Sham-link & MPLS enable

### R4 - R5 間で "mpls ip" enable 前 ###

R5#os sham
Sham Link OSPF_SL0 to address 18.18.100.4 is up
Area 0 source address 18.18.100.5
  Run as demand circuit
  DoNotAge LSA allowed. Cost of using 1 State POINT_TO_POINT,
  Timer intervals configured, Hello 10, Dead 40, Wait 40,
    Hello due in 00:00:00

R4#sh ip ospf sham-links
Sham Link OSPF_SL1 to address 18.18.100.5 is up
Area 0 source address 18.18.100.4
  Run as demand circuit
  DoNotAge LSA allowed. Cost of using 1 State POINT_TO_POINT,
  Timer intervals configured, Hello 10, Dead 40, Wait 40,
    Hello due in 00:00:03

### R4 - R5 間で "mpls ip" enable 後 ###

"Adjacency State FULL" を確認する必要あり。


R5#os sham
Sham Link OSPF_SL0 to address 18.18.100.4 is up
Area 0 source address 18.18.100.5
  Run as demand circuit
  DoNotAge LSA allowed. Cost of using 1 State POINT_TO_POINT,
  Timer intervals configured, Hello 10, Dead 40, Wait 40,
    Hello due in 00:00:05
    Adjacency State FULL (Hello suppressed)
    Index 2/3, retransmission queue length 0, number of retransmission 0
    First 0x0(0)/0x0(0) Next 0x0(0)/0x0(0)
    Last retransmission scan length is 0, maximum is 0
    Last retransmission scan time is 0 msec, maximum is 0 msec



R4#os sham
Sham Link OSPF_SL1 to address 18.18.100.5 is up
Area 0 source address 18.18.100.4
  Run as demand circuit
  DoNotAge LSA allowed. Cost of using 1 State POINT_TO_POINT,
  Timer intervals configured, Hello 10, Dead 40, Wait 40,
    Hello due in 00:00:02
    Adjacency State FULL (Hello suppressed)
    Index 2/3, retransmission queue length 0, number of retransmission 0
    First 0x0(0)/0x0(0) Next 0x0(0)/0x0(0)
    Last retransmission scan length is 0, maximum is 0
    Last retransmission scan time is 0 msec, maximum is 0 msec