selftests: forwarding: Test multipath hashing on inner IP pkts for GRE tunnel
Add selftest scripts for multipath hashing on inner IP pkts when there
is a single GRE tunnel but there are multiple underlay routes to reach
the other end of the tunnel.
Four cases are covered in these scripts:
- IPv4 inner, IPv4 outer
- IPv6 inner, IPv4 outer
- IPv4 inner, IPv6 outer
- IPv6 inner, IPv6 outer
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Stephen Suryaputra <ssuryaextr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stephen Suryaputra
David S. Miller
Родитель
d8f74f0975
Коммит
2800f24854
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@ -0,0 +1,305 @@
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#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Test traffic distribution when there are multiple routes between an IPv4
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# GRE tunnel. The tunnel carries IPv4 traffic between multiple hosts.
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# Multiple routes are in the underlay network. With the default multipath
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# policy, SW2 will only look at the outer IP addresses, hence only a single
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# route would be used.
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#
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# +-------------------------+
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# | H1 |
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# | $h1 + |
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# | 192.0.3.{2-62}/24 | |
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# +-------------------|-----+
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# |
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# +-------------------|------------------------+
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# | SW1 | |
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# | $ol1 + |
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# | 192.0.3.1/24 |
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# | |
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# | + g1 (gre) |
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# | loc=192.0.2.65 |
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# | rem=192.0.2.66 --. |
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# | tos=inherit | |
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# | v |
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# | + $ul1 |
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# | | 192.0.2.129/28 |
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# +---------------------|----------------------+
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# |
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# +---------------------|----------------------+
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# | SW2 | |
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# | $ul21 + |
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# | 192.0.2.130/28 |
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# | | |
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# ! ________________|_____ |
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# | / \ |
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# | | | |
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# | + $ul22.111 (vlan) + $ul22.222 (vlan) |
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# | | 192.0.2.145/28 | 192.0.2.161/28 |
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# | | | |
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# +--|----------------------|------------------+
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# | |
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# +--|----------------------|------------------+
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# | | | |
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# | + $ul32.111 (vlan) + $ul32.222 (vlan) |
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# | | 192.0.2.146/28 | 192.0.2.162/28 |
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# | | | |
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# | \______________________/ |
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# | | |
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# | | |
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# | $ul31 + |
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# | 192.0.2.177/28 | SW3 |
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# +---------------------|----------------------+
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# |
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# +---------------------|----------------------+
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# | + $ul4 |
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# | ^ 192.0.2.178/28 |
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# | | |
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# | + g2 (gre) | |
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# | loc=192.0.2.66 | |
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# | rem=192.0.2.65 --' |
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# | tos=inherit |
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# | |
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# | $ol4 + |
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# | 192.0.4.1/24 | SW4 |
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# +--------------------|-----------------------+
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# |
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# +--------------------|---------+
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# | | |
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# | $h2 + |
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# | 192.0.4.{2-62}/24 H2 |
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# +------------------------------+
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ALL_TESTS="
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ping_ipv4
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multipath_ipv4
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"
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NUM_NETIFS=10
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source lib.sh
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h1_create()
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{
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simple_if_init $h1 192.0.3.2/24
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ip route add vrf v$h1 192.0.4.0/24 via 192.0.3.1
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}
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h1_destroy()
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{
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ip route del vrf v$h1 192.0.4.0/24 via 192.0.3.1
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simple_if_fini $h1 192.0.3.2/24
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}
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sw1_create()
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{
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simple_if_init $ol1 192.0.3.1/24
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__simple_if_init $ul1 v$ol1 192.0.2.129/28
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tunnel_create g1 gre 192.0.2.65 192.0.2.66 tos inherit dev v$ol1
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__simple_if_init g1 v$ol1 192.0.2.65/32
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ip route add vrf v$ol1 192.0.2.66/32 via 192.0.2.130
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ip route add vrf v$ol1 192.0.4.0/24 nexthop dev g1
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}
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sw1_destroy()
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{
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ip route del vrf v$ol1 192.0.4.0/24
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ip route del vrf v$ol1 192.0.2.66/32
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__simple_if_fini g1 192.0.2.65/32
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tunnel_destroy g1
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__simple_if_fini $ul1 192.0.2.129/28
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simple_if_fini $ol1 192.0.3.1/24
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}
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sw2_create()
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{
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simple_if_init $ul21 192.0.2.130/28
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__simple_if_init $ul22 v$ul21
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vlan_create $ul22 111 v$ul21 192.0.2.145/28
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vlan_create $ul22 222 v$ul21 192.0.2.161/28
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ip route add vrf v$ul21 192.0.2.65/32 via 192.0.2.129
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ip route add vrf v$ul21 192.0.2.66/32 \
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nexthop via 192.0.2.146 \
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nexthop via 192.0.2.162
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}
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sw2_destroy()
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{
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ip route del vrf v$ul21 192.0.2.66/32
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ip route del vrf v$ul21 192.0.2.65/32
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vlan_destroy $ul22 222
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vlan_destroy $ul22 111
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__simple_if_fini $ul22
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simple_if_fini $ul21 192.0.2.130/28
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}
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sw3_create()
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{
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simple_if_init $ul31 192.0.2.177/28
