| Commit message (Collapse) | Author | Age | Files | Lines |
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In case of EVPN MH bond, a member port going in
protodown state due to external reason (one case being linkflap),
frr updates the state correctly but upon manually
clearing external reason trigger FRR to reinstate
protodown without any reason code.
Fix is to ensure if the protodown reason was external
and new state is to have protodown 'off' then do no reinstate
protodown.
Ticket: #3947432
Testing:
switch:#ip link show swp1
4: swp1: <NO-CARRIER,BROADCAST,MULTICAST,SLAVE,UP> mtu 9216 qdisc
pfifo_fast master bond1 state DOWN mode DEFAULT group default qlen
1000
link/ether 1c:34:da:2c:aa:68 brd ff:ff:ff:ff:ff:ff protodown on
protodown_reason <linkflap>
switch:#ip link set swp1 protodown off protodown_reason linkflap off
switch:#ip link show swp1
4: swp1: <NO-CARRIER,BROADCAST,MULTICAST,SLAVE,UP> mtu 9216 qdisc
pfifo_fast master bond1 state DOWN mode DEFAULT group default qlen
1000
link/ether 1c:34:da:2c:aa:68 brd ff:ff:ff:ff:ff:ff
Signed-off-by: Chirag Shah <chirag@nvidia.com>
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zebra: Prevent starvation in dplane_thread_loop
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When removing a large number of routes, the linux kernel can take the
cpu for an extended amount of time, leaving a situation where FRR
detects a starvation event.
r1# sharp install routes 10.0.0.0 nexthop 192.168.44.33 1000000 repeat 10
2024-06-14 12:55:49.365 [NTFY] sharpd: [M7Q4P-46WDR] vty[5]@# sharp install routes 10.0.0.0 nexthop 192.168.44.33 1000000 repeat 10
2024-06-14 12:55:49.365 [DEBG] sharpd: [YP4TQ-01TYK] Inserting 1000000 routes
2024-06-14 12:55:57.256 [DEBG] sharpd: [TPHKD-3NYSB] Installed All Items 7.890085
2024-06-14 12:55:57.256 [DEBG] sharpd: [YJ486-NX5R1] Removing 1000000 routes
2024-06-14 12:56:07.802 [WARN] zebra: [QH9AB-Y4XMZ][EC 100663314] STARVATION: task dplane_thread_loop (634377bc8f9e) ran for 7078ms (cpu time 220ms)
2024-06-14 12:56:25.039 [DEBG] sharpd: [WTN53-GK9Y5] Removed all Items 27.783668
2024-06-14 12:56:25.039 [DEBG] sharpd: [YP4TQ-01TYK] Inserting 1000000 routes
2024-06-14 12:56:32.783 [DEBG] sharpd: [TPHKD-3NYSB] Installed All Items 7.743524
2024-06-14 12:56:32.783 [DEBG] sharpd: [YJ486-NX5R1] Removing 1000000 routes
2024-06-14 12:56:41.447 [WARN] zebra: [QH9AB-Y4XMZ][EC 100663314] STARVATION: task dplane_thread_loop (634377bc8f9e) ran for 5175ms (cpu time 179ms)
Let's modify the loop in dplane_thread_loop such that after a provider
has been run, check to see if the event should yield, if so, stop
and reschedule this for the future.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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Add support for SRv6 SID Manager
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In the near future, some daemons may only register SIDs. This may be
the case for the pathd daemon when creating SRv6 binding SIDs.
When a locator is getting deleted at ZEBRA level, the daemon may have
an easy way to find out the SIds to unregister to.
This commit proposes to add the locator name to the SID_SRV6_NOTIFY
message whenever possible. Only case when an allocation failure happens,
the locator will not be present. In all other places, the notify API
at procol levels has the locator name extra-parameter.
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
Signed-off-by: Carmine Scarpitta <cscarpit@cisco.com>
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With 2 ISIS SRv6 instances, the second ISIS instance always gets
the same End SID as the first one.
