IOS Upgrade to Stack Switch.

Please follow the next steps to upgrade the entire stack:

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If master switch flash (flash 1)  is master here with updated IOS 15.0 Version.

 

1- Delete the old IOS from switches 2,3 & 4

          switch#delete flash2:<old_image>

          switch#delete flash3:<old_image>

          switch#delete flash4:<old_image>

 

2- Now we have enough space to upload the new code for the two members. So please upload the image into the flash

 

3- Verify the integrity of the new image

 

          switch#verify flash:/<new_image>

 

4- Change the boot variable for the entire stack

          switch(config)#boot system switch all flash:<new_image>

 

Note: If the above is not supported we may need to do it manually for each member as like below

 

          switch(config)#boot system switch 2 flash:<new_image>

          switch(config)#boot system switch 3 flash:<new_image>

          switch(config)#boot system switch 4 flash:<new_image>

 

5- For both cases we need to save the changes

          switch#wr

 

6- Need to check that we have the correct boot statement on each switch

          switch#show bootvar

 

7-We can reload the entire stack, after deleted old image, uploaded new one, verified the integrity of the IOS, corrected boot statement.

          Switch#reload slot 3

 

Just for theory -->   Copying the IOS from TFTP server instead from inside the switch.

 

IOS File will be -->  16 to 17 Mb

 

check the space by the command --> dir flash1:

 

If full then delete the IOS --> Switch#delete flash1: flash:c3750-i5-mz.XXX.bin

 

If space exist in Flash then copy IOS --> copy tftp: flash1: Address or name of remote host [172.22.1.165]?

Source filename [c3750−advipservicesk9−mz.122−25.SEE2]? c3750−advipservicesk9−.122−25.SEE2.bin

 

Set the IOS and reload --> Switch#boot system switch 1 flash:/c3750−advipservicesk9−mz.122−25.SEE2.bin

 

 

To Make the Switch as Master :

 

Switch(config)# switch 3 priority 15

 

Priority can be range from 1 to 15

 

 

Switch#write memory

Switch#reload slot 3 

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QOS flow in router

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VPN best practices

1.       Phase 1 life time [ 86400] should be greater than Phase 2 Life time [ 28800].

2.       It is better to disable keep alive if other end is non Cisco device.

 

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Extended ping ToS Value voice

Here's the mapping you will need. "=" means something like "maps to" or "is equivelent to".

ef = dscp 46 = 101110 = tos 0xb8 (184) = ip prec 5

af31 = dscp 26 = 011010 = tos 0x68 (104) = ip prec 3

af32 = dscp 28 = 011100 = tos 0x70 (112) = ip prec 3

cs3 = dscp 24 = 011000 = tos 0x60 (96) = ip prec 3

You'll want to use the decimal tos values (in parenthesis) for your e-pings.

 

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STP CHANGE FROM

STP change FROM

 

 

show spanning-tree detail | inc is executing |topology changes |from

 

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VOICE VOIP

VOICE VOIP

 

1.       Device pool – Group of phone’s parameters  

2.       CSS – List of Partitions

3.       Partition – Associated with numbers [ Group of Numbers]

4.       Route Patten – Out of my Phone system  [ Stamford to Singapore]

5.       Translation Patten – with in my Phone system [ Within Stamford office ].

6.       Route plan report -  When you make call , it checks in route plan for that number and goes out.

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err-disabled

Error Disable

 

Show interface status err

Please consider the environment before printing this e-mail Disclaimer: This  communication  is  for the exclusive use of the intended recipient(s) and  shall  not attach any liability on the originator or ITC Infotech India Ltd./its  Holding company/ its Subsidiaries/ its Group Companies. If you are the addressee, the contents of this e-mail are intended for your use only and it shall  not be forwarded to any third party, without first obtaining written authorization from the originator or ITC Infotech India Ltd./ its Holding company/its  Subsidiaries/ its Group Companies. It may contain information which is confidential and legally privileged and the same shall not be used or dealt with  by any  third  party  in  any manner whatsoever without the specific consent  of  ITC  Infotech India Ltd./ its Holding company/ its Subsidiaries/ its Group Companies.