CSU/DSU and labs

Is there anything different when working with a CSU/DSU WIC in a lab setting? 1T and 2T serial WICs are pretty straight forward but I'm not sure if there would be anything different when using a CSU/DSU WIC. You would just need another CSU/DSU on the other router and run a ethernet cable to the other CSU/DSU card?

With that in mind, $75 dollars for a 2610XM and a CSU/DSU WIC sounds like a pretty good deal, right?

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Comments

Fish!

Yes, WIC-1DSU-T1 cards can be lashed up back to back just like WIC-1T and WIC-2T sync serial cards.

You will need to make a T1 crossover cable:
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4
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Then set one side of the link to use the internal clock source:

R1(config-if)#service-module t1 clock source internal

$75 isn't a bad deal at all for a 2610xm. I've seen prices a little better, and I've seen folks pay a lot more. I just payed $70 shipped last week for a 2610xm with no cards, 48mb (max) flash, and 128mb of ram. I figured it was 2x64mb dimms, and would need a bootrom upgrade to do 256mb, but when I cracked it open today it had it was 1x128mb with the bootrom upgrade! Added a 128mb stick and I was good to go.

Talic

Cool, thanks for the fast reply. I just got a email back from them saying it was a WIC-2t and they made a mistake in saying it was CSU.

They want $100 for both the card and router, maybe I should try $80?

It comes with 96 MB of ram and 32 MB flash, how many slots are available? I sounds like it has a 64 and a 32 dimm installed right now.

I'm starting to think I should just save my money for switches and dynamips the routers, it may head to the 300 dollar range by looking at the way things are going.

tiersten

Talic wrote: »

It comes with 96 MB of ram and 32 MB flash, how many slots are available? I sounds like it has a 64 and a 32 dimm installed right now.

If it is 96MB then is 64+32. A 2600XM has 2 memory slots and 1 flash slot. The boot ROM is in a socket.

If you want to have >128MB memory in total then you need the latest boot ROM.

tiersten

Fish! wrote: »

I just payed $70 shipped last week for a 2610xm with no cards, 48mb (max) flash, and 128mb of ram. I figured it was 2x64mb dimms, and would need a bootrom upgrade to do 256mb, but when I cracked it open today it had it was 1x128mb with the bootrom upgrade! Added a 128mb stick and I was good to go.

One of my 2600XM routers had the updated boot ROM so I upgraded them all myself with an EEPROM programmer. You can either erase the old EEPROM or use a new one.

luke_bibby

Aren't 2610XMs supposed to come with a default of 128D/32F?

Damn pirates hording RAM from routers before selling them!

Fish!

I have another 2610xm that came straight from Cisco with 96M/32F. There was a 32 meg dimm and a 64 meg dimm. It also had the older (7r) bootroms. I guess my point is that they came in a variety of memory configurations from Cisco throughout their production life.

That WIC-2T is worth the extra $25 IMHO. I have three and have been trying to score up two more to complete my BSCI lab, and it looks like I will probably end up paying $30-35 each shipped unless I am patient with eBay, which I am not.