MPLS TE Basic Config
r4#sh ru
Building configuration...
Current configuration : 1220 bytes
!
version 12.2
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname r4
!
!
clock timezone CET 1
ip subnet-zero
no ip domain lookup
!
ip cef
mpls label range 400 499
mpls traffic-eng tunnels
!
!
!
interface Loopback0
ip address 4.4.4.4 255.255.255.255
!
interface Tunnel0
ip unnumbered Loopback0
mpls traffic-eng tunnels
tunnel destination 8.8.8.8
tunnel mode mpls traffic-eng
tunnel mpls traffic-eng autoroute announce
tunnel mpls traffic-eng priority 3 3
tunnel mpls traffic-eng bandwidth 500
tunnel mpls traffic-eng path-option 10 dynamic
!
interface Ethernet0/0
no ip address
shutdown
!
interface Serial1/0
no ip address
shutdown
!
interface Serial2/0
ip address 192.168.45.4 255.255.255.0
mpls traffic-eng tunnels
fair-queue 64 256 32
ip rsvp bandwidth 1000 1000
!
interface Serial3/0
no ip address
shutdown
!
router ospf 1
router-id 4.4.4.4
log-adjacency-changes
network 4.4.4.4 0.0.0.0 area 0
network 192.168.45.0 0.0.0.255 area 0
mpls traffic-eng router-id Loopback0
mpls traffic-eng area 0
!
ip classless
no ip http server
!
!
!
!
!
line con 0
exec-timeout 0 0
logging synchronous
line aux 0
line vty 0 4
login
!
end
r4#sh ip route
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
P - periodic downloaded static route
Gateway of last resort is not set
C 192.168.45.0/24 is directly connected, Serial2/0
4.0.0.0/32 is subnetted, 1 subnets
C 4.4.4.4 is directly connected, Loopback0
5.0.0.0/32 is subnetted, 1 subnets
O 5.5.5.5 [110/65] via 192.168.45.5, 00:03:44, Serial2/0
O 192.168.57.0/24 [110/128] via 192.168.45.5, 00:03:44, Serial2/0
O 192.168.78.0/24 [110/138] via 192.168.45.5, 00:03:44, Serial2/0
6.0.0.0/32 is subnetted, 1 subnets
O 6.6.6.6 [110/129] via 192.168.45.5, 00:03:44, Serial2/0
O 192.168.56.0/24 [110/128] via 192.168.45.5, 00:03:44, Serial2/0
7.0.0.0/32 is subnetted, 1 subnets
O 7.7.7.7 [110/129] via 192.168.45.5, 00:03:44, Serial2/0
8.0.0.0/32 is subnetted, 1 subnets
O 8.8.8.8 [110/139] via 0.0.0.0, 00:03:44, Tunnel0
O 192.168.67.0/24 [110/192] via 192.168.45.5, 00:03:44, Serial2/0
r4#sh mpls traffic-eng ?
autoroute Autorouted tunnel destination information
link-management Link Management information
topology Show topology Commands
tunnels MPLS traffic-eng tunnel status
r4#sh mpls traffic-eng tunnels
Name: r4_t0 (Tunnel0) Destination: 8.8.8.8
Status:
Admin: up Oper: up Path: valid Signalling: connected
path option 10, type dynamic (Basis for Setup, path weight 202)
Config Parameters:
Bandwidth: 500 kbps (Global) Priority: 3 3 Affinity: 0x0/0xFFFF
Metric Type: TE (default)
AutoRoute: enabled LockDown: disabled Loadshare: 500 bw-based
auto-bw: disabled
InLabel : -
OutLabel : Serial2/0, 500
RSVP Signalling Info:
Src 4.4.4.4, Dst 8.8.8.8, Tun_Id 0, Tun_Instance 151
RSVP Path Info:
My Address: 4.4.4.4
Explicit Route: 192.168.45.5 192.168.56.6 192.168.67.7 192.168.78.7
192.168.78.8 8.8.8.8
Record Route: NONE
Tspec: ave rate=500 kbits, burst=1000 bytes, peak rate=500 kbits
RSVP Resv Info:
Record Route: NONE
Fspec: ave rate=500 kbits, burst=1000 bytes, peak rate=500 kbits
History:
Tunnel:
Time since created: 1 hours, 14 minutes
Time since path change: 9 seconds
Current LSP:
Uptime: 9 seconds
Prior LSP:
ID: path option 10 [107]
Removal Trigger: path error
r4#sh mpls traffic-eng autoroute
MPLS TE autorouting enabled
destination 8.8.8.8 has 1 tunnels
Tunnel0 (load balancing metric 4000000, nexthop 8.8.8.8)
r4#sh mpls traffic-eng link-management ?
