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xStack
SSM Service Model
State
SSM Group Address
SSM Group Mask
Click the Apply button to accept the changes made.
VRRP
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.
VRRP Global Settings
This window is used to configure the VRRP Global settings for this switch.
To view the following window, click L3 Features > VRRP > VRRP Global Settings, as shown below:
The fields that can be configured are described below:
Parameter
VRRP State
Non-owner Response
Ping
Click the Apply button to accept the changes made.
VRRP Virtual Router Settings
This window is used to configure the VRRP virtual router settings.
To view the following window, click L3 Features > VRRP > VRRP Virtual Router Settings, as shown below:
DES-3810 Series Layer 3 Managed Ethernet Switch Web UI Reference Guide
Click the radio buttons to enable or disable the SSM service model on the Switch.
Enter the group address range for the SSM service in IPv4. Tick the Default check box to
indicate that the group address range is 232.0.0.0/8.
Enter the netmask of the SSM group.
Figure 6-75 VRRP Global Settings window
Description
Specifies whether the VRRP Global state is enabled or disabled.
Specifies that the virtual IP address is allowed to be pinged from other host end nodes to
verify connectivity.
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