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(cherry picked from commit 115e99630a317cab62c6f99e0461f6ce2c1edaf3)
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Found an odd behavior on Linux and the VyOS CLI implementation. If adding VXLAN
interfaces using iproute2 the MTU differs depending on the creation syntax:
ip -4 link add vxlan100 type vxlan dstport 4789 external df unset tos inherit \
ttl 16 nolearning vnifilter local 172.16.33.201
ip -4 link add vxlan200 type vxlan id 200 dstport 4789 local 172.16.33.201 dev eth0
ip -6 link add vxlan300 type vxlan id 300 dstport 4789 local 2001:db8:1::1 dev eth0
132: vxlan300: <BROADCAST,MULTICAST> mtu 1430 qdisc noop state DOWN group default qlen 1000
link/ether 4e:fb:e3:f5:d9:59 brd ff:ff:ff:ff:ff:ff
133: vxlan200: <BROADCAST,MULTICAST> mtu 1450 qdisc noop state DOWN group default qlen 1000
link/ether 0e:4e:f4:76:59:3f brd ff:ff:ff:ff:ff:ff
134: vxlan100: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether ba:b6:b7:0c:b1:37 brd ff:ff:ff:ff:ff:ff
VyOS always sets a default MTU of 1450 bytes which is correct for IPv4 p2p links
or multicast, but invalid for IPv6 p2p. Also this will break EVPN deployments
as ethernet bridges with MTU < 1500 bytes are less fun.
Increase default MTU to 1500 bytes. Migrate old configurations to use 1450
bytes if not specified otherwise on the CLI.
(cherry picked from commit 4a163b016333e58fee9d6ec6b53a09e0160b3213)
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In a service provider network a service provider typically supports multiple
bridge domains with overlapping vlans. One bridge domain per customer. Vlans in
each bridge domain are mapped to globally unique VXLAN VNI ranges assigned to
each customer.
Without the ability of VNI filtering, we can not provide VXLAN tunnels
with multiple tenants all requiring e.g. VLAN 10.
To Test:
set interfaces vxlan vxlan987 parameters external
set interfaces vxlan vxlan987 source-interface eth0
set interfaces vxlan vxlan987 parameters vni-filter
set interfaces vxlan vxlan987 vlan-to-vni 50 vni 10050
set interfaces vxlan vxlan987 vlan-to-vni 51 vni 10051
set interfaces vxlan vxlan987 vlan-to-vni 52 vni 10052
set interfaces vxlan vxlan987 vlan-to-vni 53 vni 10053
set interfaces vxlan vxlan987 vlan-to-vni 54 vni 10054
set interfaces vxlan vxlan987 vlan-to-vni 60 vni 10060
set interfaces vxlan vxlan987 vlan-to-vni 69 vni 10069
set interfaces bridge br0 member interface vxlan987
Add new op-mode command: show bridge vni
Interface VNI
----------- -----------
vxlan987 10050-10054
vxlan987 10060
vxlan987 10069
(cherry picked from commit 35f6033d21053fa420e837f157cd9377a4ccd26a)
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After commit cc7ba8824 ('vxlan: T5699: migrate "external" CLI know to
"parameters external"') We also need to adjust the testcase for ARP/ND
suppression.
(cherry picked from commit cb2f72dbd10a11f99913cc60044460f18381f770)
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In order to minimize the flooding of ARP and ND messages in the VXLAN network,
EVPN includes provisions [1] that allow participating VTEPs to suppress such
messages in case they know the MAC-IP binding and can reply on behalf of the
remote host. In Linux, the above is implemented in the bridge driver using a
per-port option called "neigh_suppress" that was added in kernel version 4.15.
[1] https://www.rfc-editor.org/rfc/rfc7432#section-10
(cherry picked from commit ec9a95502daa88b9632af12524e7cefebf86bab6)
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As we have a bunch of options under "paramteres" already and "external" is
clearly one of them it should be migrated under that node as well.
(cherry picked from commit cc7ba8824a5e9ec818f0bbe7fb85e1713a591527)
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FRR supports a new way of configuring VLAN-to-VNI mappings for EVPN-VXLAN, when
working with the Linux kernel. In this new way, the mapping of a VLAN to a VNI
is configured against a container VXLAN interface which is referred to as a
'Single VXLAN device (SVD)'.
Multiple VLAN to VNI mappings can be configured against the same SVD. This
allows for a significant scaling of the number of VNIs since a separate VXLAN
interface is no longer required for each VNI.