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__simple_if_init $ul32 v$ul31
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vlan_create $ul32 111 v$ul31 192.0.2.146/28
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vlan_create $ul32 222 v$ul31 192.0.2.162/28
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ip route add vrf v$ul31 192.0.2.66/32 via 192.0.2.178
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ip route add vrf v$ul31 192.0.2.65/32 \
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nexthop via 192.0.2.145 \
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nexthop via 192.0.2.161
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tc qdisc add dev $ul32 clsact
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tc filter add dev $ul32 ingress pref 111 prot 802.1Q \
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flower vlan_id 111 action pass
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tc filter add dev $ul32 ingress pref 222 prot 802.1Q \
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flower vlan_id 222 action pass
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}
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sw3_destroy()
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{
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tc qdisc del dev $ul32 clsact
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ip route del vrf v$ul31 192.0.2.65/32
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ip route del vrf v$ul31 192.0.2.66/32
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vlan_destroy $ul32 222
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vlan_destroy $ul32 111
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__simple_if_fini $ul32
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simple_if_fini $ul31 192.0.2.177/28
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}
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sw4_create()
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{
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simple_if_init $ol4 192.0.4.1/24
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__simple_if_init $ul4 v$ol4 192.0.2.178/28
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tunnel_create g2 gre 192.0.2.66 192.0.2.65 tos inherit dev v$ol4
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__simple_if_init g2 v$ol4 192.0.2.66/32
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ip route add vrf v$ol4 192.0.2.65/32 via 192.0.2.177
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ip route add vrf v$ol4 192.0.3.0/24 nexthop dev g2
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}
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sw4_destroy()
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{
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ip route del vrf v$ol4 192.0.3.0/24
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ip route del vrf v$ol4 192.0.2.65/32
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__simple_if_fini g2 192.0.2.66/32
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tunnel_destroy g2
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__simple_if_fini $ul4 192.0.2.178/28
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simple_if_fini $ol4 192.0.4.1/24
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}
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h2_create()
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{
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simple_if_init $h2 192.0.4.2/24
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ip route add vrf v$h2 192.0.3.0/24 via 192.0.4.1
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}
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h2_destroy()
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{
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ip route del vrf v$h2 192.0.3.0/24 via 192.0.4.1
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simple_if_fini $h2 192.0.4.2/24
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}
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setup_prepare()
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{
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h1=${NETIFS[p1]}
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ol1=${NETIFS[p2]}
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ul1=${NETIFS[p3]}
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ul21=${NETIFS[p4]}
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ul22=${NETIFS[p5]}
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ul32=${NETIFS[p6]}
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ul31=${NETIFS[p7]}
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ul4=${NETIFS[p8]}
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ol4=${NETIFS[p9]}
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h2=${NETIFS[p10]}
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vrf_prepare
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h1_create
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sw1_create
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sw2_create
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sw3_create
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sw4_create
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h2_create
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forwarding_enable
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}
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cleanup()
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{
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pre_cleanup
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forwarding_restore
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h2_destroy
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sw4_destroy
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sw3_destroy
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sw2_destroy
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sw1_destroy
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h1_destroy
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vrf_cleanup
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}
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multipath4_test()
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{
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local what=$1; shift
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local weight1=$1; shift
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local weight2=$1; shift
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sysctl_set net.ipv4.fib_multipath_hash_policy 2
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ip route replace vrf v$ul21 192.0.2.66/32 \
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nexthop via 192.0.2.146 weight $weight1 \
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nexthop via 192.0.2.162 weight $weight2
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local t0_111=$(tc_rule_stats_get $ul32 111 ingress)
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local t0_222=$(tc_rule_stats_get $ul32 222 ingress)
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ip vrf exec v$h1 \
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$MZ $h1 -q -p 64 -A "192.0.3.2-192.0.3.62" -B "192.0.4.2-192.0.4.62" \
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-d 1msec -c 50 -t udp "sp=1024,dp=1024"
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sleep 1
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local t1_111=$(tc_rule_stats_get $ul32 111 ingress)
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local t1_222=$(tc_rule_stats_get $ul32 222 ingress)
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local d111=$((t1_111 - t0_111))
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local d222=$((t1_222 - t0_222))
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multipath_eval "$what" $weight1 $weight2 $d111 $d222
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ip route replace vrf v$ul21 192.0.2.66/32 \
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nexthop via 192.0.2.146 \
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nexthop via 192.0.2.162
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sysctl_restore net.ipv4.fib_multipath_hash_policy
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}
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ping_ipv4()
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{
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ping_test $h1 192.0.4.2
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}
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multipath_ipv4()
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{
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log_info "Running IPv4 over GRE over IPv4 multipath tests"
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multipath4_test "ECMP" 1 1
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multipath4_test "Weighted MP 2:1" 2 1
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multipath4_test "Weighted MP 11:45" 11 45
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}
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trap cleanup EXIT
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setup_prepare
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setup_wait
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tests_run
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exit $EXIT_STATUS
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@ -0,0 +1,306 @@
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#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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|
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# Test traffic distribution when there are multiple routes between an IPv4
|
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# GRE tunnel. The tunnel carries IPv6 traffic between multiple hosts.
|
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# Multiple routes are in the underlay network. With the default multipath
|
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# policy, SW2 will only look at the outer IP addresses, hence only a single
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# route would be used.
