Vrrp Commands - D-Link xStack Reference Manual

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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
enable vrrp
disable vrrp
create vrrp vrid
config vrrp vrid
config vrrp ipif
show vrrp
delete vrrp
Each command is listed, in detail, in the following sections.
enable vrrp
Purpose
Syntax
Description
Parameters
Restrictions
®
DGS-3600 Series Layer 3 Gigabit Ethernet Managed Switch CLI Manual
Parameters
{ping}
{ping}
<vrid 1-255> ipif <ipif_name 12> 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]}
<vrid 1-255> ipif <ipif_name 12> {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]}
<ipif_name 12> [authtype [none | simple authdata <string 8> | ip authdata
<string 16>]]
{ipif <ipif_name 12> {vrid <vrid 1-255>}}
{vrid <vrid 1-255> ipif <ipif_name 12>}
To enable the VRRP function on the Switch.
enable vrrp {ping}
This command will enable the VRRP function on the Switch.
{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.
Only Administrator and Operator-level users can issue this command.
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VRRP COMMANDS