Monitoring MPLS

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Monitoring MPLS
Use the show commands in this section to monitor MPLS status.

You can use the output filtering feature of the show command to include or exclude lines of output based on a text string you specify. Refer to ERX System Basics Configuration Guide, Chapter 2, Command Line Interface, for details.

You can trace paths through the MPLS user plane with the traceroute command. ICMP extensions enable LSRs to append MPLS header information (the label stack) to ICMP destination unreachable and time exceeded messages. The traceroute display shows the label and EXP bits used to switch the ICMP packets:
host1:edge1#traceroute 10.90.101.9
Tracing route to 10.90.101.9, TTL = 32, timeout = 2 sec.
(Press ^c to stop.)
1  3ms  2ms  2ms       10.90.101.4    mplsLabel1=4009
mplsExpBits1=0
2  2ms  2ms  2ms       10.90.101.7    mplsLabel1=7004
mplsExpBits1=0
3  2ms  2ms  2ms       10.90.101.9
See ERX Routing Protocols Configuration Guide, Vol. 1, Chapter 2, Configuring IP, for more information on using the traceroute command.

show cac

Use to display global CAC (call admission control) configuration.

Example
host1#show cac 
resource info flood interval 180 
show cac interface

Use to display all interfaces on which TE accounting is configured, or information only for the specified interface.

Use the brief option to display summary information.

Field descriptions

bandwidth - maximum physical bandwidth in Kbps; line rate

IP/MPLS reserveable bw - total bandwidth in Kbps that could be reserved for MPLS; includes bandwidth that is already reserved as well as bandwidth not yet reserved

current total available bw - total bandwidth in Kbps that is available to be reserved

MPLS TE flooding threshold up/down - absolute percentages of total reservable bandwidth that trigger the flooding of the new bandwidth value throughout the network; flooding is triggered when bandwidth increases past any of the up threshold values and when bandwidth decreases past any of the down threshold values

MPLS TE administrative weight - weight assigned to the interface that supersedes a weight assigned by the IGP

MPLS TE attribute flags - 32-bit value that assigns the interface to a resource class and enables a tunnel to discriminate among interfaces by matching against tunnel affinity bits

Available BW at 8 priority levels - bandwidth in Kbps that is available at each priority level from 0-7

Example
host1#show cac interface
atm2/0
  bandwidth 10 kbps
  IP/MPLS reserveable bw 10 kbps
  current total available bw 10 kbps
  MPLS TE flooding threshold:
    up   15 30 45 60 75 80 85 90 95 96 97 98 99 100
    down 100 99 98 97 96 95 90 85 80 75 60 45 30 15
  MPLS TE administrative weight 0
  MPLS TE attribute flags 0
  Available BW at 8 priority levels:
      0     10 kbps
      1     10 kbps
      2     10 kbps
      3     10 kbps
      4     10 kbps
      5     10 kbps
      6     10 kbps
      7     10 kbps 
show configuration

Use to display the configuration of all virtual routers or a specific virtual router.

Example
host1#show configuration virtual-router euro7
show mpls

Use to display status and configuration information about MPLS.

Field descriptions

MPLS - status of MPLS, administratively enabled or disabled, and configuration status

LSR ID - IP address of label-switched router

Re-optimization timer - frequency at which LSPs are checked for better paths

Label range - range of platform label space

retry - retry behavior to be performed during LSP setup

Loop Detect - status of loop detection, enabled or disabled

Example
    host1#show mpls 
    MPLS administratively enabled
     Current state is Config incomplete
     LSR ID is 2.2.2.2
     Re-optimization timer is 3600
     Label range 3000 ~ 4000
     retry forever at interval 30 during LSP setup if there is route
     retry forever at interval 30 during LSP setup if there is no route
    Loop Detect enabled
show mpls binding

Displays label bindings for routes that are used for forwarding.

