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Dell Configuration Guide for the S4048–ON System 9.14.2.6

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Tracking an Interface

To track an interface, use the following commands.

NOTE The sum of all the costs for all tracked interfaces must be less than the configured priority of the VRRP group.
  • Monitor an interface and, optionally, set a value to be subtracted from the interface’s VRRP group priority.
    INTERFACE-VRID mode
    track interface [priority-cost cost]
    The cost range is from 1 to 254.
    The default is 10.
  • (Optional) Display the configuration and the UP or DOWN state of tracked objects, including the client (VRRP group) that is tracking an object’s state.
    EXEC mode or EXEC Privilege mode
    show track
  • (Optional) Display the configuration and the UP or DOWN state of tracked interfaces and objects in VRRP groups, including the time since the last change in an object’s state.
    EXEC mode or EXEC Privilege mode
    show vrrp
  • (Optional) Display the configuration of tracked objects in VRRP groups on a specified interface.
    EXEC mode or EXEC Privilege mode
    show running-config interface interface

Examples of Configuring and Viewing the track Command

The following example shows how to configure tracking using the track command.

DellEMC(conf-if-te-1/1)#vrrp-group 111
DellEMC(conf-if-te-1/1-vrid-111)#track Tengigabitethernet 1/2

The following example shows how to verify tracking using the show conf command.

DellEMC(conf-if-te-1/1-vrid-111)#show conf
!
  vrrp-group 111
    advertise-interval 10
    authentication-type simple 7 387a7f2df5969da4
    no preempt
    priority 255
    track TenGigabitEthernet 1/2
    virtual-address 10.10.10.1
    virtual-address 10.10.10.2
    virtual-address 10.10.10.3
    virtual-address 10.10.10.10

The following example shows verifying the tracking status.

DellEMC#show track

Track 2
  IPv6 route 2040::/64 metric threshold
  Metric threshold is Up (STATIC/0/0)
    5 changes, last change 00:02:16
  Metric threshold down 255 up 254
  First-hop interface is TenGigabitEthernet 1/3
  Tracked by:
    VRRP TenGigabitEthernet 1/8 IPv6 VRID 1

Track 3
  IPv6 route 2050::/64 reachability
  Reachability is Up (STATIC)
    5 changes, last change 00:02:16
  First-hop interface is TenGigabitEthernet 1/3
  Tracked by:
    VRRP TenGigabitEthernet 1/8 IPv6 VRID 1

The following example shows verifying the VRRP status.

DellEMC#show vrrp
------------------

TenGigabitEthernet 1/8, IPv6 VRID: 1, Version: 3, Net: fe80::201:e8ff:fe01:95cc
VRF: 0 default
State: Master, Priority: 100, Master: fe80::201:e8ff:fe01:95cc (local)
Hold Down: 0 centisec, Preempt: TRUE, AdvInt: 100 centisec
Accept Mode: FALSE, Master AdvInt: 100 centisec
Adv rcvd: 0, Bad pkts rcvd: 0, Adv sent: 310
Virtual MAC address:
  00:00:5e:00:02:01
Virtual IP address:
  2007::1 fe80::1
Tracking states for 2 resource Ids:
  2 - Up IPv6 route, 2040::/64, priority-cost 20, 00:02:11
  3 - Up IPv6 route, 2050::/64, priority-cost 30, 00:02:11

The following example shows verifying the VRRP configuration on an interface.

DellEMC#show running-config interface tengigabitethernet 1/8

interface TenGigabitEthernet 1/8
  no ip address
  ipv6 address 2007::30/64

vrrp-ipv6-group 1
  track 2 priority-cost 20
  track 3 priority-cost 30
  virtual-address 2007::1
  virtual-address fe80::1
no shutdown

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