Ramifications of changing VLAN port assignments

[sigurross]

I need to expand my default vlan by two ports.  There are ports available in other vlans on the switch however, I'm worried about possible downtime.  This switch is used for our phone system to communicate with its various components. 

My current vlan assignments are as follows:

vlan 1
   name "DEFAULT_VLAN"
   untagged 25-28
   ip address x.x.x.x 255.255.0.0
   no untagged 1-24
   exit
vlan 10
   name "elan"
   untagged 1-12
   ip address y.y.y.y 255.255.255.0
   exit
vlan 25
   name "tlan"
   untagged 13-24
   ip address z.z.z.z 255.255.255.0
   exit

Here is what I think the desired changes should look like:

vlan 1
untagged 23-28
no untagged 1-22

vlan 25
untagged 13-22

Will making these changes interupt service?

This switch is a 2610-24

Any advise would be appreciated.  Thanks.

[Alex_Hopkins]

There should be no downtime. The only configuration statements you need are:

vlan 1
untagged 23-24

Good luck.

[sigurross]

not 23-28?

- Jason

[Alex_Hopkins]

23-28 will work as well, but since 25-28 are already in that VLAN, you only need to add 23-24. Same result.