group (Protocols BGP)
语法
group group-name {
advertise-bgp-static
advertise-inactive;
allow [ network/mask-length ];
authentication-key key;
cluster cluster-identifier;
damping;
description text-description;
enforce-first-as;
export [ policy-names ];
family {
(inet | inet6 | inet-vpn | inet6-vpn | l2-vpn) {
(any | multicast | unicast | signaling) {
accepted-prefix-limit {
maximum number;
teardown <percentage> <idle-timeout (forever | minutes)>;
drop-excess <percentage>;
hide-excess <percentage>;
}
add-path {
receive;
send {
include-backup-path backup_path_number;
multipath;
path-count number;
path-selection-mode {
(all-paths | equal-cost-paths);
}
prefix-policy [ policy-names ];
}
}
aigp [disable];
damping;
prefix-limit {
maximum number;
teardown <percentage> <idle-timeout (forever | minutes)>;
drop-excess <percentage>;
hide-excess <percentage>;
}
rib-group group-name;
topology name {
community {
target identifier;
}
}
}
flow {
no-validate policy-name;
}
labeled-unicast {
accepted-prefix-limit {
maximum number;
teardown <percentage> <idle-timeout (forever | minutes)>;
drop-excess <percentage>;
hide-excess <percentage>;
}
explicit-null {
connected-only;
}
prefix-limit {
maximum number;
teardown <percentage> <idle-timeout (forever | minutes)>;
drop-excess <percentage>;
hide-excess <percentage>;
}
resolve-vpn;
rib inet.3;
rib-group group-name;
}
}
route-target {
accepted-prefix-limit {
maximum number;
teardown <percentage> <idle-timeout (forever | minutes)>;
drop-excess <percentage>;
hide-excess <percentage>;
}
advertise-default;
external-paths number;
prefix-limit {
maximum number;
teardown <percentage> <idle-timeout (forever | minutes)>;
drop-excess <percentage>;
hide-excess <percentage>;
}
}
}
graceful-restart {
long-lived {
receiver {
enable:
disable;
}
advertise-to-non-llgr-neighbor {
omit-no-export;
}
}
}
graceful-restart {
long-lived {
disable-notification-flag;
disable-notification-extensions {
omit-no-export;
}
forwarding-state-bit (from-fib | set); /* Configurable to be common for all address families */
forwarding-state-bit (as-rr-client | from-fib); /* Configurable for each address family */
restarter {
disable;
stale-time interval;
}
}
}
hold-time seconds;
import [ policy-names ];
ipsec-sa ipsec-sa;
keep (all | none);
local-address address;
local-as autonomous-system <private>;
local-preference local-preference;
log-updown;
link-bandwith auto-sense;
metric-out metric;
multihop <ttl-value>;
multipath {
multiple-as;
}
mvpn-iana-rt-import;
no-aggregator-id;
no-client-reflect;
out-delay seconds;
passive;
peer-as autonomous-system;
preference preference;
remove-private;
rfc6514-compliant-safi129;
send-non-transitive-link-bandwidth;
tcp-aggressive-transmission;
tcp-mss segment-size;
traceoptions {
file filename <files number> <size size> <world-readable | no-world-readable>;
flag flag <flag-modifier> <disable>;
}
type type;
neighbor address {
... peer-specific-options ...
}
}
层次结构级别
[edit logical-systems logical-system-name protocols bgp], [edit logical-systems logical-system-name routing-instances routing-instance-name protocols bgp], [edit protocols bgp], [edit protocols bgp family prefix-limit (inet | inet6)(any | flow | labeled-unicast | multicast | unicast)], [edit routing-instances routing-instance-name protocols bgp]
描述
定义 BGP 对等组。BGP 对等方组共享通用类型、对等自治系统 （AS） 编号和群集 ID（如果存在）。要配置多个 BGP 组，请包含多个 group 语句。
默认情况下，组的选项与全局 BGP 选项相同。要覆盖全局选项，请在语句中包含 group 特定于组的选项。
该 group 语句是在路由设备上运行 BGP 时必须包含在配置中的语句之一。
每个组必须至少包含一个对等方，并且最多可以建立 2048 个对等方。在建立 BGP 会话之前，RPD 会检查组的已建立对等计数。如果对等计数大于 2048，则 BGP 会话失败。
选项
| group-name | BGP 组的名称 |
| link-bandwith auto-sense | 启用此选项可自动检测朝向对等方的带宽，并将链路带宽值附加到接收 BGP 路由的接口速度。这可以防止在接口的链路带宽发生变化时出现策略变动。请确保还在导入策略中包含语句 |
| send-non-transitive-link-bandwidth | 启用此选项可仅针对链路带宽社区向 EBGP 邻接方发送非传递链路带宽扩展社区。所有带有社区值的非传递链路带宽都会被公布，包括发起或接收以及重新通告的 link-bw 社区。 |
其余语句将单独解释。请参阅 CLI 资源管理器。
所需权限级别
路由 - 在配置中查看此语句。
路由控制 - 将此语句添加到配置中。
发布信息
在 Junos OS 7.4 版之前引入的语句。
link-bandwith auto-sense，以及 send-non-transitive-link-bandwidth Junos OS 24.2R1 版中引入的选项。