示例：使用用户定义的网格组为 LDP VPLS 配置 BGP 自动发现
此示例介绍如何为转发等价类 （FEC） 129 中规定的 BGP 自动发现配置用户定义的网格组为 LDP VPLS。FEC 129 使用 BGP 自动发现来传输端点信息，因此无需手动配置伪线。您可以在边界路由器上配置网格组，以便对自动实现全网状连接且共享相同信令协议（BGP 或 LDP）的 PE 路由器集进行分组。您可以配置多个网格组，以便将每个全网状 LDP 信号域或 BGP 信号 VPLS 域映射到一个网格组。
要求
开始之前，为 LDP VPLS 配置 BGP 自动发现。请参阅 示例：为 LDP VPLS 配置 BGP 自动发现。
此示例的硬件和软件要求与 示例：为 LDP VPLS 配置 BGP 自动发现的要求相同。您需要将示例配置适应此示例中使用的拓扑结构。
概述
FEC 129 网格组的配置与 FEC 128 的网格组配置非常相似。
请注意 FEC 129 的以下差异：
每个用户定义的网格组都必须具有唯一的路由识别器。请勿使用为层级的默认网格组
[edit routing-intances]定义的路由识别器。每个用户定义的网格组都必须有自己的导入和导出路由目标。
每个用户定义的网格组都可以具有唯一的第 2 层 VPN ID。默认情况下，为 VPLS 路由实例配置的所有网格组都使用与在层次结构级别配置
[edit routing-instances]的第 2 层 VPN ID 相同的 ID。
配置
CLI 快速配置
要快速配置网格组，请复制以下命令，删除所有换行符，然后将命令粘贴到每个设备的 CLI 中。
设备 CE1
set interfaces ge-2/0/8 unit 0 family inet address 172.16.0.1/24 set interfaces lo0 unit 0 family inet address 10.255.14.214/32 set protocols ospf area 0.0.0.0 interface lo0.0 passive set protocols ospf area 0.0.0.0 interface ge-2/0/8.0
设备 CE3
set interfaces ge-2/0/9 unit 0 family inet address 172.16.0.3/24 set interfaces lo0 unit 0 family inet address 10.255.14.218/32 set protocols ospf area 0.0.0.0 interface lo0.0 passive set protocols ospf area 0.0.0.0 interface ge-2/0/9.0
设备 CE4
set interfaces ge-2/1/6 unit 0 family inet address 172.16.0.4/24 set interfaces lo0 unit 0 family inet address 10.255.14.219/32 set protocols ospf area 0.0.0.0 interface lo0.0 passive set protocols ospf area 0.0.0.0 interface ge-2/1/6.0
设备 R2
set interfaces ge-2/0/5 encapsulation ethernet-vpls set interfaces ge-2/0/5 unit 0 description to_CE1 set interfaces ge-2/0/5 unit 0 family vpls set interfaces ge-2/0/10 unit 0 description to_R3 set interfaces ge-2/0/10 unit 0 family inet address 10.10.4.2/30 set interfaces ge-2/0/10 unit 0 family mpls set interfaces ge-2/0/11 unit 0 description to_R4 set interfaces ge-2/0/11 unit 0 family inet address 10.10.5.1/30 set interfaces ge-2/0/11 unit 0 family mpls set interfaces lo0 unit 0 family inet address 192.0.2.2/24 set protocols mpls interface ge-2/0/10.0 set protocols mpls interface ge-2/0/11.0 set protocols bgp local-address 192.0.2.2 set protocols bgp group pe-pe type internal set protocols bgp group pe-pe connect-retry-interval 1 set protocols bgp group pe-pe family l2vpn auto-discovery-only set protocols bgp group pe-pe family l2vpn signaling set protocols bgp group pe-pe neighbor 192.0.2.3 set protocols bgp group pe-pe neighbor 192.0.2.4 set protocols ospf traffic-engineering set protocols ospf area 0.0.0.0 interface lo0.0 passive set protocols ospf area 0.0.0.0 interface ge-2/0/10.0 set protocols ospf area 0.0.0.0 interface ge-2/0/11.0 set protocols ldp interface ge-2/0/10.0 set protocols ldp interface ge-2/0/11.0 set protocols ldp interface lo0.0 set routing-instances inst512 instance-type vpls set routing-instances inst512 interface ge-2/0/5.0 set routing-instances inst512 route-distinguisher 100:100 set routing-instances inst512 l2vpn-id l2vpn-id:1:2 set routing-instances inst512 vrf-target target:1:1 set routing-instances inst512 protocols vpls mesh-group metro1 vrf-target target:2:1 set routing-instances inst512 protocols vpls mesh-group metro1 route-distinguisher 100:200 set routing-options autonomous-system 64510