Field descriptions

in - label sent to upstream neighbor for displayed route

out - label received from downstream neighbor for displayed route

interface - interface on which the label is sent or received

neighbor - IP address of neighbor to which the label is sent or received

Example
host1#show mpls binding
   Frame Relay over MPLS  vc-id 50001 group-id 2
    In    26  interface   neighbor 222.9.1.3
    Out   27  interface   neighbor 222.9.1.3
   VLAN over MPLS  vc-id 240001 group-id 2        
    In    22  interface   neighbor 222.9.1.3
    Out   25  interface   neighbor 222.9.1.3
  10.1.1.1/32
    In    10001  interface ATM4/0.120  neighbor 10.4.12.2
    Out   20001  interface ATM4/0.120  neighbor 10.4.12.2
  10.2.2.2/32
    In    10002  interface ATM4/0.120  neighbor 10.4.12.2
    Out   20002  interface ATM4/0.120  neighbor 10.4.12.2
  10.3.3.3/32
    In    10005  interface ATM4/0.120  neighbor 10.4.12.2
    Out   20003  interface ATM4/0.120  neighbor 10.4.12.2
  10.4.12.0/30
    In    10003  interface ATM4/0.120  neighbor 10.4.12.2
    Out   20004  interface ATM4/0.120  neighbor 10.4.12.2
  10.4.23.0/30
    In    10004  interface ATM4/0.120  neighbor 10.4.12.2
    Out   20005  interface ATM4/0.120  neighbor 10.4.12.2
show mpls explicit-paths

Use to display all explicit paths or a particular explicit path.

Field descriptions

path name/identifier - name or identifier of explicit path and status, enabled or disabled, followed by list of path links and the IP address for each link's next address

Examples
host1:pe2#show mpls explicit-paths
  path name/identifier rx1-path enabled
    1: next-address 70.70.70.2
    2: next-address 30.30.30.1
  not referenced by any options
  path name/identifier rx1-path2 enabled
    1: next-address 60.60.60.2
    2: next-address 40.40.40.1
  not referenced by any options
host1:pe2#show mpls explicit-paths name rx1-path2
  path name/identifier rx1-path2 enabled
    1: next-address 60.60.60.2
    2: next-address 40.40.40.1
  not referenced by any options
show mpls forwarding

Use to display configuration and statistics for all LSPs or for specific LSPs configured on the LSR.

Field descriptions

for - IP address and mask describing route for which LSP is created

In label - label sent to upstream neighbor for route

Out label - label received from downstream neighbor for route

on - minor interface for LSP

pkts - number of packets sent across LSP

hcpkts - number of high-capacity (64-bit) packets sent across LSP

octets - number of octets sent across LSP

hcoctets - number of high-capacity (64-bit) octets sent across LSP

errors - number of packets that are dropped for some reason before being sent

discardPkts - number of packets that are discarded due to lack of buffer space before being sent

Example
host1:vr2#show mpls forwarding
LSP tail-0a000200-30-42 for  10.0.2.0/255.255.255.252
  In  label 2001 on atm2/1.120
    0 pkts, 0 hcPkts, 0 octets
    0 hcOctets, 0 errors, 0 discardPkts
LSP tail-0a640202-32-43 for  10.100.2.2/255.255.255.255
  In  label 2004 on atm2/1.120
    0 pkts, 0 hcPkts, 0 octets
    0 hcOctets, 0 errors, 0 discardPkts
LSP tail-0a640203-32-45 for  10.100.2.3/255.255.255.255
  In  label 2005 on atm2/1.120
    0 pkts, 0 hcPkts, 0 octets
    0 hcOctets, 0 errors, 0 discardPkts
LSP  to   10.100.3.3/255.255.255.255
  In  label 2006 on atm2/1.120
    0 pkts, 0 hcPkts, 0 octets
    0 hcOctets, 0 errors, 0 discardPkts
  Out label 3006 on atm2/0.230 to 10.0.2.2
    0 pkts, 0 hcPkts, 0 octets
    0 hcOctets, 0 errors, 0 discardPkts
LSP  to   10.100.3.4/255.255.255.255
  In  label 2007 on atm2/1.120
    0 pkts, 0 hcPkts, 0 octets
    0 hcOctets, 0 errors, 0 discardPkts
  Out label 3007 on atm2/0.230 to 10.0.2.2
    0 pkts, 0 hcPkts, 0 octets
    0 hcOctets, 0 errors, 0 discardPkts
Example
    host1:vr2#show mpls forwarding brief
    name/id               destination        label/intf
    tail-0a000200-30-42   10.0.2.0/30        In  2001 on atm2/1.120
    tail-0a640202-32-43   10.100.2.2/32      In  2004 on atm2/1.120
    tail-0a640203-32-45   10.100.2.3/32      In  2005 on atm2/1.120
                          10.100.3.3/32      In  2006 on atm2/1.120
                                             Out 3006 on atm2/0.230 to 10.0.2.2
                          10.100.3.4/32      In  2007 on atm2/1.120
                                             Out 3007 on atm2/0.230 to 10.0.2.2
show mpls interface

