RE: STP issue

Hi Ryan,

Could you elaborate a bit more plz on "how to position both the 3020's (Cisco)
and their BE switches
 into a Cisco network"

As for shutting the interconnect between the enclosure switches, i don't
believe it will do us any good in case of a misconfiguration error where all 4
ports of the etherchannel go forwarding ( we will still have a STP loop but a
saler one :) )

thx a lot

> From: rwest_at_zyedge.com
> To: hadytannous_at_hotmail.com; sergehh_at_hotmail.com; ccielab_at_groupstudy.com
> Date: Thu, 15 Oct 2009 16:27:09 -0400
> Subject: RE: STP issue
>
> Hady,
>
> Just shut down the interconnect between the enclosure switches. Since the
> enclosures are connected to the 6509's and the 6509's are connected to one
> another, you don't need that extra layer of complexity. HP has some decent
> documentation on how to position both the 3020's (Cisco) and their BE
switches
> into a Cisco network. Might want to give that a shot.
>
> -ryan
>
> From: hady tannous [mailto:hadytannous_at_hotmail.com]
> Sent: Thursday, October 15, 2009 4:12 PM
> To: Ryan West; sergehh_at_hotmail.com; CCIE group study
> Subject: RE: STP issue
>
> Hi Ryan,
>
> Thx for the info. We tested LACP and for some reason it's not working.
Anyway
> i will double check. Moreover the customer has a G1 enclosure which does
not
> support LACP so i'm still faced with the same issue !!!
>
> Any ideas ?
>
> thx
>
> > From: rwest_at_zyedge.com
> > To: hadytannous_at_hotmail.com; sergehh_at_hotmail.com; ccielab_at_groupstudy.com
> > Date: Thu, 15 Oct 2009 09:19:55 -0400
> > Subject: RE: STP issue
> >
> > Hadi,
> >
> > It seems that the HP enclosure G2 should support LACP, try setting that
for
> failure detection.
> >
> >
>
http://209.85.229.132/search?q=cache:SbUH_HtQyd4J:h18004.www1.hp.com/products
>
/quickspecs/13209_na/13209_na.pdf+HP+enclosure+G2+LACP&cd=1&hl=en&ct=clnk&gl=
> us&client=firefox-a
> >
> > -ryan
> >
> > -----Original Message-----
> > From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
hady
> tannous
> > Sent: Thursday, October 15, 2009 1:25 AM
> > To: sergehh_at_hotmail.com; CCIE group study
> > Subject: RE: STP issue
> >
> > Hi,
> >
> >
> >
> > the running config of the interfaces in the etherchannel is the following
:
> >
> >
> >
> > interface gig1/1/3
> >
> > switchport
> >
> > switchport mode access
> >
> > switchport access vlan 10
> >
> > channel-group 10 mode on
> >
> >
> >
> > interface gig1/1/4
> >
> > switchport
> >
> > switchport mode access
> >
> > switchport access vlan 10
> >
> > channel-group 10 mode on
> >
> >
> >
> > interface gig2/1/3
> >
> > switchport
> >
> > switchport mode access
> >
> > switchport access vlan 10
> >
> > channel-group 10 mode on
> >
> >
> >
> > interface gig2/1/4
> >
> > switchport
> >
> > switchport mode access
> >
> > switchport access vlan 10
> >
> > channel-group 10 mode on
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > interface gig1/1/1
> >
> > switchport
> >
> > switchport mode access
> >
> > switchport access vlan 10
> >
> > channel-group 10 mode on
> >
> >
> >
> > interface gig1/1/2
> >
> > switchport
> >
> > switchport mode access
> >
> > switchport access vlan 10
> >
> > channel-group 10 mode on
> >
> >
> >
> > interface gig2/1/1
> >
> > switchport
> >
> > switchport mode access
> >
> > switchport access vlan 10
> >
> > channel-group 10 mode on
> >
> >
> >
> > interface gig2/1/2
> >
> > switchport
> >
> > switchport mode access
> >
> > switchport access vlan 10
> >
> > channel-group 10 mode on
> >
> >
> >
> >
> >
> > The non cisco switches are an HP enclosure G2
> >
> >
> >
> > thx,
> >
> > Hadi
> >
> >
> >
> >
> > From: sergehh_at_hotmail.com
> > To: hadytannous_at_hotmail.com
> > Subject: RE: STP issue
> > Date: Wed, 14 Oct 2009 14:15:48 -0700
> >
> >
> >
> > can you copy paste the configs and the non cisco switch model types and
> > spannning -tree version that the switches are running.
> >
> > > From: hadytannous_at_hotmail.com
> > > To: ccielab_at_groupstudy.com
> > > Subject: STP issue
> > > Date: Wed, 14 Oct 2009 20:43:56 +0000
> > >
> > > Hi,
> > > I have 3 switches connected in a full mesh at a Customer's site.
> > >
> > > One Cisco 6500 switch and 2 NON CISCO switches. The NON CISCO switches
> have
> > > each 4 physical connections with the 6500 and 2 between each others.
the
> > > issue
> > > is the following:
> > >
> > > The NON CISCO switches are supposed to form an etherchannel with the
> 6500,
> > > but
> > > they neither support LACP nor PAGP. Thus the only left etherchannel
> method
> > is
> > > on.
> > >
> > > On the catalyst 6500 the configuration for the etherchannel is correct.
> > >
> > > The Loop occurs when my customer misconfigures the etherchannel from
the
> > NON
> > > CISCO switches side.
> > >
> > > We end up having etherchannel config from one end (6500) and normal
links
> > from
> > > the NON CISCO switches end.
> > >
> > > Since the etherchannel ports on the 6500 will have the same parameters,
> all
> > > the NON CISCO ports will end up forwarding and an STP loop is formed
> > causing
> > > the network to go down.
> > >
> > > Now etherchannel guard is enabled but it's not putting the ports into
> error
> > > disable mode on the 6500 ( I guess because of compatibility between
Cisco
> > and
> > > Non Cisco Switches).
> > >
> > > Is there any way in case the customer misconfigures the NON CISCO
> switches
> > to
> > > prevent a loop ?
> > >
> > >
> > > Thx,
> > > Hadi
> > > _________________________________________________________________
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Received on Fri Oct 16 2009 - 15:48:39 ART