> router isis 1
> segment-routing srv6
> locator loc1
> exit
> exit
> router isis 2
> segment-routing srv6
> locator loc2
> end
> segment-routing
> srv6
> locators
> locator loc1
> prefix 2001::1/64
> exit
> locator loc2
> prefix 3001::1/64
>
output:
> 2024/06/11 17:30:15 ISIS: [N6PCR-FQ5ZA] SRv6 locator (locator loc1, prefix 2001::1/64) set for IS-IS area 1
> 2024/06/11 17:30:15 ISIS: [V4RBG-TYW5S] Requesting SRv6 SIDs for IS-IS area 1
> 2024/06/11 17:30:15 ISIS: [ZRHYM-6RMYK] isis_zebra_srv6_sid_notify: received SRv6 SID notify: ctx End USP sid_value 2001::1 sid_func 0 note ZAPI_SRV6_SID_ALLOCATED
> [..]
> 2024/06/11 17:36:49 ISIS: [N6PCR-FQ5ZA] SRv6 locator (locator loc2, prefix 3001::1/64) set for IS-IS area 2
> 2024/06/11 17:36:49 ISIS: [V4RBG-TYW5S] Requesting SRv6 SIDs for IS-IS area 2
> 2024/06/11 17:36:49 ISIS: [ZRHYM-6RMYK] isis_zebra_srv6_sid_notify: received SRv6 SID notify: ctx End USP sid_value 2001::1 sid_func 0 note ZAPI_SRV6_SID_ALLOCATED
Actually, at the second request, ZEBRA always gives an existing dynamic
SID of the first available locator, because the locator name is never
checked.
> 2024/06/11 17:36:49 ZEBRA: [XMBTQ-GE6EY] get_srv6_sid: received SRv6 SID alloc request: SID ctx End USP ((null)), mode=dynamic
> 2024/06/11 17:36:49 ZEBRA: [R61Q3-QWR23] get_srv6_sid_dynamic: returning existing SID End USP 2001::1
> 2024/06/11 17:36:49 ZEBRA: [J1GMY-B6CAK] srv6_manager_get_sid_internal: got existing SRv6 SID for ctx End USP: sid_value=2001::1 (func=0) (proto=9, instance=0, sessionId=0), notify client
Fix this by checking the locator of the existing SID.
Fixes: b771bf8ce687 ("zebra: Add functions to alloc/release SRv6 SIDs")
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
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> 2024/06/07 15:09:43 ZEBRA: [MZYPC-GBDGR] srv6_manager_get_sid_internal: getting SRv6 SID for ctx End.DT4 vrf vrf1, sid_value=1003::4, locator_name=
> [..]
> 2024/06/07 15:09:43 ZEBRA: [QGJBT-YJ11W] zsend_srv6_sid_notify: notifying ZEBRA_SRV6_SID_NOTIFY ctx End.DT4 vrf vrf2, sid (null) note ZAPI_SRV6_SID_FAIL_ALLOC (proto=30, instance=0, sessionId=0)
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
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Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
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Currently, when a locator is deleted in zebra, zebra notifies only the
zclient that owns the locator.
With the introduction of SID Manager, the locator is no longer owned by
any client. Instead, the locator is owned by Zebra, and clients can
allocate and release SIDs from the locator using the ZAPI
ZEBRA_SRV6_MANAGER_GET_SID and ZEBRA_SRV6_MANAGER_RELEASE_SID.
Therefore, when a locator is removed in Zebra, we need to notify all
daemons so that they can release/uninstall the SIDs allocated by that
locator.
Signed-off-by: Carmine Scarpitta <cscarpit@cisco.com>
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Send asynchronous notifications to zclients when an SRv6 SID is
allocated/released and when a SID alloc/release operation fails.
Signed-off-by: Carmine Scarpitta <cscarpit@cisco.com>
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Previous commits introduced two new ZAPI operations,
`ZEBRA_SRV6_MANAGER_GET_SRV6_SID` and
`ZEBRA_SRV6_MANAGER_RELEASE_SRV6_SID`. These operations allow a daemon
to interact with the SRv6 SID Manager to get and release an SRv6 SID,
respectively.
