Cisco WS-C3550-12G, Руководство пользователя

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Cisco Catalyst Switch Manager User Guide
OL-4930-01
Chapter 10 Virtual Interface Management
EtherChannel Management Window
•
State—Describes the interface state in the STP instance.
• Port Cost—Indicates the current calculated port path cost of the interface in the STP instance.
HSRP Tab
The following areas are available on the HSRP tab of the EtherChannel Management window:
• HSRP Group
•
Secondary IP
Note
The contents of this tab are disabled in a pure CatOS environment.
HSRP Group
The HSRP Group area provides the following information:
• Group—Lists HSRP groups deployed on an interface.
Note
There may be multiple groups deployed on an interface. Using a group number on one logical
or physical interface does not preclude using it on another.
•
Virtual IP—Primary virtual IP address of the HSRP group. If this address is not configured, the
agent will attempt to discover the virtual address through a discovery process which scans the hello
messages.
• Preempt—If enabled, the current router will attempt to overthrow a lower priority active router and
attempt to become the active router. If disabled, this router will become the active router only if there
is no such router or the active router fails.
–
true—Preempt enabled.
– false—Preempt disabled.
•
Delay Minimum—Time difference (in seconds) between a router power up and the time it can start
preempting the currently active router. This value is only applicable when preemption is enabled.
• Priority—Priority value that prioritizes a potential hot standby router. The range is 1 to 255, where
1 indicates the lowest priority and 255 indicates the highest priority. The default priority value is
100. The router in the HSRP group with the highest priority value becomes the active router.
•
Hello Interval—Hello interval in milliseconds. If this value is not configured, it can be learned from
the active router.
• Hold Interval—Hold interval in milliseconds. If this value is not configured, it can be learned from
the active router.
•
Add/Remove HSRP Group—This action deploys or remove an HSRP group on the interface. The
HSRP group may optionally be assigned a primary IP address. If no address is explicitly assigned,
the device will attempt to discover the virtual IP address from the active server using hello messages.
EtherChannel Management—HSRP Group Configuration window launches when you click this
button.