On 4 March 2018 at 12:19, Joe Stringer <j...@ovn.org> wrote: > ?On 2 March 2018 at 04:32, Yi Yang <yi.y.y...@intel.com> wrote: >> From: Feng Yang <feng.y...@intel.com> >> >> GPRS Tunneling Protocol (GTP) is a group of IP-based communications >> protocols used to carry general packet radio service (GPRS) within >> GSM, UMTS and LTE networks. >> >> GTP can be decomposed into separate protocols, GTP-C, GTP-U and GTP'. >> >> GTP-U is used for carrying user data within the GPRS core network and >> between the radio access network and the core network. The user data >> transported can be packets in any of IPv4, IPv6, or PPP formats. >> >> GTP-U is user plane communication protocol between Serving-Gateway >> (S-GW) and PDN-Gateway (P-GW) as well as Multi-access Edge Computing >> (MEC). >> >> This patch added a new tunnel type 'gtpu' into userspace datapath and >> two new match fields tun_gtpu_flags and tun_gtpu_msgtype, tun_id is >> reused for GTP Tunnel Endpoint ID (TEID). >> >> The below are commands for gtpu tunnel add: >> >> $ sudo ovs-vsctl add-br br-int -- set bridge br-int datapath_type=netdev >> protocols=OpenFlow13 >> $ sudo ovs-vsctl add-port br-int gtpu1 -- set interface gtpu1 type=gtpu >> options:packet_type=legacy_l3 options:remote_ip=flow options:key=flow >> options:dst_port=2152 >> >> test-flows-gtpu.txt is openflow table for gtpu tunnel test: >> >> $ cat test-flows-gtpu.txt >> table=0,icmp,in_port=4 >> actions=load:0xc0a83249->NXM_NX_TUN_IPV4_DST[],load:0x9->NXM_NX_TUN_ID[0..31],output:2 >> table=0,tcp,tp_dst=80,in_port=4 >> actions=load:0xc0a83249->NXM_NX_TUN_IPV4_DST[],load:0x9->NXM_NX_TUN_ID[0..31],output:2 >> table=0,in_port=2,tun_id=0x10,tun_gtpu_flags=0x30,tun_gtpu_msgtype=255 >> actions=set_field:00:00:22:22:22:22->eth_src,set_field:00:00:11:11:11:11->eth_dst,output:4 >> table=0,actions=NORMAL >> >> Signed-off-by: Feng Yang <feng.y...@intel.com> >> Signed-off-by: Yi Yang <yi.y.y...@intel.com> >> --- > > Hi Yi, thanks for this work. Some minor comments below, but this is > just a "drive-by" review. I hope that others with more experience with > GTP will take a look as well.
Realised Feng was the author, thanks to you too! _______________________________________________ dev mailing list d...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-dev
