Quagga 是一个网络路由软件套件，用于提供各种不同的路由协议实施。NSX Advanced Load Balancer 使用 Quagga 对虚拟服务进行基于 BGP 的缩放。
有关 BGP 缩放的更多信息，请参见提供 BGP 支持以缩放虚拟服务。
说明
Quagga Shell 用于检查 BGP 配置和 BGP 对等体状态。
注：
在该示例中，所有命令是从托管启用了 BGP 的虚拟服务的 NSX Advanced Load Balancer SE 上的默认命名空间中执行的。要列出可用的命名空间，请使用 ip netns 命令。要切换到所需的数据路径命名空间，请使用以下命令。
admin@AVI-SE1:ip netns exec namespace name bash
可以使用 netcat localhost bgpd 命令而不是 telnet localhost bgpd 命令访问 Quagga Shell。
admin@AVI-SE1: netcat localhost bgpd Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. Hello, this is Quagga (version 0.99.24.1).
如果身份验证成功，则会观察到以下输出：
Quagga-bgp>
配置和故障排除命令
可以使用 show run 命令以检查运行配置：
Quagga-bgp> en Quagga-bgp# show run Current configuration: ! password <password> log file /var/lib/avi/log/bgp/0_bgpd.log ! router bgp 65000 bgp router-id 1.2.87.205 network 10.140.99.153/32 neighbor 10.140.60.155 remote-as 3 neighbor 10.140.60.155 password <password> neighbor 10.140.60.155 advertisement-interval 5 neighbor 10.140.60.155 timers 60 180 neighbor 10.140.60.155 timers connect 10 neighbor 10.140.60.155 distribute-list 2 out neighbor 10.140.99.157 remote-as 2 neighbor 10.140.99.157 password <password> neighbor 10.140.99.157 advertisement-interval 5 neighbor 10.140.99.157 timers 60 180 neighbor 10.140.99.157 timers connect 10 neighbor 10.140.99.157 distribute-list 1 out ! access-list 1 permit 10.140.99.153 ! line vty ! end
可以使用 show bgp neighbors 命令检查 BGP 对等连接状态：
10-140-4-220# *show bgp neighbors*
BGP neighbor is 10.140.60.155, remote AS 3, local AS 65000, external link
BGP version 4, remote router ID 0.0.0.0
BGP state = Active*
Last read 03w5d06h, hold time is 180, keepalive interval is 60 seconds
Configured hold time is 180, keepalive interval is 60 seconds
Message statistics:
Inq depth is 0
Outq depth is 0
Sent Rcvd
Opens: 0 0
Notifications: 0 0
Updates: 0 0
Keepalives: 0 0
Route Refresh: 0 0
Capability: 0 0
Total: 0 0
Minimum time between advertisement runs is 5 seconds
For address family: IPv4 Unicast
Community attribute sent to this neighbor(both)
Outbound path policy configured
Outgoing update network filter list is 2
0 accepted prefixes
Connections established 0; dropped 0
Last reset never
Next connect timer due in 3 seconds
Read thread: off Write thread: off
BGP neighbor is 10.140.99.157, remote AS 2, local AS 65000, external link
BGP version 4, remote router ID 10.140.6.28
BGP state = Established, up for 03w6d03h*
Last read 00:00:48, hold time is 180, keepalive interval is 60 seconds
Configured hold time is 180, keepalive interval is 60 seconds
Neighbor capabilities:
4 Byte AS: advertised and received
Route refresh: advertised and received(old & new)
Address family IPv4 Unicast: advertised and received
Graceful Restart Capabilty: advertised and received
Remote Restart timer is 120 seconds
Address families by peer:
none
Graceful restart informations:
End-of-RIB send: IPv4 Unicast
End-of-RIB received: IPv4 Unicast
Message statistics:
Inq depth is 0
Outq depth is 0
Sent Rcvd
Opens: 6 3
Notifications: 3 0
Updates: 4 1
Keepalives: 39103 39102
Route Refresh: 0 0
Capability: 0 0
Total: 39116 39106
Minimum time between advertisement runs is 5 seconds
For address family: IPv4 Unicast
Community attribute sent to this neighbor(both)
Outbound path policy configured
Outgoing update network filter list is *1
0 accepted prefixes
Connections established 1; dropped 0
Last reset never
Local host: 10.140.99.156, Local port: 179
Foreign host: 10.140.99.157, Foreign port: 54566
Nexthop: 10.140.99.156
Nexthop global: ::
Nexthop local: ::
BGP connection: non shared network
Read thread: on Write thread: off
