R3303-HP HSR6800 Routers Layer 3 - IP Services Command Reference

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Usage guidelines
If no service card is specified for forwarding the traffic on the current interface, a GRE, IPv4 over IPv4, or
IPv4 over IPv6 tunnel automatically selects a service card. If the specified source interface is a virtual
interface such as loopback interface and virtual template interface, or no source interface is specified
and the outbound interface of the route to the destination address is a virtual interface, the GRE, IPv4
over IPv4, or IPv4 over IPv6 tunnel uses the main board for processing traffic on the current tunnel
interface. To prevent overload on the main board in such cases, specify the service card for forwarding
the traffic on the tunnel interface by using the service command.
If you remove the specified service card, traffic on the tunnel interface cannot be forwarded even if the
tunnel interface is up. After you insert the service card, traffic forwarding recovers.
The service command no on the router where the GRE tunnel uses the SAP-4EXP card for hardware
forwarding.
If the tunnel source is a Layer 3 aggregate interface, you must execute this command to specify the
service card for forwarding traffic on the tunnel interface.
Examples
# In standalone mode, specify service card 2 for forwarding traffic on interface Tunnel 200.
<Sysname> system-view
[Sysname] interface tunnel 200
[Sysname-Tunnel200] service slot 2
# In IRF mode, specify service card 2 of IRF member device 2 for forwarding traffic on interface Tunnel
200.
<Sysname> system-view
[Sysname] interface tunnel 200
[Sysname-Tunnel200] service chassis 2 slot 2
shutdown
Use shutdown to shut down a tunnel interface.
Use undo shutdown to bring up a tunnel interface.
Syntax
shutdown
undo shutdown
Default
A tunnel interface is in the up state.
Views
Tunnel interface view
Default command level
2: System level
Examples
# Shut down interface Tunnel 1.
<Sysname> system-view
[Sysname] interface tunnel 1