D-Link 3312SR Reference Manual - Page 226

DGS-3312SR Layer 3 Gigabit Switch

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VRRP C

OMMANDS

VRRP

or

Virtual Routing Redundancy Protocol

is a function on the switch that dynamically assigns responsibility for a virtual

router to one of the VRRP routers on a LAN. The VRRP router that controls the IP address associated with a virtual router is

called the Master, and will forward packets sent to this IP address. This will allow any Virtual Router IP address on the LAN to

be used as the default first hop router by end hosts. Utilizing VRRP, the administrator can achieve a higher available default

path cost without needing to configure every end host for dynamic routing or routing discovery protocols.

Statically configured default routes on the LAN are prone to a single point of failure. VRRP is designed to eliminate these

failures by setting an election protocol that will assign a responsibility for a virtual router to one of the VRRP routers on the

LAN. When a virtual router fails, the election protocol will select a virtual router with the highest priority to be the Master

router on the LAN. This retains the link and the connection is kept alive, regardless of the point of failure.

To configure VRRP for virtual routers on the switch, an IP interface must be present on the system and it must be a part of a

VLAN. VRRP IP interfaces may be assigned to every VLAN, and therefore IP interface, on the switch. VRRP routers within the

same VRRP group must be consistent in configuration settings for this protocol to function optimally.

The VRRP commands in the Command Line Interface (CLI) are listed, along with the appropriate parameters, in the following

table.

Command

Parameters

enable vrrp

{ping}

disable vrrp

{ping}

create vrrp ipif

<ipif_name 12> vrid <vrid 1-255> ipaddress <ipaddr> {state

[enable | disable] | priority <int 1-254> | advertisement_interval

<int 1-255> | preempt [true | false] | critical_ip <ipaddr> |

critical_ip_state [enable | disable]}

config vrrp ipif

<ipif_name 12>

| vrid <vrid 1-255> {state [enable | disable] |

priority <int 1-254> | ipaddress <ipaddr> |

advertisement_interval <int 1-255> | preempt [true | false] |

critical_ip <ipaddr> | critical_ip_state [enable | disable]}

config vrrp ipif

authtype

<ipif_name 12> [authtype [none | simple authdata <string 8> | ip

authdata <string 16>]

show vrrp

{ipif <ipif_name 12> {vrid <vrid 1-255>}

delete vrrp

{ipif <ipif_name 12> {vrid <vrid 1-255>}

Each command is listed, in detail, in the following sections.

enable vrrp

Purpose

To enable a VRRP interface configuration.

Syntax

enable vrrp {ping}

Description

This command will enable the VRRP interface configuration on the

switch.

Parameters

{ping}

– Adding this parameter to the command will allow the virtual

IP address to be pinged from other host end nodes to verify

connectivity. This will only enable the ping connectivity check

function. To enable the VRRP protocol on the switch, omit this

parameter. This command is disabled by default.

Restrictions

Only administrator-level users can issue this command.

Section	Page
Introduction	7
	7
	7
Accessing the Switch via the Serial Port	7
Setting the Switch’s IP Address	8
Using the Console CLI	10
	10
	10
Connecting to the Switch	10
Command Syntax	16
Basic Switch Commands	18
Switch Port Commands	30
Port Security Commands	33
Network Management (SNMP) Commands	37
Switch Utility Commands	58
Network Monitoring Commands	62
Multiple Spanning Tree Protocol (MSTP) Commands	75
Forwarding Database Commands	88
Broadcast Storm Control Commands	95
QoS Commands	97
Port Mirroring Commands	105
VLAN Commands	110
Link Aggregation Commands	117
IP Commands (Including IP Multinetting)	123
IGMP Commands	128
IGMP Snooping Commands	131
MAC Notification Commands	139
Access Authentication Control Commands	143
SSH Commands	167
SSL Commands	175
802.1X Commands	180
Access Control List (ACL) Commands	192
Traffic Segmentation Commands	201
Stacking Commands	203
D-Link Single IP Management Commands	206
Time and SNTP Commands	216
ARP Commands	222
VRRP Commands	226
Routing Table Commands	233
Route Redistribution Commands	237
BOOTP Relay Commands	243
DNS Relay Commands	247
RIP Commands	251
DVMRP Commands	254
PIM Commands	259
IP Multicasting Commands	263
MD5 Configuration Commands	265
OSPF Configuration Commands	268
Command History List	288
Technical Specifications	290
	296
	296
	296
	296
	296
	296
	296
Copyright Statement: No part of this publication or documentation accompanying this product may be reproduced in any form or by any means or used to make any derivative such as translation, transformation, or adaptation without permission from D-Link Co	296

D-Link 3312SR Reference Manual - Page 226

VRRP Commands, enable vrrp

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