Extreme Networks ExtremeWare XOS 11.3, Manual

Page: 55 / 698

Checking Basic Connectivity
ExtremeWare XOS 11.3 Concepts Guide
55
If a
ping
request fails, the switch stops sending the request after three attempts. Press [Ctrl] + C to
interrupt a
ping
request earlier. The statistics are tabulated after the ping is interrupted or stops.
You use the
ipv6
variable to ping an IPv6 host by generating an ICMPv6 echo request message and
sending the message to the specified address. If you are contacting an IPv6 link local address, you must
specify the VLAN you are sending the message from, as shown in the following example (you must
include the % sign):
ping <ipv6> <link-local address> %<vlan_name> <host>
.
Traceroute
The
traceroute
command enables you to trace the routed path between the switch and a destination
endstation. The
traceroute
command syntax is:
traceroute {vr <vrid>} {ipv4 <host>} {ipv6 <host>} {ttl <number>} {from <from>} {[port
<port>] | icmp}
where:
●
vr
is the name of the virtual router (the BlackDiamond 8800 family of switches and the Summit
X450 switch do not support user-created VRs).
●
ipv4
/
ipv6
is the transport.
●
from
uses the specified source address in the ICMP packet. If not specified, the address of the
transmitting interface is used.
●
host
is the host of the destination endstation. To use the hostname, you must first configure DNS.
●
ttl
configures the switch to trace the hops until the time-to-live has been exceeded for the switch.
●
port
uses the specified UDP port number.
end-size Specifies an end size for packets to be sent.
udp Specifies that the ping request should use UDP instead of ICMP.
dont-fragment Sets the IP to not fragment the bit.
ttl Sets the TTL value.
tos Sets the TOS value.
interval Sets the time interval between sending out ping requests.
vr Specifies the virtual router name to use for sending out the echo message. If not
specified, VR-Default is used.
NOTE: The BlackDiamond 8800 family of switches and the Summit X450 switch
does not support user-created VRs.
ipv4 Specifies IPv4 transport.
ipv6 Specifies IPv6 transport.
NOTE: If you are contacting an IPv6 link local address, you must specify the VLAN
you sending the message from:
ping <ipv6> <link-local address>
%<vlan_name> <host>
.
host Specifies a host name or IP address (either v4 or v6).
from Uses the specified source address. If not specified, the address of the transmitting
interface is used.
with record-route Sets the traceroute information.
Table 9: Ping command parameters (Continued)
Parameter Description