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#
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# +-------------------------+
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# | H1 |
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# | $h1 + |
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# | 2001:db8:1::2/64 | |
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# +-------------------|-----+
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# |
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# +-------------------|------------------------+
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# | SW1 | |
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# | $ol1 + |
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# | 2001:db8:1::1/64 |
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# | |
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# | + g1 (gre) |
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# | loc=192.0.2.65 |
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# | rem=192.0.2.66 --. |
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# | tos=inherit | |
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# | v |
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# | + $ul1 |
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# | | 192.0.2.129/28 |
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# +---------------------|----------------------+
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# |
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# +---------------------|----------------------+
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# | SW2 | |
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# | $ul21 + |
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# | 192.0.2.130/28 |
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# | | |
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# ! ________________|_____ |
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# | / \ |
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# | | | |
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# | + $ul22.111 (vlan) + $ul22.222 (vlan) |
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# | | 192.0.2.145/28 | 192.0.2.161/28 |
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# | | | |
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# +--|----------------------|------------------+
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# | |
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# +--|----------------------|------------------+
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# | | | |
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# | + $ul32.111 (vlan) + $ul32.222 (vlan) |
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# | | 192.0.2.146/28 | 192.0.2.162/28 |
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# | | | |
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# | \______________________/ |
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# | | |
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# | | |
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# | $ul31 + |
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# | 192.0.2.177/28 | SW3 |
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# +---------------------|----------------------+
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# |
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# +---------------------|----------------------+
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# | + $ul4 |
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# | ^ 192.0.2.178/28 |
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# | | |
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# | + g2 (gre) | |
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# | loc=192.0.2.66 | |
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# | rem=192.0.2.65 --' |
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# | tos=inherit |
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# | |
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# | $ol4 + |
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# | 2001:db8:2::1/64 | SW4 |
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# +--------------------|-----------------------+
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# |
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# +--------------------|---------+
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# | | |
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# | $h2 + |
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# | 2001:db8:2::2/64 H2 |
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# +------------------------------+
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ALL_TESTS="
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ping_ipv6
|
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multipath_ipv6
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"
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|
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NUM_NETIFS=10
|
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source lib.sh
|
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|
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h1_create()
|
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{
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simple_if_init $h1 2001:db8:1::2/64
|
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ip -6 route add vrf v$h1 2001:db8:2::/64 via 2001:db8:1::1
|
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}
|
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|
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h1_destroy()
|
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{