admission-control Link Management admission-control
advertisements Link Management advertisements
bandwidth-allocation Link Management bandwidth-allocation
igp-neighbors Link Management igp-neighbors
interfaces Link Management Traffic Engineering interfaces
statistics Link Management Traffic Engineering statistics
summary Link Management summary
r4#sh mpls traffic-eng link-management admission-control
System Information::
Tunnels Count: 1
Tunnels Selected: 1
TUNNEL ID UP IF DOWN IF PRIORITY STATE BW (kbps)
4.4.4.4 0_152 - Se2/0 3/3 Resv Admitted 500 RG
r4#sh mpls traffic-eng link-management ad
r4#sh mpls traffic-eng link-management adv
r4#sh mpls traffic-eng link-management advertisements
Flooding Status: ready
Configured Areas: 1
IGP Area[1] ID:: ospf area 0
System Information::
Flooding Protocol: OSPF
Header Information::
IGP System ID: 4.4.4.4
MPLS TE Router ID: 4.4.4.4
Flooded Links: 1
Link ID:: 0
Link IP Address: 192.168.45.4
IGP Neighbor: ID 5.5.5.5, IP 192.168.45.5
TE metric: 64
IGP metric: 64
Physical Bandwidth: 1544 kbits/sec
Res. Global BW: 1000 kbits/sec
Res. Sub BW: 0 kbits/sec
Downstream::
Global Pool Sub Pool
----------- ----------
Reservable Bandwidth[0]: 1000 0 kbits/sec
Reservable Bandwidth[1]: 1000 0 kbits/sec
Reservable Bandwidth[2]: 1000 0 kbits/sec
Reservable Bandwidth[3]: 500 0 kbits/sec
Reservable Bandwidth[4]: 500 0 kbits/sec
Reservable Bandwidth[5]: 500 0 kbits/sec
Reservable Bandwidth[6]: 500 0 kbits/sec
Reservable Bandwidth[7]: 500 0 kbits/sec
Attribute Flags: 0x00000000
r4#sh mpls traffic-eng link-management bandwidth-allocation
System Information::
Links Count: 2
Bandwidth Hold Time: max. 15 seconds
Link ID:: Se2/0 (192.168.45.4)
Link Status:
Physical Bandwidth: 1544 kbits/sec
Max Res Global BW: 1000 kbits/sec (reserved: 0% in, 50% out)
Max Res Sub BW: 0 kbits/sec (reserved: 100% in, 100% out)
BW Descriptors: 1
MPLS TE Link State: MPLS TE on, RSVP on, admin-up, flooded
Inbound Admission: allow-all
Outbound Admission: allow-if-room
Admin. Weight: 64 (IGP)
IGP Neighbor Count: 1
Up Thresholds: 15 30 45 60 75 80 85 90 95 96 97 98 99 100 (default)
Down Thresholds: 100 99 98 97 96 95 90 85 80 75 60 45 30 15 (default)
Downstream Global Pool Bandwidth Information (kbits/sec):
KEEP PRIORITY BW HELD BW TOTAL HELD BW LOCKED BW TOTAL LOCKED
0 0 0 0 0
1 0 0 0 0
2 0 0 0 0
3 0 0 500 500
4 0 0 0 500
5 0 0 0 500
6 0 0 0 500
7 0 0 0 500
Downstream Sub Pool Bandwidth Information (kbits/sec):
KEEP PRIORITY BW HELD BW TOTAL HELD BW LOCKED BW TOTAL LOCKED
0 0 0 0 0
1 0 0 0 0
2 0 0 0 0
3 0 0 0 0
4 0 0 0 0
5 0 0 0 0
6 0 0 0 0
7 0 0 0 0
Link ID:: Tu0 (4.4.4.4)
Link Status:
Physical Bandwidth: 9 kbits/sec
Max Res Global BW: 0 kbits/sec (reserved: 100% in, 100% out)
Max Res Sub BW: 0 kbits/sec (reserved: 100% in, 100% out)
BW Descriptors: 0
MPLS TE Link State: MPLS TE on, RSVP on, admin-up
Inbound Admission: allow-all
Outbound Admission: allow-if-room
Admin. Weight: 11111 (IGP)
IGP Neighbor Count: 0
Up Thresholds: 15 30 45 60 75 80 85 90 95 96 97 98 99 100 (default)
Down Thresholds: 100 99 98 97 96 95 90 85 80 75 60 45 30 15 (default)
Downstream Global Pool Bandwidth Information (kbits/sec):
KEEP PRIORITY BW HELD BW TOTAL HELD BW LOCKED BW TOTAL LOCKED
0 0 0 0 0
1 0 0 0 0
2 0 0 0 0
3 0 0 0 0
4 0 0 0 0
5 0 0 0 0
6 0 0 0 0
7 0 0 0 0
Downstream Sub Pool Bandwidth Information (kbits/sec):
KEEP PRIORITY BW HELD BW TOTAL HELD BW LOCKED BW TOTAL LOCKED
0 0 0 0 0
1 0 0 0 0
2 0 0 0 0
3 0 0 0 0
4 0 0 0 0
5 0 0 0 0
6 0 0 0 0
7 0 0 0 0
r4#sh mpls traffic-eng link-management igp-neighbors
Link ID:: Se2/0
Neighbor ID: 5.5.5.5 (area: ospf area 0, IP: 192.168.45.5)
Link ID:: Tu0
r4#sh mpls traffic-eng link-management inte
r4#sh mpls traffic-eng link-management interfaces
System Information::
Links Count: 2
Link ID:: Se2/0 (192.168.45.4)
Link Status:
Physical Bandwidth: 1544 kbits/sec
Max Res Global BW: 1000 kbits/sec (reserved: 0% in, 50% out)
Max Res Sub BW: 0 kbits/sec (reserved: 100% in, 100% out)
MPLS TE Link State: MPLS TE on, RSVP on, admin-up, flooded
