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selftests: bonding: up/down delay w/ slave link flapping
Verify when a bond is configured with {up,down}delay and the link state
of slave members flaps if there are no remaining members up the bond
should immediately select a member to bring up. (from bonding.txt
section 13.1 paragraph 4)
Suggested-by: Liang Li <liali@redhat.com>
Signed-off-by: Jonathan Toppins <jtoppins@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jonathan Toppins
Jakub Kicinski
parent
64a8f8f712
commit
d43eff0b85
@ -5,7 +5,9 @@ TEST_PROGS := \
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bond-arp-interval-causes-panic.sh \
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bond-break-lacpdu-tx.sh \
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bond-lladdr-target.sh \
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dev_addr_lists.sh
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dev_addr_lists.sh \
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mode-1-recovery-updelay.sh \
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mode-2-recovery-updelay.sh
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TEST_FILES := \
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lag_lib.sh \
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@ -1,6 +1,8 @@
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#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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NAMESPACES=""
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# Test that a link aggregation device (bonding, team) removes the hardware
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# addresses that it adds on its underlying devices.
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test_LAG_cleanup()
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@ -59,3 +61,107 @@ test_LAG_cleanup()
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log_test "$driver cleanup mode $mode"
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}
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# Build a generic 2 node net namespace with 2 connections
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# between the namespaces
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#
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# +-----------+ +-----------+
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# | node1 | | node2 |
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# | | | |
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# | | | |
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# | eth0 +-------+ eth0 |
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# | | | |
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# | eth1 +-------+ eth1 |
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# | | | |
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# +-----------+ +-----------+
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lag_setup2x2()
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{
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local state=${1:-down}
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local namespaces="lag_node1 lag_node2"
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# create namespaces
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for n in ${namespaces}; do
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ip netns add ${n}
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done
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# wire up namespaces
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ip link add name lag1 type veth peer name lag1-end
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ip link set dev lag1 netns lag_node1 $state name eth0
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ip link set dev lag1-end netns lag_node2 $state name eth0
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ip link add name lag1 type veth peer name lag1-end
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ip link set dev lag1 netns lag_node1 $state name eth1
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ip link set dev lag1-end netns lag_node2 $state name eth1
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NAMESPACES="${namespaces}"
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}
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# cleanup all lag related namespaces and remove the bonding module
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lag_cleanup()
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{
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for n in ${NAMESPACES}; do
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ip netns delete ${n} >/dev/null 2>&1 || true
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done
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modprobe -r bonding
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}
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SWITCH="lag_node1"
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CLIENT="lag_node2"
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CLIENTIP="172.20.2.1"
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SWITCHIP="172.20.2.2"
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lag_setup_network()
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{
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lag_setup2x2 "down"
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# create switch
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ip netns exec ${SWITCH} ip link add br0 up type bridge
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ip netns exec ${SWITCH} ip link set eth0 master br0 up
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ip netns exec ${SWITCH} ip link set eth1 master br0 up
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ip netns exec ${SWITCH} ip addr add ${SWITCHIP}/24 dev br0
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}
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lag_reset_network()
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{
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ip netns exec ${CLIENT} ip link del bond0
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ip netns exec ${SWITCH} ip link set eth0 up
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ip netns exec ${SWITCH} ip link set eth1 up
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}
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create_bond()
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{
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# create client
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ip netns exec ${CLIENT} ip link set eth0 down
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ip netns exec ${CLIENT} ip link set eth1 down
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ip netns exec ${CLIENT} ip link add bond0 type bond $@
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ip netns exec ${CLIENT} ip link set eth0 master bond0
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ip netns exec ${CLIENT} ip link set eth1 master bond0
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ip netns exec ${CLIENT} ip link set bond0 up
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ip netns exec ${CLIENT} ip addr add ${CLIENTIP}/24 dev bond0
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}
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test_bond_recovery()
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{
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RET=0
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create_bond $@
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# verify connectivity
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ip netns exec ${CLIENT} ping ${SWITCHIP} -c 2 >/dev/null 2>&1
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check_err $? "No connectivity"
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# force the links of the bond down
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ip netns exec ${SWITCH} ip link set eth0 down
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sleep 2
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ip netns exec ${SWITCH} ip link set eth0 up
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ip netns exec ${SWITCH} ip link set eth1 down
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# re-verify connectivity
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ip netns exec ${CLIENT} ping ${SWITCHIP} -c 2 >/dev/null 2>&1
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local rc=$?