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ip -6 route del vrf v$h1 2001:db8:2::/64 via 2001:db8:1::1
|
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simple_if_fini $h1 2001:db8:1::2/64
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}
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|
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sw1_create()
|
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{
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simple_if_init $ol1 2001:db8:1::1/64
|
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__simple_if_init $ul1 v$ol1 192.0.2.129/28
|
||||
|
||||
tunnel_create g1 gre 192.0.2.65 192.0.2.66 tos inherit dev v$ol1
|
||||
__simple_if_init g1 v$ol1 192.0.2.65/32
|
||||
ip route add vrf v$ol1 192.0.2.66/32 via 192.0.2.130
|
||||
|
||||
ip -6 route add vrf v$ol1 2001:db8:2::/64 dev g1
|
||||
}
|
||||
|
||||
sw1_destroy()
|
||||
{
|
||||
ip -6 route del vrf v$ol1 2001:db8:2::/64
|
||||
|
||||
ip route del vrf v$ol1 192.0.2.66/32
|
||||
__simple_if_fini g1 192.0.2.65/32
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||||
tunnel_destroy g1
|
||||
|
||||
__simple_if_fini $ul1 192.0.2.129/28
|
||||
simple_if_fini $ol1 2001:db8:1::1/64
|
||||
}
|
||||
|
||||
sw2_create()
|
||||
{
|
||||
simple_if_init $ul21 192.0.2.130/28
|
||||
__simple_if_init $ul22 v$ul21
|
||||
vlan_create $ul22 111 v$ul21 192.0.2.145/28
|
||||
vlan_create $ul22 222 v$ul21 192.0.2.161/28
|
||||
|
||||
ip route add vrf v$ul21 192.0.2.65/32 via 192.0.2.129
|
||||
ip route add vrf v$ul21 192.0.2.66/32 \
|
||||
nexthop via 192.0.2.146 \
|
||||
nexthop via 192.0.2.162
|
||||
}
|
||||
|
||||
sw2_destroy()
|
||||
{
|
||||
ip route del vrf v$ul21 192.0.2.66/32
|
||||
ip route del vrf v$ul21 192.0.2.65/32
|
||||
|
||||
vlan_destroy $ul22 222
|
||||
vlan_destroy $ul22 111
|
||||
__simple_if_fini $ul22
|
||||
simple_if_fini $ul21 192.0.2.130/28
|
||||
}
|
||||
|
||||
sw3_create()
|
||||
{
|
||||
simple_if_init $ul31 192.0.2.177/28
|
||||
__simple_if_init $ul32 v$ul31
|
||||
vlan_create $ul32 111 v$ul31 192.0.2.146/28
|
||||
vlan_create $ul32 222 v$ul31 192.0.2.162/28
|
||||
|
||||
ip route add vrf v$ul31 192.0.2.66/32 via 192.0.2.178
|
||||
ip route add vrf v$ul31 192.0.2.65/32 \
|
||||
nexthop via 192.0.2.145 \
|
||||
nexthop via 192.0.2.161
|
||||
|
||||
tc qdisc add dev $ul32 clsact
|
||||
tc filter add dev $ul32 ingress pref 111 prot 802.1Q \
|
||||
flower vlan_id 111 action pass
|
||||
tc filter add dev $ul32 ingress pref 222 prot 802.1Q \
|
||||
flower vlan_id 222 action pass
|
||||
}
|
||||
|
||||
sw3_destroy()
|
||||
{
|
||||
tc qdisc del dev $ul32 clsact
|
||||
|
||||
ip route del vrf v$ul31 192.0.2.65/32
|
||||
ip route del vrf v$ul31 192.0.2.66/32
|
||||
|
||||
vlan_destroy $ul32 222
|
||||
vlan_destroy $ul32 111
|
||||
__simple_if_fini $ul32
|
||||
simple_if_fini $ul31 192.0.2.177/28
|
||||
}
|
||||
|
||||
sw4_create()
|
||||
{
|
||||
simple_if_init $ol4 2001:db8:2::1/64
|
||||
__simple_if_init $ul4 v$ol4 192.0.2.178/28
|
||||
|
||||
tunnel_create g2 gre 192.0.2.66 192.0.2.65 tos inherit dev v$ol4
|
||||
__simple_if_init g2 v$ol4 192.0.2.66/32
|
||||
ip route add vrf v$ol4 192.0.2.65/32 via 192.0.2.177
|
||||
|
||||
ip -6 route add vrf v$ol4 2001:db8:1::/64 dev g2
|
||||
}
|
||||
|
||||
sw4_destroy()
|
||||
{
|
||||
ip -6 route del vrf v$ol4 2001:db8:1::/64
|
||||
|
||||
ip route del vrf v$ol4 192.0.2.65/32
|
||||
__simple_if_fini g2 192.0.2.66/32
|
||||
tunnel_destroy g2
|
||||
|
||||
__simple_if_fini $ul4 192.0.2.178/28
|
||||
simple_if_fini $ol4 2001:db8:2::1/64
|
||||
}
|
||||
|
||||
h2_create()
|
||||
{
|
||||
simple_if_init $h2 2001:db8:2::2/64
|
||||
ip -6 route add vrf v$h2 2001:db8:1::/64 via 2001:db8:2::1
|
||||
}
|
||||
|
||||
h2_destroy()
|
||||
{
|
||||
ip -6 route del vrf v$h2 2001:db8:1::/64 via 2001:db8:2::1
|
||||
simple_if_fini $h2 2001:db8:2::2/64
|
||||
}
|
||||
|
||||
setup_prepare()
|
||||
{
|
||||
h1=${NETIFS[p1]}
|
||||
|
||||
ol1=${NETIFS[p2]}
|
||||
ul1=${NETIFS[p3]}
|
||||
|
||||
ul21=${NETIFS[p4]}
|
||||
ul22=${NETIFS[p5]}
|
||||
|
||||
ul32=${NETIFS[p6]}
|
||||
ul31=${NETIFS[p7]}
|
||||
|
||||
ul4=${NETIFS[p8]}
|
||||
ol4=${NETIFS[p9]}
|
||||
|
||||
h2=${NETIFS[p10]}
|
||||
|
||||
vrf_prepare
|
||||
h1_create
|
||||
sw1_create
|
||||
sw2_create
|
||||
sw3_create
|
||||
sw4_create
|
||||
h2_create
|
||||
|
||||
forwarding_enable
|
||||
}
|
||||
|
||||
cleanup()
|
||||
{
|
||||
pre_cleanup
|
||||
|
||||
forwarding_restore
|
||||
|
||||
h2_destroy
|
||||
sw4_destroy
|
||||
sw3_destroy
|
||||
sw2_destroy
|
||||
sw1_destroy
|
||||
h1_destroy
|
||||
vrf_cleanup
|
||||
}
|
||||
|
||||
multipath6_test()
|
||||
{
|
||||
local what=$1; shift
|
||||
local weight1=$1; shift
|
||||
local weight2=$1; shift
|
||||
|
||||
sysctl_set net.ipv4.fib_multipath_hash_policy 2
|
||||
ip route replace vrf v$ul21 192.0.2.66/32 \
|
||||
nexthop via 192.0.2.146 weight $weight1 \
|
||||
nexthop via 192.0.2.162 weight $weight2
|
||||
|
||||
local t0_111=$(tc_rule_stats_get $ul32 111 ingress)
|
||||
local t0_222=$(tc_rule_stats_get $ul32 222 ingress)
|
||||
|
||||
ip vrf exec v$h1 \
|
||||
$MZ $h1 -6 -q -p 64 -A "2001:db8:1::2-2001:db8:1::1e" \
|
||||
-B "2001:db8:2::2-2001:db8:2::1e" \
|
||||
-d 1msec -c 50 -t udp "sp=1024,dp=1024"
|
||||
sleep 1
|
||||
|
||||
local t1_111=$(tc_rule_stats_get $ul32 111 ingress)
|
||||
local t1_222=$(tc_rule_stats_get $ul32 222 ingress)
|
||||
|
||||
local d111=$((t1_111 - t0_111))
|
||||
local d222=$((t1_222 - t0_222))
|
||||
multipath_eval "$what" $weight1 $weight2 $d111 $d222
|
||||
|
||||
ip route replace vrf v$ul21 192.0.2.66/32 \
|
||||
nexthop via 192.0.2.146 \
|
||||
nexthop via 192.0.2.162
|
||||
sysctl_restore net.ipv4.fib_multipath_hash_policy
|
||||
}
|
||||
|
||||
ping_ipv6()
|
||||
{
|
||||
ping_test $h1 2001:db8:2::2
|
||||
}
|
||||
|
||||
multipath_ipv6()
|
||||
{
|
||||
log_info "Running IPv6 over GRE over IPv4 multipath tests"
