From cc413e2aded6cbf8aba898de072bda4adcd34eee Mon Sep 17 00:00:00 2001 From: Donatas Abraitis Date: Wed, 5 Jan 2022 11:42:52 +0200 Subject: [PATCH] bgpd: Add a warning if we try to use the last reserved ASN Signed-off-by: Donatas Abraitis --- bgpd/bgp_vty.c | 4 ++++ doc/user/overview.rst | 2 ++ 2 files changed, 6 insertions(+) diff --git a/bgpd/bgp_vty.c b/bgpd/bgp_vty.c index e3340985c4..193a237132 100644 --- a/bgpd/bgp_vty.c +++ b/bgpd/bgp_vty.c @@ -1348,6 +1348,10 @@ DEFUN_NOSH (router_bgp, else { as = strtoul(argv[idx_asn]->arg, NULL, 10); + if (as == BGP_PRIVATE_AS_MAX || as == BGP_AS4_MAX) + vty_out(vty, "Reserved AS used (%u|%u); AS is %u\n", + BGP_PRIVATE_AS_MAX, BGP_AS4_MAX, as); + inst_type = BGP_INSTANCE_TYPE_DEFAULT; if (argc > 3) { name = argv[idx_vrf]->arg; diff --git a/doc/user/overview.rst b/doc/user/overview.rst index 85a6758fdb..d6a721bddb 100644 --- a/doc/user/overview.rst +++ b/doc/user/overview.rst @@ -353,6 +353,8 @@ BGP :t:`Deprecation of BGP Path Attributes: DPA, ADVERTISER, and RCID_PATH / CLUSTER_ID. J. Scudder. May 2013.` - :rfc:`7196` :t:`Making Route Flap Damping Usable. C. Pelsser, R. Bush, K. Patel, P. Mohapatra, O. Maennel. May 2014.` +- :rfc:`7300` + :t:`Reservation of Last Autonomous System (AS) Numbers. J. Haas, J. Mitchell. July 2014.` - :rfc:`7313` :t:`Enhanced Route Refresh Capability for BGP-4. K. Patel, E. Chen, B. Venkatachalapathy. July 2014.` - :rfc:`7606` -- 2.39.5