Use to display status and configuration information about MPLS interfaces.

Use the shim keyword to display information about shim interfaces. Use the state not-up keyword to display information about interfaces that are not in the up state.

Field descriptions

Interface - specifier and status of each interface

RSVP - status of RSVP, configured or not, and profile used

LDP/CR-LDP - status of LDP and CR-LDP, configured or not, and profile used

IP interfaces on this MPLS interface - IP address of IP interfaces and session status

Session statistics

notf - number of notification messages received or received bad or sent

mapping - number of label mapping messages received or received bad or sent

request - number of label request messages received or received bad or sent

release - number of label release messages received or received bad or sent

withdraw - number of label withdraw messages received or received bad or sent

addr - number of address messages received or received bad or sent

addr withdraw - number of address withdraw messages received or received bad or sent

Adjacency statistics

hello recv - number of hello messages received

hello sent - number of hello messages sent

bad hello recv - number of hello messages received bad

adj setup time - time in HH:MM:SS since adjacency set up

last hello recv time - time in HH:MM:SS since last hello message received

last hello sent time - time in HH:MM:SS since last hello message sent

MPLS Statistics

failed lbl lookup - number of packets received whose labels are not recognized

octets - number of octets received or sent

hcoctets - number of high-capacity (64-bit) octets received or sent

pkts - number of packets received or sent

hcpkts - number of high-capacity (64-bit) packets received or sent

errors - number of packets that are dropped for some reason at receipt or before being sent

discards - number of packets that are discarded due to lack of buffer space at receipt or before being sent