Inbound Admission: allow-all
Outbound Admission: allow-if-room
Admin. Weight: 64 (IGP)
IGP Neighbor Count: 1
IGP Neighbor: ID 5.5.5.5, IP 192.168.45.5 (Up)
Flooding Status for each configured area [1]:
IGP Area[1]: ospf area 0: flooded
Link ID:: Tu0 (4.4.4.4)
Link Status:
Physical Bandwidth: 9 kbits/sec
Max Res Global BW: 0 kbits/sec (reserved: 100% in, 100% out)
Max Res Sub BW: 0 kbits/sec (reserved: 100% in, 100% out)
MPLS TE Link State: MPLS TE on, RSVP on, admin-up
Inbound Admission: allow-all
Outbound Admission: allow-if-room
Admin. Weight: 11111 (IGP)
IGP Neighbor Count: 0
Flooding Status for each configured area [1]:
IGP Area[1]: ospf area 0: not flooded
(Reason: Link has no IGP adjacencies for this area)
r4#sh mpls traffic-eng link-management st
r4#sh mpls traffic-eng link-management statistics
System Information::
LSP Admission Statistics:
Path: 53 setup requests, 53 admits, 0 rejects, 0 setup errors
26 tear requests, 0 preempts, 0 tear errors
Resv: 6 setup requests, 6 admits, 0 rejects, 0 setup errors
2 tear requests, 0 preempts, 0 tear errors
Link ID:: Se2/0 (192.168.45.4)
Link Admission Statistics:
Up Path: 0 setup requests, 0 admits, 0 rejects, 0 setup errors
0 tear requests, 0 preempts, 0 tear errors
Up Resv: 0 setup requests, 0 admits, 0 rejects, 0 setup errors
2 tear requests, 0 preempts, 0 tear errors
Down Path: 53 setup requests, 53 admits, 0 rejects, 0 setup errors
26 tear requests, 0 preempts, 0 tear errors
Down Resv: 6 setup requests, 6 admits, 0 rejects, 0 setup errors
0 tear requests, 0 preempts, 0 tear errors
Link ID:: Tu0 (4.4.4.4)
Link Admission Statistics:
Up Path: 0 setup requests, 0 admits, 0 rejects, 0 setup errors
0 tear requests, 0 preempts, 0 tear errors
Up Resv: 0 setup requests, 0 admits, 0 rejects, 0 setup errors
0 tear requests, 0 preempts, 0 tear errors
Down Path: 0 setup requests, 0 admits, 0 rejects, 0 setup errors
0 tear requests, 0 preempts, 0 tear errors
Down Resv: 0 setup requests, 0 admits, 0 rejects, 0 setup errors
0 tear requests, 0 preempts, 0 tear errors
r4#sh ip rsvp installed
RSVP: Serial2/0
BPS To From Protoc DPort Sport
500K 8.8.8.8 4.4.4.4 0 0 152
RSVP: Tunnel0 has no installed reservations
r4#sh mpls traffic-eng link-management su
r4#sh mpls traffic-eng link-management summary
System Information::
Links Count: 2
Flooding System: enabled
IGP Area ID:: ospf area 0
Flooding Protocol: OSPF
Flooding Status: data flooded
Periodic Flooding: enabled (every 180 seconds)
Flooded Links: 1
IGP System ID: 4.4.4.4
MPLS TE Router ID: 4.4.4.4
IGP Neighbors: 1
Link ID:: Se2/0 (192.168.45.4)
Link Status:
Physical Bandwidth: 1544 kbits/sec
Max Res Global BW: 1000 kbits/sec (reserved: 0% in, 50% out)
Max Res Sub BW: 0 kbits/sec (reserved: 100% in, 100% out)
MPLS TE Link State: MPLS TE on, RSVP on, admin-up, flooded
Inbound Admission: allow-all
Outbound Admission: allow-if-room
Admin. Weight: 64 (IGP)
IGP Neighbor Count: 1
Link ID:: Tu0 (4.4.4.4)
Link Status:
Physical Bandwidth: 9 kbits/sec
Max Res Global BW: 0 kbits/sec (reserved: 100% in, 100% out)
Max Res Sub BW: 0 kbits/sec (reserved: 100% in, 100% out)
MPLS TE Link State: MPLS TE on, RSVP on, admin-up
Inbound Admission: allow-all
Outbound Admission: allow-if-room
Admin. Weight: 11111 (IGP)
IGP Neighbor Count: 0
r4#sh mpls traffic-eng topology ?
A.B.C.D Show topology based router-id or interface ip address
brief Use brief format
igp-id Show topology based on igp-id
path MPLS traffic-eng path information
| Output modifiers
<cr>
r4#sh mpls traffic-eng topology
My_System_id: 4.4.4.4, Globl Link Generation 40
Signalling error holddown: 10 sec
IGP Id: 4.4.4.4, MPLS TE Id:4.4.4.4 Router Node
link[0 ]:Nbr IGP Id: 5.5.5.5, gen:35
frag_id 0, Intf Address:192.168.45.4, Nbr Intf Address:192.168.45.5
TE metric:64, IGP metric:64, attribute_flags:0x0
physical_bw: 1544 (kbps), max_reservable_bw_global: 1000 (kbps)
max_reservable_bw_sub: 0 (kbps)
Global Pool Sub Pool
Total Allocated Reservable Reservable
BW (kbps) BW (kbps) BW (kbps)
