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ping mpls l3vpn
Syntax
ping mpls l3vpn [ vrf vrfName ]
{ targetAddress targetMask | targetIpv6Prefix }
[ destination startIpAddress endIpAddress increment ]
[ source address sourceAddr ] [ [ repeat ] packetCount ]
[ ttl ttlValue ] [ timeout timeOutVal ]
[ data-size dataSize | sweep-sizes sweepMin sweepMax sweepInt ]
[ pad { ones | zeros
| random | hex-data hexData } ]
[ reply mode { ipv4-udp | ipv4-udp-with-router-alert } ]
[ reply pad-tlv ] [ reply dscp trafficClass ]
[ interval txdelayVal ] [
exp-bits bitValue ] [ bottom-label-ttl bottomLabelTtl ]
[ detail ]
Release Information
Command introduced in JUNOSe Release 8.0.0.
Description
Sends an MPLS echo request packet to the specified
L3VPN IP or IPv6 prefix. There is no no version.
The echo request packet generated by this command contains either
the VPN IPv4 sub-TLV or VPN IPv6 sub-TLV described in RFC 4379—Detecting
Multi-Protocol Label Switched (MPLS) Data Plane Failures (February
2006). Which sub-TLV is included depends on whether the ping is intended
for an IPv4 prefix or an IPv6 prefix.
You can use this command to send a request to a VPNv4 prefix
in the specified VRF. If you do not specify a VRF, then you must issue
the command from the VRF context. In any case, the ping originates
from the parent router.
Options
-
vrfName—Name of the VRF context
-
targetAddress—IP address of
the target VPN network
-
targetMask—Netmask for the
target address
-
targetIpv6Prefix—IPv6 prefix
for the target VPN network
-
startIpAddress—First IP address
within the 127.0.0.0/8 destination range
-
endIpAddress—Last IP address
within the 127.0.0.0/8 destination range
-
increment—Number in the range
0–255 that specifies the increment between addresses in the
destination address range
-
sourceAddr—IP address used
as the packet source address
- repeat—Specifies that multiple ping packets are
sent
-
packetCount—Number of packets
to send to the destination address, in the range 0–4294967295;
default value is 5; 0 means ping forever
-
ttlValue—Hop count specified
by setting the time-to-live field in the header, in the range 1–255;
default value is 32
-
timeOutVal—Number of seconds
in the range 1–32 to wait for an MPLS echo reply packet before
the connection attempt times out
-
dataSize—Number of bytes comprising
the MPLS packet, including the header, in the range 0–64000;
default value is 100 bytes
- sweep-sizes—Configures payload sizes, enabling you
to vary the sizes of the echo packets being sent. This capability
is useful for determining the minimum sizes of the MTUs configured
on the nodes along the path to the destination address. This reduces
packet fragmentation which contributes to performance problems. The
default is not to sweep; all packets are the same size.
-
sweepMin—Minimum payload size
in the range 0–64000
-
sweepMax—Maximum payload size
in the range 0–64000
-
sweepInt—Number of bytes to
add to the size of the packet; the change in the size of subsequent
ping packets while sweeping across a range of sizes. For example,
you can configure the sweep interval to sweep across the range of
packets from 0 bytes to 10,000 bytes in increments of sweepInt. By default, send 100, 101, 102, 103...1000. If sweepInt is 5, send 100, 105, 110, 115...1000). When “ sweeping,”
the default interval is 1.
- pad—Specifies the type of bits contained in the
pad TLV. You can set the bits to all ones, all zeros, a random mixture
of ones and zeros, or a specific hexadecimal data pattern, in the
range from 0x0–0xFFFFFFFF. The default data pattern is all zeros.
- reply mode—Specifies the reply mode for the echo
request packet
- ipv4-udp—Specifies that the echo request packet
is an IPv4 UDP packet
- ipv4-udp-with-router-alert—Specifies that the echo
request packet is an IPv4 UDP packet with the router alert bit set
in the header so all routers examine this packet more closely to determine
whether further processing is necessary
- reply pad-tlv—Requests sender of an echo reply to
send a pad TLV
-
trafficClass—Number in the
range 0–255 that represents the value of the traffic class that
the sender of an echo reply is requested to set
-
txDelayVal—Number of milliseconds
in the range 1–50 between transmission of each echo request;
default value is 10 ms
-
bitValue—Value of the EXP
bits in the range 0–7 included in the MPLS echo request packet
-
bottomLabelTtl—Time-to-live
value of the bottom label in the stack
- detail—Displays detailed information about MPLS
echo request sent and echo replies received
Privileged Exec, User Exec
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