|
||||
multipath6_test "ECMP" 1 1
|
||||
multipath6_test "Weighted MP 2:1" 2 1
|
||||
multipath6_test "Weighted MP 11:45" 11 45
|
||||
}
|
||||
|
||||
trap cleanup EXIT
|
||||
|
||||
setup_prepare
|
||||
setup_wait
|
||||
tests_run
|
||||
|
||||
exit $EXIT_STATUS
|
||||
|
|
@ -0,0 +1,304 @@
|
|||
#!/bin/bash
|
||||
# SPDX-License-Identifier: GPL-2.0
|
||||
|
||||
# Test traffic distribution when there are multiple routes between an IPv6
|
||||
# GRE tunnel. The tunnel carries IPv4 traffic between multiple hosts.
|
||||
# Multiple routes are in the underlay network. With the default multipath
|
||||
# policy, SW2 will only look at the outer IP addresses, hence only a single
|
||||
# route would be used.
|
||||
#
|
||||
# +-------------------------+
|
||||
# | H1 |
|
||||
# | $h1 + |
|
||||
# | 192.0.3.{2-62}/24 | |
|
||||
# +-------------------|-----+
|
||||
# |
|
||||
# +-------------------|-------------------------+
|
||||
# | SW1 | |
|
||||
# | $ol1 + |
|
||||
# | 192.0.3.1/24 |
|
||||
# | |
|
||||
# | + g1 (gre) |
|
||||
# | loc=2001:db8:40::1 |
|
||||
# | rem=2001:db8:40::2 --. |
|
||||
# | tos=inherit | |
|
||||
# | v |
|
||||
# | + $ul1 |
|
||||
# | | 2001:db8:80::1/64 |
|
||||
# +-------------------------|-------------------+
|
||||
# |
|
||||
# +-------------------------|-------------------+
|
||||
# | SW2 | |
|
||||
# | $ul21 + |
|
||||
# | 2001:db8:80::2/64 |
|
||||
# | | |
|
||||
# ! ________________|_____ |
|
||||
# | / \ |
|
||||
# | | | |
|
||||
# | + $ul22.111 (vlan) + $ul22.222 (vlan) |
|
||||
# | | 2001:db8:81::1/64 | 2001:db8:82::1/64 |
|
||||
# | | | |
|
||||
# +--|----------------------|-------------------+
|
||||
# | |
|
||||
# +--|----------------------|-------------------+
|
||||
# | | | |
|
||||
# | + $ul32.111 (vlan) + $ul32.222 (vlan) |
|
||||
# | | 2001:db8:81::2/64 | 2001:db8:82::2/64 |
|
||||
# | | | |
|
||||
# | \______________________/ |
|
||||
# | | |
|
||||
# | | |
|
||||
# | $ul31 + |
|
||||
# | 2001:db8:83::2/64 | SW3 |
|
||||
# +-------------------------|-------------------+
|
||||
# |
|
||||
# +-------------------------|-------------------+
|
||||
# | + $ul4 |
|
||||
# | ^ 2001:db8:83::1/64 |
|
||||
# | + g2 (gre) | |
|
||||
# | loc=2001:db8:40::2 | |
|
||||
# | rem=2001:db8:40::1 --' |
|
||||
# | tos=inherit |
|
||||
# | |
|
||||
# | $ol4 + |
|
||||
# | 192.0.4.1/24 | SW4 |
|
||||
# +--------------------|------------------------+
|
||||
# |
|
||||
# +--------------------|---------+
|
||||
# | | |
|
||||
# | $h2 + |
|
||||
# | 192.0.4.{2-62}/24 H2 |
|
||||
# +------------------------------+
|
||||
|
||||
ALL_TESTS="
|
||||
ping_ipv4
|
||||
multipath_ipv4
|
||||
"
|
||||
|
||||
NUM_NETIFS=10
|
||||
source lib.sh
|
||||
|
||||
h1_create()
|
||||
{
|
||||
simple_if_init $h1 192.0.3.2/24
|
||||
ip route add vrf v$h1 192.0.4.0/24 via 192.0.3.1
|
||||
}
|
||||
|
||||
h1_destroy()
|
||||
{
|
||||
ip route del vrf v$h1 192.0.4.0/24 via 192.0.3.1
|
||||
simple_if_fini $h1 192.0.3.2/24
|
||||
}
|
||||
|
||||
sw1_create()
|
||||
{
|
||||
simple_if_init $ol1 192.0.3.1/24
|
||||
__simple_if_init $ul1 v$ol1 2001:db8:80::1/64
|
||||
|
||||
tunnel_create g1 ip6gre 2001:db8:40::1 2001:db8:40::2 tos inherit dev v$ol1
|
||||
__simple_if_init g1 v$ol1 2001:db8:40::1/128
|
||||
ip -6 route add vrf v$ol1 2001:db8:40::2/128 via 2001:db8:80::2
|
||||
|
||||
ip route add vrf v$ol1 192.0.4.0/24 nexthop dev g1
|
||||
}
|
||||
|
||||
sw1_destroy()
|
||||
{
|
||||
ip route del vrf v$ol1 192.0.4.0/24
|
||||
|
||||
ip -6 route del vrf v$ol1 2001:db8:40::2/128
|
||||
__simple_if_fini g1 2001:db8:40::1/128
|
||||
tunnel_destroy g1
|
||||
|
||||
__simple_if_fini $ul1 2001:db8:80::1/64
|
||||
simple_if_fini $ol1 192.0.3.1/24
|
||||
}
|
||||
|
||||
sw2_create()
|
||||
{
|
||||
simple_if_init $ul21 2001:db8:80::2/64
|
||||
__simple_if_init $ul22 v$ul21
|
||||
vlan_create $ul22 111 v$ul21 2001:db8:81::1/64
|
||||
vlan_create $ul22 222 v$ul21 2001:db8:82::1/64
|
||||
|
||||
ip -6 route add vrf v$ul21 2001:db8:40::1/128 via 2001:db8:80::1
|
||||
ip -6 route add vrf v$ul21 2001:db8:40::2/128 \
|
||||
nexthop via 2001:db8:81::2 \
|
||||
nexthop via 2001:db8:82::2
|
||||
}
|
||||
|
||||
sw2_destroy()
|
||||
{
|
||||
ip -6 route del vrf v$ul21 2001:db8:40::2/128
|
||||
