diff options
| author | Donald Sharp <sharpd@cumulusnetworks.com> | 2015-06-11 09:19:12 -0700 |
|---|---|---|
| committer | Donald Sharp <sharpd@cumulusnetworks.com> | 2015-06-11 09:19:12 -0700 |
| commit | 8a92a8a00ca49ad801dbcfcd02bfb65ea1f4b83e (patch) | |
| tree | a33248e6de30e1c443af56b792d4a26b258e742f /bgpd/bgp_open.h | |
| parent | 2d627ff50c181a26839aef7c0fc48ea4621b3e64 (diff) | |
bgpd, zebra: rfc-5549-generic.patch
This adds support for BGP RFC 5549 (Extended Next Hop Encoding capability)
* send and receive of the capability
* processing of IPv4->IPv6 next-hops
* for resolving these IPv6 next-hops, itsworks with the current
next-hop-tracking support
* added a new message type between BGP and Zebra for such route
install/uninstall
* zserv side of changes to process IPv4 prefix ->IPv6 next-hops
* required show command changes for IPv4 prefix having IPv6 next-hops
Few points to note about the implementation:
* It does an implicit next-hop-self when a [IPv4 prefix -> IPv6 LL next-hop]
is to be considered for advertisement to IPv4 peering (or IPv6 peering
without Extended next-hop capability negotiated)
* Currently feature is off by default, enable it by configuring
'neighbor <> capability extended-nexthop'
* Current support is for IPv4 Unicast prefixes only.
IMPORTANT NOTE:
This patch alone isn't enough to have IPv4->IPv6 routes installed into
the kernel. A separate patch is needed for that to work for the netlink
interface.
Signed-off-by: Vipin Kumar <vipin@cumulusnetworks.com>
Reviewed-by: Daniel Walton <dwalton@cumulusnetworks.com>
Vivek Venkatraman <vivek@cumulusnetworks.com>
Donald Sharp <sharpd@cumulusnetworks.com>
Diffstat (limited to 'bgpd/bgp_open.h')
| -rw-r--r-- | bgpd/bgp_open.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/bgpd/bgp_open.h b/bgpd/bgp_open.h index a818141fc3..6ef857284e 100644 --- a/bgpd/bgp_open.h +++ b/bgpd/bgp_open.h @@ -77,6 +77,7 @@ struct capability_gr #define CAPABILITY_CODE_DYNAMIC_OLD 66 /* Dynamic Capability, deprecated since 2003 */ #define CAPABILITY_CODE_DYNAMIC 67 /* Dynamic Capability */ #define CAPABILITY_CODE_ADDPATH 69 /* Addpath Capability */ +#define CAPABILITY_CODE_ENHE 5 /* Extended Next Hop Encoding */ #define CAPABILITY_CODE_REFRESH_OLD 128 /* Route Refresh Capability(cisco) */ #define CAPABILITY_CODE_ORF_OLD 130 /* Cooperative Route Filtering Capability(cisco) */ #define CAPABILITY_CODE_HOSTNAME 131 /* Advertise hostname capabilty */ @@ -89,6 +90,7 @@ struct capability_gr #define CAPABILITY_CODE_AS4_LEN 4 #define CAPABILITY_CODE_ADDPATH_LEN 4 #define CAPABILITY_CODE_MIN_HOSTNAME_LEN 2 +#define CAPABILITY_CODE_ENHE_LEN 6 /* NRLI AFI = 2, SAFI = 2, Nexthop AFI = 2 */ /* Cooperative Route Filtering Capability. */ |