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Question about performance on 1721 and 1760

we are currently replacing our wan with vpn. So, we are installing fw/vpn routers at each location. I have prices for both 1721 and 1760. The 1721 has a more attractive price but I am not sure if the 1721 would be powerful enough. The office is small but we will be sending AD replication traffic, ssh/telnet traffic, printing traffic, terminal server traffic and email over the vpn tunnel. We have about 30 people at each site.

Would the 1721 be sufficient? Or should I just buy the 1760 (3k more)

Thanks for any advise.

-J

2 REPLIES
VIP Purple

Re: Question about performance on 1721 and 1760

Hello,

if you do not plan to significantly increase the number of users, the 1721 should be plenty. The 1760 is more of a multiservice platform, but if you are just worried about site-to-site VPN traffic, your potential bottleneck would be the xDSL or WAN connection, and since the 1721 and the 1760 use the same cards, it would not make a difference. Of course this kind of advice is always somewhat arbitrary, but from experience I would say you can go with the 1721.

Regards,

Georg

Bronze

Re: Question about performance on 1721 and 1760

Will the 1721 be doing the IPSec encryption? I ask because software encryption is extremely slow -- I don't know offhand if there's a VPN encryption module for the 1700 series. If the router is going to be doing software encryption then you need to take a long look at what your traffic patterns will be and come up with a maximum bandwidth that the router needs to be able to push. Note that a 2621 can only do around 800kbit/s doing software 3DES, barely half of a T1 -- a 1721 would likely be slower.

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