9
Enabling sending of 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 of MPLS TTL-expired messages:
Step
Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enable sending of MPLS
TTL-expired messages.
mpls ttl expiration enable
By default, this function is
enabled.
Enabling MPLS forwarding statistics
MPLS label forwarding forwards a labeled packet based on its incoming label.
Perform this task to enable MPLS label forwarding statistics and set the statistics collection interval.
Then, you can use the
display mpls lsp verbose
command to view MPLS label forwarding
statistics.
To enable MPLS label forwarding statistics:
Step
Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enable MPLS label
forwarding statistics for
specific LSPs.
mpls statistics
{
all
| [
vpn-instance
vpn-instance-name
]
{
ipv4
ipv4-destination mask-length
|
ipv6
ipv6-destination prefix-length
} |
static
|
te ingress-lsr-id tunnel-id
}
By default, MPLS label forwarding
statistics is disabled for all LSPs.
3.
Set the MPLS label
forwarding statistics
collection interval.
mpls statistics interval interval
By default, the MPLS label
forwarding statistics collection
interval is not set.
Enabling SNMP notifications for MPLS
This feature enables MPLS to generate SNMP notifications. The generated SNMP notifications are
sent to the SNMP module.
For more information about SNMP notifications, see
Network Management and Monitoring
Configuration Guide
.
To enable SNMP notifications for MPLS:
Step
Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enable SNMP
notifications for MPLS.
snmp-agent trap enable mpls
By default, SNMP notifications for
MPLS are enabled.
Содержание FlexNetwork 5510 HI Series
Страница 9: ...vii Remote support 460 Documentation feedback 460 Index 462 ...
Страница 318: ...309 Request list 0 Retransmit list 0 ...
Страница 363: ...354 Verify that CE 1 and CE 2 can ping each other Details not shown ...
Страница 446: ...437 The MCE has redistributed the OSPF routes of the two VPN instances into the EBGP routing tables of PE 1 ...