Show LDP Label Information Base (LIB) or TIB
December 31, 2006 at 6:19 pm | Posted in Blogroll | Leave a commentP1#sh tag-switching tdp ?
bindings Show the TDP Tag Information Base (TIB))
discovery Display sources for locally generated TDP Discovery Hello PDUs
neighbor Display TDP neighbor information
parameters Display TDP configuration parameters
P1#sh tag-switching tdp bindings
tib entry: 50.50.50.0/24, rev 2
local binding: tag: imp-null
remote binding: tsr: 192.168.1.33:0, tag: imp-null
remote binding: tsr: 192.168.1.17:0, tag: imp-null
tib entry: 192.168.1.17/32, rev 18
local binding: tag: 17
remote binding: tsr: 192.168.1.33:0, tag: 24
remote binding: tsr: 192.168.1.17:0, tag: imp-null
tib entry: 192.168.1.33/32, rev 10
local binding: tag: 16
remote binding: tsr: 192.168.1.33:0, tag: imp-null
remote binding: tsr: 192.168.1.17:0, tag: 18
tib entry: 192.168.1.48/28, rev 16
local binding: tag: imp-null
remote binding: tsr: 192.168.1.33:0, tag: 23
remote binding: tsr: 192.168.1.17:0, tag: imp-null
tib entry: 192.168.1.64/28, rev 8
local binding: tag: imp-null
remote binding: tsr: 192.168.1.33:0, tag: imp-null
remote binding: tsr: 192.168.1.17:0, tag: 17
tib entry: 192.168.1.81/32, rev 4
local binding: tag: imp-null
remote binding: tsr: 192.168.1.33:0, tag: 19
remote binding: tsr: 192.168.1.17:0, tag: 16
P1#sh mpls ldp ?
backoff LDP session setup backoff table
bindings Show the LDP Label Information Base (LIB))
discovery Display sources for locally generated LDP Discovery Hello PDUs
neighbor Display LDP neighbor information
parameters Display LDP configuration parameters
P1#sh mpls ldp bindings
tib entry: 50.50.50.0/24, rev 2
local binding: tag: imp-null
remote binding: tsr: 192.168.1.33:0, tag: imp-null
remote binding: tsr: 192.168.1.17:0, tag: imp-null
tib entry: 192.168.1.17/32, rev 18
local binding: tag: 17
remote binding: tsr: 192.168.1.33:0, tag: 24
remote binding: tsr: 192.168.1.17:0, tag: imp-null
tib entry: 192.168.1.33/32, rev 10
local binding: tag: 16
remote binding: tsr: 192.168.1.33:0, tag: imp-null
remote binding: tsr: 192.168.1.17:0, tag: 18
tib entry: 192.168.1.48/28, rev 16
local binding: tag: imp-null
remote binding: tsr: 192.168.1.33:0, tag: 23
remote binding: tsr: 192.168.1.17:0, tag: imp-null
tib entry: 192.168.1.64/28, rev 8
local binding: tag: imp-null
remote binding: tsr: 192.168.1.33:0, tag: imp-null
remote binding: tsr: 192.168.1.17:0, tag: 17
tib entry: 192.168.1.81/32, rev 4
local binding: tag: imp-null
remote binding: tsr: 192.168.1.33:0, tag: 19
remote binding: tsr: 192.168.1.17:0, tag: 16
Traffic Engineering – a simple configuration
December 10, 2006 at 11:46 pm | Posted in Blogroll, MPLS, Traffic Engineering | Leave a commentMPLS TE configuration
hostname PE1
!
mpls traffic-eng tunnels
!
interface Tunnel0
ip unnumbered Loopback0
tunnel destination 192.168.1.33
tunnel mode mpls traffic-eng
tunnel mpls traffic-eng priority 7 7
tunnel mpls traffic-eng bandwidth 50
tunnel mpls traffic-eng path-option 10 dynamic
!
interface Loopback0
ip address 192.168.1.17 255.255.255.255
!
interface Serial0/3
ip address 192.168.1.49 255.255.255.240
mpls traffic-eng tunnels
tag-switching ip
clockrate 64000
ip rsvp bandwidth 100 100
!
router ospf 1
mpls traffic-eng router-id Loopback0
mpls traffic-eng area 0
log-adjacency-changes
network 192.168.1.0 0.0.0.255 area 0
!**************************************************
hostname P1
mpls traffic-eng tunnels
!
interface Loopback0
ip address 192.168.1.81 255.255.255.255
!
