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Priority
Displays the priority of the virtual router. A higher priority will increase the
probability that this router will become the Master router of the group. A
lower priority will increase the probability that this router will become the
backup router. The lower the number, the higher the priority.
Master IP Address
Displays the IP address of the Master router for the VRRP function.
Critical IP Address
Displays the critical IP address of the VRRP function. This address will
judge if a virtual router is qualified to be a master router.
Checking Critical IP
Displays the status of the Critical IP address. May be enabled or disabled.
Advertisement Interval
Displays the time interval, in seconds, that VRRP messages are sent out to
the network.
Preempt Mode
Displays the mode for determining the behavior of backup routers set on
this VRRP interface. True will denote that this will be the backup router, if
the routers priority is set higher than the master router. False will disable
the backup router from becoming the master router.
Virtual Router Up Time
Displays the time, in minutes, since the virtual router has been initialized
IP Multicast
Controlling Multicast Routing on the Switch includes setting up IGMP for IP interfaces, PIM and
DVMRP. This chapter describes how to set these up. For an explanation of how these protocols
function, read Appendix C.
IGMP Interface Settings
IGMP for IP interfaces function the same way they do for individual ports or VLANs in Layer 2. Most
of the parameters are the same as well, except instead of configuring for VLANs you are setting up
IGMP for different subnets (IP interfaces).
The IGMP interface links are located in the IP Multicast subfolder in the Layer 3 IP Networking
configuration folder. Click IGMP Interface Settings:
IGMP Interface Table window
The Internet Group Multicasting Protocol (IGMP) can be configured on the Switch on a per-IP inter-
face basis. Each IP interface configured on the Switch is displayed in the IGMP Interface Table. To
configure an IP interface click on the hyperlinked Interface Name:
