The VRRP statistics screen displays VRRP (Virtual Router Redundancy Protocol) configuration statistics supporting router redundancy in a wireless network requiring high availability.
To review a selected controller or service platform's VRRP statistics:
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screen displays in the right-hand pane.Refer to the Global Error Status field to review the various sources of packet errors logged during the implementation of the virtual route.
Errors include the mismatch of authentication credentials, invalid packet checksums, invalid packet types, invalid virtual route IDs, TTL errors, packet length errors and invalid (non matching) VRRP versions.
VRID | Lists a numerical index (1 - 254) used to differentiate VRRP configurations. The index is assigned when a VRRP configuration is initially defined. This ID identifies the virtual router a packet is reporting status for. |
Virtual IP Address | Lists the virtual interface IP address used as the redundant gateway address for the virtual route. |
Master IP Address | Displays the IP address of the elected VRRP master. A VRRP master (once elected) responds to ARP requests, forwards packets with a destination link layer MAC address equal to the virtual router MAC address, rejects packets addressed to the IP address associated with the virtual router and accepts packets addressed to the IP address associated with the virtual router. |
Interface Name | Displays the interfaces selected to supply VRRP redundancy failover support. |
Version | Display VRRP version 3 (RFC 5798) or 2 (RFC 3768) as selected to set the router redundancy. Version 3 supports sub-second (centisecond) VRRP failover and support services over virtual IP. |
State | Displays the current state of each listed virtual router ID. |
The Configuration area displays the following information:
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Virtual MAC Address | Lists the alpha numeric virtual MAC address utilized by the selected VRID. |
Local IP Address | This address represents an alternative to an interface IP address. The last byte of the address (XX) is the VRID, which is different for each virtual router in the network. |
Critical Resource | Displays the critical resource currently utilized by the selected VRID. |
CRM Status | Lists operational network status of the critical resource used by this VRID. |
Sync Group Failure | Lists any sync failures detected with the sync group of virtual IP addresses. |
Interface Status | Lists the operational network status of the interfaces selected to supply VRRP redundancy failover support. |
Master Transitions | Lists the number of transitions to master router designation that have occurred with this VRID‘s router. |
Master Reason | Displays an event message in respect the dedicated VRRP router‘s availability. |
Advertisement Pkts Received | Lists the number of router advertisements received by this selected VRID. Router advertisements are periodically sent to hosts or sent in response to solicitation requests. Router advertisements contain prefixes used for link determination, address configuration and maximum hop limits. |
Advertisement Interval Errors | Lists this VRID‘s number of advertisement prefix errors for link determination, address configuration and maximum hop limits. |
Advertisement Pkts Sent | Lists the number of router advertisements sent by this selected VRID. Router advertisements are periodically sent to hosts or sent in response to solicitation requests. Router advertisements contain prefixes used for link determination, address configuration and maximum hop limits. |
Received Pkts in Init State | Lists the number of packets received by the selected VRID when a router receives a hello packet but the local router ID is not listed in the received neighbor field. This means bidirectional communication is not been established. |
Received Pkts with Priority Zero | Lists this VRID‘s number of received packets with a value of zero. |
Sent Pkts with Priority Zero | Lists this VRID‘s number of sent packets with a value of zero. |
Address List Errors | Lists the number of router event errors detected where an address that could not be resolved and bidirectional communication could not be established. |