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      1 #!/bin/sh
      2 # Copyright (c) 2014-2017 Oracle and/or its affiliates.
      3 #
      4 # This program is free software; you can redistribute it and/or
      5 # modify it under the terms of the GNU General Public License as
      6 # published by the Free Software Foundation; either version 2 of
      7 # the License, or (at your option) any later version.
      8 #
      9 # This program is distributed in the hope that it would be useful,
     10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
     11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     12 # GNU General Public License for more details.
     13 #
     14 # You should have received a copy of the GNU General Public License
     15 # along with this program. If not, see <http://www.gnu.org/licenses/>.
     16 #
     17 # Author: Alexey Kodanev <alexey.kodanev (at] oracle.com>
     18 #
     19 # Test-case 1: It requires remote host. Test will setup IPv4 and IPv6 virtual
     20 #              sub-nets between two hosts, then will compare TCP performance
     21 #              with and without VxLAN using ping or netstress test.
     22 #
     23 # Test-case 2: The same as above but must fail, because VXLAN allows
     24 #              to communicate only within the same VXLAN segment.
     25 
     26 TCID=vxlan03
     27 TST_TOTAL=4
     28 TST_NEEDS_TMPDIR=1
     29 
     30 virt_type="vxlan"
     31 start_id=16700000
     32 
     33 # Destination address, can be unicast or multicast address
     34 vxlan_dst_addr="uni"
     35 
     36 . test_net.sh
     37 . virt_lib.sh
     38 
     39 # In average cases (with small packets less then 150 bytes) VxLAN slower
     40 # by 10-30%. If hosts are too close to each other, e.g. connected to the same
     41 # switch, VxLAN can be much slower when comparing to the performance without
     42 # any encapsulation.
     43 VIRT_PERF_THRESHOLD=${VIRT_PERF_THRESHOLD:-160}
     44 [ "$VIRT_PERF_THRESHOLD" -lt 160 ] && VIRT_PERF_THRESHOLD=160
     45 
     46 TST_CLEANUP="virt_cleanup"
     47 
     48 if [ -z $ip_local -o -z $ip_remote ]; then
     49 	tst_brkm TBROK "you must specify IP address"
     50 fi
     51 
     52 opts=" ,gbp"
     53 
     54 for n in $(seq 1 2); do
     55 	p="$(echo $opts | cut -d',' -f$n)"
     56 
     57 	virt_check_cmd virt_add ltp_v0 id 0 $p || continue
     58 
     59 	tst_resm TINFO "the same VNI must work"
     60 	# VNI is 24 bits long, so max value, which is not reserved, is 0xFFFFFE
     61 	vxlan_setup_subnet_$vxlan_dst_addr "id 0xFFFFFE $p" "id 0xFFFFFE $p"
     62 	virt_netperf_msg_sizes
     63 	virt_cleanup_rmt
     64 
     65 	tst_resm TINFO "different VNI shall not work together"
     66 	vxlan_setup_subnet_$vxlan_dst_addr "id 0xFFFFFE $p" "id 0xFFFFFD $p"
     67 	virt_minimize_timeout
     68 	virt_compare_netperf "fail"
     69 	virt_cleanup_rmt
     70 done
     71 
     72 tst_exit
     73