Virtual Router Redundancy Protocol Help

Help for VRRP Configuration

Configurable Data

• VRRP Admin Mode - This sets the administrative status of VRRP in the router to active or inactive. Select enable or disable from the pulldown menu. The default is disable.

Command Buttons

• Submit - Send the updated configuration to the switch. Configuration changes take effect immediately. These changes will not be retained across a power cycle unless a save is performed.

Help for Virtual Router Configuration

Selection Criteria

• VRID and Slot/Port - Select 'Create' from the pulldown menu to configure a new Virtual Router, or select one of the existing Virtual Routers, listed by interface number and VRID.

Configurable Data

• VRID - This field is only configurable if you are creating new Virtual Router, in which case enter the VRID in the range 1 to 255 .

• Slot/Port - This field is only configurable if you are creating new Virtual Router, in which case select the Slot/Port for the new Virtual Router from the pulldown menu.

• Pre-empt Mode - Select enable or disable from the pulldown menu. If you select enable a backup router will preempt the master router if it has a priority greater than the master virtual router's priority provided the master is not the owner of the virtual router IP address. The default is enable.

• Priority - Enter the priority value to be used by the VRRP router in the election for the master virtual router. If the Virtual IP Address is the same as the interface IP Address, the priority gets set to 255 no matter what the user enters. If the user enters a priority of 255 when the Virtual and interface IP Addresses are not the same, the priority gets set to the default value of 100.

• Advertisement Interval - Enter the time, in seconds, between the transmission of advertisement packets by this virtual router. Enter a number between 1 and 255. The default value is 1 second.

• IP Address - Enter the IP Address associated with the Virtual Router. The default is 0.0.0.0.

• Authentication Type - Select the type of Authentication for the Virtual Router from the pulldown menu. The default is None. The choices are:
  • 0-None - No authentication will be performed.
  • 1-Simple - Authentication will be performed using a text password.

• Authentication Data - If you selected simple authentication, enter the password.

• Status - Select active or inactive from the pulldown menu to start or stop the operation of the Virtual Router. The default is inactive.

Non-Configurable Data

• Interface IP Address - Indicates the IP Address associated with the selected interface.

Command Buttons

• Submit - Send the updated configuration to the switch. Configuration changes take effect immediately. These changes will not be retained across a power cycle unless a save is performed.
• Delete - Delete the selected Virtual Router. Note that the router can not be deleted if there are secondary addresses configured.
• Secondary IP Address - Proceed to the Secondary IP Address configuration screen.

Help for Virtual Router Status

Non-Configurable Data

• VRID - Virtual Router Identifier.

• Slot/Port - Indicates the interface associate with the VRID.

• Priority - The priority value used by the VRRP router in the election for the master virtual router.

• Pre-empt Mode -
  • Enable - if the Virtual Router is a backup router it will preempt the master router if it has a priority greater than the master virtual router's priority provided the master is not the owner of the virtual router IP address.
  • Disable
  - if the Virtual Router is a backup router it will not preempt the master router even if its priority is greater.

• Advertisement Interval - the time, in seconds, between the transmission of advertisement packets by this virtual router.

• Virtual IP Address - The IP Address associated with the Virtual Router.

• Interface IP Address - The actual IP Address associated with the interface used by the Virtual Router.

• Owner - Set to 'True' if the Virtual IP Address and the Interface IP Address are the same, otherwise set to 'False'. If this parameter is set to 'True', the Virtual Router is the owner of the Virtual IP Address, and will always win an election for master router when it is active.

• VMAC Address - The virtual MAC Address associated with the Virtual Router, composed of a 24 bit organizationally unique identifier, the 16 bit constant identifying the VRRP address block and the 8 bit VRID.

• Auth Type - The type of authentication in use for the Virtual Router
• None
• Simple

• State - The current state of the Virtual Router:
• Initialize
• Master
• Backup

• Status - The current status of the Virtual Router:
• Inactive
• Active

Command Buttons

• Refresh - Refresh the data on the screen with the present state of the data in the switch.

Help For Virtual Router Statistics

Selection Criteria

• VRID and Slot/Port - Select the existing Virtual Router, listed by interface number and VRID, for which you want to display statistical information.

Non-Configurable Data

• Router Checksum Errors - The total number of VRRP packets received with an invalid VRRP checksum value.

• Router Version Errors - The total number of VRRP packets received with an unknown or unsupported version number.

• Router VRID Errors - The total number of VRRP packets received with an invalid VRID for this virtual router.

• VRID - the VRID for the selected Virtual Router.

• Slot/Port - The Slot/Port for the selected Virtual Router.

• Up Time - The time, in days, hours, minutes and seconds, that has elapsed since the virtual router transitioned to the initialized state.

• State Transitioned to Master - The total number of times that this virtual router's state has transitioned to Master.

• Advertisement Received - The total number of VRRP advertisements received by this virtual router.

• Advertisement Interval Errors - The total number of VRRP advertisement packets received for which the advertisement interval was different than the one configured for the local virtual router .

• Authentication Failure - The total number of VRRP packets received that did not pass the authentication check.

• IP TTL Errors - The total number of VRRP packets received by the virtual router with IP TTL (Time-To-Live) not equal to 255.

• Zero Priority Packets Received - The total number of VRRP packets received by the virtual router with a priority of '0'.

• Zero Priority Packets Sent - The total number of VRRP packets sent by the virtual router with a priority of '0'.

• Invalid Type Packets Received - The number of VRRP packets received by the virtual router with an invalid value in the 'type' field.

• Address List Errors - The total number of packets received for which the address list does not match the locally configured list for the virtual router.

• Invalid Authentication Type - The total number of packets received with an unknown authentication type.

• Authentication Type Mismatch - The total number of packets received with an authentication type different to the locally configured authentication method.

• Packet Length Errors - The total number of packets received with a packet length less than the length of the VRRP header.

Command Buttons

• Refresh - Refresh the data on the screen with the present state of the data in the switch.

Help for VRRP Secondary Address Configuration

Selection Criteria

• Secondary Address - The ip address for which data is to be displayed. Create must be selected to add a secondary address to the interface.

Configurable Data

• IP Address - Enter the IP address for the interface. This address must be a member of one of the subnets currently configured on the interface. This value is readonly once configured.

Non-Configurable Data

• Slot/Port - The interface for which data is to be displayed or configured.
• Virtual Router ID - The Virtual Router ID for which data is to be displayed or configured.
• Primary IP Address - The Primary IP Address of the Virtual Router.

Command Buttons

• Submit - Update the switch with the values on this screen. If you want the switch to retain the new values across a power cycle, you must perform a save.
• Delete - Delete the selected secondary IP Address
• Cancel - Return to the Virtual Router Configuration screen.