This commit extends the SID Manager by adding logic to process the
requests `ZEBRA_SRV6_MANAGER_GET_SRV6_SID` and
`ZEBRA_SRV6_MANAGER_RELEASE_SRV6_SID`, and allocate/release SIDs to
requesting daemons.
Signed-off-by: Carmine Scarpitta <cscarpit@cisco.com>
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Add functions to allocate/release SRv6 SIDs. SIDs can be allocated
either explicitly (allocate a specific SID) or dynamically (allocate any
available SID).
Signed-off-by: Carmine Scarpitta <cscarpit@cisco.com>
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The previous commits introduced a new operation,
`ZEBRA_SRV6_MANAGER_GET_LOCATOR`, allowing a daemon to request
information about a specific SRv6 locator from the SRv6 SID Manager.
This commit extends the SID Manager to respond to a
`ZEBRA_SRV6_MANAGER_GET_LOCATOR` request and provide the requested
locator information.
Signed-off-by: Carmine Scarpitta <cscarpit@cisco.com>
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Add a data structure to represent an SRv6 SID context and the related
management functions (allocate/free).
Signed-off-by: Carmine Scarpitta <cscarpit@cisco.com>
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Add the CLI to choose the SID format of a locator. When the SID format
of a locator is changed, the SIDs allocated from that locator might no
longer be valid (for example, because the new format might involve a
different SID allocation schema). In such a case, it is necessary to
notify all the zclients so that they can withdraw/uninstall the old SIDs
that use the previous format and allocate/install/advertise the new SIDs
based on the new format.
Signed-off-by: Carmine Scarpitta <cscarpit@cisco.com>
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An SRv6 block is an IPv6 prefix from which SIDs are allocated. This
commit adds support for SRv6 SID blocks. Specifically, it adds a data
structure to store information about an SRv6 block (e.g., its occupancy
status, which SIDs have been allocated and which are available, which
SID format is used for that block, etc.). It also adds some functions to
manage the block (allocate / free / lookup).
These functions will be used in the next commits to support the
allocation of SIDs from a block in the SID Manager.
Signed-off-by: Carmine Scarpitta <cscarpit@cisco.com>
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Add CLI commands to support overriding default configuration of the SID
format.
Signed-off-by: Carmine Scarpitta <cscarpit@cisco.com>
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Add CLI commands to support overriding default configuration of the SID
format.
Signed-off-by: Carmine Scarpitta <cscarpit@cisco.com>
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Add functionalities to manage SRv6 SID formats (register / unregister /
lookup) and create two SID formats upon SRv6 Manager initialization:
`uncompressed-f4024` and `usid-f3216`.
In future commits, we will add the CLI to allow the user to choose
between the two formats.
Signed-off-by: Carmine Scarpitta <cscarpit@cisco.com>
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If using weighted ECMP, the weight for non-recursive next-hop should be
inherited from recursive next-hop.
Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
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Instead of keeping a counter that is independent
of the queue's data structure. Just use the queue's
built-in counter. Ensure that it's pthread safe by
keeping it wrapped inside the mutex for adding/deleting
to the queue.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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zebra: fix Out Of Memory issue when displaying large route tables in JSON
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When displaying a route table in JSON, a table JSON object is storing
all the prefix JSON objects containing the prefix information. This
results in excessive memory allocation for JSON objects, potentially
leading to an out-of-memory error on the machine with large routing
tables.
To Fix the memory consumption issue for the "show ip[v6] route [vrf XX]
json" command, display the prefixes one by one and free the memory of
each JSON object after it has been displayed.
Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
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0e2fc3d67f ("vtysh, zebra: Fix malformed json output for multiple vrfs
in command 'show ip route vrf all json'") has been reverted in the
previous commit. Although the fix was correct, it was consuming too muca
memory when displaying large route tables.
A root JSON object was storing all the JSON objects containing the route
tables, each containing their respective prefixes in JSON objects. This
resulted in excessive memory allocation for JSON objects, potentially
leading to an out-of-memory error on the machine.
To Fix the memory consumption issue for the "show ip[v6] route vrf all
json" command, display the tables one by one and free the memory of each
JSON object after it has been displayed.
Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
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'show ip route vrf all json'"
This reverts commit 0e2fc3d67f1d358896a764373f41cb59c095eda9.
This fix was correct but not optimal for memory consumption at scale.
Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
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lib, bgpd, tests, zebra: prefix_sg changes for V6 VTEP
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Signed-off-by: Mike RE Mallin <mremallin@gmail.com>
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Signed-off-by: Mike RE Mallin <mremallin@gmail.com>
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zebra: display srv6 encapsulation source-address when configured
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The 'show running-config' does not display the ipv6 source address
when a locator is not configured. Fix this by systematically displaying
the ipv6 source address.
Fixes: 6a0956169b31 ("zebra: Add encap source address to SRv6 config write function")
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
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Validate incoming message length against correct
(struct rtmsg) len, not top-level netlink message header size.
Signed-off-by: Mark Stapp <mjs@cisco.com>
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Fixes:
zebra/zebra_netns_notify.c: In function 'zebra_ns_ready_read':
zebra/zebra_netns_notify.c:266:40: error: implicit declaration of function 'basename' [-Wimplicit-function-declaration]
266 | if (strmatch(VRF_DEFAULT_NAME, basename(netnspath))) {
| ^~~~~~~~
Fixed by including libgen.h, then since basename may modify its
parameter, allocate a copy on the stack, using strdupa, and pass the
temporary string to basename.
According to the man page for basename:
With glibc, one gets the POSIX version of basename() when
<libgen.h> is included, and the GNU version otherwise.
The POSIX version of basename may modify the contents of path,
so we should to pass a copy when calling this function.
[1] https://man7.org/linux/man-pages/man3/basename.3.html
Signed-off-by: Georgi Valkov <gvalkov@gmail.com>
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lib: take into account the Linux IFF_LOWER_UP flag
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I don't know why it appears only now.
> ../sdist/zebra/fpm_listener.c:420:8: error: comparison of integers of different signs: 'int' and 'size_t' (aka 'unsigned long') [-Werror,-Wsign-compare]
> if (!RTNH_OK(rtnh, len)) {
> ^~~~~~~~~~~~~~~~~~
> ../sdist/include/linux/rtnetlink.h:437:31: note: expanded from macro 'RTNH_OK'
> ((int)(rtnh)->rtnh_len) <= (len))
len is set with RTA_PAYLOAD and should be an integer.
> len = RTA_PAYLOAD(mpath_rtattr);
> #define RTA_PAYLOAD(rta) ((int)((rta)->rta_len) - RTA_LENGTH(0))
Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
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zebra: Deny the routes if ip protocol CLI refers to an undefined rmap
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Currently zebra does not deny the routes if `ip protocol <proto> route-map
FOO`
commmand is configured with reference to an undefined route-map (FOO in
this case).
However, on FRR restart, in zebra_route_map_check() routes get denied
if route-map name is available but the route-map is not defined. This
change was introduced in fd303a4ba14c762550db972317e1e88528768005.
Fix:
When `ip protocol <proto> route-map FOO` CLI is configured with reference to an
undefined route-map FOO, let the processing in ip_protocol_rm_add() and
ip_protocol_rm_del() go through so that zebra can deny the routes instead
of simply returning. This will result in consistent behavior.
