To view the complete configuration you have entered, use the EXEC command show running-config and check its output display for correctness.
To check just one tunnel’s configuration
, enter show interfaces tunnel followed by the tunnel interface number. And to see that tunnel’s RSVP bandwidth and flow, enter show ip rsvp interface followed by the name or number of the network interface (and also, in the case of an ATM-PVC or LC-ATM interface, the name or number of the sub-interface).
Here is an example of the information displayed by these two commands. To see an explanation of each field used in the following displays turn to page 95 for show interfaces tunnel
and page 109 for show ip rsvp interface.
RTR1#show interfaces tunnel 4
Tunnel4 is up, line protocol is down
Hardware is Routing Tunnel
MTU 1500 bytes, BW 9 Kbit, DLY 500000 usec, rely 255/255, load 1/255
Encapsulation TUNNEL, loopback not set, keepalive set (10 sec)
Tunnel source 0.0.0.0, destination 0.0.0.0
Tunnel protocol/transport GRE/IP, key disabled, sequencing disabled
Last input never, output never, output hang never
Last clearing of "show interface" counters never
Output queue 0/0, 0 drops; input queue 0/75, 0 drops
Five minute input rate 0 bits/sec, 0 packets/sec
Five minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets, 0 restarts
RTR1#show ip rsvp interface pos4/0
interface allocated i/f max flow max sub max
PO4/0 300K 466500K 466500K 0M
RTR1#show ip rsvp interface atm3/0
RTR1#show ip rsvp interface atm3/0.5
interface allocated i/f max flow max sub max
AT3/0.5 110M 130M 130M 100
To view all tunnels at once on the router you have configured, enter show mpls traffic-eng tunnels brief. The information displayed when tunnels are functioning properly looks like this (a table explaining the display fields begins on page 136):
RTR1#show mpls traffic-eng tunnels brief
Signalling Summary:
LSP Tunnels Process: running
RSVP Process: running
Forwarding: enabled
Periodic reoptimization: every 3600 seconds, next in 3029 seconds
TUNNEL NAME DESTINATION UP IF DOWN IF STATE/PROT
RTR1_t0 192.168.1.13 - SR3/0 up/up
RTR1_t1 192.168.1.13 - SR3/0 up/up
RTR1_t2 192.168.1.13 - PO4/0 up/up
[[RTR1_t3 192.168.1.13 - AT3/0.5 up/up]]
Displayed 4(of 4) heads, 0 (of 0) midpoints, 0 (of 0) tails
When one or more tunnels are not functioning properly, the display could instead look like this. (In the following example, tunnels t0 and t1 are down, as indicated in the far right column).
RTR1#show mpls traffic-eng tunnels brief
Signalling Summary:
LSP Tunnels Process: running
RSVP Process: running
Forwarding: enabled
Periodic reoptimization: every 3600 seconds, next in 2279 seconds
TUNNEL NAME DESTINATION UP IF DOWN IF STATE/PROT
RTR1_t0 192.168.1.13 - SR3/0 up/down
RTR1_t1 192.168.1.13 - SR3/0 up/down
RTR1_t2 192.168.1.13 - PO4/0 up/up
Displayed 3 (of 3) heads, 0 (of 0) midpoints, 0 (of 0) tails
To find out why a tunnel is down, insert its name into this same command, after adding the keyword name and omitting the keyword brief. For example:
RTR1#show mpls traffic-eng tunnels name RTR1_t0
Name:RTR1_t0 (Tunnel0) Destination:192.168.1.13
Status:
Admin:up Oper:down Path: not valid Signalling:connected
If, as in this example, the Path is displayed as not valid, use the show mpls traffic-eng topology commandto make sure the router has received the needed updates. (That command is described on page 133.)
Additionally, you can use any of the following show commands to inspect particular aspects of the network, router, or interface concernef:
To see information about...
|
Use this command
|
this level
|
and this item...
|
Network
|
Advertised bandwidth allocation information
|
show
mpls
traffic-eng
link-management
advertisements
(described on page 121)
|
Preemptions along the tunnel path
|
debug
mpls
traffic-eng
link-management
preemption
(described on page 61)
|
Available TE link band- width on all head routers
|
show
mpls
traffic-eng
topology
(described on page 133)
|
Router
|
Status of all tunnels cur- rently signalled by this router
|
show
mpls
traffic-eng
link-management
admission-control
(described on page 119)
|
Tunnels configured on midpoint routers
|
show
mpls
traffic-eng
link-management
summary
(described on page 131)
|
Interface
|
Detailed information on current bandwidth pools
|
show
mpls
traffic-eng
link-management
bandwidth-allocation
[interface-name
]
(described on page 124
|
TE RSVP bookkeeping
|
show
mpls
traffic-eng
link-management
interfaces
(described on page 129)
|
Entire configuration of one interface
|
show
run
interface
|