ELTEX MES3108 - 5.32.5 Configuration of Virtual Router Redundancy Protocol (VRRP)

224 MES3000 Ethernet switch series
console(config-ip)#
Table 5.276 - Commands of ip interface configuration mode
Command
Value/Default value
Action
bfd interval send_interval
min_rx recv_interval
send_interval: (50..1000)/-
recv_interval: (50..1000)/-
Enables BFD on interface and establishes intervals of sending and
receipt of BFD announces. Interval of sending is regulated by
send_interval parameter. Minimum allowed interval of announces
receipt is regulated by recv_interval parameter.
no bfd interval
Restores default value.
ospf bfd [disable]
-/enabled
Enables/disables BFD for this interface.
Table 5.277 - Commands of privileged EXEC mode
Command
Value
Action
show bfd neighbors
-
Displays information about BFD neighbours
5.32.5 Configuration of Virtual Router Redundancy Protocol (VRRP)
VRRP is designed for backup of routers acting as gateways by default. This is achieved by joining IP
interfaces of the group of routers into one virtual interface which will be used as default gateway for
computers of the network. On a channel level the reserved interfaces have MAC address
00:00:5E:00:01:XX, where XX is number of the VRRP (VRID) group.
Only one physical router can route the traffic on virtual IP interface (VRRP master), rest of routers of
the group are designed for backup (VRRP backup). Selection of VRRP master is performed according to
RFC 5798. If current master becomes unavailable then selection of master is repeated. The highest priority
belongs to router with own IP address which matches the virtual one. In case of availability it always
becomes VRRP master. The maximum number of VRRP processes - 32.
Commands of configuration mode of interfaces Ethernet, VLAN and interface of group of
ports
Type of request of the line in interfaces Ethernet, VLAN, and interface of group of ports
configuration mode:
console(config-if)#
Table 5.278 – Commands of configuration mode of interfaces Ethernet, VLAN and interface of group of
ports
Command
Value/Default value
Action
vrrp vrid description text
vrid: (1-255);
text: (1-160 digits).
Addition of target description or use for VRRP router with vrid
identifier.
no vrrp vrid description
Removal of description of VRRP router.
vrrp vrid ip ip_address
vrid: (1-255)
Determination of IP address of VRRP router.
no vrrp vrid ip [ip_address ]
Removal of IP address of VRRP from the router. If IP address is not
specified as a parameter, then all IP addresses of virtual router are
removed, as a result the virtual router vrid will be removed from the
device.
vrrp vrid preempt
vrid: (1-255)
By default: enabled
Enabling the mode at which backup router with higher priority will try
to take the role of master from current master router with lower
priority.
The router which is owner of the IP address of router will
intercept role of master regardless of settings of this command.
no vrrp vrid preempt
Setting the default value.