Ttl Expiration Pop - 3Com S7906E Command Reference Manual

-exp exp-value: Specifies the EXP value for the echo request messages. The exp-value argument
ranges from 0 to 7.
-h ttl-value: Specifies the TTL value for the echo request messages. The ttl-value argument ranges from
1 to 255.
-r reply-mode: Specifies the reply mode in response to an echo request message. The reply-mode
argument can be 1 or 2. A value of 1 means "Do not response", while a value of 2 means "Respond
using a UDP packet".
-t time-out: Specifies the timeout interval for the response to an echo request message. The time-out
argument ranges from 0 to 65535 milliseconds.
ipv4 dest-addr mask: Specifies the LDP IPv4 destination address and the mask. The mask argument
ranges from 0 to 32.
destination-ip-addr-header: Specifies the IP header destination address for the MPLS echo request
messages. It can be any address on segment 127.0.0.0/8, that is, any local loopback address.
Description
Use the tracert lsp command to locate an MPLS LSP error.
Examples
# Locate an error along the LSP to 3.3.3.9 on host 1.1.1.1.
<Sysname> tracert lsp ipv4 3.3.3.9 32
LSP Trace Route FEC: LDP IPV4 PREFIX 3.3.3.9/32 , press CTRL_C to break.
TTL Replier
0
1 10.4.5.1
2 100.1.4.2
3 100.1.2.1

ttl expiration pop

Syntax
ttl expiration pop
undo ttl expiration pop
View
MPLS view
Default Level
2: System level
Parameters
None
Description
Use the ttl expiration pop command to specify that ICMP responses travel along the IP route when the
TTL of an MPLS packet expires.
Time Type Downstream
Ingress 10.4.5.1/[1025]
1 Transit 100.3.4.1/[1024]
63 Transit 100.1.2.1/[3]
129 Egress
1-49