AR28/AR46系列路由器L2VPN-CCC方式典型配置

AR28/AR48系列路由器L2VPN-CCC方式典型配置

【需求】

CE-A的S2/0/0和CE-B的S2/0/0之间建立一条本地的CCC连接，CE-A的S2/0/1和CE-C的S2/0/0

建立一条远程的CCC连接。

 

【组网图】

 

【配置脚本】

CE-A配置脚本

# sysname CE-A # radius scheme system # domain system # interface Serial2/0/0 link-protocol ppp ip address 192.168.11.1 255.255.255.0 # interface Serial2/0/1 link-protocol ppp ip address 192.168.21.1 255.255.255.0 # interface NULL0 # user-interface con 0 user-interface vty 0 4 # return

CE-B配置脚本

# sysname CE-B # radius scheme system # domain system # interface Serial2/0/0 link-protocol ppp ip address 192.168.11.2 255.255.255.0 # interface NULL0 # user-interface con 0 user-interface vty 0 4 # return

PE-A配置脚本

# sysname PE-A # router id 1.1.1.1 # mpls lsr-id 1.1.1.1 # mpls l2vpn        /启用MPLS L2VPN/ # radius scheme system # mpls static-lsp ingress PEA-PEB l2vpn outgoing-interface Serial2/0/3 out-label 100 /配置用于l2vpn的静态LSP/ static-lsp egress PEB-PEA l2vpn incoming-interface Serial2/0/3 in-label 201 /配置用于l2vpn的静态LSP/ # domain system # interface Serial2/0/0 link-protocol ppp # interface Serial2/0/1 link-protocol ppp # interface Serial2/0/2 link-protocol ppp # interface Serial2/0/3 link-protocol ppp ip address 10.0.0.1 255.255.255.252 mpls # interface NULL0 # interface LoopBack0 ip address 1.1.1.1 255.255.255.255 # ccc local-to-CEB interface Serial2/0/0 out-interface Serial2/0/2 /创建CCC本地连接/ ccc remote-to-CEC interface Serial2/0/1 transmit-lsp PEA-PEB receive-lsp PEB-PEA /创建CCC远程连接/ # user-interface con 0 user-interface vty 0 4 # return

P配置脚本

# sysname P # router id 2.2.2.2 # mpls lsr-id 2.2.2.2 # mpls l2vpn            /启用MPLS L2VPN/ # radius scheme system # mpls static-lsp transit PEA-PEB l2vpn incoming-interface Serial2/0/0 in-label 100 outgoing-interface Serial2/0/1 out-label 101 /配置用于l2vpn的静态LSP/ static-lsp transit PEB-PEA l2vpn incoming-interface Serial2/0/1 in-label 200 outgoing-interface Serial2/0/0 out-label 201 /配置用于l2vpn的静态LSP/ # domain system # interface Serial2/0/0 link-protocol ppp ip address 10.0.0.2 255.255.255.252 mpls # interface Serial2/0/1 link-protocol ppp ip address 10.0.0.5 255.255.255.252 mpls # interface NULL0 # interface LoopBack0 ip address 2.2.2.2 255.255.255.255 # user-interface con 0 user-interface vty 0 4 # return

PE-B配置脚本

# sysname PE-B # router id 3.3.3.3 # mpls lsr-id 3.3.3.3 # mpls l2vpn                /启用MPLS L2VPN/ # # radius scheme system # mpls static-lsp ingress PEB-PEA l2vpn outgoing-interface Serial2/0/0 out-label 200 /配置用于l2vpn的静态LSP/ static-lsp egress PEA-PEB l2vpn incoming-interface Serial2/0/0 in-label 101 /配置用于l2vpn的静态LSP/ # domain system # interface Serial2/0/0 link-protocol ppp ip address 10.0.0.6 255.255.255.252 mpls # interface Serial2/0/1 link-protocol ppp # interface NULL0 # interface LoopBack0 ip address 3.3.3.3 255.255.255.255 # ccc remote-to-CEA interface Serial2/0/1 transmit-lsp PEB-PEA receive-lsp PEA-PEB /创建CCC远程连接/ # user-interface con 0 user-interface vty 0 4 # return

CE-C配置脚本

# sysname CE-C # radius scheme system # domain system # interface Serial2/0/0 link-protocol ppp ip address 192.168.21.2 255.255.255.0 # interface NULL0 # user-interface con 0 user-interface vty 0 4 # return

 

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【验证】

查看PE-A的CCC连接状态

<PE-A>disp ccc

total  connections : 2

local  connections : 1,  1 up

remote connections : 1,  1 up

 

name: local-to-CEB, type: local, state: up,

intf1: Serial2/0/0 (up),   intf2: Serial2/0/2 (up)

 

name: remote-to-CEC, type: remote, state: up,

intf: Serial2/0/1 (up), tran-lsp: PEA-PEB (up), rcv-lsp: PEB-PEA (up)

 

查看PE-A的静态LSP

<PE-A>disp mpls lsp

 

-----------------------------------------------------------------------

LSP Information: Static Lsp

-----------------------------------------------------------------------

 

TOTAL:  2 Record(s) Found.

 

NO    FEC                 NEXTHOP         I/O-LABEL    OUT-INTERFACE

1     0.0.0.0/0           -------         -----/100    S2/0/3

2     -------/--          -------         201/-----    -------

 

查看P的静态LSP

<P>disp mpls lsp

 

-----------------------------------------------------------------------

LSP Information: Static Lsp

-----------------------------------------------------------------------

 

TOTAL:  2 Record(s) Found.

 

NO    FEC                 NEXTHOP         I/O-LABEL    OUT-INTERFACE

1     -------/--          -------         100/101      S2/0/1

2     -------/--          -------         200/201      S2/0/0

 

查看PE-B的静态LSP

<PE-B>disp mpls lsp

 

-----------------------------------------------------------------------

LSP Information: Static Lsp

-----------------------------------------------------------------------

 

TOTAL:  2 Record(s) Found.

 

NO    FEC                 NEXTHOP         I/O-LABEL    OUT-INTERFACE

1     0.0.0.0/0           -------         -----/200    S2/0/0

2     -------/--          -------         101/-----    -------

 

【提示】

1、 CCC是Circuit Cross Connect（电路交叉连接）的缩写，是通过配置静态LSP来实现MPLS L2VPN的一种方式。

 

2、 必须逐一在每个节点上（包括PE、P）单独为每一个CCC连接手工配置两条LSP（两个方向各一条），这两条LSP将只能用于传递这个CCC连接的数据，不能用于其他MPLS L2VPN连接，也不能用于BGP/MPLS VPN或承载普通的IP报文。

 

3、 CCC方式只有一层标签