diff options
| author |   Ole Troan <ot@cisco.com> | 2018-05-23 11:21:42 +0200 |
|---|---|---|
| committer |   Florin Coras <florin.coras@gmail.com> | 2018-05-23 16:40:39 +0000 |
| commit | da6e11b47d47c764b11304524de559dda0d0d223 (patch) | |
| tree | e219f5491c6253bcdae04969d6a2321183f00bef /test/test_mtu.py | |
| parent | 8a9c8f1412cb1258340b18a8eb622a835ef3c37b (diff) | |
VPP-1283: IPv6 PMTU missing MTU value in ICMP6 message.
Fix GRE/IPv6 setting of ip->payload_length (which has never worked).
Change-Id: Ie68f1cc7bbb70489d6ec97356132c783f2345e1e
Signed-off-by: Ole Troan <ot@cisco.com>
Diffstat (limited to 'test/test_mtu.py')
| -rw-r--r-- | test/test_mtu.py | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/test/test_mtu.py b/test/test_mtu.py index abf0c94b268..cef0ec0d8d5 100644 --- a/test/test_mtu.py +++ b/test/test_mtu.py @@ -165,16 +165,22 @@ class TestMTU(VppTestCase): self.validate(reass_pkt, p4_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 + mtu_offset) - @unittest.skip("Enable when IPv6 fragmentation is added") 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) - current_mtu = self.get_mtu(self.pg1.sw_if_index) p_payload = UDP(sport=1234, dport=1234) / self.payload( current_mtu - 40 - 8) @@ -186,8 +192,8 @@ 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) - self.assertEqual(1280, self.get_mtu(self.pg1.sw_if_index)) + 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) # Should fail. Too large MTU p_icmp6 = ICMPv6PacketTooBig(mtu=1280, cksum=0x4c7a) |