H3C Technologies H3C S10500 Series Switches User Manual
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Associating an EVI tunnel interface with a track entry
EVI IS-IS uses a hello mechanism to monitor the connectivity of each EVI link on an EVI tunnel. To detect
the connectivity of a particular EVI link more quickly, you can associate its tunnel interface with a track
entry. The monitoring protocol used in this entry can only be BFD.
EVI IS-IS changes the state of an EVI-Link interface in response to the track entry state, as shown in
Table 1 Action on the monitored EVI-Link in response to the track entry state change
Track entry state
State of the monitored EVI link
Action on the EVI-Link interface
Positive
The EVI link is operating correctly.
Places the EVI-Link interface in up
state.
Negative
The EVI link has failed.
Places the EVI-Link interface in down
state.
NotReady
The EVI link is not monitored.
This situation occurs when the Track module
or the monitoring module is not ready (for
example, the Track module is restarting or the
monitoring settings are incomplete). In this
situation, EVI cannot obtain information
about the EVI link from the Track module.
N/A
For more information about configuring a track entry, see Track configuration in High Availability
Configuration Guide.
To associate an EVI tunnel interface with a track entry:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter EVI tunnel interface view. interface tunnel number [ mode
evi ]
N/A
3.
Associate a track entry with
the tunnel interface.
evi isis track track-entry-number
By default, an EVI tunnel interface is
not associated with any track entry.
You can associate an EVI tunnel
interface with only one track entry.
Specifying a routing policy for an EVI IS-IS process
You can configure a routing policy to match MAC reachability information that can be advertised to the
remote EVI sites. The routing policy is also called a reachability information filtering policy.
The routing policy for EVI IS-IS can only contain the following filters:
•
MAC list.
•
VLAN list.
For more information about configuring routing policies, see Layer 3—IP Routing Configuration Guide.
To specify a routing policy for an EVI IS-IS process: