本实验验证四个技术点：
a. 路由协议OSPF的运行
b. MPLS的动态流量工程机制
c. BGP4的EBGP和IBGP
d. 承载10万条BGP路由表能力
2. 实验环境：
实验环境如图：
三台骨干的路由器为Area 0的骨干路由器
R5为STUB Area 1、R6为Total NSSA Area 2
三台骨干的路由器运行流量工程
3. 实验方法：
在如图环境中首先通过一系列命令确认MPLS TE隧道的建立、然后在R5上通过Trace命令分别跟踪R4上不同的端口Lo0和FE0端口。会产生不同的效果、到Lo0会从R2直接通过到达R4、到FE0端口会从R3再到R2到达R4。产生明显的流量工程效果、并能显示出MPLS的标记效果。
在如图环境中通过一系列命令确认OSPF的邻居关系、数据库等是否正常、包括NSSA和STUB域是否正常。
在如图环境中通过一系列命令确认BGP的邻居关系、查看TCP链接、及路由是否正确学到。
4. 配置命令：
mpls traffic-eng tunnels
no mpls traffic-eng auto-bw timers frequency 0
tag-switching tdp router-id Loopback0
!
!
!
!
interface Loopback0
ip address 10.10.10.1 255.255.255.255
no ip directed-broadcast
!
interface Tunnel1
ip unnumbered Loopback0
no ip directed-broadcast
tunnel source Loopback0
tunnel destination 10.10.20.2
tunnel mode mpls traffic-eng
tunnel mpls traffic-eng priority 7 7
tunnel mpls traffic-eng bandwidth 200
tunnel mpls traffic-eng path-option 1 dynamic
!
interface Tunnel2
ip unnumbered Loopback0
no ip directed-broadcast
tunnel source Loopback0
tunnel destination 10.10.20.2
tunnel mode mpls traffic-eng
tunnel mpls traffic-eng priority 7 7
tunnel mpls traffic-eng bandwidth 300
tunnel mpls traffic-eng path-option 1 dynamic
!
interface Multilink1
ip address 10.10.12.1 255.255.255.0
no ip directed-broadcast
mpls traffic-eng tunnels
tag-switching ip
ppp multilink
multilink-group 1
ip rsvp bandwidth 300 300
router ospf 1
router-id 10.10.10.1
log-adjacency-changes
nsf
area 1 stub
passive-interface Loopback0
network 10.10.10.0 0.0.0.255 area 0
network 10.10.11.0 0.0.0.255 area 0
network 10.10.12.0 0.0.0.255 area 0
network 10.10.13.0 0.0.0.255 area 0
network 10.10.15.0 0.0.0.255 area 1
mpls traffic-eng router-id Loopback0
mpls traffic-eng area 0
!
router rip
version 2
network 100.0.0.0
network 222.222.222.0
!
router bgp 100
no synchronization
bgp log-neighbor-changes
neighbor 10.10.20.2 remote-as 100
neighbor 10.10.20.2 update-source Loopback0
neighbor 10.10.30.3 remote-as 100
neighbor 10.10.30.3 update-source Loopback0
no auto-summary
!
ip classless
ip route 10.10.24.44 255.255.255.255 Tunnel2
ip route 10.10.40.4 255.255.255.255 Tunnel1
!
!
logging 10.10.3.99
access-list 101 permit ip 100.100.100.0 0.0.0.255 200.200.200.0 0.0.0.255
route-map MPLStunnel permit 10
match interface FastEthernet2/0/0
set interface Tunnel2
!
route-map MPLStunnel permit 20
match interface FastEthernet2/0/1
set interface Tunnel1
!
