xStack
®
DGS-3600 Series Layer 3 Managed Gigabit Ethernet Switch
Figure 4- 104. DNS Resolver Static Host Name Settings window
The following fields can be set:
Parameter
Description
Host Name
Enter the host’s host name.
IP Address
Enter the host’s IP address.
Click
Apply
to implement changes made.
DNS Resolver Dynamic Host Name Table
This window is used to display or delete entries on the DNS Resolver Dynamic Host Name Table.
To view this window, click
L3 Features > DNS Resolver > DNS Resolver Dynamic Host Name Table
, as shown below:
Figure 4- 105. DNS Resolver Dynamic Host Name Table window
To remove an entry from the table, click its corresponding
under the Delete heading.
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 enable VRRP globally on the Switch.
To view this window, click
L3 Features > VRRP > VRRP Global Settings
, as shown below:
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