Jumat, 30 Oktober 2009

MPLS Troubleshooting

Control plane

PE1#sh ip int brief
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 50.50.50.2 YES NVRAM up up
Serial0/0 150.1.1.34 YES manual up up
Serial0/1 150.1.1.18 YES manual up up
Serial0/2 unassigned YES manual administratively down down
Serial0/3 192.168.1.49 YES manual up up
Loopback0 192.168.1.17 YES manual up up

PE1#show ip cef summary
IP CEF with switching (Table Version 18), flags=0x0
18 routes, 0 reresolve, 0 unresolved (0 old, 0 new), peak 6
44 leaves, 46 nodes, 51304 bytes, 52 inserts, 8 invalidations
0 load sharing elements, 0 bytes, 0 references
universal per-destination load sharing algorithm, id C55C895D
3(0) CEF resets, 0 revisions of existing leaves
Resolution Timer: Exponential (currently 1s, peak 1s)
0 in-place/0 aborted modifications
refcounts: 12657 leaf, 12544 node

Table epoch: 0 (18 entries at this epoch)

Adjacency Table has 5 adjacencies

PE1#show mpls forwarding-table
Local Outgoing Prefix Bytes tag Outgoing Next Hop
tag tag or VC or Tunnel Id switched interface
16 Pop tag 192.168.1.81/32 0 Se0/3 point2point
17 Pop tag 192.168.1.64/28 0 Se0/3 point2point
18 16 192.168.1.33/32 0 Se0/3 point2point
19 Untagged 10.1.1.16/28[V] 0 Se0/1 point2point
20 Untagged 10.1.1.49/32[V] 0 Se0/1 point2point
21 Aggregate 150.1.1.16/28[V] 0
22 Untagged 10.2.1.16/28[V] 0 Se0/0 point2point
23 Untagged 10.2.1.49/32[V] 0 Se0/0 point2point
24 Aggregate 150.1.1.32/28[V] 0
 
PE1#sh mpls interfaces
Interface IP Tunnel Operational
Serial0/3 Yes (ldp) No Yes

PE1#show mpls forwarding-table detail | in 150.1.1.16
21 Aggregate 150.1.1.16/28[V] 0
PE1#show mpls forwarding-table detail | b 150.1.1.16
21 Aggregate 150.1.1.16/28[V] 0
MAC/Encaps=0/0, MRU=0, Tag Stack{}
VPN route: Customer_A
No output feature configured
Per-packet load-sharing

PE1#show mpls forwarding-table vrf Customer_A 150.1.1.16 28
Local Outgoing Prefix Bytes tag Outgoing Next Hop
tag tag or VC or Tunnel Id switched interface
21 Aggregate 150.1.1.16/28[V] 0
PE1#show mpls forwarding-table vrf Customer_A 150.1.1.16 28 detail
Local Outgoing Prefix Bytes tag Outgoing Next Hop
tag tag or VC or Tunnel Id switched interface
21 Aggregate 150.1.1.16/28[V] 0
MAC/Encaps=0/0, MRU=0, Tag Stack{}
VPN route: Customer_A
No output feature configured
Per-packet load-sharing

PE1#show tag-switching tdp parameters
Protocol version: 1
Downstream tag generic region: min tag: 16; max tag: 100000
Session hold time: 180 sec; keep alive interval: 60 sec
Discovery hello: holdtime: 15 sec; interval: 5 sec
Discovery directed hello: holdtime: 90 sec; interval: 10 sec
Downstream on Demand max hop count: 255
LDP for directed sessions
LDP initial/maximum backoff: 15/120 sec
LDP loop detection: off

PE1#show mpls ldp parameters
Protocol version: 1
Downstream label generic region: min label: 16; max label: 100000
Session hold time: 180 sec; keep alive interval: 60 sec
Discovery hello: holdtime: 15 sec; interval: 5 sec
Discovery targeted hello: holdtime: 90 sec; interval: 10 sec
Downstream on Demand max hop count: 255
LDP for targeted sessions
LDP initial/maximum backoff: 15/120 sec
LDP loop detection: off