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Enabling mac advertisement through vxlan is-is, Tuning vxlan is-is parameters, Required.) – H3C Technologies H3C S6800 Series Switches User Manual

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Step Command

Remarks

2.

Enter VXLAN IS-IS view.

vxlan-isis

By default, the VXLAN IS-IS process is
not created.
The VTEP creates the VXLAN IS-IS

process if it has not been created.

3.

Enable VXLAN
autonegotiation.

negotiate-vni enable

By default, VXLAN IS-IS does not
exchange VXLAN IDs.

Enabling MAC advertisement through VXLAN IS-IS

To advertise and receive MAC reachability information through VXLAN IS-IS:

Step Command Remarks

1.

Enter system view.

system-view

N/A

2.

Enter VXLAN IS-IS view. vxlan-isis

By default, the VXLAN IS-IS process is
not created.

3.

Enable MAC

advertisement through
VXLAN IS-IS.

mac-synchronization enable

By default, VXLAN IS-IS does not
advertise or receive MAC reachability

information.

Tuning VXLAN IS-IS parameters

Tune VXLAN IS-IS parameters on a VXLAN or NVE tunnel interface to optimize the protocol performance.
On an NVE tunnel interface, the VXLAN IS-IS parameter changes apply to all VXLAN tunnels that are set

up using the NVE tunnel interface.

Setting the VXLAN IS-IS hello interval and the hello multiplier for
calculating the adjacency hold time

VTEPs send VXLAN IS-IS hellos over VXLAN tunnels to establish and maintain adjacencies and elect a

DED on each tunnel. A short interval increases the speed of network convergence but requires more

system resources.
Adjacency hold time sets the amount of time that the remote VTEPs can retain the adjacency with the
local VTEP before an adjacency update.

If Graceful Restart is disabled, the adjacency hold time equals the VXLAN IS-IS hello interval
multiplied by the hello multiplier.

If Graceful Restart is enabled, the adjacency hold time equals the restart interval or equals the
VXLAN IS-IS hello interval multiplied by the hello multiplier, whichever is greater.

VTEPs send their adjacency hold time in hello packets to update the adjacencies with their neighbors. A

VTEP removes the adjacency with a neighbor if it does not receive a hello packet from the neighbor
before the timer expires.