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Monitoring Status and Configuration for MPLS Tunnels
Purpose
Display status and configuration for all tunnels or for a specific tunnel in the current router context.
Action
To display the status and configuration for all tunnels:
host1#show mpls tunnels
Tunnel 1 to 0.0.0.0
State: Enabled with Incomplete Config
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 2 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
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
phb-id 2
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 discardPktsIn the output for Tunnel 2 shown here, the line phb-id 2 indicates that the tunnel is an L-LSP with PHB-ID 2. You can then display the output of the show mpls phb-id command to determine the corresponding PSC.
A result of Incomplete Configuration in the display indicates either no tunnel endpoint or no label distribution protocol.
To display a summary of all MPLS tunnels for the current router context:
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
Meaning
Table 88 lists the show mpls tunnels command output fields.
Table 88: show mpls tunnels Output Fields
Field Name | Field Description |
|---|---|
Label | Label prepended to packets before being sent across tunnel |
State | Status of tunnel: Establishing, Traffic Engineering Negotiation, Up, Down, Enabled with Incomplete Config, Disabled with Incomplete Config, Disabled, or Releasing |
on | Location of tunnel |
tunnel is announced to | Protocols to which the tunnel is announced |
metric | Metric type, relative or absolute |
phb-id | PHB ID supported by this tunnel; for E-LSPs an additional exp-bits entry is displayed after the phb-id entry |
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 |
name/id | Tunnel identifier |
destination | Tunnel destination; router ID of egress router |
metric | Value of tunnel metric and whether the metric is relative (R) or absolute (A) |
state/label/intf | Functional state of tunnel, label for the tunnel, and interface where tunnel resides |