ip -6 route del vrf v$ul21 2001:db8:40::1/128
|
||||
|
||||
vlan_destroy $ul22 222
|
||||
vlan_destroy $ul22 111
|
||||
__simple_if_fini $ul22
|
||||
simple_if_fini $ul21 2001:db8:80::2/64
|
||||
}
|
||||
|
||||
sw3_create()
|
||||
{
|
||||
simple_if_init $ul31 2001:db8:83::2/64
|
||||
__simple_if_init $ul32 v$ul31
|
||||
vlan_create $ul32 111 v$ul31 2001:db8:81::2/64
|
||||
vlan_create $ul32 222 v$ul31 2001:db8:82::2/64
|
||||
|
||||
ip -6 route add vrf v$ul31 2001:db8:40::2/128 via 2001:db8:83::1
|
||||
ip -6 route add vrf v$ul31 2001:db8:40::1/128 \
|
||||
nexthop via 2001:db8:81::1 \
|
||||
nexthop via 2001:db8:82::1
|
||||
|
||||
tc qdisc add dev $ul32 clsact
|
||||
tc filter add dev $ul32 ingress pref 111 prot 802.1Q \
|
||||
flower vlan_id 111 action pass
|
||||
tc filter add dev $ul32 ingress pref 222 prot 802.1Q \
|
||||
flower vlan_id 222 action pass
|
||||
}
|
||||
|
||||
sw3_destroy()
|
||||
{
|
||||
tc qdisc del dev $ul32 clsact
|
||||
|
||||
ip -6 route del vrf v$ul31 2001:db8:40::1/128
|
||||
ip -6 route del vrf v$ul31 2001:db8:40::2/128
|
||||
|
||||
vlan_destroy $ul32 222
|
||||
vlan_destroy $ul32 111
|
||||
__simple_if_fini $ul32
|
||||
simple_if_fini $ul31 2001:Db8:83::2/64
|
||||
}
|
||||
|
||||
sw4_create()
|
||||
{
|
||||
simple_if_init $ol4 192.0.4.1/24
|
||||
__simple_if_init $ul4 v$ol4 2001:db8:83::1/64
|
||||
|
||||
tunnel_create g2 ip6gre 2001:db8:40::2 2001:db8:40::1 tos inherit dev v$ol4
|
||||
__simple_if_init g2 v$ol4 2001:db8:40::2/128
|
||||
ip -6 route add vrf v$ol4 2001:db8:40::1/128 via 2001:db8:83::2
|
||||
|
||||
ip route add vrf v$ol4 192.0.3.0/24 nexthop dev g2
|
||||
}
|
||||
|
||||
sw4_destroy()
|
||||
{
|
||||
ip route del vrf v$ol4 192.0.3.0/24
|
||||
|
||||
ip -6 route del vrf v$ol4 2001:db8:40::1/128
|
||||
__simple_if_fini g2 2001:db8:40::2/128
|
||||
tunnel_destroy g2
|
||||
|
||||
__simple_if_fini $ul4 2001:db8:83::1/64
|
||||
simple_if_fini $ol4 192.0.4.1/24
|
||||
}
|
||||
|
||||
h2_create()
|
||||
{
|
||||
simple_if_init $h2 192.0.4.2/24
|
||||
ip route add vrf v$h2 192.0.3.0/24 via 192.0.4.1
|
||||
}
|
||||
|
||||
h2_destroy()
|
||||
{
|
||||
ip route del vrf v$h2 192.0.3.0/24 via 192.0.4.1
|
||||
simple_if_fini $h2 192.0.4.2/24
|
||||
}
|
||||
|
||||
setup_prepare()
|
||||
{
|
||||
h1=${NETIFS[p1]}
|
||||
|
||||
ol1=${NETIFS[p2]}
|
||||
ul1=${NETIFS[p3]}
|
||||
|
||||
ul21=${NETIFS[p4]}
|
||||
ul22=${NETIFS[p5]}
|
||||
|
||||
ul32=${NETIFS[p6]}
|
||||
ul31=${NETIFS[p7]}
|
||||
|
||||
ul4=${NETIFS[p8]}
|
||||
ol4=${NETIFS[p9]}
|
||||
|
||||
h2=${NETIFS[p10]}
|
||||
|
||||
vrf_prepare
|
||||
h1_create
|
||||
sw1_create
|
||||
sw2_create
|
||||
sw3_create
|
||||
sw4_create
|
||||
h2_create
|
||||
|
||||
forwarding_enable
|
||||
}
|
||||
|
||||
cleanup()
|
||||
{
|
||||
pre_cleanup
|
||||
|
||||
forwarding_restore
|
||||
|
||||
h2_destroy
|
||||
sw4_destroy
|
||||
sw3_destroy
|
||||
sw2_destroy
|
||||
sw1_destroy
|
||||
h1_destroy
|
||||
vrf_cleanup
|
||||
}
|
||||
|
||||
multipath4_test()
|
||||
{
|
||||
local what=$1; shift
|
||||
local weight1=$1; shift
|
||||
local weight2=$1; shift
|
||||
|
||||
sysctl_set net.ipv6.fib_multipath_hash_policy 2
|
||||
ip route replace vrf v$ul21 2001:db8:40::2/128 \
|
||||
nexthop via 2001:db8:81::2 weight $weight1 \
|
||||
nexthop via 2001:db8:82::2 weight $weight2
|
||||
|
||||
local t0_111=$(tc_rule_stats_get $ul32 111 ingress)
|
||||
local t0_222=$(tc_rule_stats_get $ul32 222 ingress)
|
||||
|
||||
ip vrf exec v$h1 \
|
||||
$MZ $h1 -q -p 64 -A "192.0.3.2-192.0.3.62" -B "192.0.4.2-192.0.4.62" \
|
||||
-d 1msec -c 50 -t udp "sp=1024,dp=1024"
|
||||
sleep 1
|
||||
|
||||
local t1_111=$(tc_rule_stats_get $ul32 111 ingress)
|
||||
local t1_222=$(tc_rule_stats_get $ul32 222 ingress)
|
||||
|
||||
local d111=$((t1_111 - t0_111))
|
||||
local d222=$((t1_222 - t0_222))
|
||||
multipath_eval "$what" $weight1 $weight2 $d111 $d222
|
||||
|
||||
ip route replace vrf v$ul21 2001:db8:40::2/128 \
|
||||
nexthop via 2001:db8:81::2 \
|
||||
nexthop via 2001:db8:82::2
|
||||
sysctl_restore net.ipv6.fib_multipath_hash_policy
|
||||
}
|
||||
|
||||
ping_ipv4()
|
||||
{
|
||||
ping_test $h1 192.0.4.2
|
||||
}
|
||||
|
||||
multipath_ipv4()
|
||||
{
|
||||
log_info "Running IPv4 over GRE over IPv6 multipath tests"
