diff options
| author |   Ole Troan <ot@cisco.com> | 2018-06-07 10:17:57 +0200 |
|---|---|---|
| committer |   Damjan Marion <dmarion@me.com> | 2018-06-11 10:25:59 +0000 |
| commit | d723161e038d00e59766aa67a6a0dcc350227e4b (patch) | |
| tree | 24f5a1d87ebdc0012f28d42aa80a9f5d760073bf /test/test_mtu.py | |
| parent | f4fd0d4217ab6c41fe6b093871bd40ac130e6486 (diff) | |
MTU: Software interface / Per-protocol MTU support
This patch separates setting of hardware interfaec and software
interface MTU. Software MTU is L2 payload MTU (i.e. not including L2
header). Per-protocol MTU for IPv4, IPv6 and MPLS can also be set.
Currently only IP4, IP6 are enabled in adjacency / rewrite code.
Documentation in src/vnet/MTU.md
Change-Id: Iee2fd6f0bbc8210748dd8e073ab9fab87d323690
Signed-off-by: Ole Troan <ot@cisco.com>
Diffstat (limited to 'test/test_mtu.py')
| -rw-r--r-- | test/test_mtu.py | 26 |
1 files changed, 8 insertions, 18 deletions
diff --git a/test/test_mtu.py b/test/test_mtu.py index cef0ec0d8d5..1327c4bfd8e 100644 --- a/test/test_mtu.py +++ b/test/test_mtu.py @@ -76,23 +76,17 @@ class TestMTU(VppTestCase): rv = self.vapi.sw_interface_dump() for i in rv: if i.sw_if_index == sw_if_index: - return i.link_mtu + return i.mtu[0] return 0 def test_ip4_mtu(self): """ IP4 MTU test """ - # - # TODO: Link MTU is 216 bytes 'off'. Fix when L3 MTU patches committed - # - mtu_offset = 216 p_ether = Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) p_ip4 = IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4, flags='DF') - # TODO: Re-enable when MTU fixes are committed current_mtu = self.get_mtu(self.pg1.sw_if_index) - current_mtu -= mtu_offset p_payload = UDP(sport=1234, dport=1234) / self.payload( current_mtu - 20 - 8) @@ -105,8 +99,8 @@ class TestMTU(VppTestCase): self.validate(p[1], p4_reply) # MTU - self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, 576 + mtu_offset) - self.assertEqual(576, self.get_mtu(self.pg1.sw_if_index) - mtu_offset) + self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [576, 0, 0, 0]) + self.assertEqual(576, self.get_mtu(self.pg1.sw_if_index)) # Should fail. Too large MTU p_icmp4 = ICMP(type='dest-unreach', code='fragmentation-needed', @@ -166,17 +160,12 @@ class TestMTU(VppTestCase): ''' # Reset MTU self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, - current_mtu + mtu_offset) + [current_mtu, 0, 0, 0]) def test_ip6_mtu(self): """ IP6 MTU test """ - # - # TODO: Link MTU is 216 bytes 'off'. Fix when L3 MTU patches committed - # - mtu_offset = 216 current_mtu = self.get_mtu(self.pg1.sw_if_index) - current_mtu -= mtu_offset p_ether = Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) p_ip6 = IPv6(src=self.pg0.remote_ip6, dst=self.pg1.remote_ip6) @@ -192,8 +181,8 @@ class TestMTU(VppTestCase): self.validate(p[1], p6_reply) # MTU (only checked on encap) - self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, 1280 + mtu_offset) - self.assertEqual(1280, self.get_mtu(self.pg1.sw_if_index) - mtu_offset) + self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [1280, 0, 0, 0]) + self.assertEqual(1280, self.get_mtu(self.pg1.sw_if_index)) # Should fail. Too large MTU p_icmp6 = ICMPv6PacketTooBig(mtu=1280, cksum=0x4c7a) @@ -211,7 +200,8 @@ class TestMTU(VppTestCase): self.validate_bytes(str(p[1]), icmp6_reply) # Reset MTU - self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, current_mtu) + self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, + [current_mtu, 0, 0, 0]) if __name__ == '__main__': |