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配置虚拟集群接入承载以太业务（多基站不同IP网段）示例
本例描述了在多基站不同IP网段场景中采用虚拟集群接入技术在IP RAN网络中承载业务的基本配置过程。
组网需求
如图2-9所示，AP1、AP2为接入设备，负责连接基站，Master设备分为一主一备，在四台设备上配置虚拟集群接入，配置完成后，将建立AP节点到Master节点的VP路径及VC连接，以承载基站传输过来的数据报文。现在需要让虚拟集群接入内部的设备与集群外设备互通并一起完成IP
RAN业务的端到端承载。此时，可以在Master设备上配置虚拟集群接入VC接入L3VPN，达到上述目的。
表2-4 接口及IP地址
设备 |
接口 |
IP地址 |
|---|---|---|
AP1 |
Loopback0 |
3.1.2.9/32 |
GigabitEthernet0/1/1 |
3.4.0.3/30 |
|
GigabitEthernet0/1/3 |
3.7.1.3/30 |
|
GigabitEthernet0/1/7 |
- |
|
AP2 |
Loopback0 |
4.1.2.9/32 |
GigabitEthernet0/1/1 |
3.4.0.4/30 |
|
GigabitEthernet0/1/3 |
4.8.0.4/30 |
|
Master1 |
Loopback0 |
7.1.2.9/32 |
GigabitEthernet0/1/0 |
7.8.0.7/30 | |
GigabitEthernet0/1/1 |
2.7.0.7/30 |
|
GigabitEthernet0/1/2 |
3.7.1.7/30 |
|
Master2 |
Loopback0 |
8.1.2.9/32 |
GigabitEthernet0/1/0 |
7.8.0.8/30 |
|
GigabitEthernet0/1/1 |
2.8.0.8/30 |
|
GigabitEthernet0/1/3 |
4.8.0.8/30 |
|
| RSG | Loopback0 |
2.1.2.9/32 |
GigabitEthernet0/1/2 |
2.4.0.2/30 |
|
GigabitEthernet0/1/4 |
2.8.0.2/30 | |
GigabitEthernet0/1/5 |
1.2.0.2/30 |
配置思路
采用如下的思路配置IP RAN虚拟集群接入：
配置各节点接口的IP地址及作为管理IP的Loopback接口的地址。
配置Master节点和RSG节点上的MP-BGP、MPLS、L3VPN实例，以完成集群外L3VPN的配置。
使能Master和AP上全局和接口下虚拟集群接入的使能、配置各节点的管理IP以及AP所属的主备Master，以便完成虚拟集群接入的配置。
配置Remote-AP接口的IP地址，并将Remote-AP接口与L3VPN实例绑定，以完成VC接入L3VPN。
数据准备
为完成此配置例，需准备如下的数据：
各节点上直连接口的IP地址和Loopback接口的地址如图2-9所示。
AP1和AP2所属的主Master是Master1，备份Master是Master2。
Master1节点上Remote-AP接口的编号为1、IP地址为10.1.1.1/24，Master2上Remote-AP接口的编号为2、IP地址为10.1.1.1/24。
操作步骤
- 配置各节点接口的IP地址及作为管理IP的Loopback接口的地址
配置各接口的IP地址和掩码，具体配置过程请参照配置文件。
- 配置Master节点和RSG节点上的MP-BGP、MPLS、L3VPN实例
具体配置过程请参照配置文件。
- 使能Master和AP上全局和接口下虚拟集群接入的使能、配置各节点的管理IP以及AP所属的主备Master
具体配置过程请参照配置文件。
- 置Remote-AP接口的IP地址，并将Remote-AP接口与L3VPN实例绑定
# 配置Master1。
<Master1> system-view [~Master1] interface Remote-Ap 1 [*Master1-Remote-Ap1] ip binding vpn-instance a [*Master1-Remote-Ap1] ip address 10.1.1.1 255.255.255.0 [*Master1-Remote-Ap1] bind ap ip 3.1.2.9 interface GigabitEthernet0/1/7 [*Master1-Remote-Ap1] connect-slot 9 [*Master1-Remote-Ap1] commit [~Master1-Remote-Ap1] quit
# 配置Master2。
<Master2> system-view [~Master2] interface Remote-Ap 2 [*Master2-Remote-Ap2] ip binding vpn-instance a [*Master2-Remote-Ap2] ip address 10.1.1.1 255.255.255.0 [*Master2-Remote-Ap2] bind ap ip 3.1.2.9 interface GigabitEthernet0/1/7 [*Master2-Remote-Ap2] connect-slot 9 [*Master2-Remote-Ap2] commit [~Master2-Remote-Ap2] quit
- 检查配置结果
配置完成后，在各节点上执行display virtual-cluster-access vc命令，可以看到虚拟集群接入的VC状态为Up。以Master1为例：
[~Master1] display virtual-cluster-access vc -------------------------------------------------------------------------------- MasterID ApID State ApIF -------------------------------------------------------------------------------- 7.1.2.9 3.1.2.9 Up GigabitEthernet0/1/7
