[c-nsp] Catalyst with HSRP

[Roman Bestuzhev]

Thanks a lot for comments.

About Cat4500+Sup+24Gig Module - it could be a good choice but unfortunately
it is too expensive for me.

Instead, Cat4948 seems to be a real solution. I'll check for its specs in
more details of course. There is a discussion where people say that this
device can support more than 256 hsrp instances. Here is a link:

http://www.merit.edu/mail.archives/nanog/msg00163.html

As for 3560/3750, I tried to configure 3550 and 3750 as hsrp peers for more
than 32 L3 interfaces according to this document:

http://www.cisco.com/en/US/products/hw/switches/ps646/products_qanda_item09186a00801cb707.shtml#q7

I expected that both switches allow me to configure each hsrp group on
several SVIs and therefore I can bypass the limitation and create more than
32 hsrp instances. For 3550 it was so but not for 3750. I may be wrong but
as far as I remember Cat3750 didn't allow me to configure more than 32 hsrp
interfaces. I'll check it again to be sure.

Thanks a lot again.

2007/7/18, Tom Zingale (tomz) <tomz at cisco.com>:
>
> The 3560e/3750e, we can support up to 32 groups but each group can be
> supported across multiple vlans. Therefore, you can have one group on
> multiple VLAN's but it will only count once toward the 32 group limit.
>
>
> > -----Original Message-----
> > From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-
> > bounces at puck.nether.net] On Behalf Of Phil Bedard
> > Sent: Tuesday, July 17, 2007 10:14 AM
> > To: Roman Bestuzhev
> > Cc: cisco-nsp at puck.nether.net
> > Subject: Re: [c-nsp] Catalyst with HSRP
> >
> > A 4500 series switch with a Supervisor IV/V.
> >
> > Phil
> >
> >
> > On Jul 17, 2007, at 12:26 PM, Roman Bestuzhev wrote:
> >
> > > Hello,
> > >
> > > I am trying to choose L2/L3 gigabit Catalyst switch with HSRP
> support.
> > >
> > > The is a requirement that the device must support at least 128
> SVI/L3
> > > interfaces for HSRP (256 or more would be excellent).
> > >
> > > As far as I know, Cat3550 can support 256 HSRP interfaces but it is
> > > supplied
> > > only with 10/100 fast ethernet ports. I was looking at 3560/3750
> > > models and
> > > found that according their documentation they can have only 32 HSRP-
> > > capable
> > > L3 interfaces.
> > >
> > > Is there anyr device with same HSRP capabilities as Cat3550 but
> > > with gigabit
> > > ports which is not so expencive as Cat6500? May be some new IOSes
> > > can help
> > > to bypass a   limitation of 32 HSRP interfaces on 3560/3750.
> > >
> > > --
> > > Roman Bestuzhev,
> > > System Administrator
> > > _______________________________________________
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> >
> >
> >
> >
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>



-- 
Roman Bestuzhev,
System Administrator