2nd 2960 switch

At one of my work sites I want to add an additional managed switch.  There is currently a Cisco 2960G and I want to add a 2nd one because we ran out of ports.  Basically I just want to add ports for a particular Vlan.  
Is there a way to configure these as a stack?  What is the easiest/best way to configure the 2nd switch?
tike55Asked:
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Brian BEE Topic Advisor, Independant Technology ProfessionalCommented:
The best thing to do is buy a stacking cable kit. That will allow you to use the switches together as a single switch.

The other option is to just connect them together with a network cable, but that will cause a bottleneck for any data that has to travel between the two switches.
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tike55Author Commented:
2960's are not stackable.
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tike55Author Commented:
From some quick research I will need to connect them with a simple trunk interface.  What is the easiest/best way to configure the trunk interface?
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Brian BEE Topic Advisor, Independant Technology ProfessionalCommented:
Sorry. Yes, 2960G is not stackable, other 2960 models are, with the addition of a stacking kit.

You'll have to trunk it the other way as I said. I found a good posting that details what to do here:

https://supportforums.cisco.com/t5/lan-switching-and-routing/2960g-stack-to-another-2960g/td-p/1790000
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tike55Author Commented:
I want to keep the current port configuration of the first switch.  Can I just configure 1 port on the server switch for VTP?  Or will I have to completely reconfigure the switch?
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TjnoNetwork AdministratorCommented:
Yes, you have to configure both switches as below:

Switch 1 ----------------------------------- int g0/1 (in both ends) ---------------------------------------Switch2


Switch1#(config) int g0/1
Switch1#(config-if) switchport mode trunk
Switch1#(config-if) switchport trunk encapsulation dot1q


Switch2#(config) int g0/1
Switch2#(config-if) switchport mode trunk
Switch2#(config-if) switchport trunk encapsulation dot1q

Switch1#(config) vtp domain name test.com
Switch1#(config) vtp mode server
Switch1#(config) vtp version 2
Switch1#(config) vtp password secret

Switch2#(config) vtp domain name test.com
Switch2#(config) vtp mode client
Switch2#(config) vtp version 2
Switch2#(config) vtp password secret

if you already had vlan configuration on switch1, that information will be replicated to switch2; then you just need to plug devices into switch2 and assign vlan on those ports of switch for those devices
example:
conf t
int range f0/10 - 20
switchport mode access
switchport access vlan 10
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atlas_shudderedSr. Network EngineerCommented:
What is the exact model of the switch you currently have and what is the model you want to purchase.  That will go a long way in helping to give you a path ahead.  Everything noted above is accurate but not necessarily applicable depending on the model(s) involved.  If you can stack, then you just confirm that the existing switch will remain master in the stack, all other configuration information, except for the individual port configurations for the new switch, would be adopted down by the supplicants.  If you are not able to stack, yes you could use VTP but it is not advisable, better to copy over your base config and clear all the interfaces, etc. then trunk it up.

Once you provide the model numbers then we can move forward on an actual solution instead of the spitballs.
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tike55Author Commented:
Both Switches are 2960G's

I would not like to use VTP.   No Stack Kit available for these switches.   I know how to copy over the base config, but after could you give me an example of  how to trunk it?
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atlas_shudderedSr. Network EngineerCommented:
Tjno has a good example above for building your trunk
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tike55Author Commented:
So Just so I get it right:


Switch #1:  

Switch1#(config) int g0/1
 Switch1#(config-if) switchport mode trunk
 Switch1#(config-if) switchport trunk encapsulation dot1q


Switch #2:
 
 Switch2#(config) int g0/1
 Switch2#(config-if) switchport mode trunk
 Switch2#(config-if) switchport trunk encapsulation dot1q
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atlas_shudderedSr. Network EngineerCommented:
Yes, assuming you are going to use gig0/1 on each switch for the trunk.  If not, change as appropriate.
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tike55Author Commented:
Thanks,

2 more sub-questions:

1) If I add a 2nd network cable/ trunk will it make the performance faster?
2) It would be ideal to add the trunk on one of the fixed ports 45,46,47,48, correct?
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TjnoNetwork AdministratorCommented:
In my opinion:
1. Yes, faster and redundancy
You can also assign which VLAN can transmit through which interface by command:
int g0/1
switchport trunk vlan 10, 20, 30

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2. That is your switch, you can add trunk to any port you like :-) but I usually add trunk in gigabit port
If you were asking about the SFP slots, usually they will be used as trunk when the range is very far (fiber cable will be used in this case)
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