--------------- ----------- ----------
bw[0]: 0 1000 0
bw[1]: 0 1000 0
bw[2]: 0 1000 0
bw[3]: 500 500 0
bw[4]: 0 500 0
bw[5]: 0 500 0
bw[6]: 0 500 0
bw[7]: 0 500 0
IGP Id: 5.5.5.5, MPLS TE Id:5.5.5.5 Router Node
link[0 ]:Nbr IGP Id: 4.4.4.4, gen:29
frag_id 0, Intf Address:192.168.45.5, Nbr Intf Address:192.168.45.4
TE metric:64, IGP metric:0, attribute_flags:0x0
physical_bw: 1544 (kbps), max_reservable_bw_global: 1000 (kbps)
max_reservable_bw_sub: 0 (kbps)
Global Pool Sub Pool
Total Allocated Reservable Reservable
BW (kbps) BW (kbps) BW (kbps)
--------------- ----------- ----------
bw[0]: 0 1000 0
bw[1]: 0 1000 0
bw[2]: 0 1000 0
bw[3]: 0 1000 0
bw[4]: 0 1000 0
bw[5]: 0 1000 0
bw[6]: 0 1000 0
bw[7]: 0 1000 0
link[1 ]:Nbr IGP Id: 6.6.6.6, gen:39
frag_id 1, Intf Address:192.168.56.5, Nbr Intf Address:192.168.56.6
TE metric:64, IGP metric:64, attribute_flags:0x0
physical_bw: 1544 (kbps), max_reservable_bw_global: 1000 (kbps)
max_reservable_bw_sub: 0 (kbps)
Global Pool Sub Pool
Total Allocated Reservable Reservable
BW (kbps) BW (kbps) BW (kbps)
--------------- ----------- ----------
bw[0]: 0 1000 0
bw[1]: 0 1000 0
bw[2]: 0 1000 0
bw[3]: 0 1000 0
bw[4]: 0 1000 0
bw[5]: 0 1000 0
bw[6]: 0 1000 0
bw[7]: 0 1000 0
link[2 ]:Nbr IGP Id: 7.7.7.7, gen:38
frag_id 2, Intf Address:192.168.57.5, Nbr Intf Address:192.168.57.7
TE metric:64, IGP metric:64, attribute_flags:0x0
physical_bw: 1544 (kbps), max_reservable_bw_global: 1000 (kbps)
max_reservable_bw_sub: 0 (kbps)
Global Pool Sub Pool
Total Allocated Reservable Reservable
BW (kbps) BW (kbps) BW (kbps)
--------------- ----------- ----------
bw[0]: 0 1000 0
bw[1]: 0 1000 0
bw[2]: 0 1000 0
bw[3]: 500 500 0
bw[4]: 0 500 0
bw[5]: 0 500 0
bw[6]: 0 500 0
bw[7]: 0 500 0
IGP Id: 6.6.6.6, MPLS TE Id:6.6.6.6 Router Node
link[0 ]:Nbr IGP Id: 5.5.5.5, gen:31
frag_id 0, Intf Address:192.168.56.6, Nbr Intf Address:192.168.56.5
TE metric:64, IGP metric:0, attribute_flags:0x0
physical_bw: 1544 (kbps), max_reservable_bw_global: 1000 (kbps)
max_reservable_bw_sub: 0 (kbps)
Global Pool Sub Pool
Total Allocated Reservable Reservable
BW (kbps) BW (kbps) BW (kbps)
--------------- ----------- ----------
bw[0]: 0 1000 0
bw[1]: 0 1000 0
bw[2]: 0 1000 0
bw[3]: 0 1000 0
bw[4]: 0 1000 0
bw[5]: 0 1000 0
bw[6]: 0 1000 0
bw[7]: 0 1000 0
link[1 ]:Nbr IGP Id: 7.7.7.7, gen:40
frag_id 1, Intf Address:192.168.67.6, Nbr Intf Address:192.168.67.7
TE metric:64, IGP metric:64, attribute_flags:0x0
physical_bw: 1544 (kbps), max_reservable_bw_global: 1000 (kbps)
max_reservable_bw_sub: 0 (kbps)
Global Pool Sub Pool
Total Allocated Reservable Reservable
BW (kbps) BW (kbps) BW (kbps)
--------------- ----------- ----------
bw[0]: 0 1000 0
bw[1]: 0 1000 0
bw[2]: 0 1000 0
bw[3]: 0 1000 0
bw[4]: 0 1000 0
bw[5]: 0 1000 0
bw[6]: 0 1000 0
bw[7]: 0 1000 0
IGP Id: 7.7.7.7, MPLS TE Id:7.7.7.7 Router Node
link[0 ]:DR Intf Address: 192.168.78.8, gen:33
frag_id 1, Intf Address:192.168.78.7
TE metric:10, IGP metric:10, attribute_flags:0x0
physical_bw: 10000 (kbps), max_reservable_bw_global: 1000 (kbps)
max_reservable_bw_sub: 0 (kbps)
Global Pool Sub Pool
Total Allocated Reservable Reservable
BW (kbps) BW (kbps) BW (kbps)
--------------- ----------- ----------
bw[0]: 0 1000 0
bw[1]: 0 1000 0
bw[2]: 0 1000 0
bw[3]: 500 500 0
bw[4]: 0 500 0
bw[5]: 0 500 0
bw[6]: 0 500 0
bw[7]: 0 500 0
link[1 ]:Nbr IGP Id: 5.5.5.5, gen:32
frag_id 0, Intf Address:192.168.57.7, Nbr Intf Address:192.168.57.5
TE metric:64, IGP metric:0, attribute_flags:0x0
physical_bw: 1544 (kbps), max_reservable_bw_global: 1000 (kbps)
max_reservable_bw_sub: 0 (kbps)
Global Pool Sub Pool
Total Allocated Reservable Reservable
BW (kbps) BW (kbps) BW (kbps)
--------------- ----------- ----------
bw[0]: 0 1000 0
bw[1]: 0 1000 0
bw[2]: 0 1000 0
bw[3]: 0 1000 0
bw[4]: 0 1000 0
bw[5]: 0 1000 0
bw[6]: 0 1000 0
bw[7]: 0 1000 0
link[2 ]:Nbr IGP Id: 6.6.6.6, gen:32
frag_id 2, Intf Address:192.168.67.7, Nbr Intf Address:192.168.67.6
TE metric:64, IGP metric:0, attribute_flags:0x0
