Administrator Guide
Password:
Last successful login: 12:52:01 UTC Tue Mar 22 2016 on console
There were 2 unsuccessful login attempt(s) since the last successful login.
There were 3 unsuccessful login attempt(s) for user admin in last 12 day(s).
There were 1 successful login attempt(s) for user admin in the last 30
day(s).
The preceding message shows that the user had previously logged in to the system using the console line. It also
displays the number of unsuccessful login attempts since the last login and the number of unsuccessful login
attempts during a custom time period.
Related
Commands
• login concurrent-session — configures the limit of concurrent sessions for all users on console and virtual
terminal lines.
• show login statistics — displays login statistics of users who have used the console or virtual terminal lines to
log in to the system.
ping
Test connectivity between the system and another device by sending echo requests and waiting for replies.
C9000 Series
Syntax
ping [host | ip-address | ipv6-address] [count {number | continuous}]
[datagram-size] [timeout] [source (ip src-ipv4-address) | interface] [tos] [df-
bit (y|n)] [validate-reply(y|n)] [outgoing-interface] [pattern pattern] [sweep-
min-size] [sweep-max-size] [sweep-interval] [ointerface (ip src-ipv4-address) |
interface]
Parameters
host
(OPTIONAL) Enter the host name of the devices to which you are testing connectivity.
ip-address
(OPTIONAL) Enter the IPv4 address of the device to which you are testing connectivity.
The address must be in the dotted decimal format.
ipv6-address
(OPTIONAL) Enter the IPv6 address, in the x:x:x:x::x format, to which you are testing
connectivity.
NOTE: The :: notation specifies successive hexadecimal fields of zeros.
count
Enter the number of echo packets to be sent. The default is 5.
• number: from 1 to 2147483647
• continuous: transmit echo request continuously
datagram size
Enter the ICMP datagram size. The range is from 36 to 15360 bytes. The default is 100.
timeout
Enter the interval to wait for an echo reply before timing out. The range is from 0 to 3600
seconds. The default is 2 seconds.
source
Enter the IPv4 or IPv6 source ip address or the source interface. For IPv6 addresses, you
may enter global addresses only. Enter the IP address in A.B.C.D format.
• For a Port Channel interface, enter the keyword port-channel then a number: The
range is from 1 to 128.
• For a 10-Gigabit Ethernet interface, enter the keyword TenGigabitEthernet then
the slot/port information.
• For a 40-Gigabit Ethernet interface, enter the keyword fortyGigE then the slot/
port information.
• For a Tunnel interface, enter the keyword tunnel then a number from 1 to 16383.
• For a VLAN interface, enter the keyword vlan then a number from 1 to 4094.
tos
(IPv4 only) Enter the type of service required. The range is from 0 to 255. The default is
0.
df-bit
(IPv4 only) Enter Y or N for the “don't fragment” bit in IPv4 header.
Control and Monitoring 87