ligang/vpp
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

fib: MPLS EOS chains built for attached prefixes should link to a lookup DPO

Browse Source 
Type: fix

Presently a local label associated with an attached or connected prefix will link to the glean. This is a problem since it will never use the adj-fibs that are installed for that attached prefix. Instead link the local label to a lookup in the table in which the attached link is bound.

Signed-off-by: Neale Ranns <neale@graphiant.com>
Change-Id: Iad49fb6168b9ba47216a9a52bd262363b49c3c43
This commit is contained in:
Neale Ranns
2021-12-20 18:18:42 +00:00
committed by Damjan Marion
parent 3aa3d6d3f3
commit 53962fbccb
10 changed files with 84 additions and 66 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
test/test_mpls.py
View File

@ -1563,6 +1563,33 @@ class TestMPLS(VppTestCase):
VppMplsLabel(32),
VppMplsLabel(99)])
def test_attached(self):
""" Attach Routes with Local Label """
#
# test that if a local label is associated with an attached/connected
# prefix, that we can reach hosts in the prefix.
#
binding = VppMplsIpBind(self, 44,
self.pg0._local_ip4_subnet,
self.pg0.local_ip4_prefix_len)
binding.add_vpp_config()
tx = (Ether(src=self.pg1.remote_mac,
dst=self.pg1.local_mac) /
MPLS(label=44, ttl=64) /
IP(src=self.pg0.remote_ip4, dst=self.pg0.remote_ip4) /
UDP(sport=1234, dport=1234) /
Raw(b'\xa5' * 100))
rxs = self.send_and_expect(self.pg0, [tx], self.pg0)
for rx in rxs:
# if there's an ARP then the label is linked to the glean
# which is wrong.
self.assertFalse(rx.haslayer(ARP))
# it should be unicasted to the host
self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
self.assertEqual(rx[IP].dst, self.pg0.remote_ip4)
class TestMPLSDisabled(VppTestCase):
""" MPLS disabled """