Cabletron Systems SSIM-R8-02 Specifikace stáhnout pdf (Strana 130)

Configuring VRRP

110 Enterasys Xpedition User Reference Manual

Basic VRRP Configuration

Figure 6 shows a basic VRRP configuration with a single virtual router. Routers R1 and R2

are both configured with one virtual router (

VRID=1). Router R1 serves as the Master and

Router R2 serves as the Backup. The four end hosts are configured to use 10.0.0.1/16 as

the default route. IP address 10.0.0.1/16 is associated with virtual router

VRID=1.

Figure 6. Basic VRRP Configuration

If Router R1 should become unavailable, Router R2 would take over virtual router

VRID=1

and its associated IP addresses. Packets sent to 10.0.0.1/16 would go to Router R2. When

Router R1 comes up again, it would take over as Master, and Router R2 would revert to

Backup.

Configuration of Router R1

The following is the configuration file for Router R1 in Figure 6.

Line 1 adds IP address 10.0.0.1/16 to interface test, making Router R1 the owner of this IP

address. Line 2 creates virtual router

VRID=1 on interface test. Line 3 associates IP address

10.0.0.1/16 with virtual router

VRID=1. Line 4 starts VRRP on interface test.

R1 R2

H1 H2 H3 H4

Default Route = 10.0.0.1/16

Master Backup

VRID=1

10.0.0.1/16

Interface Addr. = 10.0.0.1/16

VRID=1; Addr. = 10.0.0.1/16

Interface Addr. = 10.0.0.2/16

VRID=1; Addr. = 10.0.0.1/16

1: interface create ip test address-netmask 10.0.0.1/16 port et.1.1

2: ip-redundancy create vrrp 1 interface test

3: ip-redundancy associate vrrp 1 interface test address 10.0.0.1/16

4: ip-redundancy start vrrp 1 interface test

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Cabletron Systems SSIM-R8-02 Specifikace Strana 130