Examples
host1:pe2#show mpls interface 
Interface ATM2/0.120 Up
 RSVP not configured
 LDP/CR-LDP enabled with profile default
 IP interfaces on this MPLS interface:
    100.2.12.1/30
        Session to 2.2.2.2 is operational (passive) 
        Session negotiated LDP advertisement mode is Downstream Unsolicited
        Session statistics:
          3 label alloc, 2 label learned, last reset flag = 0
          last restart time = 00:00:19
          Rcvd: 0 notf, 6 msg, 0 mapping, 0 request
                0 abort, 0 release, 0 withdraw, 1 addr
                0 addr withdraw, 6 msgId, 0 VCId msg
                0 bad mapping, 0 bad request, 0 bad abort, 0 bad release
                0 bad withdraw, 0 bad addr, 0 bad addr withdraw
                0 bad VCId msg, 0 unknown msg type err
                last info err code = 0, 0 loop detected
          Sent: 0 notf, 6 msg, 3 mapping, 0 request
                0 abort, 0 release, 0 withdraw, 1 addr
                0 addr withdraw, 6 msgId, 0 VCId msg
        Adjacency statistics:
          5 hello recv, 4 hello sent, 0 bad hello recv, reset flag = 0 
          adj setup time = 00:00:19
          last hello recv time = 00:00:04, last hello sent time = 00:00:04
MPLS Statistics:
   Rcvd: 0 failed lbl lookup, 0 octets, 0 hcOctets
         0 pkts, 0 hcPkts, 0 errors, 0 discards
   Sent: 0 octets, 0 hcOctets, 0 pkts
         0 hcPkts, 0 errors, 0 discards
   1 adjacency, 1 session
   5 hello recv, 5 hello sent, 0 hello rej
   1 adj setup, 0 adj deleted, reset flag = 0
host1:pe2#show mpls interface
Interface atm2/0.60 Up
 RSVP not configured
 LDP/CR-LDP enabled with profile default
 IP interfaces on this MPLS interface:
    60.60.60.1/16  Session to 4.4.4.4 is operational (active)
 MPLS Statistics:
   Rcvd: 0 failed lbl lookup, 0 octets, 0 hcOctets
         0 pkts, 0 hcPkts, 0 errors, 0 discards
   Sent: 0 octets, 0 hcOctets, 0 pkts
         0 hcPkts, 0 errors, 0 discards
Interface atm2/0.70 Up
 RSVP not configured
 LDP/CR-LDP enabled with profile default
 IP interfaces on this MPLS interface:
    70.70.70.1/16
 MPLS Statistics:
   Rcvd: 0 failed lbl lookup, 0 octets, 0 hcOctets
         0 pkts, 0 hcPkts, 0 errors, 0 discards
   Sent: 0 octets, 0 hcOctets, 0 pkts
         0 hcPkts, 0 errors, 0 discards
host1:pe2#show mpls interface atm 2/0.60
Interface atm2/0.60 Up
 RSVP not configured
 LDP/CR-LDP enabled with profile default
 IP interfaces on this MPLS interface:
    60.60.60.1/16  Session to 4.4.4.4 is operational (active)
 MPLS Statistics:
   Rcvd: 0 failed lbl lookup, 0 octets, 0 hcOctets
         0 pkts, 0 hcPkts, 0 errors, 0 discards
   Sent: 0 octets, 0 hcOctets, 0 pkts
         0 hcPkts, 0 errors, 0 discards
host1:pe2#show mpls interface brief
Interface           IP-Address        Protocol  Status
atm2/0.60           60.60.60.1/16     ldp       Up
atm2/0.70         70.70.70.1/16    ldp      Up
show mpls ldp targeted session

Use to display LDP targeted hello receive or send list, or both.

Field descriptions

D - targeted session created by layer 2 over MPLS connection

S - targeted session statically created by user

A - targeted session created by access list

Used By - letter representing source of targeted session

Example
host1#show mpls ldp targeted session
Mpls Target Session Status:
 D = Dynamically, S = Statically, A = Access List Configured
    Targeted session sent to 6.6.6.6 is Up  Used By: A
    Targeted session sent to 7.7.7.7 is Up  Used By: A
    Targeted session sent to 8.8.8.8 is Up  Used By: A
    Targeted session sent to 9.9.9.9 is Up  Used By: S/A
    Targeted session sent to 10.10.10.10 is Up  Used By: A
    Targeted session sent to 2.2.2.2 is Down  Used By: S
    Targeted session received from 3.3.3.3 is Down Used By: S
show mpls minor-interface

Use to for display all minor interfaces (including those for tunnels) or a specific minor interface in the current router context.

Field descriptions

Tunnel - tunnel name

State - status of tunnel, up or down

LSP setup using - label distribution protocol used to establish tunnel

In, Out Label - label prepended to packets before being sent across tunnel

Residing on - location of tunnel

tunnel is announced to - protocols to which the tunnel is announced

metric - metric type, relative or absolute

pkts - number of packets sent across tunnel

hcpkts - number of high-capacity (64-bit) packets sent across tunnel

octets - number of octets sent across tunnel

hcoctets - number of high-capacity (64-bit) octets sent across tunnel

errors - number of packets that are dropped for some reason before being sent

discardPkts - number of packets that are discarded due to lack of buffer space before being sent

