# Monitoring the Statistics of VRRP Routers

#### Purpose

Display global statistics, interface statistics, or statistics per interface and VRID of configured VRRP routers.

#### Action

To display the statistics per interface:

    host1#show ip vrrp statistics interface fastEthernet 4/0
    Globals:
      checksumErrors: 0
      versionErrors: 0
      vrIdErrors: 1
      iccErrors: 0
      txErrors: 0
      rxErrors: 0

    Interface: fastEthernet4/0 vrrpVrid: 1
      becomeMaster: 10
      advertiseRcvd: 0
      advertiseIntervalErrors: 0
      authFailures: 0
      ipTtlErrors: 0
      priorityZeroPktsRcvd: 0
      priorityZeroPktsSent: 9
      invalidTypePktsRcvd: 0
      addressListErrors: 0
      invalidAuthType: 0
      authTypeMismatch: 0
      packetLengthErrors: 0

    Interface: fastEthernet4/0 vrrpVrid: 50
      becomeMaster: 0
      advertiseRcvd: 1000
      advertiseIntervalErrors: 0
      authFailures: 0
      ipTtlErrors: 0
      priorityZeroPktsRcvd: 0
      priorityZeroPktsSent: 0
      invalidTypePktsRcvd: 0
      addressListErrors: 0
      invalidAuthType: 0
      authTypeMismatch: 0
      packetLengthErrors: 0

To display the statistics per interface and VRID:

    host1#show ip vrrp statistics interface fastEthernet 4/0 1
    Interface: fastEthernet4/0 vrrpVrid: 1
      becomeMaster: 0
      advertiseRcvd: 0
      advertiseIntervalErrors: 0
      authFailures: 0
      ipTtlErrors: 0
      priorityZeroPktsRcvd: 0
      priorityZeroPktsSent: 0
      invalidTypePktsRcvd: 0
      addressListErrors: 0
      invalidAuthType: 0
      authTypeMismatch: 0
      packetLengthErrors: 0

To display the global statistics of a VRRP router:

    host1#show ip vrrp statistics global
    Globals:
      checksumErrors: 0
      versionErrors: 0
      vrIdErrors: 0
      iccErrors: 0
      txErrors: 0
      rxErrors: 0

#### Meaning

Table 27 lists the show ip vrrp statistics command output fields.

Table 27: show ip vrrp statistics Output Fields

Field Name | Field Description
--- | ---
Globals
checksumErrors | Total number of VRRP packets received with an invalid VRRP checksum value
versionErrors | Total number of VRRP packets received with an unknown or unsupported version number
vrIdErrors | Total number of VRRP packets received with an invalid VRID for this virtual router
iccErrors | Count of line module notifications that did not make it to the controller
txErrors | Count of advertisements that did not get sent due to resource limitations
rxErrors | Count of advertisements received that could not be parsed by VRRP applications
Interface | Fast Ethernet, Gigabit Ethernet, or 10-Gigabit Ethernet interface specifier and VRID
becomeMaster | Total number of times that this VRID state has transitioned to master
advertiseRcvd | Total number of VRRP advertisements received
advertiseIntervalErrors | Total number of VRRP advertisement packets received for which the advertisement interval is different from the one configured for the VRID
authFailures | Total number of VRRP packets received that do not pass the authentication check
ipTtlErrors | Total number of VRRP packets received with IP TTL (time-to-live) not equal to 255
priorityZeroPktsRcvd | Total number of VRRP packets received with a priority of 0
priorityZeroPktsSent | Total number of VRRP packets sent with a priority of 0
invalidTypePktsRcvd | Total number of VRRP packets received with an invalid value in the Type field
addressListErrors | Total number of VRRP packets received for which the address list does not match the locally configured list for the VRID
invalidAuthType | Total number of VRRP packets received with an unknown authentication type
authTypeMismatch | Total number of VRRP packets received with an authentication type not equal to the locally configured authentication method
packetLengthErrors | Total number of VRRP packets received with a packet length less than the length of the VRRP header

#### Related Documentation

- VRRP Overview
- Before You Configure VRRP
- Configuring VRRP