|
||||
multipath4_test "ECMP" 1 1
|
||||
multipath4_test "Weighted MP 2:1" 2 1
|
||||
multipath4_test "Weighted MP 11:45" 11 45
|
||||
}
|
||||
|
||||
trap cleanup EXIT
|
||||
|
||||
setup_prepare
|
||||
setup_wait
|
||||
tests_run
|
||||
|
||||
exit $EXIT_STATUS
|
||||
|
|
@ -0,0 +1,305 @@
|
|||
#!/bin/bash
|
||||
# SPDX-License-Identifier: GPL-2.0
|
||||
|
||||
# Test traffic distribution when there are multiple routes between an IPv6
|
||||
# GRE tunnel. The tunnel carries IPv6 traffic between multiple hosts.
|
||||
# Multiple routes are in the underlay network. With the default multipath
|
||||
# policy, SW2 will only look at the outer IP addresses, hence only a single
|
||||
# route would be used.
|
||||
#
|
||||
# +-------------------------+
|
||||
# | H1 |
|
||||
# | $h1 + |
|
||||
# | 2001:db8:1::2/64 | |
|
||||
# +-------------------|-----+
|
||||
# |
|
||||
# +-------------------|-------------------------+
|
||||
# | SW1 | |
|
||||
# | $ol1 + |
|
||||
# | 2001:db8:1::1/64 |
|
||||
# | |
|
||||
# | + g1 (gre) |
|
||||
# | loc=2001:db8:40::1 |
|
||||
# | rem=2001:db8:40::2 --. |
|
||||
# | tos=inherit | |
|
||||
# | v |
|
||||
# | + $ul1 |
|
||||
# | | 2001:db8:80::1/64 |
|
||||
# +-------------------------|-------------------+
|
||||
# |
|
||||
# +-------------------------|-------------------+
|
||||
# | SW2 | |
|
||||
# | $ul21 + |
|
||||
# | 2001:db8:80::2/64 |
|
||||
# | | |
|
||||
# ! ________________|_____ |
|
||||
# | / \ |
|
||||
# | | | |
|
||||
# | + $ul22.111 (vlan) + $ul22.222 (vlan) |
|
||||
# | | 2001:db8:81::1/64 | 2001:db8:82::1/64 |
|
||||
# | | | |
|
||||
# +--|----------------------|-------------------+
|
||||
# | |
|
||||
# +--|----------------------|-------------------+
|
||||
# | | | |
|
||||
# | + $ul32.111 (vlan) + $ul32.222 (vlan) |
|
||||
# | | 2001:db8:81::2/64 | 2001:db8:82::2/64 |
|
||||
# | | | |
|
||||
# | \______________________/ |
|
||||
# | | |
|
||||
# | | |
|
||||
# | $ul31 + |
|
||||
# | 2001:db8:83::2/64 | SW3 |
|
||||
# +-------------------------|-------------------+
|
||||
# |
|
||||
# +-------------------------|-------------------+
|
||||
# | + $ul4 |
|
||||
# | ^ 2001:db8:83::1/64 |
|
||||
# | + g2 (gre) | |
|
||||
# | loc=2001:db8:40::2 | |
|
||||
# | rem=2001:db8:40::1 --' |
|
||||
# | tos=inherit |
|
||||
# | |
|
||||
# | $ol4 + |
|
||||
# | 2001:db8:2::1/64 | SW4 |
|
||||
# +--------------------|------------------------+
|
||||
# |
|
||||
# +--------------------|---------+
|
||||
# | | |
|
||||
# | $h2 + |
|
||||
# | 2001:db8:2::2/64 H2 |
|
||||
# +------------------------------+
|
||||
|
||||
ALL_TESTS="
|
||||
ping_ipv6
|
||||
multipath_ipv6
|
||||
"
|
||||
|
||||
NUM_NETIFS=10
|
||||
source lib.sh
|
||||
|
||||
h1_create()
|
||||
{
|
||||
simple_if_init $h1 2001:db8:1::2/64
|
||||
ip -6 route add vrf v$h1 2001:db8:2::/64 via 2001:db8:1::1
|
||||
}
|
||||
|
||||
h1_destroy()
|
||||
{
|
||||
ip -6 route del vrf v$h1 2001:db8:2::/64 via 2001:db8:1::1
|
||||
simple_if_fini $h1 2001:db8:1::2/64
|
||||
}
|
||||
|
||||
sw1_create()
|
||||
{
|
||||
simple_if_init $ol1 2001:db8:1::1/64
|
||||
__simple_if_init $ul1 v$ol1 2001:db8:80::1/64
|
||||
|
||||
tunnel_create g1 ip6gre 2001:db8:40::1 2001:db8:40::2 tos inherit dev v$ol1
|
||||
__simple_if_init g1 v$ol1 2001:db8:40::1/128
|
||||
ip -6 route add vrf v$ol1 2001:db8:40::2/128 via 2001:db8:80::2
|
||||
|
||||
ip -6 route add vrf v$ol1 2001:db8:2::/64 dev g1
|
||||
}
|
||||
|
||||
sw1_destroy()
|
||||
{
|
||||
ip -6 route del vrf v$ol1 2001:db8:2::/64
|
||||
|
||||
ip -6 route del vrf v$ol1 2001:db8:40::2/128
|
||||
__simple_if_fini g1 2001:db8:40::1/128
|
||||
tunnel_destroy g1
|
||||
|
||||
__simple_if_fini $ul1 2001:db8:80::1/64
|
||||
simple_if_fini $ol1 2001:db8:1::1/64
|
||||
}
|
||||
|
||||
sw2_create()
|
||||
{
|
||||
simple_if_init $ul21 2001:db8:80::2/64
|
||||
__simple_if_init $ul22 v$ul21
|
||||
vlan_create $ul22 111 v$ul21 2001:db8:81::1/64
|
||||
vlan_create $ul22 222 v$ul21 2001:db8:82::1/64
|
||||
|
||||
ip -6 route add vrf v$ul21 2001:db8:40::1/128 via 2001:db8:80::1
|
||||
ip -6 route add vrf v$ul21 2001:db8:40::2/128 \
|
||||
nexthop via 2001:db8:81::2 \
|
||||
nexthop via 2001:db8:82::2
|
||||
}
|
||||
|
||||
sw2_destroy()
|
||||
{
|
||||
ip -6 route del vrf v$ul21 2001:db8:40::2/128
|
||||
ip -6 route del vrf v$ul21 2001:db8:40::1/128
|
||||
|
||||
vlan_destroy $ul22 222
|
||||
vlan_destroy $ul22 111
|
||||
__simple_if_fini $ul22
|
||||
simple_if_fini $ul21 2001:db8:80::2/64
