Router Stack??

Router Stack??

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Subject Author Date
Router Stack?? hhs 05-02-2008
Posted by hhs on May 2, 2008, 3:04 am
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Hi all,

Do anyone have any idea about Router stack? Is it possible to stack a
router? If possible, how can we do it? Is there any special cable like
switch? (switch have a special stack cable)

Thanks,
hhs

Pure Networks
Posted by Paul Matthews on May 2, 2008, 4:26 am
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hhs wrote:

>Do anyone have any idea about Router stack? Is it possible to stack a
>router? If possible, how can we do it? Is there any special cable like
>switch? (switch have a special stack cable)

Why would you want to stack routers? The point of stacking switches is to get
the port density needed while keeping bandwidth high and remaining one spanning
tree device.

If you need that port density and bandwidth, you would be usig a L3 switch
anyway.
--
Paul Matthews CCIE #4063
Please post questions to the NG, NOT by e-mail.

Posted by hhs on May 2, 2008, 4:39 am
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> hhs wrote:
> >Do anyone have any idea about Router stack? Is it possible to stack a
> >router? If possible, how can we do it? Is there any special cable like
> >switch? (switch have a special stack cable)
>
> Why would you want to stack routers? The point of stacking switches is to get
> the port density needed while keeping bandwidth high and remaining one spanning
> tree device.
>
> If you need that port density and bandwidth, you would be usig a L3 switch
> anyway.
> --
> Paul Matthews CCIE #4063
> Please post questions to the NG, NOT by e-mail.

I have a router which is like a central point that link to other
router. (one central router in the city and other routers at the
province connect to that). But now i need to connect more router to
this central router but run out of interface. So it seem like i need
to replace that router? or can the router stack?

Thanks,
hhs

Posted by Sam Wilson on May 2, 2008, 5:19 am
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In article

> > hhs wrote:
> > >Do anyone have any idea about Router stack? Is it possible to stack a
> > >router? If possible, how can we do it? Is there any special cable like
> > >switch? (switch have a special stack cable)
> >
> > Why would you want to stack routers? The point of stacking switches is to
> > get
> > the port density needed while keeping bandwidth high and remaining one
> > spanning
> > tree device.
> >
> > If you need that port density and bandwidth, you would be usig a L3 switch
> > anyway.
>
> I have a router which is like a central point that link to other
> router. (one central router in the city and other routers at the
> province connect to that). But now i need to connect more router to
> this central router but run out of interface. So it seem like i need
> to replace that router? or can the router stack?

Depends what you have as a router. If you're using a 3750 L3 switch as
a router, or if you've filled a 6509 then you can either stack another
3750 onto the first or (if you're very rich) you can link 6509s with the
new VSS feature. I'd be very surprised if you were doing either of
those things so the answer is almost certainly no.

Things you can consider are adding more interfaces to a modular router,
buying a larger modular chassis and reusing your interfaces,
daisychaining routers together, or just buying a bigger router. More
information on what kind of router(s) you have already and the number
and type of interfaces would let people provide better advice.

Sam

(Please follow up to the group - I won't respond to personal email.)

Posted by hhs on May 2, 2008, 5:39 am
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> In article
>
>
>
> > > hhs wrote:
> > > >Do anyone have any idea about Router stack? Is it possible to stack a
> > > >router? If possible, how can we do it? Is there any special cable like
> > > >switch? (switch have a special stack cable)
>
> > > Why would you want to stack routers? The point of stacking switches is to
> > > get
> > > the port density needed while keeping bandwidth high and remaining one
> > > spanning
> > > tree device.
>
> > > If you need that port density and bandwidth, you would be usig a L3 switch
> > > anyway.
>
> > I have a router which is like a central point that link to other
> > router. (one central router in the city and other routers at the
> > province connect to that). But now i need to connect more router to
> > this central router but run out of interface. So it seem like i need
> > to replace that router? or can the router stack?
>
> Depends what you have as a router. If you're using a 3750 L3 switch as
> a router, or if you've filled a 6509 then you can either stack another
> 3750 onto the first or (if you're very rich) you can link 6509s with the
> new VSS feature. I'd be very surprised if you were doing either of
> those things so the answer is almost certainly no.
>
> Things you can consider are adding more interfaces to a modular router,
> buying a larger modular chassis and reusing your interfaces,
> daisychaining routers together, or just buying a bigger router. More
> information on what kind of router(s) you have already and the number
> and type of interfaces would let people provide better advice.
>
> Sam
>
> (Please follow up to the group - I won't respond to personal email.)

Buying a larger modular chassis mean like buying a new routers, right?
What do you mean daisy chaining router? Now i have 2651 which have 2
WIC. (now already use all of 4 interface - 2x WIC-2T). Please advise.

Thanks,
hhs

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