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check_err $rc "Bond failed to recover"
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log_test "$1 ($2) bond recovery"
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lag_reset_network
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}
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45
tools/testing/selftests/drivers/net/bonding/mode-1-recovery-updelay.sh
Executable file
45
tools/testing/selftests/drivers/net/bonding/mode-1-recovery-updelay.sh
Executable file
@ -0,0 +1,45 @@
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#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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# Regression Test:
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# When the bond is configured with down/updelay and the link state of
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# slave members flaps if there are no remaining members up the bond
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# should immediately select a member to bring up. (from bonding.txt
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# section 13.1 paragraph 4)
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#
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# +-------------+ +-----------+
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# | client | | switch |
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# | | | |
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# | +--------| link1 |-----+ |
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# | | +-------+ | |
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# | | | | | |
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# | | +-------+ | |
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# | | bond | link2 | Br0 | |
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# +-------------+ +-----------+
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# 172.20.2.1 172.20.2.2
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REQUIRE_MZ=no
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REQUIRE_JQ=no
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NUM_NETIFS=0
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lib_dir=$(dirname "$0")
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source "$lib_dir"/net_forwarding_lib.sh
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source "$lib_dir"/lag_lib.sh
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cleanup()
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{
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lag_cleanup
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}
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trap cleanup 0 1 2
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lag_setup_network
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test_bond_recovery mode 1 miimon 100 updelay 0
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test_bond_recovery mode 1 miimon 100 updelay 200
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test_bond_recovery mode 1 miimon 100 updelay 500
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test_bond_recovery mode 1 miimon 100 updelay 1000
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test_bond_recovery mode 1 miimon 100 updelay 2000
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test_bond_recovery mode 1 miimon 100 updelay 5000
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test_bond_recovery mode 1 miimon 100 updelay 10000
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exit "$EXIT_STATUS"
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45
tools/testing/selftests/drivers/net/bonding/mode-2-recovery-updelay.sh
Executable file
45
tools/testing/selftests/drivers/net/bonding/mode-2-recovery-updelay.sh
Executable file
@ -0,0 +1,45 @@
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#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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# Regression Test:
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# When the bond is configured with down/updelay and the link state of
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# slave members flaps if there are no remaining members up the bond
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# should immediately select a member to bring up. (from bonding.txt
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# section 13.1 paragraph 4)
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#
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# +-------------+ +-----------+
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# | client | | switch |
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# | | | |
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# | +--------| link1 |-----+ |
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# | | +-------+ | |
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# | | | | | |
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# | | +-------+ | |
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# | | bond | link2 | Br0 | |
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# +-------------+ +-----------+
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# 172.20.2.1 172.20.2.2
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REQUIRE_MZ=no
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REQUIRE_JQ=no
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NUM_NETIFS=0
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lib_dir=$(dirname "$0")
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source "$lib_dir"/net_forwarding_lib.sh
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source "$lib_dir"/lag_lib.sh
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cleanup()
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{
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lag_cleanup
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}
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trap cleanup 0 1 2
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lag_setup_network
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test_bond_recovery mode 2 miimon 100 updelay 0
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test_bond_recovery mode 2 miimon 100 updelay 200
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test_bond_recovery mode 2 miimon 100 updelay 500
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test_bond_recovery mode 2 miimon 100 updelay 1000
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test_bond_recovery mode 2 miimon 100 updelay 2000
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test_bond_recovery mode 2 miimon 100 updelay 5000
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test_bond_recovery mode 2 miimon 100 updelay 10000
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exit "$EXIT_STATUS"
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@ -1 +1 @@
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timeout=60
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timeout=120
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