physical_bw: 1544 (kbps), max_reservable_bw_global: 1000 (kbps)
max_reservable_bw_sub: 0 (kbps)
Global Pool Sub Pool
Total Allocated Reservable Reservable
BW (kbps) BW (kbps) BW (kbps)
--------------- ----------- ----------
bw[0]: 0 1000 0
bw[1]: 0 1000 0
bw[2]: 0 1000 0
bw[3]: 0 1000 0
bw[4]: 0 1000 0
bw[5]: 0 1000 0
bw[6]: 0 1000 0
bw[7]: 0 1000 0
IGP Id: 8.8.8.8, MPLS TE Id:8.8.8.8 Router Node
link[0 ]:DR Intf Address: 192.168.78.8, gen:9
frag_id 0, Intf Address:192.168.78.8
TE metric:10, IGP metric:10, attribute_flags:0x0
physical_bw: 10000 (kbps), max_reservable_bw_global: 1000 (kbps)
max_reservable_bw_sub: 0 (kbps)
Global Pool Sub Pool
Total Allocated Reservable Reservable
BW (kbps) BW (kbps) BW (kbps)
--------------- ----------- ----------
bw[0]: 0 1000 0
bw[1]: 0 1000 0
bw[2]: 0 1000 0
bw[3]: 0 1000 0
bw[4]: 0 1000 0
bw[5]: 0 1000 0
bw[6]: 0 1000 0
bw[7]: 0 1000 0
IGP Id: 192.168.78.8, Network Node
link[0 ]:Nbr IGP Id: 8.8.8.8, gen:30
link[1 ]:Nbr IGP Id: 7.7.7.7, gen:30
r4#
r4#sh ip cef d
IP CEF with switching (Table Version 40), flags=0x0
15 routes, 0 reresolve, 0 unresolved (0 old, 0 new), peak 0
18 leaves, 26 nodes, 29344 bytes, 39 inserts, 21 invalidations
0 load sharing elements, 0 bytes, 0 references
universal per-destination load sharing algorithm, id B7E4AF56
2(0) CEF resets, 3 revisions of existing leaves
Resolution Timer: Exponential (currently 1s, peak 1s)
4 in-place/0 aborted modifications
refcounts: 6921 leaf, 6912 node
Table epoch: 0 (18 entries at this epoch)
Adjacency Table has 3 adjacencies
0.0.0.0/0, version 0, epoch 0, attached, default route handler
0 packets, 0 bytes
via 0.0.0.0, 0 dependencies
valid null adjacency
0.0.0.0/32, version 0, epoch 0, receive
4.4.4.4/32, version 4, epoch 0, connected, receive
5.5.5.5/32, version 33, epoch 0, cached adjacency to Serial2/0
0 packets, 0 bytes
via 192.168.45.5, Serial2/0, 0 dependencies
next hop 192.168.45.5, Serial2/0
valid cached adjacency
6.6.6.6/32, version 32, epoch 0, cached adjacency to Serial2/0
0 packets, 0 bytes
via 192.168.45.5, Serial2/0, 0 dependencies
next hop 192.168.45.5, Serial2/0
valid cached adjacency
7.7.7.7/32, version 34, epoch 0, cached adjacency to Serial2/0
0 packets, 0 bytes
via 192.168.45.5, Serial2/0, 0 dependencies
next hop 192.168.45.5, Serial2/0
valid cached adjacency
8.8.8.8/32, version 39, epoch 0
0 packets, 0 bytes
tag information set
local tag: tunnel-head
fast tag rewrite with Tu0, point2point, tags imposed: {501}
via 0.0.0.0, Tunnel0, 0 dependencies
next hop 0.0.0.0, Tunnel0
valid adjacency
tag rewrite with Tu0, point2point, tags imposed: {501}
192.168.45.0/24, version 11, epoch 0, attached, connected, cached adjacency to Serial2/0
0 packets, 0 bytes
via Serial2/0, 0 dependencies
valid cached adjacency
192.168.45.0/32, version 9, epoch 0, receive
192.168.45.4/32, version 8, epoch 0, receive
192.168.45.255/32, version 10, epoch 0, receive
192.168.56.0/24, version 26, epoch 0, cached adjacency to Serial2/0
0 packets, 0 bytes
via 192.168.45.5, Serial2/0, 0 dependencies
next hop 192.168.45.5, Serial2/0
valid cached adjacency
192.168.57.0/24, version 30, epoch 0, cached adjacency to Serial2/0
0 packets, 0 bytes
via 192.168.45.5, Serial2/0, 0 dependencies
next hop 192.168.45.5, Serial2/0
valid cached adjacency
192.168.67.0/24, version 35, epoch 0, cached adjacency to Serial2/0
0 packets, 0 bytes
via 192.168.45.5, Serial2/0, 0 dependencies
next hop 192.168.45.5, Serial2/0
valid cached adjacency
192.168.78.0/24, version 36, epoch 0, cached adjacency to Serial2/0
0 packets, 0 bytes
via 192.168.45.5, Serial2/0, 0 dependencies
next hop 192.168.45.5, Serial2/0
valid cached adjacency
224.0.0.0/4, version 6, epoch 0
0 packets, 0 bytes, Precedence routine (0)
via 0.0.0.0, 0 dependencies
next hop 0.0.0.0
valid drop adjacency
224.0.0.0/24, version 2, epoch 0, receive
255.255.255.255/32, version 1, epoch 0, receive
====================================================================================================
r5#sh ru
Building configuration...