Example
host1:two#show mpls minor-interface 
Tunnel 2 to 0.0.0.0 
  State:  Enabled with Incomplete Config
  LSP setup using cr-ldp
  tunnel not announced to any IGP
  (Global) Retry forever
     at (Global) interval 5 during Lsp setup if there is route
  (Global) Retry forever
     at (Global) interval 5 during Lsp setup if there is no route
  metric is relative 0
Tunnel tail-de090106-1-18a for 222.9.1.2 
  State:  Up
  In  label 20 on ATM3/0.1
    0 pkts, 0 hcPkts, 0 octets
    0 hcOctets, 0 errors, 0 discardPkts
FastEthernet2/4.1 to 222.9.1.3 
  State:  Up
  In  label 25
    14 pkts, 0 hcPkts, 2100 octets
    0 hcOctets, 0 errors, 0 discardPkts
  Out label 18 on  tun mpls:1 nbr 222.9.1.3
 14 pkts, 0 hcPkts, 2100 octets
    0 hcOctets, 0 errors, 0 discardPkts
FastEthernet2/4.1 to 222.9.1.3
  State:  Up
FastEthernet2/4.1 to 222.9.1.3
  State:  Up
  Out label 18 on  tun mpls:1 nbr 222.9.1.3
    14 pkts, 0 hcPkts, 2100 octets
    0 hcOctets, 0 errors, 0 discardPkts
show mpls profile

Use to display a specific LDP, RSVP-TE, or tunnel profile, or all LDP, RSVP-TE, or tunnel profiles.

Field descriptions

profile - number of interfaces that use the profile

session retry - number of attempts that will be made to set up an MPLS LDP session

CR-LDP - status of CR-LDP traffic-engineering extensions to LDP

refresh-period - timeout period in seconds between generation of refresh messages

timeout factor - number of refresh messages that can be lost before the session is ended

Examples
host1:pe2#show mpls ldp profile default
ldp profile default: used by 2 interfaces
   session retry:  10 times at interval 10
   CR-LDP enabled
host1:pe2#show mpls rsvp profile default
RSVP profile default: used by 0 interfaces
    refresh period: 30000 ms
    timeout factor: 3
show mpls rsvp

Use to display RSVP path state control blocks, reservation state control blocks, or session information on the virtual router to assist in debugging.

Sessions can be any of the following:

ingress - originating on the router

egress - terminating on the router

transit - travelling through the router

Field descriptions

PSB - path state control block

RSB - reservation state control block

Sender - IP address of PSB or RSB sender

LSPId - ID of LSP

timeout - amount of time before PSB/RSB times out if no refresh arrives.

InLabel - incoming label information

Associated Minor Interface - tunnel identifier for minor interface for which the RSVP information is displayed

pHopIntf - penultimate hop interface

IncomingIntf - incoming interface

OutgoingIntf - outgoing interface

PHopAddr - penultimate hop address

m_ipNextHopAddr - next hop address

NextHop - type of next hop (loose, strict, session)

LabelRange - RSVP session label range

SenderTSpec - traffic parameters for the sender

Token Bucket Rate - sender's description of generated traffic

Token Bucket Size - sender's description of generated traffic

Peak Data Rate - sender's peak traffic generation rate

Min Policed Unit - minimum packet size generated by sender

Max Packet Size - maximum packet size generated by sender

RRO - record route object

ADSPEC - indicates presence of this QoS object

IN ERO - incoming explicit route object

OUT ERO - outgoing explicit route object

SES ATTR - RSVP session attributes

Setup Pri - setup priority of tunnel

Hold Pri - hold priority of tunnel

name - name of the tunnel

Flags - one or more of the IngressReRoute (the ingress router can reroute the LSP), Local Protection (routers can use local repair mechanism to fix the LSP; this fix might violate the explicit route object associated with the LSP), and MergingPermitted (LSPs can be merged) flags

TTC - indicates presence of the traffic trunk classifier object

Policy Object - indicates presence of the policy object

Unknown Objects - indicates presence objects not defined by the RSVP specification

