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authorNeale Ranns <neale@graphiant.com>2020-12-21 08:29:34 +0000
committerOle Tr�an <otroan@employees.org>2021-02-15 17:27:48 +0000
commit8f5fef2c78b95de1a636ce27111722b71702212a (patch)
treea0ebd0189969ccae1f0bdd7c1a9c18dd7a066f2e /test/vpp_ip.py
parent54be0cc044f445853fae7b8995c477605250af16 (diff)
ip: Path MTU
Type: feature Support setting the MTU for a peer on an interface. The minimum value of the path and interface MTU is used at forwarding time. the path MTU is specified for a given peer, by address and table-ID. In the forwarding plane the MTU is enfored either: 1 - if the peer is attached, then the MTU is set on the peer's adjacency 2 - if the peer is not attached, it is remote, then a DPO is added to the peer's FIB entry to perform the necessary fragmentation. Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: I8b9ea6a07868b50e97e2561f18d9335407dea7ae
Diffstat (limited to 'test/vpp_ip.py')
-rw-r--r--test/vpp_ip.py46
1 files changed, 46 insertions, 0 deletions
diff --git a/test/vpp_ip.py b/test/vpp_ip.py
index e2367a3ce28..81305b2dd9b 100644
--- a/test/vpp_ip.py
+++ b/test/vpp_ip.py
@@ -181,3 +181,49 @@ class VppIpPuntRedirect(VppObject):
if self.get_vpp_config():
return True
return False
+
+
+class VppIpPathMtu(VppObject):
+ def __init__(self, test, nh, pmtu, table_id=0):
+ self._test = test
+ self.nh = nh
+ self.pmtu = pmtu
+ self.table_id = table_id
+
+ def add_vpp_config(self):
+ self._test.vapi.ip_path_mtu_update(pmtu={'nh': self.nh,
+ 'table_id': self.table_id,
+ 'path_mtu': self.pmtu})
+ self._test.registry.register(self, self._test.logger)
+ return self
+
+ def modify(self, pmtu):
+ self.pmtu = pmtu
+ self._test.vapi.ip_path_mtu_update(pmtu={'nh': self.nh,
+ 'table_id': self.table_id,
+ 'path_mtu': self.pmtu})
+ return self
+
+ def remove_vpp_config(self):
+ self._test.vapi.ip_path_mtu_update(pmtu={'nh': self.nh,
+ 'table_id': self.table_id,
+ 'path_mtu': 0})
+
+ def query_vpp_config(self):
+ ds = list(self._test.vapi.vpp.details_iter(
+ self._test.vapi.ip_path_mtu_get))
+
+ for d in ds:
+ if self.nh == str(d.pmtu.nh) \
+ and self.table_id == d.pmtu.table_id \
+ and self.pmtu == d.pmtu.path_mtu:
+ return True
+ return False
+
+ def object_id(self):
+ return ("ip-path-mtu-%d-%s-%d" % (self.table_id,
+ self.nh,
+ self.pmtu))
+
+ def __str__(self):
+ return self.object_id()