Current configuration : 1208 bytes
!
version 12.2
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname r5
!
!
clock timezone CET 1
ip subnet-zero
no ip domain lookup
!
ip cef
mpls label range 500 599
mpls traffic-eng tunnels
!
!
!
interface Loopback0
ip address 5.5.5.5 255.255.255.0
!
interface Ethernet0/0
no ip address
shutdown
!
interface Serial1/0
ip address 192.168.56.5 255.255.255.0
mpls traffic-eng tunnels
fair-queue 64 256 32
ip rsvp bandwidth 1000 1000
!
interface Serial2/0
ip address 192.168.45.5 255.255.255.0
mpls traffic-eng tunnels
fair-queue 64 256 32
ip rsvp bandwidth 1000 1000
!
interface Serial3/0
ip address 192.168.57.5 255.255.255.0
mpls traffic-eng tunnels
fair-queue 64 256 32
ip rsvp bandwidth 1000 1000
!
router ospf 1
router-id 5.5.5.5
log-adjacency-changes
passive-interface Loopback0
network 5.5.5.5 0.0.0.0 area 0
network 192.168.45.0 0.0.0.255 area 0
network 192.168.56.0 0.0.0.255 area 0
network 192.168.57.0 0.0.0.255 area 0
mpls traffic-eng router-id Loopback0
mpls traffic-eng area 0
!
ip classless
no ip http server
!
!
!
!
!
line con 0
exec-timeout 0 0
logging synchronous
line aux 0
line vty 0 4
login
!
end
r5#sh ip route
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
P - periodic downloaded static route
Gateway of last resort is not set
C 192.168.45.0/24 is directly connected, Serial2/0
4.0.0.0/32 is subnetted, 1 subnets
O 4.4.4.4 [110/65] via 192.168.45.4, 00:10:48, Serial2/0
5.0.0.0/24 is subnetted, 1 subnets
C 5.5.5.0 is directly connected, Loopback0
C 192.168.57.0/24 is directly connected, Serial3/0
O 192.168.78.0/24 [110/74] via 192.168.57.7, 00:10:48, Serial3/0
6.0.0.0/32 is subnetted, 1 subnets
O 6.6.6.6 [110/65] via 192.168.56.6, 00:10:48, Serial1/0
C 192.168.56.0/24 is directly connected, Serial1/0
7.0.0.0/32 is subnetted, 1 subnets
O 7.7.7.7 [110/65] via 192.168.57.7, 00:10:48, Serial3/0
8.0.0.0/32 is subnetted, 1 subnets
O 8.8.8.8 [110/75] via 192.168.57.7, 00:10:48, Serial3/0
O 192.168.67.0/24 [110/128] via 192.168.57.7, 00:10:48, Serial3/0
[110/128] via 192.168.56.6, 00:10:48, Serial1/0
r5#sh ip rsvp installed
RSVP: Serial1/0 has no installed reservations
RSVP: Serial2/0 has no installed reservations
RSVP: Serial3/0
BPS To From Protoc DPort Sport
500K 8.8.8.8 4.4.4.4 0 0 152
r5#sh tag for
Local Outgoing Prefix Bytes tag Outgoing Next Hop
tag tag or VC or Tunnel Id switched interface
501 701 4.4.4.4 0 [152] 312 Se3/0 point2point
==============================================================================================
r6#sh ru
Building configuration...
Current configuration : 1080 bytes
!
version 12.2
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname r6
!
!
clock timezone CET 1
ip subnet-zero
no ip domain lookup
!
ip cef
mpls label range 600 699
mpls traffic-eng tunnels
!
!
!
interface Loopback0
ip address 6.6.6.6 255.255.255.255
!
interface Ethernet0/0
no ip address
shutdown
!
interface Serial1/0
ip address 192.168.56.6 255.255.255.0
mpls traffic-eng tunnels
fair-queue 64 256 32
ip rsvp bandwidth 1000 1000
!
interface Serial2/0
ip address 192.168.67.6 255.255.255.0
mpls traffic-eng tunnels
fair-queue 64 256 32
ip rsvp bandwidth 1000 1000
!
interface Serial3/0
no ip address
shutdown
!
router ospf 1
router-id 6.6.6.6
log-adjacency-changes
passive-interface Loopback0
network 6.6.6.6 0.0.0.0 area 0
network 192.168.56.0 0.0.0.255 area 0
network 192.168.67.0 0.0.0.255 area 0
mpls traffic-eng router-id Loopback0
mpls traffic-eng area 0
!
ip classless
no ip http server
!
!
!
!
!
line con 0
exec-timeout 0 0
logging synchronous
line aux 0
line vty 0 4
login
!
end
r6#sh tag f
Local Outgoing Prefix Bytes tag Outgoing Next Hop
tag tag or VC or Tunnel Id switched interface
==================================================================================
r7#sh ru
Building configuration...
Current configuration : 1181 bytes
!
version 12.2
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname r7
!
!
clock timezone CET 1
ip subnet-zero
no ip domain lookup
!
ip cef
mpls label range 700 799
mpls traffic-eng tunnels
!
!