设备 R3
set interfaces ge-2/0/10 unit 0 description to_R2 set interfaces ge-2/0/10 unit 0 family inet address 10.10.4.1/30 set interfaces ge-2/0/10 unit 0 family mpls set interfaces ge-2/1/3 encapsulation ethernet-vpls set interfaces ge-2/1/3 unit 0 description to_CE2 set interfaces ge-2/1/3 unit 0 family vpls set interfaces lo0 unit 0 family inet address 192.0.2.3/24 set protocols mpls interface ge-2/0/10.0 set protocols bgp local-address 192.0.2.3 set protocols bgp group pe-pe type internal set protocols bgp group pe-pe connect-retry-interval 1 set protocols bgp group pe-pe family l2vpn auto-discovery-only set protocols bgp group pe-pe family l2vpn signaling set protocols bgp group pe-pe neighbor 192.0.2.2 set protocols bgp group pe-pe neighbor 192.0.2.4 set protocols ospf traffic-engineering set protocols ospf area 0.0.0.0 interface ge-2/0/10.0 set protocols ospf area 0.0.0.0 interface lo0.0 passive set protocols ldp interface ge-2/0/10.0 set protocols ldp interface lo0.0 set routing-instances inst512 instance-type vpls set routing-instances inst512 interface ge-2/1/3.0 set routing-instances inst512 route-distinguisher 100:100 set routing-instances inst512 l2vpn-id l2vpn-id:1:2 set routing-instances inst512 vrf-target target:1:1 set routing-instances inst512 protocols vpls set routing-options autonomous-system 64510
设备 R4
set interfaces ge-2/0/10 unit 0 description to_R2 set interfaces ge-2/0/10 unit 0 family inet address 10.10.5.2/30 set interfaces ge-2/0/10 unit 0 family mpls set interfaces ge-2/1/7 encapsulation ethernet-vpls set interfaces ge-2/1/7 unit 0 description to_CE3 set interfaces ge-2/1/7 unit 0 family vpls set interfaces lo0 unit 0 family inet address 192.0.2.4/24 set protocols mpls interface ge-2/0/10.0 set protocols bgp local-address 192.0.2.4 set protocols bgp group pe-pe type internal set protocols bgp group pe-pe connect-retry-interval 1 set protocols bgp group pe-pe family l2vpn auto-discovery-only set protocols bgp group pe-pe family l2vpn signaling set protocols bgp group pe-pe neighbor 192.0.2.2 set protocols bgp group pe-pe neighbor 192.0.2.3 set protocols ospf traffic-engineering set protocols ospf area 0.0.0.0 interface ge-2/0/10.0 set protocols ospf area 0.0.0.0 interface lo0.0 passive set protocols ldp interface ge-2/0/10.0 set protocols ldp interface lo0.0 set routing-instances inst512 instance-type vpls set routing-instances inst512 interface ge-2/1/7.0 set routing-instances inst512 route-distinguisher 100:100 set routing-instances inst512 l2vpn-id l2vpn-id:1:2 set routing-instances inst512 vrf-target target:1:1 set routing-instances inst512 protocols vpls set routing-options autonomous-system 64510
