8.4 L2VPN－CCC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 |
【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