|
||||
}
|
||||
|
||||
sw3_create()
|
||||
{
|
||||
simple_if_init $ul31 2001:db8:83::2/64
|
||||
__simple_if_init $ul32 v$ul31
|
||||
vlan_create $ul32 111 v$ul31 2001:db8:81::2/64
|
||||
vlan_create $ul32 222 v$ul31 2001:db8:82::2/64
|
||||
|
||||
ip -6 route add vrf v$ul31 2001:db8:40::2/128 via 2001:db8:83::1
|
||||
ip -6 route add vrf v$ul31 2001:db8:40::1/128 \
|
||||
nexthop via 2001:db8:81::1 \
|
||||
nexthop via 2001:db8:82::1
|
||||
|
||||
tc qdisc add dev $ul32 clsact
|
||||
tc filter add dev $ul32 ingress pref 111 prot 802.1Q \
|
||||
flower vlan_id 111 action pass
|
||||
tc filter add dev $ul32 ingress pref 222 prot 802.1Q \
|
||||
flower vlan_id 222 action pass
|
||||
}
|
||||
|
||||
sw3_destroy()
|
||||
{
|
||||
tc qdisc del dev $ul32 clsact
|
||||
|
||||
ip -6 route del vrf v$ul31 2001:db8:40::1/128
|
||||
ip -6 route del vrf v$ul31 2001:db8:40::2/128
|
||||
|
||||
vlan_destroy $ul32 222
|
||||
vlan_destroy $ul32 111
|
||||
__simple_if_fini $ul32
|
||||
simple_if_fini $ul31 2001:Db8:83::2/64
|
||||
}
|
||||
|
||||
sw4_create()
|
||||
{
|
||||
simple_if_init $ol4 2001:db8:2::1/64
|
||||
__simple_if_init $ul4 v$ol4 2001:db8:83::1/64
|
||||
|
||||
tunnel_create g2 ip6gre 2001:db8:40::2 2001:db8:40::1 tos inherit dev v$ol4
|
||||
__simple_if_init g2 v$ol4 2001:db8:40::2/128
|
||||
ip -6 route add vrf v$ol4 2001:db8:40::1/128 via 2001:db8:83::2
|
||||
|
||||
ip -6 route add vrf v$ol4 2001:db8:1::/64 dev g2
|
||||
}
|
||||
|
||||
sw4_destroy()
|
||||
{
|
||||
ip -6 route del vrf v$ol4 2001:db8:1::/64
|
||||
|
||||
ip -6 route del vrf v$ol4 2001:db8:40::1/128
|
||||
__simple_if_fini g2 2001:db8:40::2/128
|
||||
tunnel_destroy g2
|
||||
|
||||
__simple_if_fini $ul4 2001:db8:83::1/64
|
||||
simple_if_fini $ol4 2001:db8:2::1/64
|
||||
}
|
||||
|
||||
h2_create()
|
||||
{
|
||||
simple_if_init $h2 2001:db8:2::2/64
|
||||
ip -6 route add vrf v$h2 2001:db8:1::/64 via 2001:db8:2::1
|
||||
}
|
||||
|
||||
h2_destroy()
|
||||
{
|
||||
ip -6 route del vrf v$h2 2001:db8:1::/64 via 2001:db8:2::1
|
||||
simple_if_fini $h2 2001:db8:2::2/64
|
||||
}
|
||||
|
||||
setup_prepare()
|
||||
{
|
||||
h1=${NETIFS[p1]}
|
||||
|
||||
ol1=${NETIFS[p2]}
|
||||
ul1=${NETIFS[p3]}
|
||||
|
||||
ul21=${NETIFS[p4]}
|
||||
ul22=${NETIFS[p5]}
|
||||
|
||||
ul32=${NETIFS[p6]}
|
||||
ul31=${NETIFS[p7]}
|
||||
|
||||
ul4=${NETIFS[p8]}
|
||||
ol4=${NETIFS[p9]}
|
||||
|
||||
h2=${NETIFS[p10]}
|
||||
|
||||
vrf_prepare
|
||||
h1_create
|
||||
sw1_create
|
||||
sw2_create
|
||||
sw3_create
|
||||
sw4_create
|
||||
h2_create
|
||||
|
||||
forwarding_enable
|
||||
}
|
||||
|
||||
cleanup()
|
||||
{
|
||||
pre_cleanup
|
||||
|
||||
forwarding_restore
|
||||
|
||||
h2_destroy
|
||||
sw4_destroy
|
||||
sw3_destroy
|
||||
sw2_destroy
|
||||
sw1_destroy
|
||||
h1_destroy
|
||||
vrf_cleanup
|
||||
}
|
||||
|
||||
multipath6_test()
|
||||
{
|
||||
local what=$1; shift
|
||||
local weight1=$1; shift
|
||||
local weight2=$1; shift
|
||||
|
||||
sysctl_set net.ipv6.fib_multipath_hash_policy 2
|
||||
ip route replace vrf v$ul21 2001:db8:40::2/128 \
|
||||
nexthop via 2001:db8:81::2 weight $weight1 \
|
||||
nexthop via 2001:db8:82::2 weight $weight2
|
||||
|
||||
local t0_111=$(tc_rule_stats_get $ul32 111 ingress)
|
||||
local t0_222=$(tc_rule_stats_get $ul32 222 ingress)
|
||||
|
||||
ip vrf exec v$h1 \
|
||||
$MZ $h1 -6 -q -p 64 -A "2001:db8:1::2-2001:db8:1::1e" \
|
||||
-B "2001:db8:2::2-2001:db8:2::1e" \
|
||||
-d 1msec -c 50 -t udp "sp=1024,dp=1024"
|
||||
sleep 1
|
||||
|
||||
local t1_111=$(tc_rule_stats_get $ul32 111 ingress)
|
||||
local t1_222=$(tc_rule_stats_get $ul32 222 ingress)
|
||||
|
||||
local d111=$((t1_111 - t0_111))
|
||||
local d222=$((t1_222 - t0_222))
|
||||
multipath_eval "$what" $weight1 $weight2 $d111 $d222
|
||||
|
||||
ip route replace vrf v$ul21 2001:db8:40::2/128 \
|
||||
nexthop via 2001:db8:81::2 \
|
||||
nexthop via 2001:db8:82::2
|
||||
sysctl_restore net.ipv6.fib_multipath_hash_policy
|
||||
}
|
||||
|
||||
ping_ipv6()
|
||||
{
|
||||
ping_test $h1 2001:db8:2::2
|
||||
}
|
||||
|
||||
multipath_ipv6()
|
||||
{
|
||||
log_info "Running IPv6 over GRE over IPv6 multipath tests"
|
||||
multipath6_test "ECMP" 1 1
|
||||
multipath6_test "Weighted MP 2:1" 2 1
|
||||
multipath6_test "Weighted MP 11:45" 11 45
|
||||
}
|
||||
|
||||
trap cleanup EXIT
|
||||
|
||||
setup_prepare
|
||||
setup_wait
|
||||
tests_run
|
||||
|
||||
exit $EXIT_STATUS
|
||||
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