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MTU: IP fragmentation added to ip4-rewrite and ip6-rewrite

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Change-Id: Ibae260273f25a319153be37470aed49ff73e957a
Signed-off-by: Ole Troan <ot@cisco.com>
This commit is contained in:
Ole Troan
2018-04-10 16:02:51 +02:00
committed by Florin Coras
parent aa2f59bbd3
commit 313f7e2fea
4 changed files with 59 additions and 19 deletions
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7
test/test_mtu.py
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@ -119,7 +119,6 @@ class TestMTU(VppTestCase):
# n.show2()
self.validate_bytes(str(p[1]), icmp4_reply)
'''
# Now with DF off. Expect fragments.
# First go with 1500 byte packets.
p_payload = UDP(sport=1234, dport=1234) / self.payload(
@ -127,19 +126,18 @@ class TestMTU(VppTestCase):
p4 = p_ether / p_ip4 / p_payload
p4.flags = 0
p4_reply = p_ip4 / p_payload
p4_reply.ttl = 62 # check this
p4_reply.ttl = 62 # check this
p4_reply.flags = 0
p4_reply.id = 256
self.pg_enable_capture()
self.pg0.add_stream(p4*1)
self.pg_start()
rx = self.pg1.get_capture(3)
print('RX', len(rx))
reass_pkt = reassemble(rx)
self.validate(reass_pkt, p4_reply)
'''
# Now what happens with a 9K frame
'''
p_payload = UDP(sport=1234, dport=1234) / self.payload(
current_mtu - 20 - 8)
p4 = p_ether / p_ip4 / p_payload
@ -158,6 +156,7 @@ class TestMTU(VppTestCase):
p4_reply.show2()
self.validate(reass_pkt, p4_reply)
'''
# Reset MTU
self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index,
[current_mtu, 0, 0, 0])