配置文件
AP1的配置文件
# sysname AP1 # bfd # virtual-cluster-access role ap admin 3.1.2.9 master primary 7.1.2.9 master secondary 8.1.2.9 # isis 65534 description auto-generated for virtual-cluster-access is-level level-1 cost-style wide auto-cost enable virtual-cluster-access enable network-entity 10.0000.0000.0003.00 # interface GigabitEthernet0/1/1 undo shutdown ip address 3.4.0.3 255.255.255.252 virtual-cluster-access enable isis enable 65534 # interface GigabitEthernet0/1/3 undo shutdown ip address 3.7.1.3 255.255.255.252 virtual-cluster-access enable isis enable 65534 # interface LoopBack0 ip address 3.1.2.9 255.255.255.255 isis enable 65534 # return
AP2的配置文件
# sysname AP2 # bfd # virtual-cluster-access role ap admin 4.1.2.9 master primary 7.1.2.9 master secondary 8.1.2.9 # isis 65534 description auto-generated for virtual-cluster-access is-level level-1 cost-style wide auto-cost enable virtual-cluster-access enable network-entity 10.0000.0000.0004.00 # interface GigabitEthernet0/1/1 undo shutdown ip address 3.4.0.4 255.255.255.252 virtual-cluster-access enable isis enable 65534 # interface GigabitEthernet0/1/3 undo shutdown ip address 4.8.0.4 255.255.255.252 virtual-cluster-access enable isis enable 65534 # interface LoopBack0 ip address 4.1.2.9 255.255.255.255 isis enable 65534 # return
Master1的配置文件
# sysname Master1 # ip vpn-instance a ipv4-family route-distinguisher 1:1 vpn-target 1:1 export-extcommunity vpn-target 1:100 export-extcommunity vpn-target 1:1 import-extcommunity vpn-target 1:100 import-extcommunity # bfd # mpls lsr-id 7.1.2.9 # mpls # mpls ldp graceful-restart # ipv4-family # virtual-cluster-access role master admin 7.1.2.9 # isis 65534 description auto-generated for virtual-cluster-access is-level level-1 cost-style wide auto-cost enable virtual-cluster-access enable network-entity 10.0000.0000.0007.00 # interface GigabitEthernet0/1/0 undo shutdown ip address 7.8.0.7 255.255.255.252 # interface GigabitEthernet0/1/1 undo shutdown ip address 2.7.0.7 255.255.255.252 mpls mpls ldp # interface GigabitEthernet0/1/2 undo shutdown ip address 3.7.1.7 255.255.255.252 isis enable 65534 mpls virtual-cluster-access enable # interface LoopBack0 ip address 7.1.2.9 255.255.255.255 isis enable 65534 # interface Remote-Ap1 undo shutdown ip binding vpn-instance a ip address 10.1.1.1 255.255.255.0 bind ap ip 3.1.2.9 interface GigabitEthernet0/1/7 connect-slot 9 # bgp 100 peer 2.1.2.9 as-number 100 peer 2.1.2.9 connect-interface LoopBack0 # ipv4-family unicast import-route direct peer 2.1.2.9 enable # ipv4-family vpnv4 policy vpn-target peer 2.1.2.9 enable # ipv4-family vpn-instance a import-route direct med 10 # ospf 1 router-id 7.1.2.9 opaque-capability enable graceful-restart area 0.0.0.0 network 2.7.0.0 0.0.0.255 network 7.1.2.9 0.0.0.0 # return
- Master2的配置文件
