Brocade Multi-Service IronWare Administration Guide (Supporting R05.6.00) - Manual (Page 234)

216 Multi-Service IronWare Administration Guide
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LSP ping and traceroute
6
Executing RSVP LSP ping
The RSVP ping command in the (enable) mode, sends an MPLS echo request from the ingress to
the egress LSR.
To perform the RSVP LSP ping operation, use the following command.
Brocade# ping mpls rsvp lsp toxmr2frr-18
Send 5 92-byte MPLS Echo Requests over RSVP LSP toxmr2frr-18, timeout 5000 msec
Type Control-c to abort
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max=0/1/5 ms.
Brocade)#
Syntax: ping mpls rsvp lsp lsp-name | session tunnel-source-address tunnel-destination-address
tunnel-id [count num] [destination ip-address] [detail] [detour] [reply-mode no-reply |
reply-mode router-alert] [reply-tos num] [size bytes] [source ip-address] [standby] [timeout
msec]
The rsvp lsp option specifies the name of the RSVP IPv4 LSP in the lsp-name variable.
The rsvp session option specifies the session ID. The tunnel-source-address, tunnel-
destination-address and tunnel-id variables must all be specified to form a valid session ID.
The count option with the num variable specifies the number of echo requests to send. The default
value is 5.
The destination option specifies an IP address within the 127/8 subnet. The default address is
127.0.0.1
The detail option displays the details of the echo request and reply messages. By default, the
display is in the brief mode.
The detour option specifies a ping detour path. For a detour originated on the ingress LSR, you can
ping the detour path using either the LSP name or session ID with the detour option specified.
The reply-mode option species the reply mode field in the echo request if and only if the user does
not want the reply to be sent as an IPv4 UDP packet.
The no-reply option can be used to test one-way connectivity.
The router-alert option is used when the normal IP return path is unreliable. This option
indicates that the reply should be sent as an IPv4 UDP packet with the Router Alert option. This
option requires extra overhead processing at each LSR along the return path.
The reply-tos option specifies a TOS value between 0 and 254 to be included in the Reply-TOS-byte
TLV. This value will be copied to the IP header TOS byte of the echo reply. By default, the reply-tos
TLV is not included in the echo request.
NOTE
The last bit of the TOS byte is always 0.
The size option specifies that the size of the echo request including the label stack to be sent will
be the value of the variable bytes. The pad TLV is used to fill the echo request message to the
specified size. The minimum size is 92 bytes for an MPLS Echo request. The maximum size is the
size of the LSP MTU.
The source option specifies the IP address of any interface. This address is used as the destination
address for the echo reply address. The default address is the LSR ID.