def do_task(ctl, hosts, ifaces, aliases):
m1, sw, m2 = hosts
m1_if1, sw_if1, sw_if2, sw_if3, m2_if1, m2_if2, m2_if3, m3_if1 = ifaces
ecmp_sw_ifaces = [sw_if2, sw_if3]
ecmp_m_ifaces = [m2_if1, m2_if2]
m2.config("/proc/sys/net/ipv4/ip_forward", "1")
m2.config("/proc/sys/net/ipv6/conf/all/forwarding", "1")
ecmp_common.create_topology(m1_if1,
sw_if1,
ecmp_sw_ifaces,
ecmp_m_ifaces,
m2_if3,
m3_if1,
num_nexthops=MAX_NEXTHOPS)
tl = TestLib(ctl, aliases)
tl.wait_for_if(ifaces)
tl.ping_simple(m1_if1, m3_if1)
tl.netperf_udp(m1_if1, m3_if1)
ecmp_common.test_traffic(tl, m1_if1, m3_if1, sw_if1, ecmp_sw_ifaces)
routes_filter = "to match %s" % m3_if1.get_ip()
dc_routes, nh_routes = sw.get_routes(routes_filter=routes_filter)
if len(nh_routes) != 1:
tl.custom(sw, "route", "could not find the ecmp route")
for nh in nh_routes[0]["nexthops"]:
if "offload" not in nh["flags"]:
tl.custom(sw, "route", "ecmp route is not offloaded")
def do_task(ctl, hosts, ifaces, aliases):
m1, sw, m2 = hosts
m1_if1, sw_if1, sw_if2, sw_if3, m2_if1, m2_if2, m2_if3, m3_if1 = ifaces
ecmp_sw_ifaces = [sw_if2, sw_if3]
ecmp_m_ifaces = [m2_if1, m2_if2]
m2.config("/proc/sys/net/ipv4/ip_forward", "1")
m2.config("/proc/sys/net/ipv6/conf/all/forwarding", "1")
ecmp_common.create_topology(m1_if1, sw_if1, ecmp_sw_ifaces, ecmp_m_ifaces,
m2_if3, m3_if1)
sleep(30)
tl = TestLib(ctl, aliases)
tl.ping_simple(m1_if1, m3_if1)
tl.netperf_udp(m1_if1, m3_if1)
ecmp_common.test_traffic(tl, m1_if1, m3_if1, sw_if1, ecmp_sw_ifaces)
def do_task(ctl, hosts, ifaces, aliases):
m1, sw, m2 = hosts
m1_if1, sw_if1, sw_if2, sw_if3, m2_if1, m2_if2, m2_if3, m3_if1 = ifaces
ecmp_sw_ifaces = [sw_if2, sw_if3]
ecmp_m_ifaces = [m2_if1, m2_if2]
m2.config("/proc/sys/net/ipv4/ip_forward", "1")
m2.config("/proc/sys/net/ipv6/conf/all/forwarding", "1")
ecmp_common.create_topology(m1_if1, sw_if1, ecmp_sw_ifaces, ecmp_m_ifaces,
m2_if3, m3_if1)
tl = TestLib(ctl, aliases)
tl.wait_for_if(ifaces)
tl.ping_simple(m1_if1, m3_if1)
tl.netperf_udp(m1_if1, m3_if1)
ecmp_common.test_traffic(tl, m1_if1, m3_if1, sw_if1, ecmp_sw_ifaces)
def do_task(ctl, hosts, ifaces, aliases):
m1, sw, m2 = hosts
m1_if1, sw_if1, sw_if2, sw_if3, sw_if4, sw_if5, m2_if1, m2_if2, m2_if3, \
m2_if4, m2_if5, m3_if1 = ifaces
ecmp_sw_ifaces = [sw_if2, sw_if3, sw_if4, sw_if5]
ecmp_m_ifaces = [m2_if1, m2_if2, m2_if3, m2_if4]
m2.config("/proc/sys/net/ipv4/ip_forward", "1")
ecmp_common.create_topology(m1_if1, sw_if1, ecmp_sw_ifaces, ecmp_m_ifaces,
m2_if5, m3_if1)
sleep(30)
tl = TestLib(ctl, aliases)
tl.ping_simple(m1_if1, m3_if1)
tl.netperf_udp(m1_if1, m3_if1)
ecmp_common.test_traffic(tl, m1_if1, m3_if1, sw_if1, ecmp_sw_ifaces)
def do_task(ctl, hosts, ifaces, aliases):
m1, sw, m2 = hosts
m1_if1, sw_if1, sw_if2, sw_if3, m2_if1, m2_if2, m2_if3, m3_if1 = ifaces
ecmp_sw_ifaces = [sw_if2, sw_if3]
ecmp_m_ifaces = [m2_if1, m2_if2]
m2.config("/proc/sys/net/ipv4/ip_forward", "1")
ecmp_common.create_topology(m1_if1, sw_if1, ecmp_sw_ifaces, ecmp_m_ifaces,
m2_if3, m3_if1)
sleep(30)
tl = TestLib(ctl, aliases)
tl.ping_simple(m1_if1, m3_if1)
tl.netperf_udp(m1_if1, m3_if1)
msg = "Running with all nexthops active"
ecmp_common.test_traffic(tl,
m1_if1,
m3_if1,
sw_if1,
ecmp_sw_ifaces,
expected=1.,
errmsg=msg)
# run once with ignore_routes_with_linkdown and expect no traffic loss
for iface in ecmp_sw_ifaces:
sw.config(
"/proc/sys/net/ipv4/conf/%s/ignore_routes_with_linkdown" %
iface.get_devname(), "1")
curr_ecmp_m_ifaces = copy.copy(ecmp_m_ifaces)
curr_ecmp_sw_ifaces = copy.copy(ecmp_sw_ifaces)
while len(curr_ecmp_m_ifaces) > 1:
sw_iface, m_iface = curr_ecmp_sw_ifaces.pop(), curr_ecmp_m_ifaces.pop()
m_iface.set_link_down()
msg = "Running with %d failed nexthops" % (len(ecmp_sw_ifaces) -
len(curr_ecmp_sw_ifaces))
ecmp_common.test_traffic(tl,
m1_if1,
m3_if1,
sw_if1,
curr_ecmp_sw_ifaces,
expected=1.0,
errmsg=msg)
for iface in ecmp_m_ifaces:
iface.set_link_up()
sleep(30)
# run once without ignore_routes_with_linkdown and expect traffic loss
for iface in ecmp_sw_ifaces:
sw.config(
"/proc/sys/net/ipv4/conf/%s/ignore_routes_with_linkdown" %
iface.get_devname(), "0")
curr_ecmp_m_ifaces = copy.copy(ecmp_m_ifaces)
curr_ecmp_sw_ifaces = copy.copy(ecmp_sw_ifaces)
while len(curr_ecmp_m_ifaces) > 1:
sw_iface, m_iface = curr_ecmp_sw_ifaces.pop(), curr_ecmp_m_ifaces.pop()
m_iface.set_link_down()
msg = "Running with %d failed nexthops" % (len(ecmp_sw_ifaces) -
len(curr_ecmp_sw_ifaces))
expected = float(len(curr_ecmp_m_ifaces)) / len(ecmp_m_ifaces)
ecmp_common.test_traffic(tl,
m1_if1,
m3_if1,
sw_if1,
curr_ecmp_sw_ifaces,
expected=expected,
errmsg=msg)