Specifications

Relative Route Priorities

ExtremeWare XOS 10.1 Concepts Guide 179

For example, an IP host is configured with a class B address of 100.101.102.103 and a mask of

255.255.0.0. The switch is configured with the IP address 100.101.102.1 and a mask of 255.255.255.0. The

switch is also configured with a proxy ARP entry of IP address 100.101.0.0 and mask 255.255.0.0, without

the

always parameter.

When the IP host tries to communicate with the host at address 100.101.45.67, the IP hosts

communicates as if the two hosts are on the same subnet, and sends out an IP ARP Request. The switch

answers on behalf of the device at address 100.101.45.67, using its own MAC address. All subsequent

data packets from 100.101.102.103 are sent to the switch, and the switch routes the packets to

100.101.45.67.

Relative Route Priorities

Table 35 lists the relative priorities assigned to routes depending upon the learned source of the route.

NOTE

Although these priorities can be changed, do not attempt any manipulation unless you are expertly

familiar with the possible consequences.

To change the relative route priority, use the following command:

ospf-intra | ospf-inter | ospf-as-external | ospf-extern1 | ospf-extern2] <priority>

Configuring IP Unicast Routing

This section describes the commands associated with configuring IP unicast routing on the switch. To

configure routing, follow these steps:

1 Create and configure two or more VLANs.

2 Assign each VLAN that will be using routing an IP address using the following command:

Table 35: Relative Route Priorities

Route Origin Priority

Direct 10

BlackHole 50

Static 1100

ICMP 1200

OSPFIntra 2200

OSPFInter 2300

RIP 2400

OSPFExtern1 3200

OSPFExtern2 3300

BOOTP 5000