GTP¶

GTP is a protocol used to carry user traffic between a radio access mobile network and an external core network, usually the Internet. For that purpose, GTP tunnels are created for each user session, and attached to a GTP interface.

To configure a GTP interface, enter the context interface with the type gtp from the target VRF.

vsr> edit running
vsr running config# vrf main
vsr running vrf main# interface gtp gtp0
vsr running gtp gtp0# commit

Here is the state of the interface after the configuration is applied:

vsr running vrf main# interface gtp gtp0
vsr running gtp gtp0# show state
gtp gtp0
    mtu 1500
    promiscuous false
    enabled true
    oper-status UP
    counters
        in-octets 0
        in-unicast-pkts 0
        in-discards 0
        in-errors 0
        out-octets 0
        out-unicast-pkts 0
        out-discards 0
        out-errors 0
        ..
    ..

The same configuration can be made using this NETCONF XML configuration:

vsr running gtp gtp0# show config xml absolute
<config xmlns="urn:6wind:vrouter">
  <vrf>
    <name>main</name>
    <interface xmlns="urn:6wind:vrouter/interface">
      <gtp xmlns="urn:6wind:vrouter/gtp">
       <name>gtp0</name>
       <enabled>true</enabled>
      </gtp>
    </interface>
  </vrf>
</config>