interface Serial0/0
ip address 192.168.1.50 255.255.255.240
mpls traffic-eng tunnels
tag-switching ip
ip rsvp bandwidth 100 100
!
interface Serial0/1
ip address 192.168.1.66 255.255.255.240
mpls traffic-eng tunnels
tag-switching ip
ip rsvp bandwidth 100 100
!
router ospf 1
mpls traffic-eng router-id Loopback0
mpls traffic-eng area 0
log-adjacency-changes
network 192.168.1.0 0.0.0.255 area 0
!**************************************************
hostname PE2
!
mpls traffic-eng tunnels
interface Loopback0
ip address 192.168.1.33 255.255.255.255
!
interface Tunnel0
ip unnumbered Loopback0
tunnel destination 192.168.1.17
tunnel mode mpls traffic-eng
tunnel mpls traffic-eng priority 7 7
tunnel mpls traffic-eng bandwidth 50
tunnel mpls traffic-eng path-option 10 dynamic
!
interface Serial0/3
ip address 192.168.1.65 255.255.255.240
mpls traffic-eng tunnels
tag-switching ip
clockrate 64000
ip rsvp bandwidth 100 100
!
router ospf 1
mpls traffic-eng router-id Loopback0
mpls traffic-eng area 0
log-adjacency-changes
network 192.168.1.0 0.0.0.255 area 0
!**************************************************
PE1#sh mpls traffic-eng tunnels summary
Signalling Summary:
LSP Tunnels Process: running
RSVP Process: running
Forwarding: enabled
Head: 1 interfaces, 1 active signalling attempts, 1 established
1 activations, 0 deactivations
Midpoints: 0, Tails: 1
Periodic reoptimization: every 3600 seconds, next in 3298 seconds
Periodic auto-bw collection: disabled
PE1#sh mpls traffic-eng tunnels Tunnel0
Name: PE1_t0 (Tunnel0) Destination: 192.168.1.33
Status:
Admin: up Oper: up Path: valid Signalling: connected
path option 10, type dynamic (Basis for Setup, path weight 128)
Config Parameters:
Bandwidth: 50 kbps (Global) Priority: 7 7 Affinity: 0x0/0xFFFF
Metric Type: TE (default)
AutoRoute: disabled LockDown: disabled Loadshare: 50 bw-based
auto-bw: disabled
InLabel : -
OutLabel : Serial0/3, 19
RSVP Signalling Info:
Src 192.168.1.17, Dst 192.168.1.33, Tun_Id 0, Tun_Instance 120
RSVP Path Info:
My Address: 192.168.1.17
Explicit Route: 192.168.1.50 192.168.1.65 192.168.1.33
Record Route: NONE
Tspec: ave rate=50 kbits, burst=1000 bytes, peak rate=50 kbits
RSVP Resv Info:
Record Route: NONE
Fspec: ave rate=50 kbits, burst=1000 bytes, peak rate=50 kbits
Shortest Unconstrained Path Info:
Path Weight: 128 (TE)
Explicit Route: 192.168.1.50 192.168.1.65 192.168.1.33
History:
Tunnel:
Time since created: 59 minutes, 10 seconds
Time since path change: 3 minutes, 49 seconds
Current LSP:
Uptime: 3 minutes, 49 seconds
PE1#show mpls traffic-eng tunnels
Name: PE1_t0 (Tunnel0) Destination: 192.168.1.33
Status:
Admin: up Oper: up Path: valid Signalling: connected
path option 10, type dynamic (Basis for Setup, path weight 1064)
Config Parameters:
Bandwidth: 50 kbps (Global) Priority: 7 7 Affinity: 0x0/0xFFFF
Metric Type: TE (default)
AutoRoute: disabled LockDown: disabled Loadshare: 50 bw-based
auto-bw: disabled
InLabel : -
OutLabel : Serial0/3, 19
RSVP Signalling Info:
Src 192.168.1.17, Dst 192.168.1.33, Tun_Id 0, Tun_Instance 120
RSVP Path Info:
My Address: 192.168.1.17
Explicit Route: 192.168.1.50 192.168.1.65 192.168.1.33
Record Route: NONE
Tspec: ave rate=50 kbits, burst=1000 bytes, peak rate=50 kbits
RSVP Resv Info:
Record Route: NONE
Fspec: ave rate=50 kbits, burst=1000 bytes, peak rate=50 kbits
History:
Tunnel:
Time since created: 1 hours, 4 minutes
Time since path change: 8 minutes, 48 seconds
Current LSP:
Uptime: 8 minutes, 48 seconds
