Enabling Sending Mpls Ttl-Expired Messages; Enabling Snmp Notifications For Mpls; Displaying And Maintaining Mpls - HP FlexNetwork 10500 Series Configuration Manual

Enabling sending MPLS TTL-expired messages

This feature enables an LSR to generate an ICMP TTL-expired message upon receiving an MPLS
packet with a TTL of 1. If the MPLS packet has only one label, the LSR sends the ICMP TTL-expired
message back to the source through IP routing. If the MPLS packet has multiple labels, the LSR
sends it along the LSP to the egress node, which then sends the message back to the source.
To enable sending MPLS TTL-expired messages:
Step
1. Enter system view.
2. Enable sending MPLS
TTL-expired messages.

Enabling SNMP notifications for MPLS

To report critical MPLS events to an NMS, enable SNMP notifications for MPLS. For MPLS event
notifications to be sent correctly, you must also configure SNMP on the device. For more information
about SNMP configuration, see the network management and monitoring configuration guide for the
device.
To enable SNMP notifications for MPLS:
Step
1. Enter system view.
2. Enable SNMP
notifications for MPLS.

Displaying and maintaining MPLS

Execute display commands in any view and reset commands in user view.
Task
Display MPLS interface information.
Display usage information for MPLS labels.
Display LSP information.
Display MPLS Nexthop Information Base (NIB)
information.
Display usage information for NIDs.
Display LSP statistics.
Display MPLS summary information.
Command
system-view
mpls ttl expiration enable
Command
system-view
snmp-agent trap enable mpls
Command
display mpls interface [ interface-type
interface-number ]
display mpls label { label-value1 [ to label-value2 ] | all }
display mpls lsp [ egress | in-label label-value | ingress
| outgoing-interface interface-type interface-number |
protocol { bgp | ldp | local | rsvp-te [ p2mp ] | static |
static-cr } | transit ] [ vpn-instance vpn-instance-name ]
[ ipv4-address mask-length | ipv6 [ ipv6-address
prefix-length ] ] [ verbose ]
display mpls nib [ nib-id ]
display mpls nid [ nid-value1 [ to nid-value2 ] ]
display mpls lsp statistics [ ipv6 ]
display mpls summary
10
Remarks
N/A
By default, this feature is enabled.
Remarks
N/A
By default, SNMP notifications for
MPLS are enabled.