程序
逐步过程
要配置网格组：
配置接口。
[edit interfaces] user@R2# set ge-2/0/5 encapsulation ethernet-vpls user@R2# set ge-2/0/5 unit 0 description to_CE1 user@R2# set ge-2/0/5 unit 0 family vpls user@R2# set ge-2/0/10 unit 0 description to_R3 user@R2# set ge-2/0/10 unit 0 family inet address 10.10.4.2/30 user@R2# set ge-2/0/10 unit 0 family mpls user@R2# set ge-2/0/11 unit 0 description to_R4 user@R2# set ge-2/0/11 unit 0 family inet address 10.10.5.1/30 user@R2# set ge-2/0/11 unit 0 family mpls user@R2# set lo0 unit 0 family inet address 192.0.2.2/24
在接口上配置 MPLS。
[edit protocols mpls] user@R2# set interface ge-2/0/10.0 user@R2# set interface ge-2/0/11.0
配置 BGP。
[edit protocols bgp] user@R2# set local-address 192.0.2.2 [edit protocols bgp group pe-pe] user@R2# set type internal user@R2# set connect-retry-interval 1 user@R2# set family l2vpn auto-discovery-only user@R2# set family l2vpn signaling user@R2# set neighbor 192.0.2.3 user@R2# set neighbor 192.0.2.4
为默认网格组设置导入和导出路由目标。
[edit protocols ospf] user@R2# set traffic-engineering user@R2# set area 0.0.0.0 interface lo0.0 passive user@R2# set area 0.0.0.0 interface ge-2/0/10.0 user@R2# set area 0.0.0.0 interface ge-2/0/11.0
在面向核心的接口和环路接口上配置 LDP。
[edit protocols ldp] user@R2# set interface ge-2/0/10.0 user@R2# set interface ge-2/0/11.0 user@R2# set interface lo0.0
配置 VPLS 路由实例。
请确保网格组中的路由识别器是唯一的。
[edit routing-instances inst512] user@R2# set instance-type vpls user@R2# set interface ge-2/0/5.0 user@R2# set route-distinguisher 100:100 user@R2# set l2vpn-id l2vpn-id:1:2 user@R2# set vrf-target target:1:1 user@R2# set protocols vpls mesh-group metro1 vrf-target target:2:1 user@R2# set protocols vpls mesh-group metro1 route-distinguisher 100:200
配置自治系统 （AS） 编号。
[edit routing-options] user@R2# set autonomous-system 64510
完成设备配置后，提交配置。
[edit] user@R2# commit
结果
在配置模式下，输入命令以确认 show routing-instances 您的配置。如果输出未显示预期的配置，请重复此示例中的说明，以更正配置。
user@R2# show interfaces
ge-2/0/5 {
encapsulation ethernet-vpls;
unit 0 {
description PE1_to_CE1;
family vpls;
}
}
ge-2/0/10 {
unit 0{
description to_R3;
family inet {
address 10.10.4.2/30;
}
family mpls;
}
}
ge-2/0/11 {
unit 0 {
description to_R4;
family inet {
address 10.10.5.1/30;
}
family mpls;
}
}
lo0 {
unit 0{
family inet {
address 192.0.2.2/24;
}
}
}
user@R2# show protocols
mpls {
interface ge-2/0/10.0;
interface ge-2/0/11.0;
}
bgp {
local-address 192.0.2.2;
group pe-pe {
type internal;
connect-retry-interval 1;
family l2vpn {
auto-discovery-only;
signaling;
}
neighbor 192.0.2.3;
neighbor 192.0.2.4;
}
}
ospf {
traffic-engineering;
area 0.0.0.0 {
interface lo0.0 {
passive;
}
interface ge-2/0/10.0;
interface ge-2/0/11.0;
}
}
ldp {
interface ge-2/0/10.0;
interface ge-2/0/11.0;
interface lo0.0;
}
user@R2# show routing-instances
inst512 {
instance-type vpls;
