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| author | Philippe Guibert <philippe.guibert@6wind.com> | 2024-04-09 17:09:39 +0200 |
|---|---|---|
| committer | Philippe Guibert <philippe.guibert@6wind.com> | 2024-04-18 14:55:25 +0200 |
| commit | 8b27521cfa0c93dc326698d9f729a0486fc43ead (patch) | |
| tree | 7c242ccf96c89bc114a8184226ba2f408f8942aa /ospfd/ospf_interface.c | |
| parent | 8e7fb950c13779d700fa79f82423bfcb64974b39 (diff) | |
bgpd: do allocate vrf label only when necessary
Today, with the following bgp instance configured, the
local VRF label is allocated even if it is not used.
> router bgp 65500 vrf vrf1
> address-family ipv4 unicast
> label vpn export allocation-mode per-nexthop
> label vpn export auto
> rd vpn export 444:1
> rt vpn both 52:100
> export vpn
> import vpn
The 'show mpls table' indicates that the 16 label value
is allocated, but never used in the exported prefixes.
> r1# show mpls table
> Inbound Label Type Nexthop Outbound Label
> -----------------------------------------------------
> 16 BGP vrf1 -
> 17 BGP 192.168.255.13 -
> 18 BGP 192.0.2.12 -
> 19 BGP 192.0.2.11 -
Fix this by only allocating new label values when really
used. Consequently, only 3 labels will be allocated instead
of previously 4.
> r1# show mpls table
> Inbound Label Type Nexthop Outbound Label
> -----------------------------------------------------
> 16 BGP 192.168.255.13 -
> 17 BGP 192.0.2.11 -
> 18 BGP 192.0.2.12 -
Fixes: 577be36a41be ("bgpd: add support for l3vpn per-nexthop label")
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
Diffstat (limited to 'ospfd/ospf_interface.c')
0 files changed, 0 insertions, 0 deletions