />

Virtual IP address:<br />

10.10.2.2 10.10.2.3<br />

Authentication: (none)<br />

<strong>Force10</strong>#<br />

Different Virtual<br />

IP addresses<br />

When the VRRP process completes its initialization, the State field contains either Master or Backup.<br />

Set VRRP Group (Virtual Router) Priority<br />

Setting a Virtual Router priority to 255 ensures that router is the “owner” virtual router for the VRRP<br />

group. VRRP elects the MASTER router by choosing the router with the highest priority. THe default<br />

priority for a Virtual Router is 100. The higher the number, the higher the priority. If the MASTER router<br />

fails, VRRP begins the election process to choose a new MASTER router based on the next-highest<br />

priority.<br />

If two routers in a VRRP group come up at the same time and have the same priority value, the interface’s<br />

physical IP addresses are used as tie-breakers to decide which is MASTER. The router with the higher IP<br />

address will become MASTER.<br />

776 Virtual Router Redundancy Protocol (VRRP)

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