[c-nsp] URGENT isssue w/osm-4oc12-pos-si

F. David Sinn dsinn at dsinn.com
Fri Feb 11 17:52:07 EST 2005


7600's don't deal well with having the same IP address on two 
interfaces, regardless of one being up or down.

Safest path:  Pull the IP's from both interfaces and then re-apply it 
to the new working card.

DAvid

On Feb 11, 2005, at 12:08 PM, Mike Carter wrote:

> The two interfaces in question (POS2/1 is the new card, POS3/4 is the 
> old,
> currently active, card) are configured as follows:
>
> interface POS2/1
>  ip address 64.200.81.218 255.255.255.252
>  shutdown
>  mls qos trust dscp
>  crc 32
> !
>
> interface POS3/4
>  ip address 64.200.81.218 255.255.255.252
>  mls qos trust dscp
>  crc 32
> !
>
> POS3/4 is the interface that currently is working and running.
>
> On Wednesday morning, when I had our hosting facility change the cables
> to the ISP (the old card is MT-RJ, the new card is SC) this is what i 
> did:
>
> first i shutdown the old interface
>
> Router#configure terminal
> Enter configuration commands, one per line.  End with CNTL/Z.
> Router(config)#interface pos3/4
> Router(config-if)#shutdown
> Router(config-if)#exit
>
> at this point the cable was switched, and i brought up the new 
> interface
>
> Router(config)#interface pos2/1
> Router(config-if)#no shutdown
> Router(config-if)#exit
> Router(config)#exit
>
> at which point, I saw the following:
>
> Router#show interfaces | include POS2/1
> POS2/1 is down, line protocol is down
>
> The connection did not work.  I tried different POS locations and
> got nothing.  No link lights, no activity.
>
> we are under the impression that this should just
> work with the card you gave us.  We do not know if any other
> configuration is necessary.  I have been unable to find on the
> internet or in any documentation what we would need to do to
> make this work.
>
> Can a few of the brilliant minds here assist with a 7603 issue at one 
> of our
> customer sites???
>
> TIA---if you need additional info let me know!
>
>
> They have a 7606 with a WS-X6K-S2-MSFC2.
> The original card was a OSM-4OC3-POS-SI. (current/active card)
> They are trying to change over to a OSM-4OC12-POS-SI.  (new card)
>
> The config is somehow messed up so they are only able to get one of 
> the 4
> ports on the OC3 card to come on line.
> That is what prompted the change to the OC12 card.
>
> here is their report...defining the problem
>
> I have also found no information saying that this card will or
> will not do OC3.
>
> Our hosting facility tested the cable with me watching,  it is NOT
> a cable problem.
>
> Since this is a connection that is in development phase, my 
> oppurtunities
> to try things is VERY VERY limited.  We need someone with a solid idea 
> of
> what may be wrong, which I have
>
> The connection WILL be live as of Tuesday morning, after which there 
> will
> be no testing possible without doing it during maintainance windows 
> which
> will be very costly for us.
>
> The actual router set up is simple.  There is nothing at all
> strange going on.  It has two active interfaces:
> 	one POS interface that is to have a /30 between us and the ISP
>
> 	one GigE interface that has our routeable internet network on it
>
> The router has a default route TO the isp.
>
> That's it.  There is nothing else going on on this router at this time.
>
>
>
>
> Michael Carter
> Major Account Manager
> Alta Technologies, Inc
> 763-475-5327  (direct)
> 800-546-2582  (Ext. 327)
> 763-475-5331 (fax)
> AIM  mikec at alta
> mike.c at altatechnologies.com
> www.altatechnologies.com
> SUN CISCO RS/6000 HP-UX OVERLAND STORAGE
> JNI EMULEX Qlogic
>
>
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