# sysname Master2 # ip vpn-instance a ipv4-family route-distinguisher 1:1 vpn-target 1:1 export-extcommunity vpn-target 1:1 import-extcommunity # bfd # mpls lsr-id 8.1.2.9 # mpls # mpls ldp graceful-restart # ipv4-family # virtual-cluster-access role master admin 8.1.2.9 # isis 65534 description auto-generated for virtual-cluster-access is-level level-1 cost-style wide auto-cost enable virtual-cluster-access enable network-entity 10.0000.0000.0008.00 # interface GigabitEthernet0/1/0 undo shutdown ip address 7.8.0.8 255.255.255.252 # interface GigabitEthernet0/1/1 undo shutdown ip address 2.8.0.8 255.255.255.252 mpls mpls ldp # interface GigabitEthernet0/1/3 undo shutdown ip address 4.8.0.8 255.255.255.252 isis enable 65534 mpls virtual-cluster-access enable # interface LoopBack0 ip address 8.1.2.9 255.255.255.255 isis enable 65534 # interface Remote-Ap2 undo shutdown ip binding vpn-instance a ip address 10.1.1.1 255.255.255.0 bind ap ip 3.1.2.9 interface GigabitEthernet0/1/7 connect-slot 9 # bgp 100 peer 2.1.2.9 as-number 100 peer 2.1.2.9 connect-interface LoopBack0 # ipv4-family unicast import-route direct peer 2.1.2.9 enable # ipv4-family vpnv4 policy vpn-target peer 2.1.2.9 enable # ipv4-family vpn-instance a import-route direct med 20 # ospf 1 router-id 8.1.2.9 opaque-capability enable graceful-restart area 0.0.0.0 network 2.8.0.0 0.0.0.255 network 8.1.2.9 0.0.0.0 # return
- RSG的配置文件
# sysname RSG # ip vpn-instance a ipv4-family route-distinguisher 1:1 vpn-target 1:1 export-extcommunity vpn-target 1:1 import-extcommunity # mpls lsr-id 2.1.2.9 # mpls label advertise non-null # mpls ldp graceful-restart # interface GigabitEthernet0/1/2 undo shutdown ip address 2.7.0.2 255.255.255.252 mpls mpls ldp # interface GigabitEthernet0/1/4 undo shutdown ip address 2.8.0.2 255.255.255.252 mpls mpls ldp # interface GigabitEthernet0/1/5 undo shutdown ip binding vpn-instance a ip address 1.2.0.2 255.255.255.252 # interface LoopBack0 ip address 2.1.2.9 255.255.255.255 # bgp 100 peer 7.1.2.9 as-number 100 peer 7.1.2.9 connect-interface LoopBack0 peer 8.1.2.9 as-number 100 peer 8.1.2.9 connect-interface LoopBack0 # ipv4-family unicast import-route direct peer 7.1.2.9 enable peer 8.1.2.9 enable # ipv4-family vpnv4 policy vpn-target peer 7.1.2.9 enable peer 8.1.2.9 enable # ipv4-family vpn-instance a import-route direct peer 1.2.0.1 as-number 500 # ospf 1 router-id 2.1.2.9 opaque-capability enable graceful-restart area 0.0.0.0 network 2.1.2.9 0.0.0.0 network 2.7.0.0 0.0.0.255 network 2.8.0.0 0.0.0.255 # return