5. 确认：
1. OSPF 流量工程:
R1#sh ip rou
Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area
* - candidate default, U - per-user static route, o - ODR
Gateway of last resort is not set
222.222.222.0/24 is variably subnetted, 2 subnets, 2 masks
C 222.222.222.2/32 is directly connected, Serial4/1/3
C 222.222.222.0/24 is directly connected, Serial4/1/3
100.0.0.0/24 is subnetted, 2 subnets
C 100.100.100.0 is directly connected, FastEthernet10/0/0
C 100.100.110.0 is directly connected, FastEthernet10/0/1
10.0.0.0/8 is variably subnetted, 19 subnets, 2 masks
O 10.10.3.0/24 [110/2] via 10.10.13.3, 00:02:25, POS4/0/0
C 10.10.11.0/24 is directly connected, FastEthernet2/0/0
C 10.10.10.1/32 is directly connected, Loopback0
C 10.10.12.0/24 is directly connected, Multilink1
C 10.10.13.0/24 is directly connected, POS4/0/0
C 10.10.12.2/32 is directly connected, Multilink1
C 10.10.15.0/24 is directly connected, FastEthernet2/0/1
--More-- O IA 10.10.22.0/24 [110/3] via 10.10.13.3, 00:02:26, POS4/0/0
O 10.10.20.2/32 [110/3] via 10.10.13.3, 00:02:26, POS4/0/0
O 10.10.23.0/24 [110/2] via 10.10.13.3, 00:02:26, POS4/0/0
O 10.10.24.0/24 [110/3] via 10.10.13.3, 00:02:26, POS4/0/0
O IA 10.10.26.0/24 [110/18] via 10.10.13.3, 00:02:26, POS4/0/0
O 10.10.30.3/32 [110/2] via 10.10.13.3, 00:02:26, POS4/0/0
O 10.10.33.0/24 [110/2] via 10.10.13.3, 00:02:26, POS4/0/0
S 10.10.40.4/32 is directly connected, Tunnel1
S 10.10.24.44/32 is directly connected, Tunnel2
O 10.10.50.5/32 [110/2] via 10.10.15.5, 00:04:51, FastEthernet2/0/1
O E2 10.10.99.0/24 [110/20] via 10.10.13.3, 00:02:26, POS4/0/0
O 10.10.100.0/24 [110/3] via 10.10.13.3, 00:02:27, POS4/0/0
R1# sh mpls tr
R1# sh mpls traffic-eng tu
Name: R1_t1 (Tunnel1) Destination: 10.10.20.2
Status:
Admin: up Oper: up Path: valid Signalling: connected
path option 1, type dynamic (Basis for Setup, path weight 21)
Config Parameters:
Bandwidth: 200 kbps (Global) Priority: 7 7 Affinity: 0x0/0xFFFF
Metric Type: TE (default)
AutoRoute: disabled LockDown: disabled Loadshare: 200 bw-based
auto-bw: disabled
InLabel : -
OutLabel : Multilink1, implicit-null
RSVP Signalling Info:
Src 10.10.10.1, Dst 10.10.20.2, Tun_Id 1, Tun_Instance 262
RSVP Path Info:
My Address: 10.10.10.1
Explicit Route: 10.10.12.2 10.10.20.2
Record Route: NONE
Tspec: ave rate=200 kbits, burst=1000 bytes, peak rate=200 kbits
RSVP Resv Info:
--More-- Record Route: NONE
Fspec: ave rate=200 kbits, burst=1000 bytes, peak rate=Inf
History:
Tunnel:
Time since created: 2 hours, 10 minutes
Time since path change: 2 minutes, 49 seconds
Current LSP:
Uptime: 2 minutes, 49 seconds
Prior LSP:
ID: path option 1 [257]
Removal Trigger: path verification failed
Name: R1_t2 (Tunnel2) Destination: 10.10.20.2
Status:
Admin: up Oper: up Path: valid Signalling: connected
path option 1, type dynamic (Basis for Setup, path weight 2)
Config Parameters:
Bandwidth: 300 kbps (Global) Priority: 7 7 Affinity: 0x0/0xFFFF
Metric Type: TE (default)
AutoRoute: disabled LockDown: disabled Loadshare: 300 bw-based
auto-bw: disabled
--More--
InLabel : -
OutLabel : POS4/0/0, 25
RSVP Signalling Info:
Src 10.10.10.1, Dst 10.10.20.2, Tun_Id 2, Tun_Instance 283
RSVP Path Info:
My Address: 10.10.10.1
Explicit Route: 10.10.13.3 10.10.23.3 10.10.23.2 10.10.20.2
Record Ro