Sample configuration of SVD with VLAN to VNI mappings is shown below.
set interfaces bridge br0 member interface vxlan0
set interfaces vxlan vxlan0 external
set interfaces vxlan vxlan0 source-interface 'dum0'
set interfaces vxlan vxlan0 vlan-to-vni 10 vni '10010'
set interfaces vxlan vxlan0 vlan-to-vni 11 vni '10011'
set interfaces vxlan vxlan0 vlan-to-vni 30 vni '10030'
set interfaces vxlan vxlan0 vlan-to-vni 31 vni '10031'
(cherry picked from commit 7f6624f5a6f8bd1749b54103ea5ec9f010adf778)
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* T5195: move run, cmd, call, rc_cmd helper to vyos.utils.process
* T5195: use read_file and write_file implementation from vyos.utils.file
Changed code automatically using:
find . -type f -not -path '*/\.*' -exec sed -i 's/^from vyos.util import read_file$/from vyos.utils.file import read_file/g' {} +
find . -type f -not -path '*/\.*' -exec sed -i 's/^from vyos.util import write_file$/from vyos.utils.file import write_file/g' {} +
* T5195: move chmod* helpers to vyos.utils.permission
* T5195: use colon_separated_to_dict from vyos.utils.dict
* T5195: move is_systemd_service_* to vyos.utils.process
* T5195: fix boot issues with missing imports
* T5195: move dict_search_* helpers to vyos.utils.dict
* T5195: move network helpers to vyos.utils.network
* T5195: move commit_* helpers to vyos.utils.commit
* T5195: move user I/O helpers to vyos.utils.io
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Current state of vyos-1x smoketests have hardcoded features to test. The
feature support is inside the base class BasicInterfaceTest
class BasicInterfaceTest:
class TestCase(VyOSUnitTestSHIM.TestCase):
_test_dhcp = False
_test_ip = False
_test_mtu = False
_test_vlan = False
_test_qinq = False
_test_ipv6 = False
_test_ipv6_pd = False
_test_ipv6_dhcpc6 = False
_test_mirror = False
All derived classes need to enable the tests that are supported on this
interface type. Adding new feature to a given interface (like vif support in
T5237) require manually enabling those tests for the given interface.
It would make much more sense, if we can query the config backend for supported
interface options - or in other words - is there a CLI node available that
corresponds to set interfaces ethernet <name> vif - if that's the case,
_test_vlan = True.
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set interfaces vxlan vxlan0 parameters ip df <set|unset|inherit>
set interfaces geneve gnv0 parameters ip df <set|unset|inherit>
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VXLAN does support using multiple remotes but VyOS does not. Add the ability
to set multiple remotes and add their flood lists using "bridge" command.
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Background information [1]. Specifies whether an external control plane
(e.g. ip route encap/EVPN) or the internal FDB should be used.
[1]: https://legacy.netdevconf.info/2.2/slides/prabhu-linuxbridge-tutorial.pdf
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Currently every smoketest does the setup and destruction of the configsession
on its own durin setUp(). This creates a lot of overhead and one configsession
should be re-used during execution of every smoketest script.
In addiion a test that failed will leaf the system in an unconsistent state.
For this reason before the test is executed we will save the running config
to /tmp and the will re-load the config after the test has passed, always
ensuring a clean environment for the next test.
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Verify proper configuration of VXLAN parameters for
- source-interface
- source-address
- remote
- vni
- group
Before it was only verified if the VXLAN tunnel interface was configured
at all but not if the parameters are correct, too.
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It does not make sense (at all!) to re-initialize the entire class with every
call to setUp(). We neither change the enabled/disabled tastcases dynamically,
not do we adjust the testinterfaces during a run.
Remove the runtime overhead and place one-time init calls into setUpClass()
instead.
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Commit ef629504d4 ("smoketest: mirror: drop testcase") dropped the smoketests
entirely as they have been programmed in a wrong way leading to outages on live
development systems which used dummy interfaces for management traffic.
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vyos-smoketest-integration (T2832)
* 'master' of github.com:vyos/vyos-smoketest: (153 commits)
pppoe-server: test some more values
lcd: adjust to cli changes
lcd: adapt test to new CLI design
pppoe-server: initial smoketest with local and radius auth
pppoe: validate dhcpv6 client will be started
wireless: validate hostapd/wpa_supplicant is running
pppoe: sync to new dhcpv6-pd cli
anyconnect: T2812: add basic testing
ethernet: check interface disable state
router-advert: check 'infinity' option in script logic
ssh: config file is now volatile (moved to /run)
ipv6: link-local: test address assignment on interfaces
router-advert: add initial test
mdns-repeater: add basic test
pseudo-ethernet: extend smoketests with VIFs
l2tpv3: add initial interface test
wireless: use library function for loading kernel modules
ethernet: test "ip" subtree of interface for e.g. ARP settings
pppoe: use assertEqual()
service: bcast-relay: add initial tests
...
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