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[tests] fix MATN_09_DefaultBRMulticastForwarding.py (#6579)

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The second to the last packet verification statement expects a ping
request sent by Router_1 after BR_2 becomes the PBBR.  However, this
statement wrongly matches a ping request sent by Router_1 before BR_2
becomes the PBBR.  Added a restriction of the echo identifier to make
sure the packet verification statement doesn't match the previous ping
request.
This commit is contained in:
whd
2021-05-06 10:10:36 -07:00
committed by GitHub
parent 217727ec62
commit 9de2134f67
1 changed files with 3 additions and 0 deletions
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tests/scripts/thread-cert/border_router/MATN_09_DefaultBRMulticastForwarding.py
+3
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@@ -149,6 +149,8 @@ class MATN_09_FailureOfPrimaryBBROutboundMulticast(thread_cert.TestCase):
.filter_ping_request() \ .filter_ping_request() \
.must_next() .must_next()
initial_identifier = _pkt.icmpv6.echo.identifier
# 2. BR_1 forwards the multicast ping packet with multicast address, # 2. BR_1 forwards the multicast ping packet with multicast address,
# MA1, to the LAN. # MA1, to the LAN.
pkts.filter_eth_src(vars['BR_1_ETH']) \ pkts.filter_eth_src(vars['BR_1_ETH']) \
@@ -177,6 +179,7 @@ class MATN_09_FailureOfPrimaryBBROutboundMulticast(thread_cert.TestCase):
_pkt = pkts.filter_wpan_src64(vars['Router_1']) \ _pkt = pkts.filter_wpan_src64(vars['Router_1']) \
.filter_AMPLFMA(mpl_seed_id=vars['Router_1_RLOC']) \ .filter_AMPLFMA(mpl_seed_id=vars['Router_1_RLOC']) \
.filter_ping_request() \ .filter_ping_request() \
.filter(lambda p: p.icmpv6.echo.identifier != initial_identifier) \
.must_next() .must_next()
# 6. BR_2 forwards the multicast ping packet with multicast address, # 6. BR_2 forwards the multicast ping packet with multicast address,