interface ge-2/0/5.0;
route-distinguisher 100:100;
l2vpn-id l2vpn-id:1:2;
vrf-target target:1:1;
protocols {
vpls {
mesh-group metro1 {
vrf-target target:2:1;
route-distinguisher 100:200;
}
}
}
}
user@R2# show routing-options autonomous-system 64510;
验证
确认配置工作正常。
验证路由
目的
验证是否已学习到预期的路由。
行动
在操作模式下，输入 show route 命令。
user@R2> show route
inet.0: 9 destinations, 9 routes (9 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
192.0.2.2/24 *[Direct/0] 4d 02:42:47
> via lo0.0
192.0.2.3/24 *[OSPF/10] 4d 02:41:56, metric 1
> to 10.10.4.1 via ge-2/0/10.0
192.0.2.4/24 *[OSPF/10] 4d 02:42:01, metric 1
> to 10.10.5.2 via ge-2/0/11.0
10.10.3.2/24 *[Local/0] 4d 02:42:47
Reject
10.10.4.0/30 *[Direct/0] 4d 02:42:46
> via ge-2/0/10.0
10.10.4.2/32 *[Local/0] 4d 02:42:47
Local via ge-2/0/10.0
10.10.5.0/30 *[Direct/0] 4d 02:42:46
> via ge-2/0/11.0
10.10.5.1/32 *[Local/0] 4d 02:42:47
Local via ge-2/0/11.0
203.0.113.0/24 *[OSPF/10] 4d 02:42:49, metric 1
MultiRecv
inet.3: 2 destinations, 2 routes (2 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
192.0.2.3/24 *[LDP/9] 4d 02:01:06, metric 1
> to 10.10.4.1 via ge-2/0/10.0
192.0.2.4/24 *[LDP/9] 4d 02:01:06, metric 1
> to 10.10.5.2 via ge-2/0/11.0
mpls.0: 12 destinations, 12 routes (12 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
0 *[MPLS/0] 4d 02:42:49, metric 1
Receive
1 *[MPLS/0] 4d 02:42:49, metric 1
Receive
2 *[MPLS/0] 4d 02:42:49, metric 1
Receive
13 *[MPLS/0] 4d 02:42:49, metric 1
Receive
299776 *[LDP/9] 4d 02:01:06, metric 1
> to 10.10.5.2 via ge-2/0/11.0, Pop
299776(S=0) *[LDP/9] 4d 02:01:06, metric 1
> to 10.10.5.2 via ge-2/0/11.0, Pop
299792 *[LDP/9] 4d 02:01:06, metric 1
> to 10.10.4.1 via ge-2/0/10.0, Pop
299792(S=0) *[LDP/9] 4d 02:01:06, metric 1
> to 10.10.4.1 via ge-2/0/10.0, Pop
800000 *[VPLS/7] 4d 02:01:05
> via vt-2/0/10.185597952, Pop
800001 *[VPLS/7] 4d 02:01:05
> via vt-2/0/10.185597953, Pop
vt-2/0/10.185597953*[VPLS/7] 4d 02:01:05, metric2 1
> to 10.10.5.2 via ge-2/0/11.0, Push 800001
vt-2/0/10.185597952*[VPLS/7] 4d 02:01:05, metric2 1
> to 10.10.4.1 via ge-2/0/10.0, Push 800001
bgp.l2vpn.0: 2 destinations, 2 routes (2 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
100:100:192.0.2.3/96 AD
*[BGP/170] 4d 02:32:41, localpref 100, from 192.0.2.3
AS path: I, validation-state: unverified
> to 10.10.4.1 via ge-2/0/10.0
100:100:192.0.2.4/96 AD
*[BGP/170] 4d 02:32:41, localpref 100, from 192.0.2.4
AS path: I, validation-state: unverified
> to 10.10.5.2 via ge-2/0/11.0
inst512.l2vpn.0: 8 destinations, 8 routes (8 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
100:100:192.0.2.2/96 AD
*[VPLS/170] 4d 02:01:05, metric2 1
Indirect
100:100:192.0.2.3/96 AD
*[BGP/170] 4d 02:32:41, localpref 100, from 192.0.2.3
AS path: I, validation-state: unverified
> to 10.10.4.1 via ge-2/0/10.0
100:100:192.0.2.4/96 AD
*[BGP/170] 4d 02:32:41, localpref 100, from 192.0.2.4
AS path: I, validation-state: unverified