!
interface Loopback0
ip address 7.7.7.7 255.255.255.255
!
interface Ethernet0/0
ip address 192.168.78.7 255.255.255.0
mpls traffic-eng tunnels
fair-queue 64 256 32
ip rsvp bandwidth 1000 1000
!
interface Serial1/0
no ip address
shutdown
!
interface Serial2/0
ip address 192.168.67.7 255.255.255.0
mpls traffic-eng tunnels
fair-queue 64 256 32
ip rsvp bandwidth 1000 1000
!
interface Serial3/0
ip address 192.168.57.7 255.255.255.0
mpls traffic-eng tunnels
fair-queue 64 256 32
ip rsvp bandwidth 1000 1000
!
router ospf 1
router-id 7.7.7.7
log-adjacency-changes
network 7.7.7.7 0.0.0.0 area 0
network 192.168.57.0 0.0.0.255 area 0
network 192.168.67.0 0.0.0.255 area 0
network 192.168.78.0 0.0.0.255 area 0
mpls traffic-eng router-id Loopback0
mpls traffic-eng area 0
!
ip classless
no ip http server
!
!
!
!
!
line con 0
exec-timeout 0 0
logging synchronous
line aux 0
line vty 0 4
login
!
end
r7#sh ip route
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
P - periodic downloaded static route
Gateway of last resort is not set
O 192.168.45.0/24 [110/128] via 192.168.57.5, 00:13:01, Serial3/0
4.0.0.0/32 is subnetted, 1 subnets
O 4.4.4.4 [110/129] via 192.168.57.5, 00:13:01, Serial3/0
5.0.0.0/32 is subnetted, 1 subnets
O 5.5.5.5 [110/65] via 192.168.57.5, 00:13:01, Serial3/0
C 192.168.57.0/24 is directly connected, Serial3/0
C 192.168.78.0/24 is directly connected, Ethernet0/0
6.0.0.0/32 is subnetted, 1 subnets
O 6.6.6.6 [110/65] via 192.168.67.6, 00:13:01, Serial2/0
O 192.168.56.0/24 [110/128] via 192.168.57.5, 00:13:01, Serial3/0
[110/128] via 192.168.67.6, 00:13:01, Serial2/0
7.0.0.0/32 is subnetted, 1 subnets
C 7.7.7.7 is directly connected, Loopback0
8.0.0.0/32 is subnetted, 1 subnets
O 8.8.8.8 [110/11] via 192.168.78.8, 00:13:01, Ethernet0/0
C 192.168.67.0/24 is directly connected, Serial2/0
r7# sh tag f
Local Outgoing Prefix Bytes tag Outgoing Next Hop
tag tag or VC or Tunnel Id switched interface
701 Pop tag 4.4.4.4 0 [152] 768 Et0/0 192.168.78.8
=====================================================================================
r8#sh ru
Building configuration...
Current configuration : 868 bytes
!
version 12.2
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname r8
!
!
clock timezone CET 1
ip subnet-zero
no ip domain lookup
!
ip cef
mpls label range 800 899
mpls traffic-eng tunnels
!
!
!
interface Loopback0
ip address 8.8.8.8 255.255.255.255
!
interface Ethernet0/0
ip address 192.168.78.8 255.255.255.0
mpls traffic-eng tunnels
ip rsvp bandwidth 1000 1000
!
interface Serial1/0
no ip address
shutdown
!
interface Serial2/0
no ip address
shutdown
!
interface Serial3/0
no ip address
shutdown
!
router ospf 1
router-id 8.8.8.8
log-adjacency-changes
network 0.0.0.0 255.255.255.255 area 0
mpls traffic-eng router-id Loopback0
mpls traffic-eng area 0
!
ip classless
no ip http server
!
!
!
!
!
line con 0
exec-timeout 0 0
logging synchronous
line aux 0
line vty 0 4
login
!
end
r8# sh tag f
Local Outgoing Prefix Bytes tag Outgoing Next Hop
tag tag or VC or Tunnel Id switched interface
===================================================================================
现象：
r4#traceroute 8.8.8.8
Type escape sequence to abort.
Tracing the route to 8.8.8.8
1 192.168.45.5 [MPLS: Label 501 Exp 0] 20 msec 20 msec 20 msec
2 192.168.57.7 [MPLS: Label 701 Exp 0] 20 msec 16 msec 20 msec
3 192.168.78.8 28 msec * 28 msec
这时候
r6#sh tag f
Local Outgoing Prefix Bytes tag Outgoing Next Hop
tag tag or VC or Tunnel Id switched interface
在r5上做如下配置：
r5#sh ru int s3/0
Building configuration...
Current configuration : 141 bytes
!
interface Serial3/0
ip address 192.168.57.5 255.255.255.0
mpls traffic-eng tunnels
fair-queue 64 256 32
ip rsvp bandwidth 400 400
end
这时候：
r4#sh mpls traffic-eng tunnels
Name: r4_t0 (Tunnel0) Destination: 8.8.8.8
Status:
Admin: up Oper: up Path: valid Signalling: connected
path option 10, type dynamic (Basis for Setup, path weight 202)
Config Parameters:
Bandwidth: 500 kbps (Global) Priority: 3 3 Affinity: 0x0/0xFFFF
Metric Type: TE (default)
AutoRoute: enabled LockDown: disabled Loadshare: 500 bw-based
auto-bw: disabled
InLabel : -
OutLabel : Serial2/0, 500
RSVP Signalling Info:
Src 4.4.4.4, Dst 8.8.8.8, Tun_Id 0, Tun_Instance 178
RSVP Path Info:
My Address: 4.4.4.4
Explicit Route: 192.168.45.5 192.168.56.6 192.168.67.7 192.168.78.7
192.168.78.8 8.8.8.8
Record Route: NONE
Tspec: ave rate=500 kbits, burst=1000 bytes, peak rate=500 kbits
RSVP Resv Info:
Record Route: NONE
Fspec: ave rate=500 kbits, burst=1000 bytes, peak rate=500 kbits
History:
Tunnel:
Time since created: 1 hours, 32 minutes
Time since path change: 2 minutes, 26 seconds
Current LSP:
Uptime: 2 minutes, 26 seconds
Prior LSP:
ID: path option 10 [177]
Removal Trigger: path error
并且在r6上生成标签转发表：
r6#sh tag f
Local Outgoing Prefix Bytes tag Outgoing Next Hop
tag tag or VC or Tunnel Id switched interface
600 700 4.4.4.4 0 [178] 840 Se2/0 point2point
traceroute的结果：
r4#traceroute 8.8.8.8
Type escape sequence to abort.
