Configuring Ecmp Ip Slas Tree Trace - Cisco 3845 - Security Bundle Router Software Manual

Chapter 34 Configuring MPLS, MPLS VPN, MPLS OAM, and EoMPLS
Command

Configuring ECMP IP SLAs Tree Trace

Beginning in privileged EXEC mode, follow these steps to use the LSP Health Monitor to configure IP
SLAs ECMP tree trace:
Command
Step 1 configure terminal
Step 2 auto ip sla mpls-lsp-monitor operation-number
Step 3
path-discover
Step 4
force-explicit-null
Step 5 hours-or-statistics kept hours
OL-23400-01
Purpose
• (Optional) reply mode {ipv4 | router-alert}—Specify the reply
mode for the echo request packet. Enter ipv4 to reply with an IPv4
UDP packet (the default) or router-alert to reply with an IPv4 UDP
packet with router alert.
• (Optional) revision —Enter the draft revision number as 1, 2, or 3.
(Optional) source source-address—Specify the source address or the
•
name. This is the destination address in the MPLS echo response.
The default address is loopback0.
(Optional) timeout seconds—Specify the timeout interval for an
•
MPLS request packet. The range is from 0 to 3600 seconds. The
default is 2 seconds.
• (Optional) ttl time-to-live—Specify a time-to-live value. The range
is from 1 to 255.
• (Optional) verbose—Display the MPLS echo reply sender address of
the packet and return codes.
(Optional) revision number—Enter a Cisco-TLV-revision-number, 1
•
through 4.
(Optional) force-explicit-null—Add an explicit NULL label to the
•
end of the label stack.
• (Optional) output interface interface-id—Specify the output
interface for the echo request.
• (Optional) nexthop ip-address—Force packets to go through the
specified next-hop address.
(Optional) flags fec—Request FEC stack checking at the transit
•
router.
Purpose
Enter global configuration mode.
Specify an LSP Health Monitor operation number and enter
auto IP SLAs MPLS configuration mode. The operation
number range is from 1 to 2147483647.
Enter IP SLAs MPLS LSP monitor path discover
configuration mode to configure sending MPLS trace down
all multiple paths (tree trace).
(Optional) Add an explicit null label to all echo request
packets of an IP SLAs Health Monitor operation.
(Optional) Set the number of hours for which LSP discovery
group statistics are maintained for an LSP Health Monitor
operation.
Cisco ME 3800X and 3600X Switch Software Configuration Guide
Configuring MPLS OAM and IP SLAs MPLS
34-57