PSB Flags

InUse - PSB is in use

Deleted - PSB is deleted

NonRsvp - non-RSVP hop present

RouteChangeNotify - route change notification received

EroChanged - explicit route object changed

NextHopChanged - next hop has changed

RtNextHopChanged - routing table next hop changed

EgressStatusChanged - PSB egress status has changed

QosChanged - QoS characteristics have changed

LabelChanged - label has changed

ResvRefreshNeeded - reservation refresh needed

PathRefreshNeeded - path refresh needed

RroRequired - record route object required

Egress - session is egress

PathRefreshSent - path refresh sent

EgressFilterFF - egress filter reservation style Fixed Filter

QosCorrectionNeeded - QoS correction needed

IsPathTrigger - has path refresh been triggered

RSB Flags

InUse - is RSB in use

Deleted - has RSB been deleted

RcvdAck - has ack been received

StyleConverted - has reservation style been converted to shared explicit

IsPathTrigger - has reservation refresh been triggered

Destination - RSVP session destination address

TunnelId - RSVP session tunnel ID

Extended Tunnel Id - RSVP session extended tunnel ID

Examples for an ingress session
host1#show mpls rsvp psb
  PSB: Sender 223.10.1.1 LSPId 1 timeout -- InLabel --
       PHopIntf
       IncomingIntf
       OutgoingIntf ATM2/0.1
       PHopAddr 0.0.0.0 m_ipNextHopAddr 221.1.1.1
       NextHop 221.1.1.1/255.255.255.255 (strict)
       LabelRange --
       SenderTSpec CType IntServ Controlled Load
                   Token Bucket Rate 0
                   Token Bucket Size 0
                   Peak Data Rate 0
                   Min Policed Unit 0
                   Max Packet Size 0
       Flags : InUse
               RroRequired
               PathRefreshSent
host1#show mpls rsvp rsb
  RSB: Timeout 157500 label 1/33
       Flags : InUse
               StyleConverted
host1:two#show mpls rsvp sessions
Destination 222.9.3.1 TunnelId 1 Extended Tunnel Id 
223.10.1.1
  PSB: Sender 223.10.1.1 LSPId 1 timeout 157500 InLabel 17
       Associated Minor Interface: Tunnel 223.10.1.1:1
       PHopIntf ATM2/0.1
       IncomingIntf ATM2/1.1
       OutgoingIntf ATM2/0.3
       PHopAddr 221.1.1.2 m_ipNextHopAddr 122.1.1.1
       NextHop 122.1.1.1/255.255.255.255 (strict)
       LabelRange (generic) min 0 max 1048575
       SenderTSpec CType IntServ Controlled Load
                   Token Bucket Rate 0
                   Token Bucket Size 0
                   Peak Data Rate 0
                   Min Policed Unit 0
                   Max Packet Size 0
       RRO IPv4 hop 221.1.1.2 (strict)
       ADSPEC --
       IN ERO IPv4 hop 221.1.1.1 (strict)
              IPv4 hop 122.1.1.1 (strict)
       OUT ERO IPv4 hop 122.1.1.1 (strict)
       SES ATTR Setup Pri 4, Hold Pri 4, name --
                Flags : IngressReRoute
       TTC --
       Policy Object --
       Unknown Objects --
       Flags : InUse
               PathRefreshSent                                                 
  RSB: Timeout 157500 label 16
       Associated Minor Interface: Tunnel 223.10.1.1:1
       FlowSpec CType IntServ Controlled Load
                Token Bucket Rate 0
                Token Bucket Size 0
                Peak Data Rate 0
                Min Policed Unit 0
                Max Packet Size 0
       RRO IPv4 hop 122.1.1.1 (strict)
       Policy Object --
       Unknown Objects --
       Flags : InUse
               StyleConverted
               ResvRefrSent
show mpls tunnels

Use to display status and configuration for all tunnels or for a specific tunnel in the current router context.

A result of Incomplete Configuration in the display indicates either no tunnel endpoint or no label distribution protocol.

