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Diffstat (limited to 'docs/configuration/protocols/bgp.rst')
| -rw-r--r-- | docs/configuration/protocols/bgp.rst | 50 |
1 files changed, 36 insertions, 14 deletions
diff --git a/docs/configuration/protocols/bgp.rst b/docs/configuration/protocols/bgp.rst index 737e98fa..85bb41ca 100644 --- a/docs/configuration/protocols/bgp.rst +++ b/docs/configuration/protocols/bgp.rst @@ -209,35 +209,35 @@ Defining Peers .. cfgcmd:: set protocols bgp neighbor <address|interface> local-role <role> [strict] - BGP roles are defined in RFC :rfc:`9234` and provide an easy way to - add route leak prevention, detection and mitigation. The local Role - value is negotiated with the new BGP Role capability which has a - built-in check of the corresponding value. In case of a mismatch the + BGP roles are defined in RFC :rfc:`9234` and provide an easy way to + add route leak prevention, detection and mitigation. The local Role + value is negotiated with the new BGP Role capability which has a + built-in check of the corresponding value. In case of a mismatch the new OPEN Roles Mismatch Notification <2, 11> would be sent. The correct Role pairs are: - + Provider - Customer Peer - Peer RS-Server - RS-Client - If :cfgcmd:`strict` is set the BGP session won’t become established - until the BGP neighbor sets local Role on its side. This + If :cfgcmd:`strict` is set the BGP session won’t become established + until the BGP neighbor sets local Role on its side. This configuration parameter is defined in RFC :rfc:`9234` and is used to enforce the corresponding configuration at your counter-parts side. - - Routes that are sent from provider, rs-server, or the peer local-role - (or if received by customer, rs-client, or the peer local-role) will + + Routes that are sent from provider, rs-server, or the peer local-role + (or if received by customer, rs-client, or the peer local-role) will be marked with a new Only to Customer (OTC) attribute. - + Routes with this attribute can only be sent to your neighbor if your local-role is provider or rs-server. Routes with this attribute can - be received only if your local-role is customer or rs-client. - + be received only if your local-role is customer or rs-client. + In case of peer-peer relationship routes can be received only if OTC value is equal to your neighbor AS number. - + All these rules with OTC will help to detect and mitigate route leaks and happen automatically if local-role is set. @@ -584,6 +584,12 @@ General Configuration Common parameters ^^^^^^^^^^^^^^^^^ +.. cfgcmd:: set protocols bgp parameters allow-martian-nexthop + + When a peer receives a martian nexthop as part of the NLRI for a route + permit the nexthop to be used as such, instead of rejecting and resetting + the connection. + .. cfgcmd:: set protocols bgp parameters router-id <id> This command specifies the router-ID. If router ID is not specified it will @@ -598,6 +604,12 @@ Common parameters Path (both AS number and AS path length), Origin code, MED, IGP metric. Also, the next hop address for each path must be different. +.. cfgcmd:: set protocols bgp parameters no-hard-administrative-reset + + Do not send Hard Reset CEASE Notification for "Administrative Reset" + events. When set and Graceful Restart Notification capability is exchanged + between the peers, Graceful Restart procedures apply, and routes will be retained. + .. cfgcmd:: set protocols bgp parameters log-neighbor-changes This command enable logging neighbor up/down changes and reset reason. @@ -643,6 +655,16 @@ Common parameters compatibility with older versions of VyOS. With this option one can enable :rfc:`8212` functionality to operate. +.. cfgcmd:: set protocols bgp parameters labeled-unicast <explicit-null | + ipv4-explicit-null | ipv6-explicit-null> + + By default, locally advertised prefixes use the implicit-null label to + encode in the outgoing NLRI. + + The following command uses the explicit-null label value for all the + BGP instances. + + Administrative Distance ^^^^^^^^^^^^^^^^^^^^^^^ |