mpls_over_udp_tunnel_hashing_test - openconfig/featureprofiles GitHub Wiki
Create AFT entries using gRIBI to match on next hop group in a network-instance and encapsulate the matching packets in MPLS in UDP with outer header as IPv4 Header or IPv6 header. Do ECMP hashing based on the 5-tuple for the test.
The MPLS in UDP encapsulation is expected to follow rfc7510, but relaxing the requirement for a well-known destination UDP port. gRIBI is expected to be able to set the destination UDP port.
graph LR;
A[ATE PORT1] <--IPv4-IPv6--> B[DUT:PORT1];
C[ATE:PORT2] <--IPv4-IPv6--> D[DUT:PORT2];
E[ATE:PORT3] <--IPv4-IPv6--> F[DUT:PORT3];
G[ATE:PORT4] <--IPv4-IPv6--> H[DUT:PORT4];
- Connect ATE port-1 to DUT port-1, ATE port-2 to DUT port-2, ATE port-3 to DUT port-3, ATE port-4 to DUT port-4
- Assign the ipv4 and ipv6 address to the ports as below DUT-port1 [40.1.1.1/24]<---> ATE-port1 [40.1.1.2/24] DUT-port2 [41.1.1.1/24]<---> ATE-port2 [41.1.1.2/24] DUT-port3 [42.1.1.1/24]<---> ATE-port3 [42.1.1.2/24] DUT-port4 [43.1.1.1/24]<---> ATE-port4 [43.1.1.2/24]
inner_ipv6_dst_A = "2001:aa:bb::1/128" inner_ipv6_dst_B = "2001:aa:bb::2/128" inner_ipv6_default = "::/0"
ipv4_inner_dst_A = "10.5.1.1/32" ipv4_inner_dst_B = "10.5.1.2/32" ipv4_inner_default = "0.0.0.0/0"
outer_ipv6_src = "2001:f:a:1::0" outer_ipv6_dst_A = "2001:f:c:e::1" outer_ipv6_dst_B = "2001:f:c:e::2" outer_ipv6_dst_def = "2001:1:1:1::0" outer_dst_udp_port = "6635" outer_dscp = "26" outer_ip-ttl = "64"
The gRIBI client should send this proto message to the DUT to create AFT entries.
#
# aft entries used for network instance "NI_A"
IPv6Entry {2001:DB8:2::2/128 (NI_A)} -> NHG#100 (DEFAULT VRF)
IPv4Entry {203.0.113.2/32 (NI_A)} -> NHG#100 (DEFAULT VRF) -> {
{NH#101, DEFAULT VRF}
}
# this nexthop specifies a MPLS in UDP encapsulation
NH#101 -> {
encap_-_headers {
encap_header {
index: 1
mpls {
pushed_mpls_label_stack: [101,]
}
}
encap_header {
index: 2
udp_v6 {
src_ip: "outer_ipv6_src"
dst_ip: "outer_ipv6_dst_A"
dst_udp_port: "outer_dst_udp_port"
ip_ttl: "outer_ip-ttl"
dscp: "outer_dscp"
}
}
}
next_hop_group_id: "nhg_A" # new OC path /network-instances/network-instance/afts/next-hop-groups/next-hop-group/state/
network_instance: "DEFAULT"
}- Create 5-tuple traffic profile from ATE port 1 to DUT port 1, DUT port 2, DUT port 3 with the following parameters created. ipv6 source -> "outer_ipv6_src" ipv6 destination -> "outer_ipv6_dst_A" udp src port -> range (10000-30000) udp dst port -> outer_dst_udp_port total no of flows -> 100000
- Configure ECMP hashing configuration on the following parameters src IP, dst IP, src UDP port, dst UDP port
- Using OTG, validate ATE port 2-4 receives the traffic with MPLS-IN-UDP encap
- Validate destination IPs are outer_ipv6_dst_A and outer_ipv6_dst_B
- Validate MPLS label is set
- Validate the ecmp hashing is working fine and load balance is happening across all the 3 ports with tolerance of 1%.
paths:
# afts state paths set via gRIBI
# TODO: need new OC for user defined next-hop-group/state/id, needed for policy-forwarding rules pointing to a NHG
# /network-instances/network-instance/afts/next-hop-groups/next-hop-group/state/next-hop-group-id:
# TODO: new OC path for aft NHG pointing to a different network-instance
# /network-instances/network-instance/afts/next-hop-groups/next-hop-group/state/network-instance:
# Paths added for TE-18.1.1 Match and Encapsulate using gRIBI aft modify
/network-instances/network-instance/afts/next-hop-groups/next-hop-group/state/id:
/network-instances/network-instance/afts/next-hop-groups/next-hop-group/next-hops/next-hop/state/index:
/network-instances/network-instance/afts/next-hops/next-hop/encap-headers/encap-header/state/index:
/network-instances/network-instance/afts/next-hops/next-hop/encap-headers/encap-header/state/type:
/network-instances/network-instance/afts/next-hops/next-hop/encap-headers/encap-header/mpls/state/mpls-label-stack:
/network-instances/network-instance/afts/next-hops/next-hop/encap-headers/encap-header/udp-v4/state/src-ip:
/network-instances/network-instance/afts/next-hops/next-hop/encap-headers/encap-header/udp-v4/state/dst-ip:
/network-instances/network-instance/afts/next-hops/next-hop/encap-headers/encap-header/udp-v4/state/dst-udp-port:
/network-instances/network-instance/afts/next-hops/next-hop/encap-headers/encap-header/udp-v4/state/ip-ttl:
/network-instances/network-instance/afts/next-hops/next-hop/encap-headers/encap-header/udp-v4/state/dscp:
/network-instances/network-instance/afts/next-hops/next-hop/encap-headers/encap-header/udp-v6/state/src-ip:
/network-instances/network-instance/afts/next-hops/next-hop/encap-headers/encap-header/udp-v6/state/dst-ip:
/network-instances/network-instance/afts/next-hops/next-hop/encap-headers/encap-header/udp-v6/state/dst-udp-port:
/network-instances/network-instance/afts/next-hops/next-hop/encap-headers/encap-header/udp-v6/state/ip-ttl:
/network-instances/network-instance/afts/next-hops/next-hop/encap-headers/encap-header/udp-v6/state/dscp:
rpcs:
gribi:
gRIBI.Modify:
afts:next-hops:next-hop:encap-headers:encap-header:udp_v6:
afts:next-hops:next-hop:encap-headers:encap-header:mpls:
gRIBI.Flush:- FFF