Creating Standby Group And Configuring Virtual Ip Address - 3Com MSR 50 Series Configuration Manual

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Creating Standby Group
and Configuring Virtual
IP Address
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To do...
Configure the association
between virtual IP address
and MAC address
CAUTION: You should configure this function before creating a standby group.
Otherwise, you cannot modify the mapping between the virtual IP address and the
MAC address.
You need to configure a virtual IP address for a standby group when creating the
standby group. A VRRP standby group is created automatically when you specify
the first virtual IP address for the standby group. If you specify a virtual IP address
for the standby group later, the virtual IP address is only added to the virtual IP
address list of the VRRP standby group.
Configuration prerequisites
Before creating standby group and configuring virtual IP address, you should first
configure the IP address of the interface and ensure that the virtual IP address to
be configured is in the same network segment as the IP address of the interface.
Configuration procedure
Follow these steps to create standby group and configure virtual IP address:
To do...
Enter system view
Enter the specified interface
view
Create standby group and
configure virtual IP address of
the standby group
CAUTION:
Both of the maximum number of standby groups on an interface and the
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maximum number of virtual IP addresses in a standby group are 16.
A standby group is removed after you remove all the virtual IP addresses in it. In
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addition, configurations on that standby group no longer take effect.
The virtual IP address of the virtual router can be either an unused IP address
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on the segment where the standby group resides or the IP address of an
interface on a router in the standby group. In the latter case, the router is
called the IP address owner.
The virtual IP address of the standby group cannot be 0.0.0.0,
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255.255.255.255, loopback address, non A/B/C address and other illegal IP
addresses such as 0.0.0.1.
Only when the configured virtual IP address and the interface IP address belong
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to the same segment and are legal host addresses can the standby group
operate normally. If the configured virtual IP address and the interface IP
address do not belong to the same network segment, or the configured IP
address is the network address or network broadcast address of the network
Use the command...
vrrp method { real-mac |
virtual-mac }
Use the command...
system-view
interface interface-type
interface-number
vrrp vrid virtual-router-id
virtual-ip virtual-address
Configuring VRRP for IPv4
Remarks
Optional
The virtual MAC address is
associated with the virtual IP
address by default.
Remarks
-
-
Required
Standup group is not created
by default.
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