Testing Done:
Before fix:
```
spine-1# configure
spine-1(config)# ip protocol bgp route-map rmap7
root@spine-1:mgmt:/var/home/cumulus# vtysh -c "show run" | grep rmap7
ip protocol bgp route-map rmap7
root@spine-1:mgmt:/var/home/cumulus#
spine-1(config)# do show ip route
Codes: K - kernel route, C - connected, S - static, R - RIP,
O - OSPF, I - IS-IS, B - BGP, E - EIGRP, N - NHRP,
T - Table, A - Babel, D - SHARP, F - PBR, f - OpenFabric,
Z - FRR,
> - selected route, * - FIB route, q - queued, r - rejected, b - backup
t - trapped, o - offload failure
C>* 27.0.0.1/32 is directly connected, lo, 02:27:45
B>* 27.0.0.3/32 [20/0] via fe80::202:ff:fe00:21, downlink_1, weight 1, 02:27:35
B>* 27.0.0.4/32 [20/0] via fe80::202:ff:fe00:29, downlink_2, weight 1, 02:27:40
B>* 27.0.0.5/32 [20/0] via fe80::202:ff:fe00:31, downlink_3, weight 1, 02:27:40
B>* 27.0.0.6/32 [20/0] via fe80::202:ff:fe00:39, downlink_4, weight 1, 02:27:40
```
After fix:
```
spine-1(config)# ip protocol bgp route-map route-map67
spine-1(config)# do show ip route
Codes: K - kernel route, C - connected, S - static, R - RIP,
O - OSPF, I - IS-IS, B - BGP, E - EIGRP, N - NHRP,
T - Table, A - Babel, D - SHARP, F - PBR, f - OpenFabric,
Z - FRR,
> - selected route, * - FIB route, q - queued, r - rejected, b - backup
t - trapped, o - offload failure
C>* 27.0.0.1/32 is directly connected, lo, 00:35:03
B 27.0.0.3/32 [20/0] via fe80::202:ff:fe00:21, downlink_1 inactive, weight 1, 00:34:58
B 27.0.0.4/32 [20/0] via fe80::202:ff:fe00:29, downlink_2 inactive, weight 1, 00:34:57
B 27.0.0.5/32 [20/0] via fe80::202:ff:fe00:31, downlink_3 inactive, weight 1, 00:34:57
B 27.0.0.6/32 [20/0] via fe80::202:ff:fe00:39, downlink_4 inactive, weight 1, 00:34:58
spine-1(config)#
root@spine-1:mgmt:/var/home/cumulus# ip route show
root@spine-1:mgmt:/var/home/cumulus#
```
Signed-off-by: Pooja Jagadeesh Doijode <pdoijode@nvidia.com>
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*: Modify agentx to be allowed to be called
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If you had a situation where an operator turned on
ospfd with snmp but not ospf6d and agentx was configured
then you get into a situation where ospf6d would complain
that the config for agentx did not exist. Let's modify
the code to allow this situation to happen.
Fixes: #15896
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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zebra: fix mpls command
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Configured with "mpls label bind 1.1.1.1/32 explicit-null", the running
configuration is:
```
!
mpls label bind 1.1.1.1/32 IPv4 Explicit Null
!
```
After this commit, the running configuration is:
```
!
mpls label bind 1.1.1.1/32 explicit-null
!
```
And add the support for the "no" form:
```
anlan(config)# mpls label bind 1.1.1.1/32 explicit-null
anlan(config)# no mpls label bind 1.1.1.1/32 explicit-null
```
Signed-off-by: anlan_cs <anlan_cs@tom.com>
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zebra: fix wrong fpm packet header
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Signed-off-by: anlan_cs <anlan_cs@tom.com>
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zebra: Update Zebra DPDK >=22.11 API
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* Starting from version DPDK 22.11 we have API changes:
The rte_driver and rte_device objects are now opaque and must be manipulated through added accessors.
We need to update Zebra DPDK sources to DPDK version >=22.11
* Fix clang-format
Signed-off-by: EasyNet <devel@easynet.dev>
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The zebra_nexthop_vty_helper() and zebra_nexthop_json_helper()
functions could be very helpful to display nexthop information
from whatever daemon.
Move the core function in the nexthop_vty_helper() and the
nexthop_json_helper() function. The zebra API call remains
unchanged.
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
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zebra: include route source set by route-map in show output
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Include the prefix source address when set by a route-map in
show output for routes, in various formats.
Add some debugs when encoding netlink route messages with
a source address.
Signed-off-by: Mark Stapp <mjs@cisco.com>
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Parse attr problems
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The fpm code path for the dplane_fpm_nl module was improperly
encoding the multipath nexthop data for vxlan type routes.
Move this into the embedded nexthop encoding where it belongs.
This change makes it so that the usage of `-M dplane_fpm_nl`
is now producing the same netlink messages that `-M fpm`
produces when using vxlan based nexthops.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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