[c-nsp] Switch cluster with 2950 and 3750 stack

2008-07-07 Thread luismi
Hi all,

I need to redesign an smaill network here.
It is working with now with just a 2950 but I would like to improve the
availability.

I have some dudes that they will be probably answered in some place in
Internet but I didn't find that place yet.

The actual scenario is:
1 x 2950 connected to a 3750 stack

The future scensario I would like to have is:
2 x 2950 connected to a 3750 stack

Well, the reason to use 2950 is that we have several 2950 switches here
and there is no reason to make a new invesment since they are enough for
our requirements, they load is also quite small.

I would like to do a cluster with the 2950 switches probably using some
GigaStack Gbics.

The question is...
As soon as I create the cluster in the 2950 switches, is it possible to
create a port-channel (one port from one 2950 and one port from the
other 2950) against a port-channel at the 3750 stack side?

I hope someone in this list can answer that.

Thanks in advance. 

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Re: [c-nsp] Switch cluster with 2950 and 3750 stack

2008-07-07 Thread Pavel Skovajsa
Hi,
no this is not possible. Etherchannel is always one logical device to
another logical device.

For example two 2950 to each other.
Or stack of 3750 to one 2950
or stack of 3750 to stack of 3750
or the newest edge bleeding etherchannel setup (google up MEC) is: VSS
1440 (2x650x) to 2950

pavel



On Mon, Jul 7, 2008 at 11:16 AM, luismi [EMAIL PROTECTED] wrote:
 Hi all,

 I need to redesign an smaill network here.
 It is working with now with just a 2950 but I would like to improve the
 availability.

 I have some dudes that they will be probably answered in some place in
 Internet but I didn't find that place yet.

 The actual scenario is:
 1 x 2950 connected to a 3750 stack

 The future scensario I would like to have is:
 2 x 2950 connected to a 3750 stack

 Well, the reason to use 2950 is that we have several 2950 switches here
 and there is no reason to make a new invesment since they are enough for
 our requirements, they load is also quite small.

 I would like to do a cluster with the 2950 switches probably using some
 GigaStack Gbics.

 The question is...
 As soon as I create the cluster in the 2950 switches, is it possible to
 create a port-channel (one port from one 2950 and one port from the
 other 2950) against a port-channel at the 3750 stack side?

 I hope someone in this list can answer that.

 Thanks in advance.

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Re: [c-nsp] Switch cluster with 2950 and 3750 stack

2008-07-07 Thread luismi
Thanks for the fast answer!! :D

El lun, 07-07-2008 a las 11:35 +0200, Pavel Skovajsa escribió:
 Hi,
 no this is not possible. Etherchannel is always one logical device to
 another logical device.
 
 For example two 2950 to each other.
 Or stack of 3750 to one 2950
 or stack of 3750 to stack of 3750
 or the newest edge bleeding etherchannel setup (google up MEC) is: VSS
 1440 (2x650x) to 2950
 
 pavel
 
 
 
 On Mon, Jul 7, 2008 at 11:16 AM, luismi [EMAIL PROTECTED] wrote:
  Hi all,
 
  I need to redesign an smaill network here.
  It is working with now with just a 2950 but I would like to improve the
  availability.
 
  I have some dudes that they will be probably answered in some place in
  Internet but I didn't find that place yet.
 
  The actual scenario is:
  1 x 2950 connected to a 3750 stack
 
  The future scensario I would like to have is:
  2 x 2950 connected to a 3750 stack
 
  Well, the reason to use 2950 is that we have several 2950 switches here
  and there is no reason to make a new invesment since they are enough for
  our requirements, they load is also quite small.
 
  I would like to do a cluster with the 2950 switches probably using some
  GigaStack Gbics.
 
  The question is...
  As soon as I create the cluster in the 2950 switches, is it possible to
  create a port-channel (one port from one 2950 and one port from the
  other 2950) against a port-channel at the 3750 stack side?
 
  I hope someone in this list can answer that.
 
  Thanks in advance.
 
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