C
HAPTER
40
| IP Interface Commands
Neighbor Discovery
– 988 –
COMMAND USAGE
â—† Use the ping6 command to see if another site on the network can be
reached, or to evaluate delays over the path.
â—† The same link-local address may be used by different interfaces/nodes
in different zones (RFC 4007). Therefore, when specifying a link-local
address, include zone-id information indicating the VLAN identifier after
the % delimiter. For example, FE80::7272%1 identifies VLAN 1 as the
interface from which the ping is sent.
â—† When pinging a host name, be sure the DNS server has been enabled
(see page 946). If necessary, local devices can also be specified in the
DNS static host table (see page 948).
â—† When using ping6 with a host name, the switch first attempts to
resolve the alias into an IPv6 address before trying to resolve it into an
IPv4 address.
EXAMPLE
Console#ping6 FE80::2E0:CFF:FE00:FC%1/64
Type ESC to abort.
PING to FE80::2E0:CFF:FE00:FC%1/64, by 5 32-byte payload ICMP packets,
timeout is 3 seconds
response time: 20 ms [FE80::2E0:CFF:FE00:FC] seq_no: 1
response time: 0 ms [FE80::2E0:CFF:FE00:FC] seq_no: 2
response time: 0 ms [FE80::2E0:CFF:FE00:FC] seq_no: 3
response time: 0 ms [FE80::2E0:CFF:FE00:FC] seq_no: 4
response time: 0 ms [FE80::2E0:CFF:FE00:FC] seq_no: 5
Ping statistics for FE80::2E0:CFF:FE00:FC%1/64:
5 packets transmitted, 5 packets received (100%), 0 packets lost (0%)
Approximate round trip times:
Minimum = 0 ms, Maximum = 20 ms, Average = 4 ms
Console#
Neighbor Discovery
clear ipv6 neighbors This command deletes all dynamic entries in the IPv6 neighbor discovery
cache.
COMMAND MODE
Privileged Exec
EXAMPLE
The following deletes all dynamic entries in the IPv6 neighbor cache:
Console#clear ipv6 neighbors
Console#
To Next Page
Loading...
Need help?
General