(Optional) Optimizing IPv4 over IPv6 Tunnel Performance

Procedure

1. Run system-view

   The system view is displayed.

2. Run interface tunnel interface-number

   The tunnel interface view is displayed.

3. Run tunnel ipv4-ipv6 encapsulation-limit encapsulation-limit

   The maximum encapsulation count of an IPv6 packet is specified.

   By default, an IPv4-over-IPv6 packet can be encapsulated four times.

4. Run tunnel ipv4-ipv6 flow-label label-value

   The flow label value is set.

   By default, the flow label value is 0.

5. Run tunnel ipv4-ipv6 hop-limit hop-limit

   The hop limit of the IPv6 tunnel packets is set.

   By default, the hop limit of the IPv6 tunnel packets is 64.

6. Run tunnel ipv4-ipv6 traffic-class { original | class-value }

   The traffic class is set.

   By default, the traffic class is 0.