Tracing the route to 8.8.8.8
1 192.168.45.5 [MPLS: Label 500 Exp 0] 20 msec 32 msec 32 msec
2 192.168.56.6 [MPLS: Label 600 Exp 0] 32 msec 32 msec 20 msec
3 192.168.67.7 [MPLS: Label 700 Exp 0] 20 msec 20 msec 20 msec
4 192.168.78.8 20 msec * 16 msec
接着恢复R5的接口配置，经过重新优化以后，应该选择R4-R5-R7-R8的路径。
r4#sh mpls traffic-eng tunnels
Name: r4_t0 (Tunnel0) Destination: 8.8.8.8
Status:
Admin: up Oper: up Path: valid Signalling: connected
path option 10, type dynamic (Basis for Setup, path weight 202)
Config Parameters:
Bandwidth: 500 kbps (Global) Priority: 3 3 Affinity: 0x0/0xFFFF
Metric Type: TE (default)
AutoRoute: enabled LockDown: disabled Loadshare: 500 bw-based
auto-bw: disabled
InLabel : -
OutLabel : Serial2/0, 500
RSVP Signalling Info:
Src 4.4.4.4, Dst 8.8.8.8, Tun_Id 0, Tun_Instance 151
RSVP Path Info:
My Address: 4.4.4.4
Explicit Route: 192.168.45.5 192.168.56.6 192.168.67.7 192.168.78.7
192.168.78.8 8.8.8.8
Record Route: NONE
Tspec: ave rate=500 kbits, burst=1000 bytes, peak rate=500 kbits
RSVP Resv Info:
Record Route: NONE
Fspec: ave rate=500 kbits, burst=1000 bytes, peak rate=500 kbits
History:
Tunnel:
Time since created: 1 hours, 14 minutes
Time since path change: 9 seconds
Current LSP:
Uptime: 9 seconds
Prior LSP:
ID: path option 10 [107]
Removal Trigger: path error
－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－
traceroute结果：
r4#traceroute 8.8.8.8
Type escape sequence to abort.
Tracing the route to 8.8.8.8
1 192.168.45.5 [MPLS: Label 500 Exp 0] 20 msec 32 msec 20 msec
2 192.168.57.7 [MPLS: Label 700 Exp 0] 40 msec 32 msec 32 msec
3 192.168.78.8 20 msec * 20 msec
－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－
再在R4上的tunnel接口下配置：
r4(config-if)# tunnel mpls traffic-eng path-option 5 explicit name first
因为path-option 是5，比10小，它会优选手动定义的这条，
并且手动定义显式路径
ip explicit-path name first enable
next-address 192.168.45.5
next-address 192.168.56.6
next-address 192.168.67.7
next-address 192.168.78.8
r4# sh ip explicit-paths
PATH first (strict source route, path complete, generation 13)
1: next-address 192.168.45.5
2: next-address 192.168.56.6
3: next-address 192.168.67.7
4: next-address 192.168.78.8
－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－
手动优化以后：
r4#mpls traffic-eng reoptimize
r4#sh mpls traffic-eng tunnels
Name: r4_t0 (Tunnel0) Destination: 8.8.8.8
Status:
Admin: up Oper: up Path: valid Signalling: connected
path option 5, type explicit first (Basis for Setup, path weight 202)
path option 10, delayed clean in progress
Config Parameters:
Bandwidth: 500 kbps (Global) Priority: 3 3 Affinity: 0x0/0xFFFF
Metric Type: TE (default)
AutoRoute: enabled LockDown: disabled Loadshare: 500 bw-based
auto-bw: disabled
InLabel : -
OutLabel : Serial2/0, 501
RSVP Signalling Info:
Src 4.4.4.4, Dst 8.8.8.8, Tun_Id 0, Tun_Instance 357
RSVP Path Info:
My Address: 4.4.4.4
Explicit Route: 192.168.45.5 192.168.56.6 192.168.67.7 192.168.78.7
192.168.78.8 8.8.8.8
Record Route: NONE
Tspec: ave rate=500 kbits, burst=1000 bytes, peak rate=500 kbits
RSVP Resv Info:
Record Route: NONE
Fspec: ave rate=500 kbits, burst=1000 bytes, peak rate=500 kbits
History:
Tunnel:
Time since created: 1 hours, 55 minutes
Time since path change: 32 seconds
Current LSP:
Uptime: 32 seconds
Selection: reoptimation
Prior LSP:
ID: path option 10 [356]
Removal Trigger: reoptimization completed
这时候应该选R4-R5-R6-R7-R8
－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－
traceroute的结果：
r4#traceroute 8.8.8.8
Type escape sequence to abort.
Tracing the route to 8.8.8.8
1 192.168.45.5 [MPLS: Label 501 Exp 0] 16 msec 32 msec 32 msec
2 192.168.56.6 [MPLS: Label 600 Exp 0] 32 msec 20 msec 16 msec
3 192.168.67.7 [MPLS: Label 701 Exp 0] 20 msec 16 msec 20 msec
4 192.168.78.8 28 msec * 20 msec
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