03-11-2010 05:03 AM - edited 03-06-2019 10:05 AM
Hi all First time here
we were handed a cisco 4948 switch and after some advice to reset it to factory defaults i issued a clear all/non volatile command. this in turn wiped the IOS and it only boots to rommon
so i followed the recovery guide for a 4500 and now i am stuck i get to this bit
12.
Ping the TFTP server by issuing the ping <tftp_server_ip_address> command to make sure the T
server is reachable, as this example shows:
Switch#ping 172.18.125.3
Type escape sequence to abort.
Sending 5, 100−byte ICMP Echos to 172.18.125.3, timeout is 2 seconds:
.!!!!
Success rate is 80 percent (4/5), round−trip min/avg/max = 8/10/16 ms
13.
If the ping is successful, skip to Step 15. If not, make sure you have a connection to the TFTP serv
from the switch. Typically you have to connect one of the regular 10/100 ports or Gigabit ports to
another switch, or connect the TFTP server installed PC directly to one of the switch interfaces.
14.
in rommon i can ping the tftp server but after the image has booted i cant ping the tftp server so i cant copy the flash over
i am using the cat4500-entservices-mz.122-52.SG.bin file
is there something i am wrong ?
any help would be appreciated.
thanks
03-11-2010 06:40 AM
Hello,
after your switch has loaded an IOS via TFTP you need to configure a port on it it has probably an empty configuration
example: use the appropriate interface name
int g0/5
no switchport
ip address 172.18.125.254 255.255.255.0
no sh
connect this port the cable towards TFTP server
you should then be able to ping the TFTP server and to issue a copy tftp flash:
Hope to help
Giuseppe
03-11-2010 09:49 AM
Hi all First time here
we were handed a cisco 4948 switch and after some advice to reset it to factory defaults i issued a clear all/non volatile command. this in turn wiped the IOS and it only boots to rommon
so i followed the recovery guide for a 4500 and now i am stuck i get to this bit
12.
Ping the TFTP server by issuing the pingcommand to make sure the T
server is reachable, as this example shows:
Switch#ping 172.18.125.3
Type escape sequence to abort.
Sending 5, 100−byte ICMP Echos to 172.18.125.3, timeout is 2 seconds:
.!!!!
Success rate is 80 percent (4/5), round−trip min/avg/max = 8/10/16 ms
13.
If the ping is successful, skip to Step 15. If not, make sure you have a connection to the TFTP serv
from the switch. Typically you have to connect one of the regular 10/100 ports or Gigabit ports to
another switch, or connect the TFTP server installed PC directly to one of the switch interfaces.
14.in rommon i can ping the tftp server but after the image has booted i cant ping the tftp server so i cant copy the flash over
i am using the cat4500-entservices-mz.122-52.SG.bin file
is there something i am wrong ?
any help would be appreciated.
thanks
Hi,
If you have booted the ios and you are on switch prompt then as suggested Giuseppe configure a interface with ip address and check the connectivity for tftp server.
Hope to help !!
Ganesh.H
03-12-2010 04:44 AM
Hi thanks for your replies
i have done the suggested but the switch port does not light up
set port 1/46 to 10.8.2.254
no switchport
no shutdown
Sorry am a bit new to cisco
03-12-2010 04:57 AM
Hello,
post
sh run int g1/46
or you used really set commands?
post a sh ver to allow us to see what is running on the switch
see
http://www.cisco.com/en/US/docs/switches/lan/catalyst4900/installation/guide/0bQuick.html
Hope to help
Giuseppe
03-12-2010 05:13 AM
03-12-2010 05:32 AM
Hello,
you may need:
conf t
ip routing
! use the default gateway
ip route 0.0.0.0 0.0.0.0 10.8.2.1
if TFTP server is in another subnet you need to provide a routing path to reach it
also check the state of the interface with
sh interface gi1/46
it should be up/up and ping 10.8.2.254 should be successful
Hope to help
Giuseppe
03-12-2010 08:41 AM
Hi Giuseppe
ok done all that and still no link
int gi 1/46 is showing status down no connect
i'll explain my setup
i have 1 laptop ip 10.8.2.2 connected via terminal cable into cosole port( where i am running commands)
the network connection from the laptop goes to a standard procurve switch
there is 1 connection from the 4948 mgmt port that goes to procurve
mgmt ip 10.8.2.3
in rommon i can ping 10.8.2.2 and boot ios
once booted the switch assigns int gi 1/1 as a fastethernet port int fa 1
it is at this point i configure int gi 1/46 with 10.8.2.254
when i attach a cable nothing lights up
Hope this helps
03-12-2010 09:54 AM
Hello,
sorry my mistake you need to issue also a no shut like in:
Switch1 (config)# ip routing
Switch1 (config)# interface gigabitethernet 24
Switch1 (config-if)# no switchport
>>>> Switch1 (config-if)# no shutdown
Switch1 (config-if)# ip address 10.4.120.106 255.0.0.0
Switch1 (config-if)# exit
see
http://www.cisco.com/en/US/docs/switches/lan/catalyst4900/installation/guide/0bQuick.html#wp1151164
Hope to help
Giuseppe
03-12-2010 10:35 AM
Thanks Giuseppe
i have it now bootflash copied over
i am now doing my testing with the config
Just one last question how do i wipe the config without wiping the IOS
Many thanks for your help..
03-13-2010 01:57 AM
Hello,
it is good that you have been able to copy the IOS in the local flash.
it should be as simple as clear config given in privileged mode.
switch# erase nvram:
>> The erase nvram: command replaces the write erase command and the erase startup-config command.
old command is write erase
Warning:
if you do erase flash: you will delete the IOS image
use dir /all to see all filesystems in your device
you should see nvram:, flash: and other
running-config is in system: that is RAM memory.
it will ask you a confirmation
However, it is difficult you need to do this during lab tests
note: it is handy also the default interface typex/y to reset to default settings a single interface.
you may find out easier to default some interfaces to start a new lab
Hope to help
Giuseppe
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