mirror of
https://gitlab.nic.cz/labs/bird.git
synced 2024-11-08 12:18:42 +00:00
BGP: Splitting Route Refresh and Enhanced Route Refresh toggles
This commit is contained in:
parent
198fb23a3a
commit
843bd05087
@ -2706,14 +2706,20 @@ using the following configuration parameters:
|
||||
changes its import filter, or if there is suspicion of inconsistency) it
|
||||
is necessary to do a new complete route exchange. BGP protocol extension
|
||||
Route Refresh (<rfc id="2918">) allows BGP speaker to request
|
||||
re-advertisement of all routes from its neighbor. BGP protocol
|
||||
extension Enhanced Route Refresh (<rfc id="7313">) specifies explicit
|
||||
begin and end for such exchanges, therefore the receiver can remove
|
||||
stale routes that were not advertised during the exchange. This option
|
||||
specifies whether BIRD advertises these capabilities and supports
|
||||
re-advertisement of all routes from its neighbor. This option
|
||||
specifies whether BIRD advertises this capability and supports
|
||||
related procedures. Note that even when disabled, BIRD can send route
|
||||
refresh requests. Default: on.
|
||||
|
||||
<tag><label id="bgp-enable-enhanced-route-refresh">enable enhanced route refresh <m/switch/</tag>
|
||||
BGP protocol extension Enhanced Route Refresh (<rfc id="7313">) specifies explicit
|
||||
begin and end for Route Refresh (see previous option),
|
||||
therefore the receiver can remove
|
||||
stale routes that were not advertised during the exchange. This option
|
||||
specifies whether BIRD advertises this capability and supports
|
||||
related procedures.
|
||||
Default: on.
|
||||
|
||||
<tag><label id="bgp-graceful-restart">graceful restart <m/switch/|aware</tag>
|
||||
When a BGP speaker restarts or crashes, neighbors will discard all
|
||||
received paths from the speaker, which disrupts packet forwarding even
|
||||
|
@ -96,6 +96,7 @@ struct bgp_config {
|
||||
u32 default_med; /* Default value for MULTI_EXIT_DISC attribute */
|
||||
int capabilities; /* Enable capability handshake [RFC 5492] */
|
||||
int enable_refresh; /* Enable local support for route refresh [RFC 2918] */
|
||||
int enable_enhanced_refresh; /* Enable local support for enhanced route refresh [RFC 7313] */
|
||||
int enable_as4; /* Enable local support for 4B AS numbers [RFC 6793] */
|
||||
int enable_extended_messages; /* Enable local support for extended messages [RFC 8654] */
|
||||
int enable_hostname; /* Enable local support for hostname [draft] */
|
||||
|
@ -23,7 +23,7 @@ CF_KEYWORDS(BGP, LOCAL, NEIGHBOR, AS, HOLD, TIME, CONNECT, RETRY, KEEPALIVE,
|
||||
BGP_LOCAL_PREF, BGP_MED,
|
||||
SOURCE, ADDRESS, PASSWORD, RR, RS, CLIENT, CLUSTER, ID, AS4, ADVERTISE,
|
||||
IPV4, CAPABILITIES, LIMIT, PASSIVE, PREFER, OLDER, MISSING, LLADDR,
|
||||
DROP, IGNORE, ROUTE, REFRESH, INTERPRET, COMMUNITIES,
|
||||
DROP, IGNORE, ENHANCED, ROUTE, REFRESH, INTERPRET, COMMUNITIES,
|
||||
IGP, TABLE, GATEWAY, DIRECT, RECURSIVE, MED, TTL,
|
||||
SECURITY, DETERMINISTIC, SECONDARY, ALLOW, BFD, ADD, PATHS, RX, TX,
|
||||
GRACEFUL, RESTART, AWARE, CHECK, LINK, PORT, EXTENDED, MESSAGES, SETKEY,
|
||||
@ -66,6 +66,7 @@ bgp_proto_start: proto_start BGP {
|
||||
BGP_CFG->error_delay_time_min = 60;
|
||||
BGP_CFG->error_delay_time_max = 300;
|
||||
BGP_CFG->enable_refresh = 1;
|
||||
BGP_CFG->enable_enhanced_refresh = 1;
|
||||
BGP_CFG->enable_as4 = 1;
|
||||
BGP_CFG->enable_hostname = 0;
|
||||
BGP_CFG->capabilities = 2;
|
||||
@ -189,6 +190,7 @@ bgp_proto:
|
||||
| bgp_proto DISABLE AFTER ERROR bool ';' { BGP_CFG->disable_after_error = $5; }
|
||||
| bgp_proto DISABLE AFTER CEASE bgp_cease_mask ';' { BGP_CFG->disable_after_cease = $5; }
|
||||
| bgp_proto ENABLE ROUTE REFRESH bool ';' { BGP_CFG->enable_refresh = $5; }
|
||||
| bgp_proto ENABLE ENHANCED ROUTE REFRESH bool ';' { BGP_CFG->enable_enhanced_refresh = $6; }
|
||||
| bgp_proto ENABLE AS4 bool ';' { BGP_CFG->enable_as4 = $4; }
|
||||
| bgp_proto ENABLE EXTENDED MESSAGES bool ';' { BGP_CFG->enable_extended_messages = $5; }
|
||||
| bgp_proto ADVERTISE HOSTNAME bool ';' { BGP_CFG->enable_hostname = $4; }
|
||||
|
@ -237,7 +237,7 @@ bgp_prepare_capabilities(struct bgp_conn *conn)
|
||||
caps->as4_support = p->cf->enable_as4;
|
||||
caps->ext_messages = p->cf->enable_extended_messages;
|
||||
caps->route_refresh = p->cf->enable_refresh;
|
||||
caps->enhanced_refresh = p->cf->enable_refresh;
|
||||
caps->enhanced_refresh = p->cf->enable_enhanced_refresh;
|
||||
caps->role = p->cf->local_role;
|
||||
|
||||
if (caps->as4_support)
|
||||
|
Loading…
Reference in New Issue
Block a user