
Chapter 7: VRRP Configuration Guide
106
SmartSwitch Router User Reference Manual
ip-redundancy show
The
ip-redundancy show
command reports information about a VRRP configuration. To
display VRRP information, enter the following commands in Enable mode.
VRRP Configuration Notes
•
The Master router sends keep-alive advertisements. The frequency of these keep-alive
advertisements is determined by setting the Advertisement interval parameter. The
default value is 1 second.
•
If a Backup router doesn’t receive a keep-alive advertisement from the current Master
within a certain period of time, it will transition to the Master state and start sending
advertisements itself. The amount of time that a Backup router will wait before it
becomes the new Master is based on the following equation:
Master-down-interval = (3 * advertisement-interval) + skew-time
The skew-time depends on the Backup router's configured priority:
Skew-time = ( (256 - Priority) / 256 )
Therefore, the higher the priority, the faster a Backup router will detect that the Master
is down. For example:
–
Default advertisement-interval = 1 second
–
Default Backup router priority = 100
–
Master-down-interval = time it takes a Backup to detect the Master is down
= (3 * adv-interval) + skew-time
= (3 * 1 second) + ((256 - 100) / 256)
= 3.6 seconds
•
If a Master router is manually rebooted, or if its interface is manually brought down, it
will send a special keep-alive advertisement that lets the Backup routers know that a
new Master is needed immediately.
Display information about all
virtual routers.
ip-redundancy show vrrp
Display information about all
virtual routers on a specified
interface.
ip-redundancy show vrrp interface
<interface>
Display detailed statistics about
a specific virtual router
ip-redundancy show vrrp
<vrid>
interface
<interface>
verbose
Содержание SmartSwitch Router
Страница 1: ...SmartSwitch Router User Reference Manual 9032578 04...
Страница 12: ...Notice 12 SmartSwitch Router User Reference Manual...
Страница 28: ...Preface 28 SmartSwitch Router User Reference Manual...
Страница 68: ...Chapter 3 Bridging Configuration Guide 68 SmartSwitch Router User Reference Manual...
Страница 74: ...Chapter 4 SmartTRUNK Configuration Guide 74 SmartSwitch Router User Reference Manual...
Страница 84: ...Chapter 5 DHCP Configuration Guide 84 SmartSwitch Router User Reference Manual...
Страница 108: ...Chapter 7 VRRP Configuration Guide 108 SmartSwitch Router User Reference Manual...
Страница 207: ...SmartSwitch Router User Reference Manual 207 Chapter 12 Multicast Routing Configuration Guide...
Страница 208: ...Chapter 12 Multicast Routing Configuration Guide 208 SmartSwitch Router User Reference Manual...
Страница 222: ...Chapter 13 IP Policy Based Forwarding Configuration Guide 222 SmartSwitch Router User Reference Manual...
Страница 232: ...Chapter 14 Network Address Translation Configuration Guide 232 SmartSwitch Router User Reference Manual...
Страница 254: ...Chapter 16 IPX Routing Configuration Guide 254 SmartSwitch Router User Reference Manual...
Страница 270: ...Chapter 17 Access Control List Configuration Guide 270 SmartSwitch Router User Reference Manual...
Страница 282: ...Chapter 18 Security Configuration Guide 282 SmartSwitch Router User Reference Manual...
Страница 294: ...Chapter 19 QoS Configuration Guide 294 SmartSwitch Router User Reference Manual...
Страница 298: ...Chapter 20 Performance Monitoring Guide 298 SmartSwitch Router User Reference Manual...
Страница 338: ...Chapter 22 WAN Configuration Guide 338 SmartSwitch Router User Reference Manual...