Vrrp - D-Link xStack DGS-3620 Series Reference Manual

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xStack DGS-3620 Series Layer 3 Managed Stackable Gigabit Switch Web UI Reference Guide
Click the View Detail button to display the information of the specific entry.
Click the View Detail button to see the following window.
Figure 6-135 PIM for IPv6 Multicast Route S-G RPT Table – View Detail window
Click the View Detail button to display the information of the specific entry.
Click the View Detail button to see the following window.
Figure 6-136 PIM for IPv6 Multicast Route S-G RPT Table – View Detail window

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.
Figure 6-134 PIM for IPv6 Multicast Route S-G RPT Table window
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