Cisco ASR 9000 Serie Configuration Manuals page 288

Configuring the MPLS LSP Monitoring Instance on a Source PE Router
Command or Action
Step 11
scan delete-factor factor-value
Example:
RP/0/RSP0/CPU0:router(config-ipsla-mplslm-lsp-trace)#
scan delete-factor 2
Step 12 timeout milliseconds
Example:
RP/0/RSP0/CPU0:router(config-ipsla-mplslm-lsp-trace)#
timeout 50000
Step 13 lsp selector ipv4 ip-address
Example:
RP/0/RSP0/CPU0:router(config-ipsla-mplslm-lsp-trace)#
lsp selector ipv4 127.10.10.1
Step 14 force explicit-null
Example:
RP/0/RSP0/CPU0:router(config-ipsla-mplslm-lsp-trace)#
force explicit-null
Step 15 reply dscp dscp-bits
Example:
RP/0/RSP0/CPU0:router(config-ipsla-mplslm-lsp-trace)#
reply dscp 5
Step 16
reply mode router-alert
Example:
RP/0/RSP0/CPU0:router(config-ipsla-mplslm-lsp-trace)#
reply mode router-alert
Step 17 ttl time-to-live
Example:
RP/0/RSP0/CPU0:router(config-ipsla-mplslm-lsp-trace)#
ttl 40
Cisco ASR 9000 Series Aggregation Services Router System Monitoring Configuration Guide, Release 4.2.x
272
Implementing IP Service Level Agreements
Purpose
(Optional) Specifies the number of times the MPLS
LSP monitor instance should check the scan queue
before automatically deleting IP SLA operations for
BGP next-hop neighbors that are no longer valid.
The default scan factor is 1. In other words, each time
the MPLS LSP monitor instance checks the scan queue
for updates, it deletes IP SLA operations for BGP
next-hop neighbors that are no longer valid.
If the scan factor is set to 0, IP SLA operations are
never deleted by the MPLS LSP monitor instance. We
do not recommend this configuration.
(Optional) Specifies the amount of time that each
MPLS LSP operation waits for a response from the
LSP verification (LSPV) server. The default value is
5000 milliseconds.
(Optional) Specifies a local host IP address (127.x.x.x)
that is used to select the label switched path (LSP)
from among multiple LSPs. The default value is
127.0.0.1.
(Optional) Specifies whether an explicit null label is
added to the label stack of MPLS LSP echo request
packets. This is disabled by default.
(Optional) Specifies the differentiated services
codepoint (DSCP) value to be used in the IP header
of MPLS LSP echo reply packets.
(Optional) Enables the use of the router alert option
in MPLS LSP echo reply packets. This is disabled by
default.
(Optional) Specifies the maximum hop count for an
echo request packet to be used for MPLS LSP
operations. The default value is 30.