Field descriptions

Label - label prepended to packets before being sent across tunnel

State - status of tunnel, up or down

Residing on - location of tunnel

LSP setup using - label distribution protocol used to establish tunnel

tunnel is announced to - protocols to which the tunnel is announced

metric - metric type, relative or absolute

Mpls Statistics

pkts - number of packets sent across tunnel

hcpkts - number of high-capacity (64-bit) packets sent across tunnel

octets - number of octets sent across tunnel

hcoctets - number of high-capacity (64-bit) octets sent across tunnel

errors - number of packets that are dropped for some reason before being sent

discardPkts - number of packets that are discarded due to lack of buffer space before being sent

Examples
host1:pe2#show mpls tunnels
Tunnel 2 to   0.0.0.0
  State:  Enabled with Incomplete Config
  LSP setup using cr-ldp
  tunnel not announced to any IGP
  (Global) Retry forever
       at (Global) interval 5 during Lsp setup if there is route
  (Global) Retry forever
       at (Global) interval 5 during Lsp setup if there is no route
  metric is relative 0
Tunnel 1 to   222.9.1.3
  State:  Up
  Out label 24 on ATM3/0.1 nbr 10.10.11.5
    14 pkts, 0 hcPkts, 2156 octets
    0 hcOctets, 0 errors, 0 discardPkts
  LSP setup using cr-ldp
  tunnel not announced to any IGP
  (Global) Retry forever
       at (Global) interval 5 during Lsp setup if there is route
  (Global) Retry forever
       at (Global) interval 5 during Lsp setup if there is no route
  metric is relative 0
  path option 2
    option is currently used - path is calculated  by isis
        10.10.11.5
        10.10.12.3
        222.9.1.3
    next reoptimization in 1687 seconds
  stacked labels:
FastEthernet2/4.1     222.9.1.3          R0        Out 18 on  tun mpls:1
Tunnel tail-de090106-1-18a for  222.9.1.2
  State:  Up
  In  label 20 on ATM3/0.1
    0 pkts, 0 hcPkts, 0 octets
0 hcOctets, 0 errors, 0 discardPkts
host1:pe2#show mpls tunnels role head
Tunnel pe2-to-pe1 to   1.1.1.1
  Out Label 300
  State:  Up
  Residing on atm2/0.60
  LSP setup using ldp
  tunnel is announced to  ISIS BGP
  metric is relative 0
  Mpls Statistics:
    0 pkts, 0 hcPkts, 0 octets
    0 hcOctets, 0 errors, 0 discardPkts
host1:pe2#show mpls tunnels role tail
Tunnel  for  2.2.2.2
  In Label 3000
  State:  Up
  Residing on atm2/0.70
  Mpls Statistics:
    0 pkts, 0 hcPkts, 0 octets
    0 hcOctets, 0 errors, 0 discardPkts
host1:pe2#show mpls tunnels destination 2.2.2.2
Tunnel  for  2.2.2.2
  In Label 3000
  State:  Up
  Residing on atm2/0.70
  Mpls Statistics:
    0 pkts, 0 hcPkts, 0 octets
    0 hcOctets, 0 errors, 0 discardPkts
show mpls tunnels brief

Use the brief keyword to display a summary of all MPLS tunnels for the current router context or summary information for a specific tunnel in the current router context.

Field descriptions

name/id - tunnel identifier

destination - tunnel destination; router ID of egress router

metric - value of tunnel metric, relative or absolute

state/label/intf - functional state of tunnel, label prepended to packets sent across tunnel, and interface where tunnel resides

Example
host1:pe2#show mpls tunnels brief
name/id          destination  metric  state/label/intf
vpnEgressLabel3  0.0.0.0      R0      Incoming 1048573 on stack
vpnEgressLabel4  0.0.0.0      R0      Incoming 1048572 on stack
pe2-to-pe1       1.1.1.1      R0      Outgoing 300 on atm2/0.60
                 2.2.2.2      R0      Incoming 3000 on atm2/0.70

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