For the sake of Segment Routing (SR) and Traffic Engineering (TE)
Policies there's a need for additional infrastructure within zebra.
The infrastructure in this PR is supposed to manage such policies
in terms of installing binding SIDs and LSPs. Also it is capable of
managing MPLS labels using the label manager, keeping track of
nexthops (for resolving labels) and notifying interested parties about
changes of a policy/LSP state. Further it enables a route map mechanism
for BGP and SR-TE colors such that learned BGP routes can be mapped
onto SR-TE Policies.
This PR does not introduce any usable features by now, it is just
infrastructure for other upcoming PRs which will introduce 'pathd',
a new SR-TE daemon.
Co-authored-by: Renato Westphal <renato@opensourcerouting.org>
Co-authored-by: GalaxyGorilla <sascha@netdef.org>
Signed-off-by: Sebastien Merle <sebastien@netdef.org>
1. ES sample display
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
torm-11# show evpn es
Type: L local, R remote
ESI Type ES-IF VTEPs
00:00:00:00:00:00:00:00:00:00 -
03:00:00:00:00:01:11:00:00:01 LR hostbond1 27.0.0.16
03:00:00:00:00:01:22:00:00:02 LR hostbond2 27.0.0.16
03:00:00:00:00:01:22:00:00:03 LR hostbond3 27.0.0.16
03:00:00:00:00:02:11:00:00:01 R - 27.0.0.17,27.0.0.18
03:00:00:00:00:02:22:00:00:02 R - 27.0.0.17,27.0.0.18
03:00:00:00:00:02:22:00:00:03 R - 27.0.0.17,27.0.0.18
torm-11#
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2. ES-EVI sample display
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
torm-11# show evpn es-evi
Type: L local, R remote
VNI ESI Type
1005 03:00:00:00:00:01:11:00:00:01 L
1005 03:00:00:00:00:01:22:00:00:02 L
1005 03:00:00:00:00:01:22:00:00:03 L
1002 03:00:00:00:00:01:11:00:00:01 L
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
Improve vty output for routes and lsps with backups, including
json. Simplify or correct some code that uses both primary and
backup nexthops in dplane, nht.
Signed-off-by: Mark Stapp <mjs@voltanet.io>
Initial changes to support a nexthop with multiple backups. Lib
changes to hold a small array in each primary, zapi message
changes to support sending multiple backups, and daemon
changes to show commands to support multiple backups. The config
input for multiple backup indices is not present here.
Signed-off-by: Mark Stapp <mjs@voltanet.io>
Include backup nexthops in json output; function-ify the json
output for nexthops; revise the display of backup nexthops to
use the 'b' character.
Signed-off-by: Mark Stapp <mjs@voltanet.io>
And again for the name. Why on earth would we centralize this, just so
people can forget to update it?
Signed-off-by: David Lamparter <equinox@diac24.net>
There is really no reason to not put this in the cmd_node.
And while we're add it, rename from pointless ".func" to ".config_write".
[v2: fix forgotten ldpd config_write]
Signed-off-by: David Lamparter <equinox@diac24.net>
The only nodes that have this as 0 don't have a "->func" anyway, so the
entire thing is really just pointless.
Signed-off-by: David Lamparter <equinox@diac24.net>
Add a common api that formats a time interval into a string
with different output for short and longer intervals. We do
this in several places, for cli/ui output.
Signed-off-by: Mark Stapp <mjs@voltanet.io>
Embed nexthop-group, which is just a pointer, in the zebra
nexthop-hash-entry object, rather than mallocing one.
Signed-off-by: Mark Stapp <mjs@voltanet.io>
Today vtysh can show the ip/ip6 routes through several commands:
- show_route_cmd
- show_route_detail_cmd
- show_route_summary_cmd
- show_route_table_cmd
- show_route_table_vrf_cmd
- show_route_all_table_vrf_cmd
Each command has its own set of filter rules:
- show_route_cmd can filter by vrf, protocol, tag, ... but not by table
- show_route_table_cmd always filter by table
- show_route_table_vrf_cmd always filter by table and can filter by vrf
too
- show_route_all_table_vrf_cmd show all route in any table for a vrf (or
all)
To reduce the number of commands and provide a possibility to filter by
any key add possibility for the show_route_cmd to filter by table with a
specific value or all to get route in all tables.
Then the show_route_table_cmd, show_route_table_vrf_cmd and
show_route_all_table_vrf_cmd functions can be removed as they are covered
by the generic show_route_cmd function.
It is to be noted that when zebra is started by default, it is possible
to execute show ip route command with both vrf and table parameters,
whereas before the command was not displayed. This is due to the fact
that this combination is only permitted when zebra is launched with vrf
network namespace mode. There, if zebra is configured with vrf-lite
backend, then a vty error message informs the user that the combination
of both table and vrf is not possible.
Signed-off-by: Thibaut Collet <thibaut.collet@6wind.com>
Use a hash walker/iterator instead of a temporary list to
show zebra's nexthop-groups/nexthop-hash-entries.
Signed-off-by: Mark Stapp <mjs@voltanet.io>
Nexthop groups as a whole do not make sense to have a vrf'ness
As that you can have a arbitrary number of nexthops that point
to separate vrf's.
Modify the code to make this distinction, by clearly delineating
the line between the nhg and the nexthop a bit better.
Nexthop groups having a vrf_id only make sense if you are using
network namespaces to represent them.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
The zebra implementation of nexthop groups has
two types of nexthops groups currently. Singleton
objects which have afi's and combined nexthop groups
that do not. Specifically call this out in the code
to make this distinction.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Add a config that disables use of kernel-level nexthop ids.
Currently, zebra always uses nexthop ids if the kernel supports
them.
Signed-off-by: Mark Stapp <mjs@voltanet.io>
There's confusion between the nexthop-group configuration and a
zebra-specific show command. For now, make the zebra show
command string RIB-specific until we're able to unify these
paths.
Signed-off-by: Mark Stapp <mjs@voltanet.io>
