Adds a knob that sets the time between loc-rib scans for conditional
advertisement.
I chose the range (5-240) because 1 second seems dumb and too easy to
hurt yourself at even moderate scale, 5 seconds you can still hurt
yourself but I could see a use case for it, and 4 minutes should be
enough for anyone (tm)
Signed-off-by: Quentin Young <qlyoung@nvidia.com>
There is no need to test for null values in the hash compare
function as that we are guaranteed to send in data in
the hash compare functions.
Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
the realloc man page:
If ptr is NULL, then the call is equivalent to malloc(size)
This should be sufficient for our needs to not have to have
XMALLOC and XREALLOC
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
There is no need to test for null values in the hash compare
function as that we are guaranteed to send in data in
the hash compare functions.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
When setting bgp configuration using peers referencing link local
ipv6 addresses, the bgp should be able to handle incoming bgp
connections, and find out the appropriate interface where the
connection comes from.
ipv6 link local sessions work by using bgp unnumbered interfaces
config, but it does not work if we have a shared media with
multiple potential link local ipv6 addresses on the network.
The fix consists in finding out the appropriate interface, when
the local configuration references a link local ipv6 addresses,
and the source address used references an interface. below
configuration illustrates what can be done then:
neighbor fe80::4113:5bba:2b61:b20c remote-as 55
neighbor fe80::4113:5bba:2b61:b20c update-source eth0
note: this change does not solve the ability for such config to
create an outgoing connection to remote peer (as the link local
ipv6 address config does not indicate which interface to use).
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
Problem: Sometimes the configured Local GR state is not reflected in
show command and peer node. This is causing failures in few of the
BGP-GR topotests.
RCA: This problem is seen when the configuration of local GR state
happens when the BGP session is in OpenSent state and moves to
Established after the configuration is complete.
When the session gets established, we move the GR state value from stub peer
to the config peer. This will result in overriding the GR state to
previous value.
Fix: The local GR state is modified only through CLI configuration and
does not change during BGP FSM transition. In this case it is not necessary
to transfer the GR state value from stub peer to config peer. This way we
can ensure that always the most recent config value is present in peer
datastructure.
Signed-off-by: Prerana-GB <prerana@vmware.com>
There is no peer_af allocated in `peer_activate`. Trying to delete
the structure just results in an no-op and a error return value.
The error message "couldn't delete af structure for peer" is
unexpected.
Signed-off-by: zyxwvu Shi <shiyuchen.syc@bytedance.com>
New peers should be initialized with a usual max packet size and later
determined on OPEN messages.
Testing with different peers supporting/not supporting extended support.
2021/07/02 13:48:00 BGP: [WEV7K-2GAQ5] u2:s2 send UPDATE len 8991 (max message len: 65535) numpfx 1788
2021/07/02 13:48:03 BGP: [WEV7K-2GAQ5] u3:s3 send UPDATE len 4096 (max message len: 4096) numpfx 809
2021/07/02 13:48:03 BGP: [WEV7K-2GAQ5] u3:s3 send UPDATE len 4096 (max message len: 4096) numpfx 809
Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
This should be garuanteed that we create a separate update-group if
bgp max packet size differs.
Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
When bgp peers with ipv6 link local addresses, it may receive a
BGP update with next-hop containing both LL and GA information.
By default, nexthop tracking applies to GA, and ignores presence
of LL, when both addresses are present. This is a problem for
resolving GA as next-hop as the next-hop information can be solved
by using the LL address only.
The solution consists in defaulting the nexthop ipv6 choice to LL
when available, and moving back to GA if a route-map is locally
configured at inbound.
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
There are startup situations where we will attempt to connect to a remote
peer before bgp has received the v6 LL address. If we do not have this address
we must not allow the connection to come up until we have one available to use
in those situations where we must have a v6 LL address.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
There are a few places in the code where we use PREFIX_COPY(_IPV4/IPV6)
macro to copy a prefix. Let's always use prefix_copy function for this.
This should fix CID 1482142 and 1504610.
Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
Process this a bit later instead of bgp_attr_parse() which is causing
the session to be shutdown upon receiving a prefix with AS number 0 inside.
Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
Adds new commands to allow a user to default 'default' address-families
to be inherited by all new peers. Previously this was limited to just
ipv4/ipv6 unicast, now the full list is:
---
ipv4-unicast
ipv4-multicast
ipv4-vpn
ipv4-labeled-unicast
ipv4-flowspec
ipv6-unicast
ipv6-multicast
ipv6-vpn
ipv6-labeled-unicast
ipv6-flowspec
l2vpn-evpn
---
Signed-off-by: Trey Aspelund <taspelund@nvidia.com>
