Sorry, I forgot to tell that

eigrpy · ‎09-21-2015

Hi Anyone can explain why it is TFTP when I use command "show ip interface brief" in Cisco 6506. The configuration of two interface(g1/19 and g1/20) is the same. Please see the below. Thank you

6506SW#sh ip int bri

GigabitEthernet1/19 unassigned YES unset down down
GigabitEthernet1/20 unassigned YES TFTP down down
GigabitEthernet1/21 unassigned YES unset down down

6506SW# sh run int g1/19
Building configuration...

Current configuration : 52 bytes
!
interface GigabitEthernet1/19
no ip address
end

6506SW-05# sh run int g1/20
Building configuration...

Current configuration : 52 bytes
!
interface GigabitEthernet1/20
no ip address
end

Suresh Vinayagam Subramanian · ‎09-21-2015

Hi there ,

Though both the interface configuration is same but one is default configuration gi1/21 and another one is not the default configuration .

Gi1/20 shows TFTP because configuration file is obtained from TFTP server .you can verify this using below command.

more nvram:startup-config | in 1/19 --- you will not see any configuration.

more nvram:startup-config | in 1/20 --- you will see any configuration.

When you change the configuration on interface then it will change to " Manual " once you save the configuration (write) and reload the switch then after reload it will be NVRAM .

Example :

GigabitEthernet1/48 unassigned YES unset up up

Loopback0 6.6.9.9 YES TFTP up up

SW3#sh ver | in uptime

SW3 uptime is 26 minutes

GigabitEthernet1/48 3.3.3.3 YES manual up up

Loopback0 6.6.9.9 YES TFTP up up

SW3#write

Building configuration...

GigabitEthernet1/48 3.3.3.3 YES manual up up

Loopback0 6.6.9.9 YES TFTP up up

SW3#reload

GigabitEthernet1/48 3.3.3.3 YES NVRAM up up

Loopback0 6.6.9.9 YES NVRAM up up

SW3#sh ver | in uptime

SW3 uptime is 1 minute

HTH
Regards,
VS.Suresh.
*Plz rate the usefull posts *

eigrpy · ‎09-22-2015

Thank you for your reply. These ports are not connected with TFTP server. I used the command, but it did not show the difference. please see below

C6506(config)#do more nvram:startup-config | in 1/19
interface GigabitEthernet1/19

C6506(config)#do more nvram:startup-config | in 1/20
interface GigabitEthernet1/20

C6506(config)#do more nvram:startup-config | in 1/21
interface GigabitEthernet1/21

Suresh Vinayagam Subramanian · ‎09-23-2015

I meant that config file was obtained from TFTP server not this interface needs to be connected to the tftp server. If we change anything on that interface, that will show as manual and after write memory and reload .

that will show as NVRAM .

Method

The method field has the following possible values:

•RARP or SLARP—Reverse Address Resolution Protocol (RARP) or Serial Line Address Resolution Protocol (SLARP) request

•BOOTP—Bootstrap protocol

•TFTP—Configuration file obtained from TFTP server

•manual—Manually changed by CLI command

•NVRAM—Configuration file in NVRAM

•IPCP—ip address negotiated command

•DHCP—ip address dhcp command

•unassigned—No IP address

•unset—Unset

•other—Unknown

HTH
Regards,
VS.Suresh.
*Plz rate the usefull posts *

eigrpy · ‎09-24-2015

This is a new switch 6506. We have not used it since we bought it. You can see a lot this kind configuration.

C6500#sh ip int bri

GigabitEthernet4/28 unassigned YES unset administratively down down
GigabitEthernet4/29 unassigned YES unset administratively down down
GigabitEthernet4/30 unassigned YES unset administratively down down
GigabitEthernet4/31 unassigned YES unset administratively down down
GigabitEthernet4/32 unassigned YES TFTP administratively down down
GigabitEthernet4/33 unassigned YES TFTP administratively down down
GigabitEthernet4/34 unassigned YES TFTP administratively down down
GigabitEthernet4/35 unassigned YES TFTP administratively down down

Is it possible to be a bug ?

Ganesh Hariharan · ‎09-25-2015

This is a new switch 6506. We have not used it since we bought it. You can see a lot this kind configuration. 

C6500#sh ip int bri

GigabitEthernet4/28    unassigned      YES unset  administratively down down    
GigabitEthernet4/29    unassigned      YES unset  administratively down down    
GigabitEthernet4/30    unassigned      YES unset  administratively down down    
GigabitEthernet4/31    unassigned      YES unset  administratively down down    
GigabitEthernet4/32    unassigned      YES TFTP   administratively down down    
GigabitEthernet4/33    unassigned      YES TFTP   administratively down down    
GigabitEthernet4/34    unassigned      YES TFTP   administratively down down    
GigabitEthernet4/35    unassigned      YES TFTP   administratively down down  

Is it possible to be a bug ?

Hi,

Could you do copy run and startup and reload this switch.

and see the output of show int ip brief..

Hope that Helps..

-GI

Rate if that Helps..

Ganesh Hariharan · ‎09-23-2015

Hi,

Normally If the interface prameters were in the config file at startup, the parameters were assigned when the device booted and the method is NVRAM at start and if the parameters were actively configured the method is manual and will stay that way till the device is rebooted.

So , i believe its how your interface obtains its IP address, below are the possible option

•RARP or SLARP—Reverse Address Resolution Protocol (RARP) or Serial Line Address Resolution Protocol (SLARP) request
•BOOTP—Bootstrap protocol
•TFTP—Configuration file obtained from Trivial File Transfer Protocol (TFTP) server
•manual—Manually changed by CLI command
•NVRAM—Configuration file in nonvolatile RAM (NVRAM)
•IPCP—ip address negotiated command
•DHCP—ip address dhcp command

Hope it Help..

-GI

eigrpy · ‎09-24-2015

Sorry, I forgot to tell that the switch is new and have not been configured since we bought it

Why it is TFTP when I use command "show ip interface brief" in Cisco 6506