Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

Bronze

Cisco 1900 series router with 3xT1 links

Anyone know if the Cisco 1900 series routers will support 3 serial T1 links?

I see th 1900 series routers have 2 WAN slots (EHWIC) and was thinking we could install a dual T1 card in one EHWIC slot and a single T1 card in the other slot.

Any ideas?

We will also want to utilize Multilink Frame Relay (MFR) to aggregate the links.

Thanks

Frank

4 ACCEPTED SOLUTIONS

Accepted Solutions
New Member

Re: Cisco 1900 series router with 3xT1 links

Sure they will. Grab a 1941 and put 2 HWIC-2T's in it. Bingo, 4 T1s.

Stay away from HWIC-4, I have timing slips with them. Must be too crowded on the board.

Sent from Cisco Technical Support iPhone App

Re: Cisco 1900 series router with 3xT1 links

Hi Frank,

1000v4 plus 1000v6 is a kind of shame!!!! The 1941 can host many routes more! I actually know about 1 1941 with max RAM memory running with full BGP table... Stay away to repeat this experiment but it did work fine... If your concern is 2x1000 routes routing tables then be happy with the 1900 series. Stay away from the 1921 if you want to set 3xT1 links , better a little bit of margin with these technologies. And they are not that expensive.

Take care

Alessio

Re: Cisco 1900 series router with 3xT1 links

1921 has some limitations that in a 3xT1 context could be important in the evolution of your network. Better spending now 200 dollars more and feeling safe than having to buy a new machine in the near future !!!

Alessio

Sent from Cisco Technical Support iPad App

Super Bronze

Cisco 1900 series router with 3xT1 links

Disclaimer


The   Author of this  posting offers the information contained within this   posting without  consideration and with the reader's understanding that   there's no  implied or expressed suitability or fitness for any  purpose.  Information  provided is for informational purposes only and  should not  be construed  as rendering professional advice of any kind.  Usage of  this posting's  information is solely at reader's own risk.

Liability Disclaimer

In    no event shall Author be liable for any damages whatsoever  (including,   without limitation, damages for loss of use, data or  profit) arising  out  of the use or inability to use the posting's  information even if  Author  has been advised of the possibility of such  damage.

Posting

BTW, Cisco recommends the 1941 for WANs up to 25 Mbps, and documents it maximum performance up to 2.9 Gbps.  The latter is very best case, but the former is generally very conservative.  So if you go beyond 3 T1s, you might find you don't need to replace it with a faster router quite as soon as you might have thought.

8 REPLIES
New Member

Re: Cisco 1900 series router with 3xT1 links

Sure they will. Grab a 1941 and put 2 HWIC-2T's in it. Bingo, 4 T1s.

Stay away from HWIC-4, I have timing slips with them. Must be too crowded on the board.

Sent from Cisco Technical Support iPhone App

Bronze

Cisco 1900 series router with 3xT1 links

Craig,

Thanks!

BTW, any idea what sort of routing table it would hold? Perhaps 1000 v4 and 1000 v6 routes?

Happy Day

Frank

Re: Cisco 1900 series router with 3xT1 links

Hi Frank,

1000v4 plus 1000v6 is a kind of shame!!!! The 1941 can host many routes more! I actually know about 1 1941 with max RAM memory running with full BGP table... Stay away to repeat this experiment but it did work fine... If your concern is 2x1000 routes routing tables then be happy with the 1900 series. Stay away from the 1921 if you want to set 3xT1 links , better a little bit of margin with these technologies. And they are not that expensive.

Take care

Alessio

Bronze

Cisco 1900 series router with 3xT1 links

Good information!! Thanks.

Not sure what you mean about the . . . . . "Stay away from the 1921 if your want....."

Could you elaborate PLEASE?

Tks

Frank

Re: Cisco 1900 series router with 3xT1 links

1921 has some limitations that in a 3xT1 context could be important in the evolution of your network. Better spending now 200 dollars more and feeling safe than having to buy a new machine in the near future !!!

Alessio

Sent from Cisco Technical Support iPad App

Bronze

Cisco 1900 series router with 3xT1 links

Ahhh, yes future growth. Our plan is a max of 3 T1s at any remote site. If a remote site needs additional bandwidth, we move to a less costly DS3 link which will require a different router anyway.

Since the 1941 router will support 3 T1s and cost 1/6 of a 2900 series, we feel this is a better deal for us.

Of course an eval unit will help this decision.

Thanks again for your guidence and help

Please make any suggestions on the 1941 you like, we wanna make the right decision.

THANKS

Frank

Super Bronze

Cisco 1900 series router with 3xT1 links

Disclaimer


The   Author of this  posting offers the information contained within this   posting without  consideration and with the reader's understanding that   there's no  implied or expressed suitability or fitness for any  purpose.  Information  provided is for informational purposes only and  should not  be construed  as rendering professional advice of any kind.  Usage of  this posting's  information is solely at reader's own risk.

Liability Disclaimer

In    no event shall Author be liable for any damages whatsoever  (including,   without limitation, damages for loss of use, data or  profit) arising  out  of the use or inability to use the posting's  information even if  Author  has been advised of the possibility of such  damage.

Posting

BTW, Cisco recommends the 1941 for WANs up to 25 Mbps, and documents it maximum performance up to 2.9 Gbps.  The latter is very best case, but the former is generally very conservative.  So if you go beyond 3 T1s, you might find you don't need to replace it with a faster router quite as soon as you might have thought.

Bronze

Cisco 1900 series router with 3xT1 links

The decision to upgrade from 3 T1s is purely a financial decision. It turns out to be cheaper (monthly Telecom charges, installation and new router) to move to a DS3. AND 6Mbps costing more the 45Mbps is crazy talk.

The main thing I was concerned about was the physical/logical support of 3 T1s and a 2000 prefix routing table (v4/v6) support with this small remote site router. Keep in mind we are not looking at redundancy as we only have a single router anyway.

Much good information, THANKS!!!

Frank

642
Views
0
Helpful
8
Replies
CreatePlease login to create content