H3C S9500 Series Operation Manual page 1428

Operation Manual – System Maintenance and Debugging
H3C S9500 Series Routing Switches
1.4.3 Enabling the tracemac&pingmac Function
Enter system view
Enable the tracemac&pingmac
function
The tracemac&pingmac functions cannot go without the support of NDP, and will not
work if NDP and tracemac are disabled.
By default, NDP and tracemac&pingmac are disabled.
Caution:
You must disable a Layer 2 protocol (for example, LACP) if the source MAC address of
a packet of the Layer 2 protocol is a bridge MAC address and the packet is independent
of STP and MSTP (that is, the packet can be sent successfully if the STP port is in
Discarding state). Otherwise, the tracemac&pingmac command may fail to work.
1.4.4 Pinging the MAC to Check Network Connectivity and Host Reachability
Enter system view
Enable the global NDP
function
Enter port view
Enable the NDP function
for the port
Ping the MAC to check
the Layer 2 network
connectivity and host
reachability
To do...
To do...
system-view
ndp enable
interface interface-type
interface-number
ndp enable
pingmac mac-address
vlan vlan-id
Chapter 1 System Maintenance and
Use the command...
system-view
tracemac enable
Use the command...
1-6
Debugging
Remarks
—
Disabled by
default.
Remarks
—
Required
Disabled by default.
—
Required
Disabled by default.
You can use this
command in any view.
The output of the
command includes:
destination address
reachable or unreachable.