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ManualsBrandsDell ManualsAccess PlatformsEMC Networking MX9116n
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Table Of Contents
Interface tracking
You can create an object that tracks the line-protocol state of an L2 interface, and monitors its operational up or down status.
You can configure up to 500 objects. Each object is assigned a unique ID.
When the link-level status goes down, the tracked resource status is also considered Down. If the link-level status goes up, the
tracked resource status is also considered Up. For logical interfaces such as port-channels or VLANs, the link-protocol status is
considered Up if any physical interface under the logical interface is Up.
The list of available interfaces include:
● ethernet — Physical interface
● port-channel — Port-channel identifier
● VLAN — Virtual local area network (VLAN) identifer
● Loopback — Loopback interface identifier
● mgmt — Management interface
1. Configure object tracking in CONFIGURATION mode, from 1 to 500.
track object-id
2. (Optional) Enter interface object tracking on the line-protocol state of an L2 interface in OBJECT TRACKING mode.
interface interface line-protocol
3. (Optional) Configure the time delay used before communicating a change to the status of a tracked interface in OBJECT
TRACKING mode, from 0 to 80 seconds; default 0.
delay [up seconds] [down seconds]
4. (Optional) View the tracked object information in EXEC mode.
show track object-id
5. (Optional) View all interface object information in EXEC mode.
show track interface
6. (Optional) View all IPv4 or IPv6 next-hop object information in EXEC mode.
show track [ip | ipv6]
7. (Optional) View brief status of object information in EXEC mode.
show track brief
Configure object tracking
OS10(config)# track 1
OS10(conf-track-1)# interface ethernet 1/1/1 line-protocol
OS10(conf-track-1)# delay up 20
OS10(conf-track-1)# delay down 10
OS10(conf-track-1)# do show track 1
Interface ethernet1/1/1 line-protocol
Line protocol is UP
1 changes, Last change 2017-04-26T06:41:36Z
Host tracking
If you configure an IP host as a tracked object, the entry or next-hop address in the ARP cache determines the Up or Down
state of the route.
A tracked host is reachable if there is an ARP cache entry for the router's next-hop address. An attempt to regenerate the ARP
cache entry occurs if the next-hop address appears before considering the route Down.
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Layer 3