實驗步驟
步驟1：完成EIGRP BGP 及宣告配置
步驟2：完成LDP 的配置
過程校驗
步驟1：校驗和了解LDP 鄰居關系的發現和鄰接關系的建立
R4#show mpls ldp discovery detail
Local LDP Identifier:
4.4.4.4:0
Discovery Sources:
Interfaces:
FastEthernet0/0
(ldp): xmit/recv
Enabled: Interface config
Hello interval: 5000 ms; Transport IP addr: 4.4.4.4
LDP Id: 5.5.5.5:0; no host route to transport addr
Src IP addr: 45.45.45.5; Transport IP addr: 5.5.5.5
Hold time: 15 sec; Proposed local/peer: 15/15 sec
Reachable via 5.5.5.0/24
FastEthernet0/1
LDP Id: 2.2.2.2:0; no host route to transport addr
Src IP addr: 24.24.24.2; Transport IP addr: 2.2.2.2
Reachable via 2.2.2.0/24
步驟2：校驗鄰接關系是否建立
R4#show mpls ldp neighbor
Peer LDP Ident: 2.2.2.2:0; Local LDP Ident 4.4.4.4:0
TCP
connection: 2.2.2.2.646 - 4.4.4.4.58866
State:
Oper; Msgs
sent/rcvd: 32/33; Downstream
Up
time: 00:18:54
LDP
discovery sources:
FastEthernet0/1, Src IP addr: 24.24.24.2
Addresses bound to peer LDP
Ident:
12.12.12.2 24.24.24.2
23.23.23.2 2.2.2.2
Peer LDP Ident: 5.5.5.5:0; Local LDP Ident 4.4.4.4:0
connection: 5.5.5.5.55110 - 4.4.4.4.646
Oper; Msgs sent/rcvd: 32/33; Downstream
time: 00:18:28
FastEthernet0/0, Src IP addr: 45.45.45.5
Addresses bound to peer LDP Ident:
45.45.45.5 56.56.56.5 35.35.35.5 5.5.5.5
步驟3：校驗LDP 的标簽配置設定、分發、關聯
3.1 檢視LIB
R2
R2#show mpls ldp bindings
tib entry: 2.2.2.0/24, rev 4
local
binding: tag: imp-null
remote
binding: tsr: 3.3.3.3:0, tag: 300
binding: tsr: 4.4.4.4:0, tag: 401
……………………………………
tib entry: 5.5.5.0/24, rev 10
binding: tag: 203
binding: tsr: 3.3.3.3:0, tag: 302
binding: tsr: 4.4.4.4:0, tag: 403
…………………………………
R4
R4#show mpls ldp bindings
binding: tag: 401
binding: tsr: 2.2.2.2:0, tag: imp-null
binding: tsr: 5.5.5.5:0, tag: 500
…………………………
binding: tag: 403
binding: tsr: 2.2.2.2:0, tag: 203
binding: tsr: 5.5.5.5:0, tag: imp-null
R5#show mpls ldp bindings
binding: tag: 500
此時利用show mpls ldp neighbor 擷取對端裝置共享的綁定位址
利用show ip route 檢視目标網絡真實下一跳位址
确認擁有下一跳位址和綁定位址重樣的裝置遠端标簽被關聯
3.2 檢視LFIB 确認正确的了解和分析了标簽關聯過程
R2#show mpls forwarding-table
Local Outgoing Prefix Bytes tag Outgoing Next Hop
tag tag or VC or Tunnel Id switched interface
200 400 35.35.35.0/24 0 Fa0/1 24.24.24.4
201 Pop tag 3.3.3.0/24 0 Se1/0 point2point
202 Pop tag 4.4.4.0/24 0 Fa0/1 24.24.24.4
203 403 5.5.5.0/24 0 Fa0/1
24.24.24.4
204 Pop tag 45.45.45.0/24 0 Fa0/1 24.24.24.4
R4#show mpls forwarding-table
400 Pop tag 35.35.35.0/24 0 Fa0/0 45.45.45.5
401 Pop tag 2.2.2.0/24 8444
Fa0/1 24.24.24.2
402 501 3.3.3.0/24 0 Fa0/0 45.45.45.5
201 3.3.3.0/24 0 Fa0/1 24.24.24.2
403 Pop tag 5.5.5.0/24 5258
Fa0/0 45.45.45.5
404 Pop tag 23.23.23.0/24 0 Fa0/1 24.24.24.2
R4#
R5#show mpls forwarding-table
500 401 2.2.2.0/24 0 Fa0/0
45.45.45.4
R5#