> to 10.10.5.2 via ge-2/0/11.0
100:200:192.0.2.2/96 AD
*[VPLS/170] 4d 02:01:05, metric2 1
Indirect
192.0.2.3:NoCtrlWord:5:1:2:192.0.2.2:192.0.2.3/176
*[VPLS/7] 4d 02:01:05, metric2 1
> to 10.10.4.1 via ge-2/0/10.0
192.0.2.3:NoCtrlWord:5:1:2:192.0.2.3:192.0.2.2/176
*[LDP/9] 4d 02:01:05
Discard
192.0.2.4:NoCtrlWord:5:1:2:192.0.2.2:192.0.2.4/176
*[VPLS/7] 4d 02:01:05, metric2 1
> to 10.10.5.2 via ge-2/0/11.0
192.0.2.4:NoCtrlWord:5:1:2:192.0.2.4:192.0.2.2/176
*[LDP/9] 4d 02:01:05
Discard
ldp.l2vpn.0: 2 destinations, 2 routes (2 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
192.0.2.3:NoCtrlWord:5:1:2:192.0.2.3:192.0.2.2/176
*[LDP/9] 4d 02:01:05
Discard
192.0.2.4:NoCtrlWord:5:1:2:192.0.2.4:192.0.2.2/176
*[LDP/9] 4d 02:01:05
Discard
意义
输出显示所有学习的路由，包括自动发现 （AD） 路由。
检查连接性
目的
验证设备 CE1 是否可以对设备 CE2 和设备 CE3 执行 ping 操作。
行动
user@CE1> ping 10.255.14.218 PING 10.255.14.218 (10.255.14.218): 56 data bytes 64 bytes from 10.255.14.218: icmp_seq=0 ttl=64 time=0.787 ms 64 bytes from 10.255.14.218: icmp_seq=1 ttl=64 time=0.651 ms ^C --- 10.255.14.218 ping statistics --- 2 packets transmitted, 2 packets received, 0% packet loss round-trip min/avg/max/stddev = 0.651/0.719/0.787/0.068 ms
user@CE1> ping 10.255.14.219 PING 10.255.14.219 (10.255.14.219): 56 data bytes 64 bytes from 10.255.14.219: icmp_seq=0 ttl=64 time=1.054 ms 64 bytes from 10.255.14.219: icmp_seq=1 ttl=64 time=0.669 ms ^C --- 10.255.14.219 ping statistics --- 2 packets transmitted, 2 packets received, 0% packet loss round-trip min/avg/max/stddev = 0.669/0.862/1.054/0.193 ms
意义
输出显示 VPLS 可正常运行。
检查 VPLS 连接
目的
请确保所有 FEC 129 VPLS 连接均正确连接。
行动
user@R2> show vpls connections
Instance: inst512
L2vpn-id: 1:2
Local-id: 192.0.2.2
Mesh-group connections: __ves__
Remote-id Type St Time last up # Up trans
192.0.2.4 rmt Up Oct 26 15:11:56 2012 1
Remote PE: 192.0.2.4, Negotiated control-word: No
Incoming label: 800001, Outgoing label: 800001
Local interface: vt-2/0/10.185597953, Status: Up, Encapsulation: ETHERNET
Description: Intf - vpls inst512 local-id 192.0.2.2 remote-id 192.0.2.4 neighbor 192.0.2.4
192.0.2.3 rmt Up Oct 26 15:11:56 2012 1
Remote PE: 192.0.2.3, Negotiated control-word: No
Incoming label: 800000, Outgoing label: 800001
Local interface: vt-2/0/10.185597952, Status: Up, Encapsulation: ETHERNET
Description: Intf - vpls inst512 local-id 192.0.2.2 remote-id 192.0.2.3 neighbor 192.0.2.3
意义
不出所料，连接已启动。
显示学习的 VPLS MAC 地址信息
目的
验证是否已学习和安装所有 CE 设备的 MAC 地址。
行动
user@R2> show vpls mac-table
MAC flags (S -static MAC, D -dynamic MAC, L -locally learned, C -Control MAC
SE -Statistics enabled, NM -Non configured MAC, R -Remote PE MAC)
Logical system : R2
Routing instance : inst512
Bridging domain : __inst512__, VLAN : NA
MAC MAC Logical NH RTR
address flags interface Index ID
00:21:59:0f:35:32 D ge-2/0/5.0
00:21:59:0f:35:33 D vt-2/0/10.185597952
00:21:59:0f:35:d5 D vt-2/0/10.185597953