LSP Tunnel PE2_t0 is signalled, connection is up
InLabel : Serial0/3, implicit-null
OutLabel : -
RSVP Signalling Info:
Src 192.168.1.33, Dst 192.168.1.17, Tun_Id 0, Tun_Instance 69
RSVP Path Info:
My Address: 192.168.1.17
Explicit Route: NONE
Record Route: NONE
Tspec: ave rate=50 kbits, burst=1000 bytes, peak rate=50 kbits
RSVP Resv Info:
Record Route: NONE
Fspec: ave rate=50 kbits, burst=1000 bytes, peak rate=50 kbits
PE1#show ip rsvp interface
interface allocated i/f max flow max sub max
Se0/3 50K 100K 100K 0
PE1#show mpls traffic-eng topology 192.168.1.33
IGP Id: 192.168.1.33, MPLS TE Id:192.168.1.33 Router Node id 2
link[0 ]:Nbr IGP Id: 192.168.1.81, nbr_node_id:3, gen:6
frag_id 0, Intf Address:192.168.1.65, Nbr Intf Address:192.168.1.66
TE metric:64, IGP metric:64, attribute_flags:0x0
physical_bw: 1544 (kbps), max_reservable_bw_global: 100 (kbps)
max_reservable_bw_sub: 0 (kbps)
Global Pool Sub Pool
Total Allocated Reservable Reservable
BW (kbps) BW (kbps) BW (kbps)
--------------- ----------- ----------
bw[0]: 0 100 0
bw[1]: 0 100 0
bw[2]: 0 100 0
bw[3]: 0 100 0
bw[4]: 0 100 0
bw[5]: 0 100 0
bw[6]: 0 100 0
bw[7]: 50 50 0
Show MPLS label stack
December 10, 2006 at 6:35 pm | Posted in Blogroll, MPLS, Traffic Engineering, VPN | Leave a commentBellow outputs are for VPN scenario
PE1#sh mpls forwarding-table vrf Customer_A
Local Outgoing Prefix Bytes tag Outgoing Next Hop
tag tag or VC or Tunnel Id switched interface
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
PE1#sh mpls forwarding-table vrf Customer_A 150.1.2.16 detail
Local Outgoing Prefix Bytes tag Outgoing Next Hop
tag tag or VC or Tunnel Id switched interface
None 16 150.1.2.16/28 0 Se0/3 point2point
MAC/Encaps=4/12, MRU=1496, Tag Stack{16 20}
0F008847 0001000000014000
No output feature configured
Per-packet load-sharing
PE1#sh mpls forwarding-table vrf Customer_B
Local Outgoing Prefix Bytes tag Outgoing Next Hop
tag tag or VC or Tunnel Id switched interface
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 forwarding-table vrf Customer_B 150.1.2.32 detail
Local Outgoing Prefix Bytes tag Outgoing Next Hop
tag tag or VC or Tunnel Id switched interface
None 16 150.1.2.32/28 0 Se0/3 point2point
MAC/Encaps=4/12, MRU=1496, Tag Stack{16 16}
0F008847 0001000000010000
No output feature configured
Per-packet load-sharing
PE1#sh mpls forwarding-table 192.168.1.33 detail
Local Outgoing Prefix Bytes tag Outgoing Next Hop
tag tag or VC or Tunnel Id switched interface
18 16 192.168.1.33/32 0 Se0/3 point2point
MAC/Encaps=4/8, MRU=1500, Tag Stack{16}
0F008847 00010000
No output feature configured
Per-packet load-sharing
In the above scenario the first label, 16, is for the loopback address of the router PE2, second (bottom) label 20 and 16 are for identifying VPN Customer_A and Customer_B respectively.
In the below scenario, MPLS is used for Traffic Engineering purpose.
7200a#show mpls forwarding 13.13.13.13 detail
Local Outgoing Prefix Bytes tag Outgoing Next Hop
tag tag or VC or Tunnel Id switched interface
45 12326 13.13.13.13/32 0 PO3/0 point2point
MAC/Encaps=4/8, MTU=4470, Tag Stack{12326}
FF030281 03026000
No output feature configured
Per-destination load-sharing, slots: 0 2 4 6 8 10 12 14
43 13.13.13.13/32 0 Tu1 point2point
MAC/Encaps=4/12, MTU=4466, Tag Stack{12335 43}, via PO3/0
FF030281 0302F0000002B000
No output feature configured
Per-destination load-sharing, slots: 1 3 5 7 9 11 13 15
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